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HomeMy WebLinkAbout1.0 ApplicationAcknowledgement of input from the following organizations: C0RDILLERAN 0 Washington Group International Integrated Engineering, Construction, and Management Solutions Che URS iiii two Washington Division CHEVRON PICEANCE BASIN NATURAL GAS DEVELOPMENT PROGRAM STORM-WATER MANAGEMENT PLAN CONSTRUCTION STORM-WATER FIELD PERMIT F Incorporation of site specific information CG RC 08/08 E Incorporations of Washington Group International Revisions KR / RC 08/07 BD ° Cordilleran Revisions -- 6/06; 10/06; 08/07 A Initial Plan — prepared by Cordilleran Compliance Services, Inc. -� 09/05 REV. DESCRIPTION BY CHKD APVD RVWD D DATE REVISIONS CLIENT: Chevron North America Exploration and Production Company PROJECT: Piceance Basin Natural Gas Development Program — Early Production System PROJECT NO.: 29454 — Under Chevron Contract Number C5372I I DOC. NO.: PBSR-ALL-RGL-PMT-URS-00000-00002-00 Table of Contents 1.0 Introduction / Purpose 1 1.1. Regulatory Requirements 1 1.2. Project Location and Description 2 1.3. Project Owner and Operator 2 2.0 Construction Site Characteristics 4 2.1. Physiography, Relief, and Drainage 4 2.2. Soil Characteristics 5 2.2.1. Drainage Area Soils 5 2.2.2. Side Slope Soils 6 2.2.2. Plateau Soils 6 2.3. Vegetative Communities 7 2.4. Regional Climate 7 2.6. Regional Surface Water Classifications 7 3.0 Construction Activities 9 3.1. Well Pad Development Activities 9 3.1.1. Well Pad Development 9 3.1.2. Pipeline Development 10 3.1.3. Road Development 10 3.1.4. Facilities Development 13 4.0 Reclamation During Production Activities 15 4.1. Well Pads Production Activities and Reclamation 15 4.2. Pipeline Completion and Reclamation 16 4.3. Road Completion and Reclamation 16 4.4. Facilities Production Activities and Reclamation 16 5.0 Final Reclamation 18 5.1. Well Pads - Final Reclamation 18 5.2. Pipeline - Final Reclamation 18 5.3. Roads - Final Reclamation 18 5.4. Facilities - Final Reclamation 19 6.0 Potential Pollution Sources 20 7.0 Control Measures — General Descriptions 21 7.1. Soil Erosion and Sediment Controls 21 7.1.1. Sediment Control Berens 21 7.1.2. Check Dams 21 7.1.3. Culverts 21 7.1.4. Culvert Inlet and Outlet Protection 21 7.1.5. Diversions 22 7.1.6. Drainage Dips 22 7.1.7. Erosion Control Blankets and Mats 22 7.1.8. Filter Berms 22 7.1.9. Georidge 22 7.1.10. Gravel Surfacing 22 7.1.11. Land Grading 23 7.1.12. Level Spreader 23 7.1.13. Mulching 23 7.1.14. Retaining Walls 23 7.1.15. Re -vegetation 23 Doc. Na: PBSR-ALL-RGL-PMT-URS-00000-00002-00, Rev. F Skinner Ridge Storm -Water Management Plan Chevron North American Exploration and Production Company i Piceance Basin Natural Gas Development Program 7.1.16. Riprap 23 7.1.17. Roadside Ditches and Turnouts 23 7.1.18. Sediment Traps 24 7.1.19. Silt Fence 24 7.1.20. Slope Drains 24 7.1.21. Stabilized Construction Entrance 24 7.1.22. Straw Bale Barriers 24 7.1.23. Erosion/Sediment Control Log/Wattles 24 7.1.24. Surface Roughening 25 7.1.25. Terracing 25 7.1.26. Vegetative and Grass Buffer 25 7.1.27. Waterbars 25 7.1.28. Diversion Ditch/Berms 25 7.1.29. Slope Stabilization 25 7.1.30. Concrete Washout Facilities 26 7.1.31. Sanitary/Septic (Port -O -Let) Waste Management 26 7.1.32. Inlet Protection 26 7.2. Sources of Additional BMPs 26 7.3. Management of Storm -Water Controls 27 7.4. Other Controls 27 7.4.1. Fuels and Materials Management 27 7.4.2. Other Chemicals Products Management 28 7.4.3. Materials Management 28 7.5. Construction Site Housekeeping 29 8.0 Inspection and Maintenance Procedures 30 9.0 Non -Storm -Water Discharges 32 10.0 Final Stabilization 33 11.0 Owner/Applicant Certification 34 Attachments Maps & Figures Tables Doc. No.: PBSR-ALL-RGL-PMT-URS-00000-00002-00, Rev. F Skinner Ridge Storm -Water Management Plan Chevron North American Exploration and Production Company iE Piceance Basin Natural Gas Development Program 1.0 INTRODUCTION / PURPOSE The following Storm -Water Management Plan (SWMP) was prepared to comply with the Colorado Department of Public Health and the Environment's (CDPHE) General Permit No. COR -030000 issued on July 1, 2007 and expiring on June 30, 2012, and related U.S. Environmental Protection Agency (USEPA) National Pollutant Discharge Elimination System (NPDES) storm -water regulations. Chevron's permit renewal approval is provided in Appendix A. Construction permits are required for oil and gas activities that disturb one or more acres during the life of the project or are part of a larger common plan of development. CDPHE added another option for permits in its Stormwater Fact Sheet—Construction at Oil and Gas Facilities (revised in July 2007), the Field Permit certification. As detailed in the fact sheet, CDPHE recommended that oil and gas developments be covered under a Field Permit certification. The Field Permit covers all construction activities and discharges to waters of the State of Colorado listed in the complete project permit. Chevron North America Exploration and Production Company (Chevron) has amended its original permit renewal application to be covered under a Field Permit rather than a common plan of development, as originally submitted. The purpose of the Master SWMP is to provide information, procedures, and best management practices (BMPs) for all construction and operation activities associated with development of the natural gas resources in the Skinner Ridge Field, known as the Chevron Piceance Basin Natural Gas Development Program (Program). The SWMP will be updated as necessary to address storm -water management and surface -water quality protection for planned developments, new disturbances, and other changes. Site-specific SWMP site maps, based on controls and procedures summarized in the Master SWMP, will be prepared for each facility / construction activity and provided as appendices to this plan. 1.1. Regulatory Requirements The Federal Clean Water Act [Section 402(p)] requires that discharges of pollutants to waters of the United States from any point source be regulated by NPDES permits. In November 1990 the USEPA published final regulations establishing application requirements for storm -water discharges associated with construction activities involving soil disturbances of five acres or more and requiring these disturbances to be regulated as industrial activities covered by an NPDES permit. In December 1999 the USEPA published final Phase II NPDES storm -water regulations establishing application requirements for storm -water discharges associated with construction activities for soil disturbances regulated as industrial activities and covered by an NPDES permit. These regulations became effective July 1, 2002. On June 30, 2005, the State of Colorado storm -water regulations came into effect and required Colorado Discharge Permit System (CDPS) permits from the Water Quality Control Division (the Division) for storm -water discharges resulting small construction sites (those disturbing between one and five acres), including oil and gas sites. CDPS requirements for oil and gas construction sites disturbing five or more acres during the life of the project, or that are part of a larger common plan of development, have been in effect since 1992. Although federal permit coverage for these discharges was conditionally exempted from the Federal Clean Water Act by the 2005 Federal Energy Bill, the Colorado Water Quality Control Commission (WQCC) has maintained the requirement within Colorado's regulations. CDPS requirements are in addition to the Colorado Oil and Gas Conservation Commission (COGCC) erosion control regulations. Doc. No.: PBSR-ALL-RGL-PMT-URS-00000-00002-00, Rev, F Skinner Ridge Storm -Water Management Plan Chevron North American Exploration and Production Company 1 Piceance Basin Natural Gas Development Program 1.2. Project Location and Description The Program is located in Garfield County, Colorado within Townships 5, 6, 7, 8 and 9 South, Ranges 97 and 98 West (Figure 1). The town of De Beque, Colorado, the nearest population center, is located about 14 miles south of the Skinner Ridge Field. Chevron is developing about 33,000 acres in the Piceance basin. The Program anticipates drilling about 2,800 wells over a 14 year period. Design life of the field is projected at 30 years. Field gathering lines collect production fluids from the well pads and transport the full well stream (FWS) to the Production Cluster Pads (PCP) for initial natural gas separation. Discharge lines from the joint trunk lines flow to a Central Production Facility (CPF) (multiple production facilities will be required for the Program). At the production facilities, the natural gas and liquids are further separated. The natural gas is compressed, dehydrated and sent to a sales point through a recently constructed 30 -inch export gas pipeline. Hydrocarbon condensate will be stabilized and stored in holding tanks for transport to processing facilities via tanker truck. Over the next two years, much of the produced water will be used for hydraulic fracturing operations or disposed of in an on-site permitted injection well. In 2010 a water treatment plant is expected to begin operating and remove salts and any remaining hydrocarbons. The treated water will be used for drilling operations and potentially as a potable water supply. Brine and solids are anticipated waste streams from this process. Current plans are to use permitted disposal injection wells for the brine and to transport the solids to a permitted waste disposal facility. The current drilling and development plan includes well pad construction, well drilling, completion and testing, access road improvement/construction, support facility construction (production facilities, offices, water treatment facilities, etc.), utility installation, and pipeline construction. The area of estimated disturbance, including the natural gas well pads, the access roads, and gathering system pipeline, will exceed 370 acres. Disturbance beyond five years will require re-evaluation. Figure 2 shows some of the well pads and facilities associated with the early phases of the Program. 1.3. Project Owner and Operator The property owner and operator is Chevron U.S.A. Inc. The local field address is: Chevron U.S.A. Inc. 760 Horizon Drive Grand Junction, CO 81506 The Chevron contact person for the project is: Michael DeBerry Manager, Piceance Basin Operations 760 Horizon Drive Grand Junction, CO 81506 Office: 970-257-6005. Cell: 307-679-4050 The SWMP Administrator is: Richard Carroll Environmental Specialist, Piceance Basin Operations Chevron MCA Doc. No.: PBSR-ALL-RGL-PMT-URS-00000-00002-00, Rev. F Chevron North American Exploration and Production Company 2 Skinner Ridge Storni-Water Management Plan Piceance Basin Natural Gas Development Program Office: 970-257-6026 Chevron is in charge of all aspects of this project. Contractor(s) will be employed for construction, drilling, and construction management, but all work is supervised by Chevron and all decisions are made by Chevron. Doc. No.: PBSR-ALL-RGL-PMT-URS-00000-00002-00, Rev. F Skinner Ridge Storm -Water Management Plan Chevron North American Exploration and Production Company 3 Piceance Basin Natural Gas Development Program 2.0 CONSTRUCTION SITE CHARACTERISTICS The following information is provided for engineering and planning purposes to assist with facility placement and selection of stabilization techniques and erosion controls. 2.1. Physiography, Relief, and Drainage According to the Natural Resource Conservation Service (NRCS) Soil Survey Map of the Parts of Garfield and Mesa Counties, the subject area is located within the Piceance Basin on the eastern fringe of the Colorado Plateau. It includes the Roan Plateau, Bookcliffs, and is adjacent to portions of the Grand Mesa and Grand Valley areas. It consists of deeply incised valleys, entrenched plateaus, and foothills. The broader portion of the valley is carved out by the Colorado River and its tributaries. Douglas Plateau Area, Colorado, The development site elevation ranges from a valley floor elevation of 5,800 feet to a height of 8,500 feet at the Roan Plateau. The Roan Plateau extends north into Rio Blanco County, and surrounds the Skinner Ridge property. The shallowest stratigraphic unit in the Piceance Basin is the Uinta Formation, which consists of discontinuous layers of silty sandstone, siltstone and marlstone deposits. The Uinta Formation overlies the Green River Formation, which contains vast deposits of oil shale. The Wasatch, Lower Fort Union and Mesaverde Formations underlie the Green River Formation, and consist of sandstones, mudstones, and coal. These formations represent the major gas producing formations of the Piceance Basin. The natural gas occurs as non -conventional gas at the Skinner Ridge development site. Surface and groundwater features are located within the upper reaches of the Clear and Roan Creeks, where the Program area hes. These features consist of ephemeral streams fed by seasonal rainfall and snowtnelt. Springs and seeps are also observed throughout the area. One seep in particular, was harnessed with a cistern and used for habitation of a historical site near the confluence of Tom Creek and Clear Creek. Most of the geological material underlying the Skinner Ridge property is impervious to water. Except for the alluvium within the major streambeds, there is no known extensive aquifer. Developed Spring at the Confluence of Tom and Clear Creeks Doc. No.: PBSR-ALL-RGL-PMT-URS-00000.00002-00, Rev. F Skinner Ridge Storm -Water Management Plan Chevron North American Exploration and Production Company 4 Piceance Basin Natural Gas Development Program The alluvial aquifer consists of narrow and relatively thin sand and gravel deposits adjacent to and beneath Clear Creek. In the northern portion of the development site, the alluvial aquifer is underlain by the confining unit below the Lower Piceance Basin aquifer (Douglas Creek Member of the Green River Formation), which consists of fine-grained sandstone, limestone and shale. And, in the southern portion of the site, the alluvial aquifer is underlain by the Wasatch Fortnation, which consists of sandstone and shale. The Roan Plateau is underlain by the Upper Piceance Basin aquifer (Uinta Formation), which consists of silty sandstone and fractured siltstone. The hydraulic gradient in the bedrock aquifers underlying the Roan Plateau is predominately vertical and downward. However, along the margins of the plateau there are strong horizontal hydraulic gradients flowing toward the cliff faces and valley slopes. Because of these strong horizontal gradients, ground water is discharged from the bedrock aquifers as springs even though the bedrock aquifers dip away from valley slopes. Numerous seeps and springs are present along the valley slopes above Clear Creek and a large seep is present on the valley slope above Tom Creek. 2.2. Soil Characteristics Detailed soil information was collected as part of Chevron's internal Environmental, Social and Health Impact Assessment (ESHIA) (ERM, 2008). Three main groups of soils are present within the Program area: (1) soils along drainages, (2) soils along side slopes, and (3) soils atop plateaus (also referred to as mesas). The soils along the drainages occur on benches, terraces, alluvial fans, and floodplains in the valleys of Roan Creek, Clear Creek, and their tributaries. These soils are deep, well to somewhat poorly drained, and nearly level to gently sloping, with water erosion hazard ranges from slight to severe. The soils found along the drainages include soils that are classified as prime farmland. The soils along the side slopes of Skinner Ridge, Puddin Ridge, and other slopes along the mesa and other mountain slopes, are dominated by shallow, poorly developed soils and rock outcrops. These soils have a severe erosion potential and some have very steep slopes that limit their potential for construction and re -vegetation. The soils on the plateaus and mesa tops are mostly well -drained, cool soils, with dark -colored, organic -rich surface layers. These soils have a slight to severe erosion potential. Table 1 (see Tables attachment) lists the prominent soil types and their susceptibility to erosion. Table 2 (see Tables attachment) provides additional details of the individual soil types including soil textures, profile, vegetative types, slope, and erodability. Figure 3 provides a graphical representation of the locations of the prominent soils (Ref: Figure 4-14 ESHIA report) (see Maps & Figures attachment). Erosion susceptibility is presented graphically as Figure 4 (Ref: Figure 16-1 ESHIA report) (see Maps & Figures attachment). For preliminary site erosion control requirements, Tables 1 and 2 should be used in combination with Figure 3 and 4 to determine soil types and characteristics. 2.2.1. Drainage Area Soils These soils formed from alluvial material from sandstone and shale, and occur on benches, terraces, alluvial fans, and floodplains in the valley of the Roan, Willow, Brush, and Clear Creek, and other unnamed tributaries. These soils are deep, well to somewhat poorly drained, and nearly Doc. No.: PE3SR-ALL-RGL-PMT-URS-00000-00002-00, Rev. F Skinner Ridge Storm -Water Management Plan Chevron North American Exploration and Production Company 5 Piceance Basin Natural Gas Development Program level to gently sloping. Surface textures range from loam and sandy loam to clay. The spoils are calcareous, moderately to strongly alkaline, and some are highly saline. Permeability ranges from very slow to moderately rapid, and soils are classified as prime farmland (Curnulic Haploborolls, Dominguez, and Panitchen) and hydric soils 2.2.2. Side Slope Soils The soils formed along the side slopes of Skinner Ridge, Brush and Kimball mountains, and other mountains ranges in the Piceance Basin, are dominated by shallow, poorly developed soils and rock outcrops (e.g., Torriorthent-Rock Outcrop and Utso-Rock Outcrop map units). Below the cliffs and talus is a zone of soils formed from colluvial material. This zone includes rock outcrops, badlands, moderately sloping valleys, and fans draining into Roan Creek. These soils have a severe erosion potential and some have very steep slopes that limit their potential for construction. Typical Program Area Cliffs I Side Slopes The badlands are steep, nearly barren and dissected by numerous ephemeral drainages. Soils on the upper slopes have a thin organic -rich surface layer and exhibit little soil development. Soils on the lower slopes range from shallow to moderately deep and are well drained. Side slope grades are presented graphically in Figure 5 (Ref: Figure 16-2 ESHIA report) (see Maps & Figures attachment). 2.2.3. Plateau Soils These soils formed in material weathered from the Green River Formation shale and Uinta Formation sandstone, and are mostly well -drained, cool soils, with dark -colored, organic -rich surface layers. The surface textures are generally loam, with loam to clay loam subsoils and channery profiles (sandstone and shale fragments). Soil thickness ranges from deep (>60 inches) in swales to shallow (<20 inches) on ridge tops. These soils have a moderate permeability and a slight to severe erosion potential. Doc. No.: PBSR-ALL-RGI. PMT -URS -00000-00002-00, Rev. F Skinner Ridge Storni-Water Management Plan Chevron North American Exploration and Production Company 6 Piceance Basin Natural Gas Development Program 2.3. Vegetative Communities The eleven vegetation communities that were found in the Program area are listed below and shown as Figure 3 (see Maps & Figures). The vegetation communities in the Program area reflect the wide ranges of elevation, topography, aspect, and moisture. Aspen forests, deciduous oak shrublands, Douglas fir forests, mesio upland shrub communities, and mountain sagebrush shrublands are common in the higher elevations of the Program area. Big sagebrush shrublands, riparian areas, and irrigated cropland are present in the deep valleys. Juniper woodland forests, greasewood flats, and desert shrub communities are common on the exposed steep slopes, in dryer areas, and on shale plateaus. Vegetation communities have developed across the landscape in response to climate, disturbance, and other environmental factors. Vegetation Community Type Percent of Study Area Aspen forest 4.0 Big sagebrush 2.6 Desert shrub 1.2 Douglas fir forest land 6.2 Exposed rock 1.0 Forest -dominated riparian 1.1 Greasewood fans and flats 1.3 Irrigated cropland 7.6 Juniper woodland forest land 5.2 Mesic upland shrub 22.2 Mountain sagebrush 46.7 Additional information about vegetation communities associated with the various soil types is presented in Table 2. Identification of the vegetative community to be disturbed is very important, because some types are more sensitive to disturbance, while others are far more resilient. 2.4. Regional Climate Climate information was collected as part of the ESHIA study. The ESHIA report describes the general climate of the study area as influenced by dry air, sunny days, clear nights, variable precipitation, with moderate evaporation and large diurnal temperature changes. These are generally due to changes in topography between the valleys and mesas. Annual precipitation ranges from about 10 to 20 inches. Seasonal and daily temperatures vary with elevation and, to a lesser extent, local microclimates. Daily temperatures, in degrees Fahrenheit, in the summer usually range from the upper 40s to the lower 80s in mountain terrains, and mid 90s in the western valleys. In the winter, cold air commonly accumulates in the valleys. Prevailing winds in the upper levels of the atmosphere are mostly from the southwest, but local air movements are strongly influenced by topography including elevated mesas, steep slopes, narrow canyons and rough terrain in the Study Area. 2.5. Regional Surface Water Classifications The initial Program area lies in the Roan Creek watershed, which includes Clear Creek and its tributaries, with future development in the Parachute Creek watershed. Under the Colorado Water Quality Control Commission, Regulation 37, Regulations for the Lower Colorado Basin, these are named Segments 14a and 14b of the Lower Colorado River Basin and Sub -basin. Segment 14a includes the mainstem of Roan Creek including all wetlands and tributaries, from the source to a point immediately above the confluence with Clear Creek (except for a listing in Segment 14b); Clear Creek, including all tributaries and wetlands, from the source to a point Doc. No.: PBSR-ALL-RGL-PMT-URS-00000-00002-00, Rev. F Skinner Ridge Storm -Water Management Plan Chevron North American Exploration and Production Company 7 Piceat ce Basin Natural Gas Development Program immediately below the confluence of Tom Creek. Segment 14b consists of Clear Creek, including all tributaries and wetlands, from a point immediately below the confluence with Tom Creek to the confluence with Roan Creek; Roan Creek, including all tributaries and wetlands, from a point immediately above the confluence with Clear Creek to a point immediately below the confluence with Kimball Creek. Segment 14a is designated as reviewable and its classified beneficial uses are: aquatic life class one cold, recreation P (primary contact), water supply, and agriculture (irrigation and cattle grazing). At a recent rulemaking hearing (June 2008), the Division indicated that this segment warranted a cold temperature standard tier I, due to the presence of brook and cutthroat trout. This is indicative of a sensitive habitat that should utilize greater protection when considering disturbance and proper selection of stabilization and erosion controls [typically referred to as Best Management Practices (BMPs)]. Segment 14b has the same designation and classified use; however, it has a cold temperature standard tier I1, for the presence of rainbow and brown trout, mottled sculpin, mountain whitefish, longnose sucker, and Arctic grayling. Again these designations are indicative of a sensitive habitat warranting greater proper selection of BMPs. protection when considering disturbance Doc. No.: P13SR-ALL-RGL-PMT-URS-00000-00002-00, Rev. F Skinner Ridge Storm -Water Management Plan Chevron North American Exploration and Production Company 8 Piceance Basin Natural Gas Development Program 3.0 CONSTRUCTION ACTIVITIES As mentioned in Section 1.2 the development of the Program will involve multiple construction activities including well pad construction, well drilling, completion and testing, access road improvement/construction, support facility construction (production facilities, offices, water treatment facilities, etc.), utility installation, and pipeline construction. The following sections provide general descriptions of these activities and the measures that will be used to minimize the Program impacts. 3.1. Well Pad Development Activities The well pad development phase includes the following activities: pad construction, well drilling, well completion, gas line installation, and pad area reclamation. Pad reclamation is accomplished by backfilling the reserve pit, contouring disturbed soils to conform with the surrounding terrain, replacing the stockpiled top soil, seeding of disturbed soil areas in order to re-establish a cover vegetation, and construction of erosion and sediment control structures. The completion of the wells (gas production) generally triggers a one-year time period in which the reclamation phase of work should be completed. The final stabilization seed mixture for locations above and below 7,000 feet is provided in a re -vegetation specification provided as an attachment. 3.1.1. Well Pad Development During the initial stages of the well pad construction, heavy equipment will be used to shape and contour the site and any access roads. Design and construction techniques and other practices are to be employed to minimize surface disturbance and the associated effects of proposed operations and maintain the reclamation potential of the site. A typical well pad will be approximately 200 feet by 400 feet, though dimensions may vary due to topography and production. Because of the location of the project, steep slopes are expected to be encountered at many of the projected well pad sites. Many of the sites will require vertical cuts and steep fill slopes. Steps will be taken to avoid or mitigate construction in riparian areas and other areas deemed as areas subject to severe erosion. The well site will also be reviewed to determine its effect on the location of the access road. Construction procedures will be implemented that minimize surface disturbance. All topsoil is to be removed from the entire cut and fill area and stored in a designated stockpile for reuse during interim and final reclamation. Topsoil must be segregated and stored separately from subsurface materials to avoid mixing during construction, storage, and interim reclamation. Stockpiles should be properly located and protected so minimize wind and water erosion and maximize available topsoil for reclamation. Excavation of the cut and fill slopes is normally guided by information on the slope stakes. Fills should be compacted to minimize the chance of slope failure. If excess cut material exists after fill areas have been brought to grade, the excess material will be stockpiled at approved locations. The area of the well pad where the drilling rig substructure is located should be level and capable of supporting the rig. The area to be used for mud tanks, mud storage, drilling chemicals, and fuel tanks should be at a slight slope, where possible, or a suitable alternative such as ditching should be used to provide drainage from the work area to a reserve pit. Doc. No.: PBSR-ALL-RGL-PMT-URS-00000-00002-00, Rev. F Skinner Ridge Storm -Water Management Plan Chevron North American Exploration and Production Company 9 Piceance Basin Natural Gas Development Program To reduce erosion and soil loss, it may be appropriate to divert storm water away from well locations with ditches, berms, or waterbars above the cut slopes and to trap well location runoff and sediments on or near the location through use of sediment controls. Sediment controls will dominate this early phase of construction. Temporary BMPs such as silt fences and erosion/sediment control log/wattles will be used in the initial stages to provide perimeter sediment runoff control. As the construction work progresses and the contour of the site are completed, more permanent structural and non-structural BMPs will be implemented. The focus in these later changes will be on implementing effective erosion controls and in attempting to re -vegetate disturbed areas with native grass seed mix. A summary of the primary Program BMPs is provided in Section 7. The attachment includes information on BMPs, including where and when to use them, their limitations, along with construction details and maintenance requirements. A site specific SWMP map will be developed for each well pad as part of the engineering design and provided as an attachment to this plan. 3.1.2. Pipeline Development Steep hillsides and water courses should be avoided when locating pipeline routes. When clearing, the width disturbed should be kept to a minimum. During the excavation phase, designated topsoil stockpiles must be established to the side of the pipeline construction routes. Topsoil material must be segregated and not be mixed or covered with subsurface material. Bladed materials must be placed back into the cleared route upon completion of construction and returned back to the original contour before reapplying topsoil. Pipeline trenches should be compacted during backfilling. After construction, cut -and -fill slopes must be re -graded to conform to the adjacent terrain and reclaimed. Pipeline right-of-way must be maintained in order to correct backfill settling and prevent erosion. Appropriate BMPs must be used in sensitive areas to ensure proper site stabilization. Site specific SWMP for each pipeline corridor will be developed as part of the engineering design and provided as an attachment to this plan. Pipeline construction should not block, dam, or change the natural course of any drainage. Suspended pipelines should provide adequate clearance for high-flow events. Pipelines buried across stream crossings should be buried below the scouring depth. Pipelines crossing streams or wetlands will require a U.S. Army Corp of Engineers (USACE) Nationwide or Individual (developed for the entire Program). This requirement may be avoided by boring under these areas. 3.1.3. Road Development Roads used to access oil and gas locations are rarely permanent and exist only as long as necessary to complete exploration and production operations. Things to consider when constructing a road: • Road width, maximum grade, and crown design. Doc. No.: PBSR-ALL-RGL-PMT-URS-00000.00002-00, Rev. F Skinner Ridge Storm -Water Management Plan Chevron North American Exploration and Production Company 10 Piceance Basin Natural Gas Development Program • Location of turnouts. • Plans for soils, hydrology, and topography -- dependant drainage, including ditches and locations and sizes of culverts and bridges. • On and off-site erosion control. • Plans for revegetation of disturbed areas. • Fence cuts and cattle guards. • Major cuts and fill. • Source and storage sites for topsoil. • Plans for maintaining roads. All roads must be designed, constructed, and maintained in a safe and environmentally responsible manner. Roads have the potential to cause environmental harm through erosion, air pollution, stream degradation, habitat alteration, and increased public use. Careful attention to the proposed road location and design can significantly minimize environmental impacts. When selecting a location for new roads, consider following topographic contours. Following natural contours preserves natural drainage patterns and typically results in lower costs and less impact on the environment. Initial steps in road location include: • Determine the intended use of the road including seasonal use, type of vehicles to be used, and amount of traffic, and safety. • Examine biological, physical, and cultural conditions of the area. • Consider geotechnical factors including soil type, construction / reclamation limits, landslide areas, water problem areas, etc. Basic Design Requirements: • Design for pre -determined speed limit. • Typically width is 24 feet with turnouts in areas where width is les than 16 feet. • Road gradient has major impact on erosion and visual impact. Follow natural terrain as closely as possible. If terrain allows, gradient should not exceed 8 percent except for short distances of 300 feet or less. • Drainage control must be ensured over the entire road through the use of drainage dips, in sloping, natural rolling topography, ditch turnouts, ditches, or culverts. Ditches and culverts may be required in some situations depending on grades, soils, and local hydrology. If culverts or drainage crossings are needed, they should be designed for a 25 year or greater storm frequency. • Gravel may be needed for "soft" road sections, steep grades, highly erosive soils, and clay spoils. • Culverts should be designed for 25 year (one-hour duration) storm frequency with an allowable head that does not overlap the roadway. The minimum size culvert diameter is 18 inches. Construction: • Excavation and fill construction will be performed to secure the greatest practicable degree of roadbed compaction and stability. • Use of excess excavation material, where practical, shall be practiced to improve the road grade or to flatten fill. • Roadbed materials shall be placed parallel to the axis of the roadway in even, continuous horizontal layers. Doc. No.: PBSR-ALL-RGL-PMT-URS-00000-00002-00, Rev. F Skinner Ridge Storm -Water Management Plan Chevron North American Exploration and Production Company 11 Piceance Basin Natural Gas Development Program Surface and Drainage Structures: • The proper design and construction of structures for the surface drainage of water from or through the roadway contributes the most to the long-term success of the road and structure, and minimizes maintenance and adverse environmental effects such as sediment erosion and sediment production. It is vitally important to keep water off the road. Surface drainage provides for the interception, collection, and removal of water from the surface of roads and sloped areas. The design may need to allow for debris passage, mud flows, and water heavily laden with silt, sand, and gravel. • The need for drainage structures can be minimized by proper road location. However, properly designed drainage is essential for a stable road. Drainage system must include the best combination of various design elements, such as ditches, culverts, drainage dips, crown, in -slope or out -slope, low water crossings, subsurface drains, and bridges. • Drainage Structures — Proper location and design can provide economical and efficient drainage. Structural measures are often required to ensure proper and adequate drainage. Some of the most common structures are drainage dips, ditches, road crowning, culverts, bridges, and low water crossings. o Drainage Dips — The primary purpose of a drainage dip is to intercept and remove surface water from the roadway and shoulders before the combination before the combination of water volume and velocity begins to erode the surface materials. Spacing of drainage dips depends upon local conditions such as soil material, grade, and topography. o Ditches - The design of ditches must consider the resource objectives for soil, water, maintenance capabilities and associated costs. Ditch grades should be no less than 0.5 percent to allow for positive drainage and avoid sedimentation. O Road Crowning — Crowning provides good drainage of water from the surface of the road. Drainage of the inside ditch and side hill runoff is essential if the road is to be kept dry and passable during wet weather. o Culverts — Culverts are used in two applications: (1) to allow the normal drainage from streams and gullies to flow under the roadway and (2) to drain inside road ditches. All culverts should be laid on natural ground or at the original elevation of any drainage crossed, except as noted below for ditch relief culverts. Culvert diameter design criteria should be a minimum of 18 inches. A hydrological / hydraulic analysis should be performed to determine the amount of water anticipated to flow through the culvert. Analytical factors that must be considered include the delineation of the drainage basin, soil types, drainage area slopes, and at a minimum a 25 -year (one-hour duration) precipitation event. The outlet for all culverts should extend at least one foot beyond the toe of any slope. It may be necessary to install rip -rap or other energy dissipation devices at the outlet end of the culverts to prevent soil erosion and trap sediment. All culverts used in the construction of access roads should be concrete or corrugated metal pipe (made of steel). Properly bedded and backfilled corrugated plastic pipe may be used for secondary drainage but should not be used as part of any roadbed. Evacuation, bedding, and backfilling of culverts should be conducted according to Program specifications. Ditch relief culverts are installed to periodically relieve the ditch line flow by piping water to the opposite side of the road where the flow can be dissipated away from the roadway. The spacing of ditch relief culverts is dependant on the road gradient, soil types, and runoff characteristics. The depth of culvert burial must be sufficient to ensure the culvert is protected for its design life. Doc. No.: PBSR-ALL-RGL-PMT-URS-00000-00002-00, Rev. F Skinner Ridge Storm -Water Management Plan Chevron North American Exploration and Production Company 12 Piccance Basin Natural Gas Development Program This requires anticipating the amount of material that may be lost due to road use and erosion. The culvert gradient should be greater than the approach stream or ditch gradient. This improves the flow hydraulics and reduces sedimentation and debris plugging at the culvert inlet. Additional factors to consider for construction activities involving drainage channels: Bridges and Major Culverts: • Construction of some stream crossings may require a USACE Nationwide (404) or Individual Permit. Where a road is open to public travel, applications will be prepared and submitted with sufficient time allowed for any required public comment input periods and approval of the permit by the surface management agency. Wetlands: • Wetlands are especially sensitive areas and should be avoided, if possible. Generally, these areas require crossings that prevent unnatural fluctuations in water level. Under wetland circumstances, culverts should be designed with a flat grade so water can flow either direction and maintain its natural level on both sides. Special attention should be given to selection of culvert materials that will resist corrosion. Low Water Crossings: • Roads may cross small drainages and intermittent streams where culverts and bridges are unnecessary. The crossing can be effectively accomplished by dipping the road down to the bed of the drainage. The construction of gravel, rip -rap, or concrete bottoms may be required. In no case should the drainage be filled so that water will be impounded. Low water crossings that are not surfaced should not be used in wet conditions. Appropriate BMPs must be used in sensitive areas to ensure proper site stabilization. Site specific SWMP for all road construction or improvements will be developed as part of the engineering design and provided as an attachment to this plan. 3.1.4. Facilities Development The category of Facilities is intended to capture all projects constructed in a supporting role to the production facilities previously described. Program facilities will include offices, maintenance facilities, water storage and treatment facilities, compressor stations, man camps, and communication towers. Site specific SWMP for each facility will be developed as part of the engineering design and provided as an attachment to this plan. During the initial stages of construction, heavy equipment will be used to shape and contour the construction site and any access roads. Design and construction techniques and other practices are to be employed to minimize surface disturbance and the associated effects of proposed operations and maintain the reclamation potential of the site. Steps will be taken to avoid or mitigate construction on steep slopes, riparian areas and other areas deemed as areas subject to severe erosion. Construction procedures will seek to minimize surface disturbance. All topsoil, when practical, is to be removed from the entire cut and fill area and stored in a designated stockpile for reuse during interim and final reclamation. Topsoil must be segregated and stored separately from subsurface materials to avoid mixing during construction, storage, and interim reclamation. Stockpiles should be properly located and protected so minimize wind and water erosion and maximize available topsoil for reclamation. Doc. No.: PBSR-ALL-RGL-PMT-URS-00000-00002-00, Rev. F Skinner Ridge Storm -Water Management Plan Chevron North American Exploration and Production Company 13 Piceance Basin Natural Gas Development Program To reduce erosion and soil loss, it may be appropriate to divert stormwater away from facility construction sites with ditches, berms, or waterbars above the cut slopes and to trap well location runoff and sediments on or near the location through use of sediment controls. Sediment controls will dominate this early phase of construction. Temporary BMPs such as silt fences and erosion/sediment control log/wattles will be used in the initial stages to provide perimeter sediment runoff control. As the construction work progresses and the contour of the site are completed, more permanent structural and non-structural BMPs will be implemented. The focus in these later changes will be on implementing effective erosion controls and in attempting to re -vegetate disturbed areas with native grass seed mix. A summary of the primary Program BMPs is provided in Section 7. The attachment includes information on BMPs, including where and when to use them, their limitations, along with construction details and maintenance requirements. Doc. No.: PBSR-ALL-RGL-PMT-URS-00000-00002-04, Rev. F Skinner Ridge Storm -Water Management Plan Chevron Nortlt American Exploration and Production Company 14 Piceance Basin Natural Gas Development Program 4.0 RECLAMATION DURING PRODUCTION ACTIVITIES The production phase follows the development phase and includes the operation and maintenance activities that will be conducted during natural gas production. The typical equipment on a pad during the production phase consists of a wellhead, a separation unit, from one to several 300 - barrel capacity aboveground tanks for condensate, and an above ground tank for storing produced water. Gas pipelines are also installed during this phase of work. Reclamation activities during this phase include maintenance of re -vegetated areas and maintenance of the erosion and sediment control structures and BMPs that will remain in place following the development phase. Natural gas wells in the Skinner Ridge area are projected to produce for about 20 to 30 years. 4.1. Well Pads Production Activities and Reclamation Once the well pad site is constructed, drilling operations will begin. Depending on the number of wells to be completed and the local conditions encountered, drilling operations at a specific well pad may take six to nine months to complete. Each pad will have reserve pit(s) to handle and contain drilling fluids and cuttings. As part of drilling operations, chemicals used in drilling operations will be stored onsite. A comprehensive list of chemicals that will be used at well pads is provided as an attachment to this plan. Petroleum products also may be present at the well pads, including gasoline, diesel fuel, lubricant oils, hydraulic oils, used oils, and solvents. Ditches will be placed around chemical storage areas to capture and direct any spills to a well cellar. Well pad drainage is designed to flow to the reserve pits in the event of a large spill or release. Drip pans will be utilized if necessary. All wastes will be placed and stored in the proper receptacles prior to removal for off- site disposal. All storage of petroleum products will be in accordance with the Piceance Basin Field Spill Prevention Control and Countermeasures (SPCC) Plan. Housekeeping will be maintained in all chemical storage areas. All containers are to remain closed except when adding or removing materials. Where appropriate, materials will be stored in designated buildings / cabinets to prevent their containers from being exposed to precipitation events. Inspection of chemical storage areas will be included as part of the SWMP inspection program The production phase includes the operation and maintenance activities associated with natural gas production. Typical well pad equipment includes a wellhead, a separation unit and one or more 400 barrel (42 gallons per barrel) capacity above ground storage tank(s) containing condensate and or produced water. Secondary containment will be provided around chemical storage areas including condensate tanks and separators. Reclamation activities during this phase include maintenance of re -vegetated areas and maintenance of the erosion and sediment controls structures. Installation, inspection and maintenance of BMPs to control sediment runoff will continue as needed. New BMPs will be installed and maintained as required. Once drilling operations have been completed and prior to beginning production, parts of the well pad will be reclaimed. Initial pad reclamation is accomplished by backfilling the reserve pit, contouring the disturbed soils to confortn to the surrounding terrain, replacing stockpiled top soil, Doc. No.: PBSR-ALL-RGL-PMT-URS-00000-00002-00, Rev. F Skinner Ridge Storm -Water Management Plan Chevron North American Exploration and Production Company 15 Piceance Basin Natural Gas Development Program seeding of disturbed soil areas in order to reestablish a cover vegetation, and construction of erosion and sediment control structures. Oil and gas sites are considered stabilized once site preparation and interim reclamation are complete, and the above final stabilization criteria have been met, even though the site will be disturbed again in the future for final reclamation. Interim reclamation consists of minimizing the footprint of disturbance by reclaiming all portions of the well site not needed for production operations. The portions of the well site not needed for operations and safety purposes will be re -graded to a final or intermediate contour that blend with the surrounding topography as much as possible. Topsoil will be re -spread over areas not needed for all weather purposes. "Final stabilization" means that all ground surface disturbing activities at the site have been completed, and all disturbed areas have been either built on, paved, or a uniform vegetative cover has been established with an individual plant density of at least 70 percent of per -disturbance levels. 4.2. Pipeline Completion and Reclamation Pipeline route reclamation involves placing fill in trenches, compacting fill, re -grading cut and fill slopes to restore the original contours, replacing topsoil, installing temporary waterbars and silt fencing only where necessary to control erosion, and re -vegetation. Waterbars and other appropriate BMPs must be maintained and repaired as necessary. Following successful re - vegetation, remaining waterbars are to be flattened to blend with the slope. 4.3. Road Completion and Reclamation Maintenance activities normally required include blading, surface replacement, dust control, spot repairs, slide removal, ditch cleaning, culvert cleaning, litter pickup, noxious weed control, maintenance of interim reclamation, and snow removal. Additional inspections and maintenance may be needed during periods of snowmelt or heavy, prolonged rainfall to look for drainage, erosion, or sedimentation problems. Re -vegetation of road ditches and cut and fill slopes will help stabilize exposed soils and reduce sediment loss, reduce the growth of noxious weeds, reduce maintenance costs, maintain scenic quality and forage, and protect habitat. To ensure successful growth of vegetation, topsoil must be stored in designated stockpiles (where available) during road construction and re -distributed on cut slopes, fill slopes, and borrow ditches prior to re -vegetation activities. 4.4. Facilities Production Activities and Reclamation Many of the facilities constructed will be active for as long as the field is in production. As part of operations, materials and chemicals may be stored onsite. All product and any generated wastes will be placed and stored in the proper receptacles prior to use or removal for off-site disposal. Where appropriate, secondary containment may be provided for storage of materials, chemicals, and wastes and/or stored in an appropriate building / cabinet. All chemical storage will be in accordance with the Piceance Basin Field SPCC plan. Housekeeping will be maintained in all chemical storage areas. All containers are to remain closed except when transferring materials in and out of the container. Where appropriate, materials will be stored to prevent their containers from being exposed to precipitation events. Doc. No.: PBSR-ALL-RGL-PMT-URS-00000-00002-00, Rev. F Skinner Ridge Storm -Water Management Plan Chevron North American Exploration and Production Company 16 Piceance Basin Natural Gas Development Program Interim reclamation consists of minimizing the footprint of disturbance by reclaiming all portions of the site not needed for support of production operations. The portions of the site not needed are to be re -graded to a final or intermediate contour that blends with the surrounding topography as much as possible. Topsoil will be re -spread over areas not needed for all weather purposes and the areas will be re -vegetated with native grasses. "Final stabilization" means that all ground surface disturbing activities at the site have been completed, and all disturbed areas have been either built on, paved, or a uniform vegetative cover has been established with an individual plant density of at feast 70 percent of per -disturbance levels. Documented inspections will be performed during this period to ensure proper site stabilization. Doc. No.: PBSR-ALL-RGL-PMT-URS-00000-00002.00, Rev. F Skinner Ridge Storm -Water Management Plan Chevron North American Exploration and Production Company 17 Piceance Basin Natural Gas Development Program 5.0 FINAL RECLAMATION Following the development and production phases, pad areas will be reclaimed by contouring disturbed soils to conform to the surrounding terrain, replacing the stockpiled top soil, seeding of disturbed soil areas in order to re-establish cover vegetation, and construction of erosion and sediment control structures and BMPs that will remain in place following the development and production phases, as needed. Once stabilization is achieved, defined as uniform vegetative cover established with a density of at least 70 percent of pre -disturbance levels, a well pad may be removed from the SWMP inspection requirements. BMPs will stay in effect as an ongoing company practice to ensure proper management of storm water protection. If petroleum hydrocarbons or other chemicals impact storm water as a result of industrial activities onsite, the impacted storm -water will be addressed by following the Piceance Basin Field SPCC plan. 5.1. Well Pads - Final Reclamation The site will be reclaimed after the end of its operational life in accordance with local, state and federal requirements. Following well plugging, reclamation activities will include removing all production equipment and re -grading the site to the original contours of the surrounding terrain. All excavations and pits must be closed by backfilling when they are dry and free of waste. Subsequent steps include replacement of topsoil, re -vegetation of the site with the appropriate seed mix (see Erosion Control attachment), and installation and maintenance of storm -water controls until final stabilization is achieved. Water breaks and terracing should only be installed when absolutely necessary to prevent erosion of fill material and should be removed when the site is successfully revegetated and stabilized. 5.2. Pipeline - Final Reclamation Final abandonment of pipelines and flowlines will involve flushing and properly disposing of any residual fluids remaining in the lines. All pipeline sections that have become exposed due to water or wind erosion, soil movement, or anticipated subsequent use, must be removed. Deeply buried lines may remain in place unless otherwise directed by the authorizing agency. 5.3. Roads - Final Reclamation Roads used to access oil and gas locations are typically constructed for that primary purpose, are rarely permanent, and exist only as long as necessary to complete exploration and production operations. Final reclamation includes re -grading the road back to the original contour, seeding, controlling noxious weeds, and may include other techniques to improve reclamation success such as ripping, scarifying, replacing topsoil, placing waterbars, pitting, and mulching. Seeds of native, perennial species will be used. Doc. No.: PBSR-ALL-RGL-PMT-URS-00000-00002-00, Rev. F Skinner Ridge Storm -Water Management Plan Chevron North American Exploration and Production Company l8 Piceance Basin Natural Gas Development Program 5.4. Facilities - Final Reclamation The site will be reclaimed after the end of its operational life in accordance with local, state and federal requirements. Reclamation activities will include removing all buildings and equipment and re -grading the site to the original contours of the surrounding terrain. Subsequent steps include replacement of topsoil, re -vegetation of the site with the appropriate seed mix, and installation and maintenance of storm -water controls until final stabilization is achieved. Water breaks and terracing should only be installed when absolutely necessary to prevent erosion of fill material and should be removed when the site is successfully re -vegetated and stabilized. Doc. No.: PBSR-ALL-RGL-PMT-URS-00000-00002-00, Rev. F Skinner Ridge Storm -Water Management Plan Chevron North American Exploration and Production Company 19 Piceance Basin Natural Gas Development Program 6.0 POTENTIAL POLLUTION SOURCES Potential pollution sources associated with construction sites and natural gas development include: • Sediment resulting from erosion of soil stockpiles and other areas cleared of vegetation; • Leakage of fuels and lubricants from equipment and spills from fueling; • Trash and debris from clearing activities, construction materials, and workers; • Leakage from portable restroom facilities; • Leakage or spills from storage tanks and process equipment associated with natural gas development; • Concrete washout water; • Vehicle tracking The most common source of pollution from pad and access road construction is sediment, which can be carried away from the work site with storm -water runoff and impact the water quality of a receiving stream. Clearing, grading, and otherwise altering previously undisturbed land can increase the rate of soil erosion over pre -disturbance rates. Refined petroleum products can also be potential storm -water pollutants. These products are used in construction activities to power or lubricate equipment and include: fuel, gear oil, hydraulic oil, brake fluid, and grease. Loading and unloading of condensate and produced water from above ground storage tanks are common and regular activities within the Skinner Ridge project area and represents storm -water contamination potential. Debris from laydown areas, residue from equipment cleaning and maintenance, and solid waste generated from land clearing operations and human activity (trees, brush, paper, trash, etc.) present other potential pollution sources within the construction site. Spills or leaks from potential sources are described in detail in the SPCC plan. Response to certain events may require specialized training due to health and safety concerns. For a list of down -hole chemicals including mud additives used during development activities please refer to the Down -Hole Chemical List provided as an attachment to this plan. Servicing and improper installation of portable restrooms is a potential source of biocides and wastewater that may enter nearby waterways. Concrete trucks must be rinsed out prior to leaving the site and this water has the potential to contaminate storm water if not properly handled. Typically concrete wash out waters will be diverted to reserve pits or other designated earthen impoundments to capture and evaporate wash out water. Doc. No.: PBSR-ALL-RGL-PMT-URS-00000-00002-00, Rev. F Skinner Ridge Storm -Water Management Plan Chevron North American Exploration and Production Company 20 Piceance Basin Natural Gas Development Program 7.0 CONTROL MEASURES — GENERAL DESCRIPTIONS The objective of erosion and sediment controls is to minimize the release of sediments carried to waterways by storm -water runoff. This objective can be accomplished through the use of structural and/or nonstructural controls. The following sections provide a description of typical BMPs, including physical structures employed to prevent soil erosion, work practices and managerial controls used to prevent storm -water impacts, and fuels, chemicals, and materials handling practices. The use of a combination of these BMPs will prevent and/or minimize storm - water impacts. 7.1. Soil Erosion and Sediment Controls This section briefly describes the physical erosion and sediment controls to be used at active construction sites to minimize possible sediment impacts to storm -water runoff. For specific BMP installation details and selection guidelines refer the Typical Storm -Water BMP Details provided as an attachment to this plan. The attachment includes detailed descriptions of BMPs, including information on where and when the use of individual BMPs is recommended; limitations and where and when they should not be used; construction details and maintenance requirements; and associated photographs and figures. 7.1.1. Sediment Control Berms A sediment control berm is a ridge of compacted soil located at the top or base of a sloping disturbed area to contain or divert surface runoff. Where used, soil beans shall be constructed of soil with sufficient fines to minimize flow through the berm. The purpose of a berm is to control runoff velocity, divert onsite surface runoff to a sediment trapping or filtration device and/or divert clean water away from disturbed areas. 7.I.2. Check Dams Check dams are small, temporary dams constructed across a diversion or roadside ditch. Check dams can be constructed using gravel, rock, gravel bags, geo-ridges, earth with erosion control blanketing/matting, straw bales, or erosion/sediment control log/wattles and are used to slow the velocity of concentrated flow in a channel. As a secondary function, check dams can also be used to catch sediment from the channel itself or from the contributing drainage area as stormwater runoff flows through or over the structure. 7.1.3. Culverts Culverts are typically used to move ditch water under roads or to direct stream flow under the access roads. Culverts are typically constructed out of concrete, steel, aluminum, or plastic pipe. Where used, culverts should have inlet and outlet protection features to minimize erosion such as placing a non -woven textile material under rip rap at each end of the culvert. 7.1.4. Culvert Inlet and Outlet Protection Culvert inlet and outlet protection are protective measure BMPs installed to prevent erosion, scour, and undercutting at culvert inlet and outlets. The most common materials used for culvert inlet and outlet protection are erosion control blankets/mats and riprap. These materials are placed at culvert inlets and outlets to prevent erosion, scour, and undercutting. Doc. No.: PBSR-ALL-RGL-PMT-URS-00000-00002-00, Rev. F Skinner Ridge Storm -Water Management Plan Chevron North American Exploration and Production Company 21 Piceance Basin Natural Gas Development Program 7.1.5. Diversions Permanent diversion berms and structures control stormwater runoff by using a channel and an earthen ridge to prevent sediment laden storm runoff from leaving the construction site, well pad or other disturbed area, to prevent flows from eroding slopes, and to direct sediment laden flows to a trapping device. Diversions are most often constructed of earthen materials with vegetative cover and are best used with channel linings such as vegetation or matting. Diversions are typically used wherever the direction and velocity of runoff from up slope areas needs to be controlled. A good example would be diverting upgradient surface runoff away from a well pad. Channels and berms must be designed to manage peak storm flow and must be stabilized to prevent erosion of the channels. 7.1.6. Drainage Dips Drainage dips intercept and remove surface water from the access roads, pads, facilities, pipelines, and roadside ditches (before the combination of water volume and velocity begin to create erosion). Drainage dips are constructed diagonally across the flowline of the surface water and will allow the passage of slow traffic while dispersing surface water. 7.1.7. Erosion Control Blankets and Mats Erosion control blankets, and turf reinforcement mats (TRM), are porous fabrics and are manufactured by weaving or bonding fibers made from organic or synthetic materials together to create a fabric blanket or mat. Erosion control blankets and TRMs are installed on steep slopes, over berms, or in channels to prevent erosion until final vegetation is established. Erosion control blankets and TRMs can also be used as separators or to aid in plant growth. 7.1.8. Filter Berms A filter berm is temporary ridge made up of natural materials that already occur on the project site. Brush filter berms use small tree branches, root mats, grass, leaves, stone or other debris or material naturally available or let over from the site clearing and grubbing. Rock filter berms use site gravel, stone, or rock. Both types of filter berms are placed along a level contour to slow, filter, and divert flow and act as an efficient form of sediment control. 7.1.9. Georidge GeoRidge® is a permeable ditch berm designed for erosion and sediment control. The use of GeoRidge® reduces flow velocities and provides a smoother water flow resulting in less erosional energy, and thus minimizing the problem of downstream sediment transport and deposition. 7.1.10. Gravel Surfacing Gravel surfacing may be used to cover soil in areas of high traffic such as roads, facility areas, and areas near the well heads. Gravel surfacing forms a layer that protects and minimizes soil erosion and vehicle soil tracking. Doc. No.: PBSR-ALL-RGL-PMT-URS-00000-00002-00, Rev, F Skinner Ridge Storm -Water Management Plan Chevron North American Exploration and Production Company 22 Piceance Basin Natural Gas Development Program 7.1.11. Land Grading Grading involves reshaping the ground surface to planned grades as determined by an engineering survey, evaluation, and layout. Grading provides more suitable topography for well pads, pipelines, facilities, and access roads, and helps to control surface runoff, soil erosion, and sedimentation during and after construction in these areas. Grading also includes road crowning and sloping to properly route runoff off roads. 7.1.12. Level Spreader A level spreader is a BMP used to prevent erosion and to improve infiltration by spreading concentrated stormwater runoff evenly over the ground as shallow sheet flow instead of through channels. It usually involves a depression in the soil surface that disperses flow onto a flatter area across a slight slope and then releases the flow onto level vegetated areas. This reduces flow speed, increases infiltration rates, and promotes evaporation. 7.1.13. Mulching Mulching is a temporary erosion control practice in which materials such as grass, straw, hay, wood fibers or wood chips are placed on exposed or recently planted soil surfaces. Mulching stabilizes soils by minimizing rainfall impact (rilling) and reducing stormwater runoff velocity. When mulching is used in combination with seeding, surface soils retain moisture, promote seed germination, and help insulate roots from extremes temperatures. 7.1.14. Retaining Walls Retaining walls are structures that are used to stabilize and hold soil in place, gain space on roadways or well pads, or to keep soil contained within a site boundary. This BMP can be constructed with rock, boulders, and/or cement blocks. 7.1.15. Re -vegetation Re -vegetation involves planting seed to establish a vegetative cover on disturbed areas. Re - vegetation reduces erosion and sedimentation by stabilizing disturbed areas in a manner that is economical and adaptable to site conditions. It also reduces runoff volumes by increasing water percolation into the soil, binds soil with roots, and protects soil from wind erosion. The permanent seed mix, rate, and application method is detailed in the URS Specification for the Re - vegetation of Disturbed Areas, which is provided as an attachment to the plan. 7.1.16. Riprap Riprap is a permanent, erosion -resistant layer made of stones, rock, or boulders. It is intended to stabilize areas subject to erosion and protect against scour of the soil caused by concentrated, high velocity flows. 7.1.17. Roadside Ditches and Turnouts Roadside ditches are channels constructed parallel to roads. The ditches convey concentrated runoff of surface water from roads and surrounding areas to a stabilized outlet. Turnouts are used to effectively remove run-off water from the roadside ditch into well -stabilized areas before it reaches a waterway. Doc. No.: PBSR-ALL-RGL-PMT-URS-00000-00002-00, Rev. F Skinner Ridge Storm -Water Management Plan Chevron North American Exploration and Production Company 23 Piceance Basin Natural Gas Development Program 7.1.18. Sediment Traps Sediment traps are intended to intercept, trap, and retain sediment from runoff while allowing detained runoff to slowly drain, infiltrate, or both. They are usually installed in a drainage way or other point of discharge from a disturbed area. This BMP is formed by excavating below grade and/or constructing an earthen embankment with a protected spillway to slow the release of runoff. 7.1.19. Silt Fence Silt fences are used as temporary perimeter control structures that are designed to slow, temporary impound, and filter sediment laden water. Installation techniques and maintenance is critical to proper performance. 7.1.20. Slope Drains Slope drains are used with earth dikes and drainage ditches to intercept and direct surface flow away from sloped areas to protect cut or fill slopes. A slope drain is applicable for any construction site where concentrated surface runoff can accumulate and must be conveyed down a slope in order to prevent erosion. The slope drain may be a rigid pipe such as corrugated metal, flexible conduit or a lined terrace drain with the inlet placed at the top of the slope and the outlet at the bottom of the slope. Inlets must be securely anchored and outlets must be stabilized with riprap. 7.1.21. Stabilized Construction Entrance A stabilized construction entrance is a pad of gravel laid over filter cloth where construction traffic will be entering or leaving a construction site to or from a public right-of-way, street or highway. This is also referred to as vehicle tracking control. The purpose of a stabilized entrance to a site is to minimize the amount of tracked mud and dust that leaves the site and is carried onto county roads or state highways. As a vehicle drives over the gravel, mud and sediment are removed from the vehicle's wheels and undercarriages reducing off-site soil transport. This BMP reduces erosion and prevents tire rutting, as the filter fabric separates the gravel from the soil below and minimizes the migration of gravel into subsurface soil due to heavy vehicle loads. A stabilized construction entrance should be used at all major facility ingress and egress locations. 7.1.22. Straw Bale Barriers A straw bale barrier is a series of entrenched and staked straw bales placed on a level contour to intercept sheet flows. The barrier reduces runoff velocity and filters sediment laden runoff from the drainage of small areas of disturbed soil. This BMP may also be used to protect against erosion in small shallow drainage channels. 7.1.23. Erosion/Sediment Control Log/Wattles Erosion/sediment control log/wattles or rolls are intended to capture and keep sediment on slopes or in small shallow drainage channels. Straw rolls can be used to temporarily stabilize slopes by reducing soil creep, sheet and rill erosion until permanent vegetation can be established. Straw rolls will last an average of one to two years. Doc. No.: PBSR-ALL-RGL-PMT-URS-00000-00002-00, Rev. F Skinner Ridge Storm -Water Management Plan Chevron North American Exploration and Production Company 24 Piceance Basin Natural Gas Development Program 7.1.24. Surface Roughening Soil surface roughening is a temporary erosion control practice often used in conjunction with grading. Soil roughening involves increasing the relief of a bare soil surface with horizontal grooves (corrugating) or tracks (tracking) using construction equipment. Slopes that are not fine graded and that are left in a roughened condition can reduce erosion, trap sediment, and prepare ground surfaces for seeding. 7.1.25. Terracing Terraces are made of either earthen embankments or ridge and channel systems that are properly spaced along a fill slope. Terraces are constructed with an adequate grade to promote drainage to a stabilized outlet. They reduce damage from erosion by collecting and redistributing surface runoff to stable outlets at slower speeds and by decreasing the distance of overland runoff flow. They also surpass smooth slopes in holding moisture and help to minimize sediment loading of surface runoff. 7.1.26. Vegetative and Grass Buffer Vegetative and grass buffers are areas of either natural or established vegetation that are maintained to protect the water quality of neighboring areas. Vegetive and grass buffers reduce stormwater runoff velocity, prevent soil erosion, promote infiltration and act as a filter to remove sediment. 7.1.27. Waterbars A waterbar is an earthen ridge, or ridge and channel, constructed diagonally across a slope road, trail, or disturbed area. Waterbars are normally used for drainage and erosion protection of closed, blocked, or infrequently used roads to divert stormwater runoff and minimize erosion. 7.1.28. Diversion Ditch/Berms A diversion ditch/berm is a small, temporary earthen channel or berm used to divert and convey runoff, usually to a sediment basin, trap, or pond. Depending on slope and anticipated flows, the diversion ditch may need to be lined with erosion control blankets/mats, check dams, or plastic (temporarily). 7.1.29. Slope Stabilization Slope stabilization generally pertains to structures or other BMPs that stabilize slopes that cannot be stabilized with vegetation. These structures and BMPs may include gabions and retaining walls. Some of these structures and BMPs are also used to stabilize stream banks. Gabions are rectangular wire -mesh cages that are filled with rock and wired together to form a protective but permeable structure for slope stabilization and erosion control. Gabions can be used as retaining walls to mechanically stabilize steep slopes, or for revetments, weirs, channel linings, culvert headwalls, and culvert outlet aprons. They are particularly useful where seepage is anticipated. Doc. No.: PBSR-ALL-RGL-PMT-URS-00000-00002-00, Rev. F Skinner Ridge Storm -Water Management Plan Chevron North American Exploration and Production Company 25 Piceance Basin Natural Gas Development Program 7.1.30. Concrete Washout Facilities Concrete washout facilities are used to prevent or reduce the discharge of pollutants to stormwater from concrete waste by conducting washout offsite, performing onsite washout in a designated area, and training employee and subcontractors. 7.1.31. Sanitary/Septic (Port -O -Let) Waste Management Proper sanitary and septic waste management prevent the discharge of pollutants to stormwater from sanitary and septic waste by providing convenient, well-maintained facilities, and arranging for regular service and disposal. Temporary sanitary facilities should be located away from drainage facilities, watercourses, and from traffic circulation. Temporary sanitary facilities should be secured to prevent overturning due to high winds or risk of high winds. Only reputable, licensed sanitary and septic waste haulers should be used. Untreated raw wastewater should never be discharged or buried. Regular waste collection by a licensed hauler should be arranged before facilities overflow. 7.1.32. Inlet Protection Inlet protection is a sediment control barrier formed around a storm drain inlet. A number of alternative inlet protection designs are available, including silt fences, straw bale barriers, block and gravel bags, and curb socks and sandbags. 7.2. Sources of Additional BMPs The structural and non-structural BMPs listed above are intended to include BMPs that may be used for gas gathering projects. However, there may be situations where a BMP is needed but not included above or project personnel may need additional information on the use, specification, and maintenance of BMPs. Additional information resources are listed below: • For oil and gas operations, the Bureau of Land Management and U.S. Forest Service have developed "Surface Operating Standards and Guidelines for Oil and Gas Exploration and Development," "Gold Book." The most recent version (fourth edition) of this is available on the internet at http://www.blm.gov/bmp/GoldBook_Draft_v12.pdf. • For construction BMPs the Urban Drainage and Flood Control District, a Colorado front range group of city and county agencies has developed a BMP manual that is available on the internet at http://www.ttdfcd.orglusdcm/vol3.htm • For construction BMPs and surface stabilization methods, the Alabama Soil and Water Conservation Committee has developed "Erosion Control, Sediment Control and Stormwater Management on Construction Sites and Urban Areas, Volume 1 Developing Plans and Designing Best Management Practices." This information is available on the internet at http://swcc.state.al.us/pdf/ASWCC June_2003_Alabama_Handbook Construction_E&S Control.pdf • For access roads, the US Forest Service and Bureau of Land Management have developed "Low -Volume Roads Engineering, Best Management Practices Field Guide," which is available on the internet at http://www.blm.gov/bmp/field%20guide.htm Doc, No,: PBSR-ALL-RGL-PMT-URS-00000.00002.00, Rev. F Skinner Ridge Storm -Water Management Plan Chevron North American Exploration and Production Company 26 Piceance Basin Natural Gas Development Program 7.3. Management of Storm -Water Controls Structural BMPs will be installed, inspected, and maintained as needed. Detailed descriptions of typical BMPs that may be used on individual construction sites are provided in the Typical Storm -Water BMP Details attachment. This SWMP will be revised as needed to address new disturbances. Depending on the type and location of new facilities there may be a need for inclusion of new and different BMPs. In general, new development should be planned with consideration for storm -water quality (e.g. minimize disturbed area and maximize distance from surface water drainages, as practicable). Other developments on the property, primarily existing and/or improved roads, not currently or specifically addressed in the SWMP, will be periodically inspected for the evidence of erosion and drainage problems. This is especially important for access roads located within 100 feet of surface drainages or creeks. If problems are noted, they should be reported to the Operations Supervisor and/or Chevron SWMP Administrator. Problem areas may be addressed through construction activities, but will likely need to be addressed through the application of BMPs that will be added to the plan as needed. 7.4. Other Controls Well pad construction and drilling will generate various other wastes during the course of construction. Other wastes may include the following: • Sagebrush, shrubs and trees from clearing operations; • Trash and debris from construction materials and workers; • Drill cuttings, drilling fluids, frac sand, completion fluids; and • Sanitary sewage. Each of these wastes will be managed so as to not contribute to storm -water pollution. Construction trash and debris will be collected in containers and hauled off-site for disposal in suitable landfills. Sanitary waste will be containerized in portable toilets or other storage tanks with waste materials regularly pumped and transported off-site for disposal at approved facilities. 7.4.1. Fuels and Materials Management Petroleum products which may be present at the construction site include: gasoline, diesel fuel, lubricant oils, hydraulic oils, used oils, and solvents. Gasoline, diesel fuel, lubricant, hydraulic, and miscellaneous oils and solvents will be stored in portable storage tanks with secondary containment. Pollutants from petroleum products used during construction activities adhere easily to soil particles and other surfaces. hi case of a spill or leak, soils contaminated with petroleum products will be containerized and transported to a proper treatment or disposal site. Proposed soil erosion and sediment control practices will aid in retention of spills or leaks. Use of secondary containment and drip pans will reduce the likelihood of spills or leaks contacting the ground. Proposed maintenance and safe storage practices will reduce the chance of petroleum products contaminating the site. Oily wastes such as crankcase oil, cans, rags, and paper containing oils will be placed in proper receptacles and disposed of or recycled. An additional source of petroleum contamination is leaks from equipment and vehicles. The Piceance Basin Field SPCC plan and/or Emergency Response Plan will be activated as appropriate to manage any petroleum product spills. Doc. No.: PBSR-ALL-RGL-PMT-URS-00000-00002-06, Rev. F Skinner Ridge Storm -Water Management Plan Chevron North American Exploration and Production Company 27 Piceance Basin Natural Gas Development Program The following guidelines for storing and managing petroleum products will be used: • All product containers will be clearly labeled. • Drums will be kept off the ground within secondary containment and stored under cover if needed. • Fuel tanks will be stored within secondary containment. • Lids of drummed materials will be securely fastened. • Emergency spill response procedures will be available onsite. • Spill clean up and containment materials (absorbent, shovels, etc.) will be easily accessible. Spills will be immediately cleaned up and contaminated materials will be properly stored onsite until they can be disposed of in accordance with applicable regulations. • Storage areas and containers will be regularly monitored for leaks and repaired or replaced as necessary. Contractors and subcontractors should be reminded about proper storage, handling and transferring of petroleum products or other hazardous materials during safety meetings. All spills and releases of exploration and production waste or produced fluid exceeding 5 barrels (210 gallons) including those contained within unlined berms, shall be reported in writing on the COGCC Spill/Release Report Form 19 within 10 days of discovery. All spills/releases that exceed 20 barrels (840 gallons) of exploration and production liquids/waste shall be verbally reported to the COGCC at (303) 894-2100 within 24 hours of discovery. Spills or releases of any size that impact or threaten to impact any waters of the state, residence or occupied structure, livestock, or public byway, shall be verbally reported to the COGCC as soon as practical after discovery (COGCC Rule 906). if the spill may reach waters of the state (which includes surface water, ground water and dry gullies or storm sewers leading to surface water), it must also be reported immediately to the CDPHE at 1-877-518-5608 and the National Response Center at 1-800-424-8802. Spills or releases of more than 25 gallons of refined petroleum crude oil products such as gasoline, diesel fuel, oil, or derivatives of mineral, animal or vegetable oil shall be reported to the state of Colorado Division of Oil and Public Safety at (303) 318-8547 within 24 hours. A hazardous substance release in any amount which enters or threatens to enter waters of the state shall be reported to CDPHE and the National Response Center at 1-800-424-8802. 7.4.2. Other Chemicals Products Management Additional materials will be used and stored onsite for use in construction. These materials will be stored appropriately and managed to minimize spills and leaks. Storage areas will be regularly inspected and any minor spills or leaks will be cleaned up immediately. 7.4.3. Materials Management The construction contractor will maintain a laydown or staging area for equipment and materials storage onsite. These areas will be maintained with good housekeeping and will be inspected on a regular basis for spills, leaks, and potential of materials commingling with storm -water runoff. Doc. No.: PBSR-ALL-RGL-PMT-URS-00000-00002-00, Rev. F Skinner Ridge Storm -Water Management Plan Chevron North American Exploration and Production Company 28 Piceance Basin Natural Gas Development Program 7.5. Construction Site Housekeeping Housekeeping will consist of neat and orderly storage of materials and containerized fluids. Wastes will be temporarily stored in containers and regularly collected and recycled, treated, or disposed of at approved off-site facilities. If spills occur prompt cleanup is required to minimize any commingling of waste materials with storm -water runoff. Routine equipment maintenance will be limited to fueling and lubrication. Drip pans and/or adsorbent tnaterial will be used during routine fueling and lubrication activities to contain spills or leaks. Any waste product from maintenance will be containerized and transported off-site for treatment, disposal, or recycling. All attempts will be made to minimize major equipment overhauls conducted onsite. Equipment will be transported off-site for major overhauls if required. Cleanup of trash and discarded materials will be conducted during the course of each work day. Cleanup will consist of patrolling the roadways, access areas, and other work areas to pickup trash, scrap debris, other discarded materials, and any contaminated soil. These materials will be recycled, treated, or disposed of appropriately. Doc. No.: PBSR-ALL-RGL-PMT-URS-00000.00002-00, Rev. F Skinner Ridge Storm -Water Management Plan Chevron North American Exploration and Production Company 29 Piceance Basin Natural Gas Development Program 8.0 INSPECTION AND MAINTENANCE PROCEDURES To meet requirements of the General Permit inspection and maintenance of erosion and sediment control BMPs must occur during the project. Continued inspection and maintenance is required for specific structures after construction is completed. The inspection program will include the following: 1. A trained and qualified person familiar with the SWMP and storm -water control BMPs will conduct facility inspections and complete the Storm -Water Field Inspection Report form provided as an attachment. 2. Inspections will cover these areas: • Evidence of surface erosion for disturbed areas; • Material and chemical storage areas; • Best Management Practices (BM Ps); • Surface water diversions and down gradient areas; • New access roads and ditches; and • Locations where vehicles enter or exit the site. 3. Inspections will occur either every 14 or 30 calendar days in accordance with State requirements and within 24 hours after a significant precipitation or snow melt events that causes runoff during periods of active construction. If no construction activities occurs following a storm event, post -storm event inspections shall be conducted prior to re -commencing construction activities but no later than 72 hours following the storm event; depending on safety concerns. 4. Permanently stabilized areas will be periodically inspected to monitor ongoing conditions. 5. A log of inspections will be completed and maintained for a minimum of three years. A copy of the SWMP will be kept at the Hiner Gate Field Office. 6. Inspections are not required for disturbed areas when snow cover exists over the entire site for an extended period as long as melting conditions that create runoff do not exist. 7. Water quality will be visually assessed for all receiving streams and discharge areas during each inspection if present. 8. Disturbed areas and material storage areas that are exposed to precipitation will be inspected for evidence of pollutants entering nearby drainages. 9. Check dams, wattles/logs, and other BMPs will be inspected for evidence of deterioration, under -cutting, and build up of sediment. Sediment will be removed when it has built up one-third to one-half the height of the hay bales or wattles/logs. 10. Roads used for vehicle access will be inspected for evidence of off-site sediment transport. 11. The SWMP will be modified as necessary whenever there is a change in design, construction or operation that changes the potential for pollutant discharge to waters of the state. Doc. No.: PBSR-ALL-RGL-PMT-URS-00000-00002-00, Rev. F Skinner Ridge Storm -Water Management Plan Chevron North American Exploration and Production Company 30 Piceance Basin Natural Gas Development Program 12. An inspection report summarizing the scope of the inspection, the name of the person conducting the inspection, date of inspection, and observations relating to the implementation will be completed for each inspection conducted. An example inspection report is provided in Appendix D. 13. Actions taken to modify storm -water control measures will be recorded with inspection reports and maps, and maintained with the SWMP. Personnel performing facility inspections of access roads, well pads or other operational facilities will record site conditions on the Storm -Water Inspection Report form (see attachment). When deficiencies are discovered, the Chevron local contact will be immediately informed of the circumstances and this individual will direct designated subcontractors to perform BMP maintenance or replacement. Maintenance will include prompt adjustments and repairs to erosion and sediment control structures and BMPs that are found to be performing inadequately or deteriorating. The Chevron local contact has the authority and will coordinate subcontractors to install new and or additional storm -water control BMPs as needed. Doc. No.: PBSR-ALL•RGL-PMT-URS-00000-00002-00, Rev. F Skinner Ridge Storm -Water Management Plan Chevron North American Exploration and Production Company 31 Piceance Basin Natural Gas Development Program 9.0 NON -STORM -WATER DISCHARGES The extraction of natural gas can produce large quantities of water that are trapped in the formation along with the gas. The produced water requires both a short-term and long-term management strategy. Chevron's short-term strategy is to treat the produced water for reuse in drilling and well completion operations. Longer-term produced water handling options are currently under evaluation by Chevron. Performance of the produced water treatment system and separate produced water injection well tests will assist Chevron in the decision-making process whether to treat all of the produced water in excess of drilling and well completion needs for beneficial reuse or to inject the excess produced water. Risks associated with accidental releases of produced water to surface and groundwater can be minimized by use of water management methods that do not include surface storage. In addition, topography in Clear Creek Valley limits the location of surface ponds to only a few relatively level areas that include portions of the most productive agricultural land in the valley. Long-term produced water management strategies may include avoiding, as much as practical, the need for surface ponds. Doc. No.: PBSR-ALL-RGL-PMT-URS-00000-00002-D0, Rev. F Skinner Ridge Storm -Water Management Plan Chevron North American Exploration and Production Company 32 Piceancc Basin Natural Gas Development Program 10.0 FINAL STABILIZATION Areas which have been disturbed are considered to be stabilized when a uniform vegetative cover with a density of 70 percent of the pre -disturbance levels has been established or when an equivalent permanent, physical erosion reduction method is in-place. The disturbed areas will be seeded and mulched for final stabilization. The URS Specification for the Re -vegetation of Disturbed Areas (see attachment) details approved seed mixtures and application rates for the Program area. Typical Pure Live Seed application rates are recommended to be doubled if seeding is performed by hydroseeding or broadcasting. Areas not used for facilities, access roads, materials storage yards, or other work areas will be stabilized with vegetation. Areas that are stabilized with vegetation will be considered to have achieved final stabilization when a uniform stand of vegetation with a density of at least 70 -percent of the pre -disturbance has been established. Sprayed on mulches and other slope stabilization materials may be used in combination with seeding techniques in select areas to promote and establish surface vegetation cover. Other areas which may include facilities, access roads, materials storage yards, and other work areas will be stabilized with the use of permanent, physical erosion reduction methods which include, but are not limited to: 1. Surface hardening — covering of the soil surface with hardened products such as concrete or asphalt pavement. 2. Surface covering — covering of the surface soil with structures that inhibits contact of precipitation with the soil surface, which is generally considered to be the placement of a structure (building or tank) over the soil surface. 3. Gravel surfacing — gravel surfacing will be applied in areas such as access roads, materials storage yards, and other work area surfaces. Some gravel may be lost due to erosion from intense precipitation events or due to vehicle traffic. Gravel surfaces will be periodically inspected to determine the need for gravel replacement. Gravel surfaces will be replaced or repaired (through grading) when inspection reveals that the gravel surface is no longer effectively covering the soil surface. Doc. No.: PBSR-ALL-RGL-PMT-URS-00000-00002-00, Rev. F Skinner Ridge Storm -Water Management Plan Chevron North American Exploration and Production Company 33 Piceance Basin Natural Gas Development Program 11.0 OWNER/APPLICANT CERTIFICATION I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, that the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations. Signature: Name: Title: Date: Owner Name: Owner Address: Michael DeBerry Piceance Basin Operations Manager Chevron U.S.A Inc. 760 Horizon Drive Grand Junction, CO 81506 Site Name and Location: SWMP Prepared by: SWMP Updated by: Skinner Ridge Field Piceance Basin Field Operations Townships 5, 6, 7, 8 and 9 South Ranges 97 and 98 West Garfield County, Colorado Cordilleran Compliance Services, Inc. 826 21 '/z Road Grand Junction, CO 81505 Washington Group International / URS Washington Division 7800 E. Union Ave., Suite 100 Denver, CO 80237 Doc. No.: PBSR-ALL-RGL-PMT-URS-00000-00002-00, Rev. F Skinner Ridge Storm -Water Management Plan Chevron North American Exploration and Production Company 34 Piceance Basin Natural Gas Development Program STATE OF COLORADO Bill Ritter, Jr., Governor James B. Martin, Executive Director Dedicated to protecting and improving the health and environment of the people of Colorado 4300 Cherry Creek Dr. S. Denver, Colorado 80246-1530 Phone (303) 692-2000 TDD Line (303) 691-7700 Located in Glendale, Colorado http-lwww.cdphe.state.co.us June 20, 2007 Laboratory Services Division 8100 Lowry Blvd. Denver, Colorado 80230-6928 (303) 692-3090 Michael De Berry, Piceance Ops Mgr Chevron USA Inc, Hector E. Cavazos 11111 S. Wilcrest P.O. Box 36366 Houston, TX 77099 970/257-6005 RE: Final Permit, Colorado Discharge Permit System -- Stormwater Certification No: COR -037787 Skinner Ridge Natural Gas Wells Garfield County Local Contact: George Badovinatz, Ops Super 970/257-6002 Dear Sir or Madam: Colorado Department of Public Health and Environment Enclosed please find a copy of the new permit and certification which have been re -issued to you under the Colorado Water Quality Control Act. Your old permit expires on June 30, 2007. This is a renewal to the permit, and replaces the old one. See page 2 of the Rationale (the pages in italics) for a summary of the changes to the permit. Your Certification under the permit requires that specific actions be performed at designated times. You are legally obligated to comply with all terms and conditions of the permit. Please read the permit and certification. If you have any questions please visit our website at : www.cdphe.state.co.us/wq/permitsunit/stormwater or contact Matt Czahor at (303) 692-3517. Sincerely, Kathryn Dolan Stormwater Program Coordinator Permits Unit WATER QUALITY CONTROL DIVISION xc: Regional Council of Governments Local County Health Department District Engineer, Technical Services, WQCD Permit File STATE OF COLOFADO COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT WATER QUALITY CONTROL DIVISION TELEPHONE: (303) 692-3500 CERTIFICATION TO DISCHARGE UNDER CDPS GENERAL PERMIT COR -030000 STORMWATER DISCHARGES ASSOCIATED WITH CONSTRUCTION Certification Number COR037787 This Certification to Discharge specifically authorizes: Chevron USA Inc LEGAL CONTACT: Michael De Berry, Piceance Ops Mgr Chevron USA Inc 11111 S. Wilcrest P.O. Box 36366 Houston, TX 77099 Phone # 970/257-6005 LOCAL CONTACT: George Badovinatz, Ops Super, Phone # 970/257-6002 During the Construction Activity: Gas/Oil Field Exploration and/or Development to discharge stormwater from the facility identified as Skinner Ridge Natural Gas Wells which is located at: Tom Creek in Skinner Ridge area. Garfield County, Co Latitude 39.5877, Longitude 108.3418 In Garfield County to: -- Tom Creek Anticipated Activity begins 02/07/2005 continuing through 06/07/2006 On 3.4 acres (18.0 acres disturbed) Certification is effective: 07/01/2007 Certification Expires: 06/30/2012 Annual Fee: $245.00 (DO NOT PAY NOW — A prorated bill will be sent shortly.) Page 1 of 22 Page 2 of 22 Permit No. COR -030000 CDPS GENERAL PERMIT STORMWATER DISCHARGES ASSOCIATED WITH CONSTRUCTION ACTIVITY AUTHORIZATION TO DISCHARGE UNDER THE COLORADO DISCHARGE PERMIT SYSTEM In compliance with the provisions of the Colorado Water Quality Control Act, (25-8-101 et seq., CRS, 1973 as amended) and the Federal Water Pollution Control Act, as amended (33 U.S.C. 1251 et seq.; the "Act"), this permit authorizes the discharge of stormwater associated with construction activities (and specific allowable non-stormwater discharges in accordance with Part I.D.3 of the permit) certified under this permit, from those locations specified throughout the State of Colorado to specified waters of the State. Such discharges shall be in accordance with the conditions of this permit. This permit specifically authorizes the facility listed on page 1 of this permit to discharge, as of this date, in accordance with permit requirements and conditions set forth in Parts I and II hereof. All discharges authorized herein shall be consistent with the terms and conditions of this permit. This permit and the authorization to discharge shall expire at midnight, June 30, 2012. Issued and Signed this 315` day of May, 2007 COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT Janet S. Kieler Permits Section Manager Water Quality Control Division SIGNED AND ISSUED MAY 31, 2007 EFFECTIVE JULY 1, 2007 TABLE OF CONTENTS PART I A. COVERAGE UNDER THIS PERMIT 3 1. Authority to Discharge 3 a) Applicable Sections 3 b) Oil and Gas Construction 3 2. Definitions 3 3. Permit Coverage Without Application — Qualifying Local Programs 3 a) Applicable Sections 3 b) Local Agency Authority 4 c) Permit Coverage Termination 4 d) Compliance with Qualifying Local Program 4 e) Full Permit Applicability 4 4. Application, Due Dates 4 a) Application Due Dates 4 b) Summary of Application 4 5. Permit Certification Procedures 4 a) Request for Additional Information 4 b) Automatic Coverage 5 c) Individual Permit Required 5 d) General vs. Individual Permit Coverage 5 e) Local Agency Authority 5 6. Inactivation Notice 5 7. Transfer of Permit 5 8. Reassignment of Permit 5 9. Sale of Residence to Homeowners 6 10. Permit Expiration Date 6 11. Individual Permit Criteria 6 B. STORMWATER MANAGEMENT PLAN — GENERAL REQUIREMENTS 6 C. STORMWATER MANAGEMENT PLAN — CONTENTS 7 1. Site Description 7 2. Site Map 7 3. Stormwater Management Controls 8 a) SWMP Administrator 8 b) Identification of Potential Pollutant Sources 8 c) Best Management Practices (BMPs) for Stormwater Pollution Prevention 8 4. Final Stabilization and Long-term Stormwater Management 9 5. Inspection and Maintenance 10 D. TERMS AND CONDITIONS 10 1. General Limitations 10 2. BMP Implementation and Design Standards 10 3. Prohibition of Non-Stormwater Discharges 11 4. Releases in Excess of Reportable Quantities 1 I 5. SWMP Requirements 11 a) SWMP Preparation and Implementation 11 b) SWMP Retention Requirements .. 11 c) SWMP Review/Changes 11 d) Responsive SWMP Changes 12 6. Inspections 12 a) Minimum Inspection Schedule 12 b) Inspection Requirements l3 c) Required Actions Following Site Inspections 13 7. BMP Maintenance I3 8. Replacement and Failed BMPs 14 9. Reporting 14 -2a - TABLE OF CONTENTS (cont.) 10. SWMP Availability 14 11. Total Maximum Daily Load (TMDL) 14 E. ADDITIONAL DEFINITIONS 15 F. GENERAL REQUIREMENTS 16 1. Signatory Requirements 16 2. Retention of Records 16 3. Monitoring 16 PART II A. MANAGEMENT REQUIREMENTS 17 1. Amending a Permit Certification 17 2. Special Notifications - Definitions 17 3. Noncompliance Notification 17 4. Submission of Incorrect or Incomplete Information 18 5. Bypass 18 6. Upsets 18 7. Removed Substances 18 8. Minimization of Adverse Impact 18 9. Reduction, Loss, or Failure of Stormwater Controls 19 10. Proper Operation and Maintenance 19 B. RESPONSIBILITIES 19 1. Inspections and Right to Entry 19 2. Duty to Provide Information 19 3. Transfer of Ownership or Control 19 4. Modification, Suspension, or Revocation of Permit By Division 20 5. Permit Violations 21 6. Legal Responsibilities 21 7. Severability 21 8. Renewal Application 23 9. Confidentiality 21 10. Fees 21 11. Requiring an Individual CDPS Permit 22 -2b- PART I A. COVERAGE UNDER THIS PERMIT 1. Authority to Discharge PART I Permit - Page 3 Permit No. COR -030000 Under this permit, facilities are granted authorization to discharge stormwater associated with construction activities into waters of the state of Colorado. This permit also authorizes the discharge of specific allowable non-stormwater discharges, in accordance with Part I.D.3 of the permit, which includes discharges to the ground. This includes stormwater discharges from areas that are dedicated to producing earthen materials, such as soils, sand and gravel, for use at a single construction site (i.e., borrow or fill areas). This permit also authorizes stormwater discharges from dedicated asphalt batch plants and dedicated concrete batch plants. (Coverage under the construction site permit is not required for batch plants if they have alternate CDPS permit coverage.) This permit does not authorize the discharge of mine water or process water from such areas. a) Applicable Sections: In accordance with Part LA.3 of this permit, some parts of this permit do not apply to sites covered under a Qualifying Local Program, as defined in LA.2.d. For sites not covered by a Qualifying Local Program, all parts of the permit apply except Part I.A.3. The permittee will be responsible for determining and then complying with the applicable sections. b) Oil and Gas Construction: Stormwater discharges associated with construction activities directly related to oil and gas exploration, production, processing, and treatment operations or transmission facilities are regulated under the Colorado Discharge Permit System Regulations (5CCR 1002-61), and require coverage under this permit in accordance with that regulation. However, references in this permit to specific authority under the Federal Clean Water Act (CWA) do not apply to stormwater discharges associated with these oil and gas related construction activities, to the extent that the references are limited by the federal Energy Policy Act of 2005. 2. Definitions a) Stormwater: Stormwater is precipitation -induced surface runoff. b) Construction activity: Construction activity refers to ground surface disturbing activities, which include, but are not limited to, clearing, grading, excavation, demolition, installation of new or improved haul roads and access roads, staging areas, stockpiling of fill materials, and borrow areas. Construction does not include routine maintenance to maintain original line and grade, hydraulic capacity, or original purpose of the facility. c) Small construction activity: Stormwater discharge associated with small construction activity means the discharge of stormwater from construction activities that result in land disturbance of equal to or greater than one acre and less than five acres. Small construction activity also includes the disturbance of less than one acre of total land area that is part of a larger common plan of development or sale, if the larger common plan will ultimately disturb equal to or greater than one and less than five acres. d) Qualifying Local Program: This permit includes conditions that incorporate qualifying local erosion and sediment control program (Qualifying Local Program) requirements by reference. A Qualifying Local Program is a municipal stormwater program for stormwater discharges associated with small construction activity that has been formally approved by the Division. Other Definitions: Definitions of additional terms can be found in Part I.E. of this permit. 3. Permit Coverage Without Application — for small construction activities under a Qualifying Local Program o_ my If a small construction site is within the jurisdiction of a Qualifying Local Program, the operator of the construction activity is authorized to discharge stormwater associated with small construction activity under this general permit without the submittal of an application to the Division. a) Applicable Sections: For sites covered by a Qualifying Local Program, only Parts 1.A.1, 1.A.2, 1.A.3, I.D.1, I.D.2, I.D.3, I.D.4,1.D.7, I.D.8, I.D.1 1, I.E and Part II of this permit, with the exception of Parts II.A.1, II.B.3, II.B.S, and II.B10, apply. PART I Permit - Page 4 Permit No. COR -030000 A. COVERAGE UNDER THIS PERMIT (cont.) b) Local Agency Authority: This permit does not pre-empt or supersede the authority of local agencies to prohibit, restrict, or control discharges of stormwater to storm drain systems or other water courses within their jurisdiction. c) Permit Coverage Termination: When a site under a Qualifying Local Program has been finally stabilized, coverage under this permit is automatically terminated. d) Compliance with Qualifying Local Program: A construction site operator that has authorization to discharge under this permit under Part 1.A.3 shall comply with the requirements of the Qualifying Local Program with jurisdiction over the site. e) Full Permit Applicability: The Division may require any operator within the jurisdiction of a Qualifying Local Program covered under this permit to apply for and obtain coverage under the full requirements of this permit. The operator must be notified in writing that an application for full coverage is required. When a permit certification under this permit is issued to an operator that would otherwise be covered under Part I.A.3 of this permit, the full requirements of this permit replace the requirements as per Part IA.3 of this permit, upon the effective date of the permit certification. A site brought under the full requirements of this permit must still comply with local stormwater management requirements, policies or guidelines as required by Part 1.D.1.g of this permit. 4. Application, Due Dates a) Application Due Dates: At least ten calendar days prior to the commencement of construction activities, the applicant shall submit an application form as provided by the Division, with a certification that the Stormwater Management Plan (SWMP) is complete. One original completed discharge permit application shall be submitted, by mail or hand delivery, to: Colorado Department of Public Health and Environment Water Quality Control Division WQCD-Permits-B2 4300 Cherry Creek Drive South Denver, Colorado 80246-1530 b) Summary of Application: The application requires, at a minimum, the following: 1) The applicant's company name; address; telephone number; and email address (if available); whether the applicant is the owner, developer, or contractor; and local contact information; 2) Project name, address, county and location of the construction site, including the latitude and longitude to the nearest 15 seconds of the approximate center of the construction activity; 3) Legal description or map of the construction site; 4) Estimates of: the total area of the site, the area of the site that is expected to be disturbed, and the total area of the larger common plan of development or sale to undergo disturbance; 5) The nature of the construction activity; 6) The anticipated start date and final stabilization date for the project; 7) The name of the receiving water(s), or the municipal separate storm sewer system and the ultimate (i.e., named) receiving water(s); 8) Certification that the SWMP for the construction site is complete (see Part LC. below); and 9) The signature of the applicant, signed in accordance with Part 1.F.1 of this permit. 5. Permit Certification Procedures If this general permit is appropriate for the applicant's operation, then a certification will be developed and the applicant will be authorized to discharge stormwater under this general permit. a) Request for Additional Information: The Division shall have up to ten calendar days after receipt of the above information to request additional data and/or deny the authorization for any particular discharge. Upon receipt of additional information, the Division shall have an additional ten calendar days to issue or deny authorization for the particular discharge. (Notification of denial shall be by ]otter, in cases where coverage under an alternate general permit or an individual permit is required, instead of coverage under this permit.) PART 1 Permit - Page 5 Permit No. COR -030000 A. COVERAGE UNDER THIS PERMIT (cont.) b) Automatic Coverage: If the applicant does not receive a request for additional information or a notification of denial from the Division dated within ten calendar days of receipt of the application by the Division, authorization to discharge in accordance with the conditions of this permit shall be deemed granted. c) Individual Permit Required: If, after evaluation of the application (or additional information, such as the SWMP), it is found that this general permit is not appropriate for the operation, then the application will be processed as one for an individual permit. The applicant will be notified of the Division's decision to deny certification under this general permit. For an individual permit, additional information may be requested, and 180 days may be required to process the application and issue the permit. At the Division's discretion, temporary coverage under this general permit may be allowed until the individual permit goes into effect. d) General vs. Individual Permit Coverage: Any permittee authorized by this permit may request to be excluded from the coverage of this permit by applying for an individual COPS permit. The permittee shall submit an individual application, with reasons supporting the request, to the Division at least 180 days prior to any discharge. e) Local Agency Authority: This permit does not pre-empt or supersede the authority of local agencies to prohibit, restrict, or control discharges of stormwater to storm drain systems or other water courses within their jurisdiction. 6. Inactivation Notice When a site has been fmally stabilized in accordance with the SWMP, the permittee must submit an Inactivation Notice form that is signed in accordance with Part I.F.I. of this permit. The Inactivation Notice form is available from the Division and includes: a) Permit certification number; b) The permittee's name, address, telephone number; c) Name, location, and county for the construction site for which the inactivation notice is being submitted; and d) Certification that the site has been finally stabilized, and a description of the fmal stabilization method(s). 7. Transfer of Permit When responsibility for stormwater discharges at a construction site changes from one entity to another, the permittee shall submit a completed Notice of Transfer and Acceptance of Terms form that is signed in accordance with Part I.F.I. of this permit. The Notice of Transfer form is available from the Division and includes: a) Permit certification number; b) Name, location, and county for the construction site for which the Notice of Transfer is being submitted; c) Identifying information for the new permittee; d) Identifying information for the current permittee; and e) Effective date of transfer. If the new responsible party will not complete the transfer form, the permit may be inactivated upon written request to the Division and completion of the Inactivation Notice if the permittee has no legal responsibility, through ownership or contract, for the construction activities at the site. In this case, the new owner or operator would be required to obtain permit coverage separately. 8. Reassignment of Permit When a permittee no longer has control of a specific portion of a permitted site, and wishes to transfer coverage of that portion of the site to a second party, the permittee shall submit a completed Notice of Reassignment of Permit Coverage form that is signed in accordance with Part I.F.1. of this permit. The Notice of Reassignment of Permit Coverage form is available from the Division and includes: a) Current permit certification number; b) Identifying information and certification as required by Part I.A.4.b for the new permittee; c) Identifying information for the current permittee, revised site information and certification for reassignment; and d) Effective date of reassignment. PART Permit - Page 6 Permit No. COR -030000 A. COVERAGE UNDER THIS PERMIT (cont.) If the new responsible party will not complete the reassignment form, the applicable portion of the permitted site may be removed from permit coverage upon written request to the Division if the permittee has no legal responsibility, through ownership or contract, for the construction activities at the portion of the site. In this case, the new owner or operator would be required to obtain permit coverage separately. 9. Sale of Residence to Homeowners For residential construction only, when a residential lot has been conveyed to a homeowner and all criteria in paragraphs a through e, below, are met, coverage under this permit is no longer required and the conveyed lot may be removed from coverage under the permittee's certification. At such time, the permittee is no longer responsible for meeting the terms and conditions of this permit for the conveyed lot, including the requirement to transfer or reassign permit coverage. The permittee remains responsible for inactivation of the original certification. a) The lot has been sold to the homeowner(s) for private residential use; b) the lot is less than one acre of disturbed area; c) all construction activity conducted by the permittee on the lot is completed; d) a certificate of occupancy (or equivalent) has been awarded to the home owner; and e) the SWMP has been amended to indicate the lot is no longer covered by permit. Lots not meeting all of the above criteria require continued permit coverage. However, this permit coverage may be transferred (Part I.A.7, above) or reassigned (Part I.A.8, above) to a new owner or operator. 10. Permit Expiration Date Authorization to discharge under this general permit shall expire on June 30, 2012. The Division must evaluate and reissue this general permit at least once every five years and must recertify the permittee's authority to discharge under the general permit at such time. Therefore, a permittee desiring continued coverage under the general permit must reapply by March 31, 2012. The Division will initiate the renewal process; however, it is ultimately the permittee's responsibility to ensure that the renewal is submitted. The Division will determine if the permittee may continue to operate under the terms of the general permit. An individual permit may be required for any facility not reauthorized to discharge under the reissued general permit. 11. Individual Permit Criteria Various criteria can be used in evaluating whether or not an individual (or alternate general) permit is required instead of this general permit. This information may come from the application, SWMP, or additional information as requested by the Division, and includes, but is not limited to, the following: a) the quality of the receiving waters (i.e., the presence of downstream drinking water intakes or a high quality fishery, or for preservation of high quality water); b) the size of the construction site; c) evidence of noncompliance under a previous permit for the operation; d) the use of chemicals within the stormwater system; or e) discharges of pollutants of concern to waters for which there is an established Total Maximum Daily Load (TMDL). In addition, an individual permit may be required when the Division has shown or has reason to suspect that the stormwater discharge may contribute to a violation of a water quality standard. . B. STORMWATER MANAGEMENT PLAN (SWMP) — GENERAL REQUIREMENTS 1. A SWMP shall be developed for each facility covered by this permit. The SWMP shall be prepared in accordance with good engineering, hydrologic and pollution control practices. (The SWMP need not be prepared by a registered engineer.) PART I Permit - Page 7 Permit No. COR -030000 B. STORMWATER MANAGEMENT PLAN (SWMP) — GENERAL REQUIREMENTS (cont.) 2. The SWMP shall: a) Identify all potential sources of pollution which may reasonably be expected to affect the quality of stormwater discharges associated with construction activity from the facility; b) Describe the practices to be used to reduce the pollutants in stormwater discharges associated with construction activity at the facility; and ensure the practices are selected and described in accordance with good engineering practices, including the installation, implementation and maintenance requirements; and c) Be properly prepared, and updated in accordance with Part I.D.5.c, to ensure compliance with the terms and conditions of this permit. 3. Facilities must implement the provisions of the SWMP as written and updated, from commencement of construction activity until fmal stabilization is complete, as a condition of this permit. The Division reserves the right to review the SWMP, and to require the permittee to develop and implement additional measures to prevent and control pollution as needed. 4. The SWMP may reflect requirements for Spill Prevention Control and Countermeasure (SPCC) plans under section 311 of the CWA, or Best Management Practices (BMPs) Programs otherwise required by a separate CDPS permit, and may incorporate any part of such plans into the SWMP by reference, provided that the relevant sections of such plans are available as part of the SWMP consistent with Part I.D.5.b. 5. For any sites with permit coverage before June 30, 2007, the permittee's SMWP must meet the new SWMP requirements as summarized in Section II.I of the rationale. Any needed changes must be made by October 1, 2007. C. STORMWATER MANAGEMENT PLAN (SWMP) — CONTENTS The SWMP shall include the following items, at a minimum. 1. Site Description. The SWMP shall clearly describe the construction activity, to include: . a) The nature of the construction activity at the site. b) The proposed sequence for major activities. c) Estimates of the total area of the site, and the area and location expected to be disturbed by clearing, excavation, grading, or other construction activities. d) A summary of any existing data used in the development of the site construction plans or SWMP that describe the soil or existing potential for soil erosion. e) A description of the existing vegetation at the site and an estimate of the percent vegetative ground cover. f) The location and description of all potential pollution sources, including ground surface disturbing activities (see Part 1.A.2.b), vehicle fueling, storage of fertilizers or chemicals, etc. g) The location and description of any anticipated allowable sources of non-stormwater discharge at the site, e.g., uncontaminated springs, landscape irrigation return flow, construction dewatering, and concrete washout. h) The name of the receiving water(s) and the size, type and location of any outfall(s). If the stormwater discharge is to a municipal separate storm sewer system, the name of that system, the location of the storm sewer discharge, and the ultimate receiving water(s). 2. Site Mao. The SWMP shall include a legible site map(s), showing the entire site, identifying: a) construction site boundaries; b) all areas of ground surface disturbance; c) areas of cut and fill; d) areas used for storage of building materials, equipment, soil, or waste; e) locations of dedicated asphalt or concrete batch plants; t) locations of all structural BMPs; g) locations of non-structural BMPs as applicable; and h) locations of springs, streams, wetlands and other surface waters. PART I Permit - Page 8 Permit No. COR -030000 C. STORMWATER MANAGEMENT PLAN (SWMP) — CONTENTS (cont) 3. Stormwater Management Controls. The SWMP must include a description of all stormwater management controls that will be implemented as part of the construction activity to control pollutants in stormwater discharges. The appropriateness and priorities of stormwater management controls in the SWMP shall reflect the potential pollutant sources identified at the facility. The description of stormwater management controls shall address the following components, at a minimum: a) SWMP Administrator - The SWMP shall identify a specific individual(s), position or title who is responsible for developing, implementing, maintaining, and revising the SWMP. The activities and responsibilities of the administrator shall address all aspects of the facility's SWMP. b) Identification of Potential Pollutant Sources - Alt potential pollutant sources, including materials and activities, at a site must be evaluated for the potential to contribute pollutants to stormwater discharges. The SWMP shall identify and describe those sources determined to have the potential to contribute pollutants to stormwater discharges, and the sources must be controlled through BMP selection and implementation, as required in paragraph (c), below. At a minimum, each of' the following sources and activities shall be evaluated for the potential to contribute pollutants to stormwater discharges, and identified in the SWMP if found to have such potential: 1) all disturbed and stored soils; 2) vehicle tracking of sediments; 3) management of contaminated soils; 4) loading and unloading operations; 5) outdoor storage activities (building materials, fertilizers, chemicals, etc.); 6) vehicle and equipment maintenance and fueling; 7) significant dust or particulate generating processes; 8) routine maintenance activities involving fertilizers, pesticides, detergents, fuels, solvents, oils, etc.; 9) on-site waste management practices (waste piles, liquid wastes, dumpsters, etc.); 10) concrete truck/equipment washing, including the concrete truck chute and associated fixtures and equipment; 11) dedicated asphalt and concrete batch plants; 12) non -industrial waste sources such as worker trash and portable toilets; and 13) other areas or procedures where potential spills can occur. c) Best Management Practices (BMPs) for Stormwater Pollution Prevention - The SWMP shall identify and describe appropriate BMPs, including, but not limited to, those required by paragraphs 1 through 8 below, that will be implemented at the facility to reduce the potential of the sources identified in Part I.C.3.b to contribute pollutants to stormwater discharges. The SWMP shall clearly describe the installation and implementation specifications for each BMP identified in the SWMP to ensure proper implementation, operation and maintenance of the BMP. 1) Structural Practices for Erosion and Sediment Control. The SWMP shall clearly describe and locate all structural practices implemented at the site to minimize erosion and sediment transport. Practices may include, but are not limited to: straw bales, wattles/sediment control logs, silt fences, earth dikes, drainage swales, sediment traps, subsurface drains, pipe slope drains, inlet protection, outlet protection, gabions, and temporary or permanent sediment basins. 2) Non -Structural Practices for Erosion and Sediment Control. The SWMP shall clearly describe and locate, as applicable, all non-structural practices implemented at the site to minimize erosion and sediment transport. Description must include interim and permanent stabilization practices, and site-specific scheduling for implementation of the practices. The SWMP should include practices to ensure that existing vegetation is preserved where possible. Non-structural practices may include, but are not limited to: temporary vegetation, permanent vegetation, mulching, geotextiles, sod stabilization, slope roughening, vegetative buffer strips, protection of trees, and preservation of mature vegetation. PART I Permit - Page 9 Permit No. COR -030000 C. STORMWATER MANAGEMENT PLAN (SWMP) — CONTENTS (cont.) 3) Phased BMP Implementation. The SWMP shall clearly describe the relationship between the phases of construction, and the implementation and maintenance of both structural and non-structural stormwater management controls. The SWMP must identify the stormwater management controls to be implemented during the project phases, which can include, but are not limited to, clearing and grubbing; road construction; utility and infrastructure installation; vertical construction; final grading; and final stabilization. 4) Materials Handling and Spill Prevention. The SWMP shall clearly describe and locate all practices implemented at the site to minimize impacts from procedures or significant materials (see definitions at Part I.E.) that could contribute pollutants to runoff. Such procedures or significant materials could include: exposed storage of building materials; paints and solvents; fertilizers or chemicals; waste material; and equipment maintenance or fueling procedures. Areas or procedures where potential spills can occur must have spill prevention and response procedures identified in the SWMP. 5) Dedicated Concrete or Asphalt Batch Plants. The SWMP shall clearly describe and locate all practices implemented at the site to control stormwater pollution from dedicated concrete batch plants or dedicated asphalt batch plants covered by this certification. 6) Vehicle Tracking Control. The SWMP shall clearly describe and locate all practices implemented at the site to control potential sediment discharges from vehicle tracking. Practices must be implemented for all areas of potential vehicle tracking, and can include: minimizing site access; street sweeping or scraping; tracking pads; graveled parking areas; requiring that vehicles stay on paved areas on-site; wash racks; contractor education; and/or sediment control BMPs, etc. 7) Waste Management and Disposal, Including Concrete Washout. i) The SWMP shall clearly describe and locate the practices implemented at the site to control stormwater pollution from all construction site wastes (liquid and solid), including concrete washout activities. II) The practices used for concrete washout must ensure that these activities do not result in the contribution of pollutants associated with the washing activity to stormwater runoff. iii) Part 1.D.3.c of the permit authorizes the conditional discharge of concrete washout water to the ground. The SWMP shall clearly describe and locate the practices to be used that will ensure that no washout water from concrete washout activities is discharged from the site as surface runoff or to surface waters. 8) Groundwater and Stormwater Dewatering. i) The SWMP shall clearly describe and locate the practices implemented at the site to control stormwater pollution from the dewatering of groundwater or stormwater from excavations, wells, etc. ii) Part I.D.3.d of the permit authorizes the conditional discharge of construction dewatering to the ground. For any construction dewatering of groundwater not authorized under a separate CDPS discharge permit, the SWMP shall clearly describe and locate the practices to be used that will ensure that no groundwater from construction dewatering is discharged from the site as surface runoff or to surface waters. 4. Final Stabilization and Long-term Stormwater Management a) The SWMP shall clearly describe the practices used to achieve final stabilization of all disturbed areas at the site, and any planned practices to control pollutants in stormwater discharges that will occur after construction operations have been completed at the site. b) Final stabilization practices for obtaining a vegetative cover should include, as appropriate: seed mix selection and application methods; soil preparation and amendments; soil stabilization practices (e.g., crimped straw, hydro mulch or rolled erosion control products); and appropriate sediment control BMPs as needed until final stabilization is achieved; etc. PART I Permit - Page 10 Permit No. COR -030000 C. STORMWATER MANAGEMENT PLAN (SWMP) — CONTENTS (cont.) c) Final stabilization is reached when all ground surface disturbing activities at the site have been completed, and uniform vegetative cover has been established with an individual plant density of at Ieast 70 percent of pre - disturbance levels, or equivalent permanent, physical erosion reduction methods have been employed. The Division may, after consultation with the permitter and upon good cause, amend the fatal stabilization criteria in this section for specific operations. 5. Inspection and Maintenance Part 1.D.6 of the permit includes requirements for site inspections. Part I.D.7 of the permit includes requirements for BMP maintenance. The SWMP shall clearly describe the inspection and maintenance procedures implemented at the site to maintain all erosion and sediment control practices and other protective practices identified in the SWMP, in good and effective operating condition. D. TERMS AND CONDITIONS 1. General Limitations The following limitations shall apply to all discharges covered by this permit: a) Stormwater discharges from construction activities shall not cause, have the reasonable potential to cause, or measurably contribute to an exceedance of any water quality standard, including narrative standards for water quality. b) Concrete washout water shall not be discharged to state surface waters or to storm sewer systems. On-site permanent disposal of concrete washout waste is not authorized by this permit. Discharge to the ground of concrete washout waste that will subsequently be disposed of off-site is authorized by this permit. See Part I,D.3.c of the permit. c) Bulk storage structures for petroleum products and any other chemicals shall have secondary containment or equivalent adequate protection so as to contain all spills and prevent any spilled material from entering State waters. d) No chemicals are to be added to the discharge unless permission for the use of a specific chemical is granted by the Division. In granting the use of such chemicals, special conditions and monitoring may be addressed by separate correspondence. e) The Division reserves the right to require sampling and testing, on a case-by-case basis, in the event that there is reason to suspect that compliance with the SWMP is a problem, or to measure the effectiveness of the BMPs in removing pollutants in the effluent. Such monitoring may include Whole Effluent Toxicity testing. f) All site wastes must be properly managed to prevent potential pollution of State waters. This permit does not authorize on-site waste disposal. g) All dischargers must comply with the lawful requirements of federal agencies, municipalities, counties, drainage districts and other local agencies regarding any discharges of stormwater to storm drain systems or other water courses under their jurisdiction, including applicable requirements in municipal stormwater management programs developed to comply with CDPS permits. Dischargers must comply with local stormwater management requirements, policies or guidelines including erosion and sediment control. 2. BMP Implementation and Design Standards Facilities must select, install, implement. and maintain appropriate BMPs, following good engineering, hydrologic and pollution control practices. BMPs implemented at the site must be adequately designed to provide control for all potential pollutant sources associated with construction activity to prevent pollution or degradation of State waters. PART I Permit - Page 11 Permit No. COR -030000 D. TERMS AND CONDITIONS (cont.) 3. Prohibition of Non-Stormwater Discharges a) Except as provided in paragraphs b, c, and d below, all discharges covered by this permit shall be composed entirely of stormwater associated with construction activity. Discharges of material other than stormwater must be addressed in a separate CDPS permit issued for that discharge. b) Discharges from the following sources that are combined with stormwater discharges associated with construction activity may be authorized by this permit, provided that the non-stormwater component of the discharge is identified in the SWMP (see Part I.C.1.g of this permit): - emergency fire fighting activities - landscape irrigation return flow - uncontaminated springs c) Discharges to the ground of concrete washout water from washing of tools and concrete mixer chutes may be authorized by this permit, provided that: 1) the source is identified in the SWMP; 2) BMPs are included in the SWMP in accordance with Part 1.C.3(c)(7) and to prevent pollution of groundwater in violation of Part 1.D.1.a; and 3) these discharges do not leave the site as surface runoff or to surface waters d) Discharges to the ground of water from construction dewatering activities may be authorized by this permit, provided that: 1) the source is groundwater and/or groundwater combined with stormwater that does not contain pollutants in concentrations exceeding the State groundwater standards in Regulations 5 CCR 1002-41 and 42; 2) the source is identified in the SWMP; 3) BMPs are included in the SWMP, as required by Part I.C.3(c)(8); and 4) these discharges do not leave the site as surface runoff or to surface waters. Discharges to the ground from construction dewatering activities that do not meet the above criteria must be covered under a separate CDPS discharge permit. Contaminated groundwater requiring coverage under a separate CDPS discharge permit may include groundwater contaminated with pollutants from a landfill, mining activity, industrial pollutant plume, underground storage tank, or other source. 4. Releases in Excess of Reportable Ouantities This permit does not relieve the permittee of the reporting requirements of 40 CFR 110, 40 CFR 117 or 40 CFR 302. Any discharge of hazardous material must be handled in accordance with the Division's Noncompliance Notification Requirements (see Part II.A.3 of the permit). 5. SWMP Requirements a) SWMP Preparation and Implementation: The SWMP shall be prepared prior to applying for coverage under the general permit, and certification of its completion submitted with the application. The SWMP shall be implemented prior to commencement of construction activities. The plan shall be updated as appropriate (see paragraph c, below), below). SWMP provisions shall be implemented until expiration or inactivation of permit coverage. b) SWMP Retention Requirements: A copy of the SWMP must be retained on site unless another location, specified by the permittee, is approved by the Division. c) SWMP Review/Changes: The permittee shall amend the SWMP: 1) when there is a change in design, construction, operation, or maintenance of the site, which would require the implementation of new or revised BMPs; or 2) if the SWMP proves to be ineffective in achieving the general objectives of controlling pollutants in stormwater discharges associated with construction activity; or PART I Permit - Page 12 Permit No. COR -030000 D. TERMS AND CONDITIONS (cont) 3) when BMPs are no longer necessary and are removed. SWMP changes shall be made prior to changes in the site conditions, except as allowed for in paragraph d, below. SWMP revisions may include, but are not limited to: potential pollutant source identification; selection of appropriate BMPs for site conditions; BMP maintenance procedures; and interim and final stabilization practices. The SWMP changes may include a schedule for further BMP design and implementation, provided that, if any interim BMPs are needed to comply with the permit, they are also included in the SWMP and implemented during the interim period. d) Responsive SWMP Changes: SWMP changes addressing BMP installation and/or implementation are often required to be made in response to changing conditions, or when current BMPs are determined ineffective. The majority of SWMP revisions to address these changes can be made immediately with quick in -the -field revisions to the SWMP. In the less common scenario where more complex development of materials to modify the SWMP is necessary, SWMP revisions shall be made in accordance with the following requirements: 1) the SWMP shall be revised as soon as practicable, but in no case more than 72 hours after the change(s) in BMP installation and/or implementation occur at the site, and 2) a notation must be included in the SWMP prior to the site change(s) that includes the time and date of the change(s) in the field, an identification of the BMP(s) removed or added, and the location(s) of those BMP(s). 6. Inspections Site inspections must be conducted in accordance with the following requirements and minimum schedules. The required minimum inspection schedules do not reduce or eliminate the permittee's responsibility to implement and maintain BMPs in good and effective operational condition, and in accordance with the SWMP, which could require more frequent inspections. a) Minimum Inspection Schedule: The permittee shall, at a minimum, make a thorough inspection, in accordance with the requirements in 1.D.6.b below, at least once every 14 calendar days. Also, post -storm event inspections must be conducted within 24 hours after the end of any precipitation or snowmelt event that causes surface erosion. Provided the timing is appropriate, the post -storm inspections may be used to fulfill the I4 -day routine inspection requirement. A more frequent inspection schedule than the minimum inspections described may be necessary, to ensure that BMPs continue to operate as needed to comply with the permit. The following conditional modifications • to this Minimum Inspection Schedule are allowed: 1) Post -Storm Event Inspections at Temporarily Idle Sites — If no construction activities will occur following a storm event, post -storm event inspections shall be conducted prior to re -commencing construction activities, but no later than 72 hours following the storm event. The occurrence of any such delayed inspection must be documented in the inspection record. Routine inspections still must be conducted at least every 14 calendar days. 2) Inspections at Completed Sites/Areas — For sites or portions of sites that meet the following criteria, but final stabilization has not been achieved due to a vegetative cover that has not become established, the permittee shall make a thorough inspection of their stormwater management system at least once every month, and post - storm event inspections are not required. This reduced inspection schedule is only allowed if: i) all construction activities that will result in surface ground disturbance are completed; ii) all activities required for fmal stabilization, in accordance with the SWMP, have been completed, with the exception of the application of seed that has not occurred due to seasonal conditions or the necessity for additional seed application to augment previous efforts; and iii) the SWMP has been amended to indicate those areas that will be inspected in accordance with the reduced schedule allowed for in this paragraph. PART I Permit - Page 13 Permit No. COR -030000 D. TERMS AND CONDITIONS (cont.) 3) Winter Conditions Inspections Exclusion -- Inspections are not required at sites where construction activities are temporarily halted, snow cover exists over the entire site for an extended period, and melting conditions posing a risk of surface erosion do not exist. This exception is applicable (AIL during the period where melting conditions do not exist, and applies to the routine 14 -day and monthly inspections, as well as the post -storm - event inspections. The following information must be documented in the inspection record for use of this exclusion: dates when snow cover occurred, date when construction activities ceased, and date melting conditions began. Inspections, as described above, are required at all other times. When site conditions make the schedule required in this section impractical, the permittee may petition the Division to grant an alternate inspection schedule. b) Inspection Requirements 1) Inspection Scope - The construction site perimeter, all disturbed areas, material and/or waste storage areas that are exposed to precipitation, discharge locations, and locations where vehicles access the site shall be inspected for evidence of, or the potential for, pollutants leaving the construction site boundaries, entering the stormwater drainage system, or discharging to state waters. All erosion and sediment control practices identified in the SWMP shall be evaluated to ensure that they are maintained and operating correctly. 2) Inspection Report/Records - The permittce shall keep a record of inspections. Inspection reports must identify any incidents of non-compliance with the terms and conditions of this permit. Inspection records must be retained for three years from expiration or inactivation of permit coverage. At a minimum, the inspection report must include: i) The inspection date; ii) Name(s) and title(s) of personnel making the inspection; iii) Location(s) of discharges of sediment or other pollutants from the site; iv) Location(s) of BMPs that need to be maintained; v) Location(s) of BMPs that failed to operate as designed or proved inadequate for a particular location; vi) Location(s) where additional BMPs are needed that were not in place at the time of inspection; vii) Deviations from the minimum inspection schedule as provided in Part I.D.6.a above; vii) Description of corrective action for items iii, iv, v, and vi, above, dates corrective action(s) taken, and measures taken to prevent future violations, including requisite changes to the SWMP, as necessary; and viii) After adequate corrective action(s) has been taken, or where a report does not identify any incidents requiring corrective action, the report shall contain a signed statement indicating the site is in compliance with the permit to the best of the signer's knowledge and belief. c) Required Actions Following Site Inspections — Where site inspections note the need for BMP maintenance activities, BMPs must be maintained in accordance with the SWMP and Part I.D.7 of the permit. Repair, replacement, or installation of new BMPs determined necessary during site inspections to address ineffective or inadequate BMPs must be conducted in accordance with Part LD.8 of the permit. SWMP updates required as a result of deficiencies in the SWMP noted during site inspections shall be made in accordance with Part I.D.5.c of the permit. 7. BMP Maintenance All erosion and sediment control practices and other protective measures identified in the SWMP must be maintained in effective operating condition. Proper selection and installation of BMPs and implementation of comprehensive Inspection and Maintenance procedures, in accordance with the SWMP, should be adequate to meet this condition. BMPs that are not adequately maintained in accordance with good engineering, hydrologic and pollution control practices, including removal of collected sediment outside the acceptable tolerances of the BMPs, are considered to be no longer operating effectively and must be addressed in accordance with Part I.D.8, below. A specific timeline for implementing maintenance procedures is not included in this permit because BMP maintenance is expected to be proactive, not responsive. Observations resulting in BMP maintenance activities can be made during a site inspection, or during general observations of site conditions. PART I Permit - Page 14 Permit No. COR -030000 D. TERMS AND CONDITIONS (cont.) 8. Replacement and Failed BMPs Adequate site assessment must be performed as part of comprehensive Inspection and Maintenance procedures, to assess the adequacy of BMPs at the site, and the necessity of changes to those BMPs to ensure continued effective performance. Where site assessment results in the determination that new or replacement BMPs are necessary, the BMPs must be installed to ensure on-going implementation of BMPs as per Part I.D.2. Where BMPs have failed, resulting in noncompliance with Part I.D.2, they must be addressed as soon as possible, immediately in most cases, to minimize the discharge of pollutants. When new BMPs are installed or BMPs are replaced, the SWMP must be updated in accordance with Part I.D.5(c). 9. Reporting No scheduled reporting requirements are included in this permit; however, the Division reserves the right to request that a copy of the inspection reports be submitted. 10. SWMP Availability A copy of the SWMP shall be provided upon request to the Division, EPA, or any local agency in charge of approving sediment and erosion plans, grading plans or stormwater management plans, and within the time frame specified in the request. If the SWMP is required to be submitted to any of these entities, it must include a signed certification in accordance with Part I.F.1 of the permit, certifying that the SWMP is complete and meets all permit requirements. All SWMPs required under this permit are considered reports that shall be available to the public under Section 308(b) of the CWA and Section 61.5(4) of the Colorado Discharge Permit System Regulations. The permittee shall make plans available to members of the public upon request. However, the permittee may claim any portion of a SWMP as confidential in accordance with 40 CFR Part 2. 11. Total Maximum Daily Load (TMDLA If a TMDL has been approved for any waterbody into which the permittee discharges, and stormwater discharges associated with construction activity have been assigned a pollutant -specific Wasteload Allocation (WLA) under the TMDL, the Division will either: a) Ensure that the WLA is being implemented properly through alternative local requirements, such as by a municipal stormwater permit; or b) Notify the permittee of the WLA, and amend the permittee's certification to add specific BMPs and/or other requirements, as appropriate. The permittee may be required to do the following: 1) Under the permittee's SWMP, implement specific management practices based on requirements of the WLA, and evaluate whether the requirements are being met through implementation of existing stormwater BMPs or if additional BMPs are necessary. Document the calculations or other evidence that show that the requirements are expected to be met; and 2) If the evaluation shows that additional or modified BMPs are necessary, describe the type and schedule for the BMP additions/revisions. Discharge monitoring may also be required. The permittee may maintain coverage under the general permit provided they comply with the applicable requirements outlined above. The Division reserves the right to require individual or alternate general permit coverage. PART I Permit - Page 15 Permit No. COR -030000 E. ADDITIONAL DEFINITIONS For the purposes of this permit: 1. Best Management Practices (BMPs): schedules of activities, prohibitions of practices, maintenance procedures, and other management practices to prevent or reduce the pollution of waters of the State. BMPs also include treatment requirements, operating procedures, pollution prevention, and practices to control site runoff, spillage or leaks, waste disposal, or drainage from material storage. 2. Dedicated asphalt plants and concrete plants: portable asphalt plants and concrete plants that are located on or adjacent to a construction site and that provide materials only to that specific construction site. 3. Final stabilization: when all ground surface disturbing activities at the site have been completed, and uniform vegetative cover has been established with an individual plant density of at least 70 percent of pre -disturbance levels, or equivalent permanent, physical erosion reduction methods have been employed. For purposes of this permit, establishment of a vegetative cover capable of providing erosion control equivalent to pre-existing conditions at the site will be considered fatal stabilization. 4. Municipal separate storm sewer system: a conveyance or system of conveyances (including: roads with drainage systems, municipal streets, catch basins, curbs, gutters, ditches, man-made channels, or storm drains), owned or operated by a State, city, town, county, district, or other public body (created by state law), having jurisdiction over disposal of sewage, industrial waste, stormwater, or other wastes; designed or used for collecting or conveying stormwater. 5. Operator: the entity that has day-to-day supervision and control of activities occurring at the construction site. This can be the owner, the developer, the general contractor or the agent of one of these parties, in some circumstances. It is anticipated that at different phases of a construction project, different types of parties may satisfy the definition of 'operator' and that the permit may be transferred as the roles change. 6. Outfall: a point source at the point where stormwater leaves the construction site and discharges to a receiving water or a stormwater collection system. 7. Part of a larger common plan of development or sale: a contiguous area where multiple separate and distinct construction activities may be taking place at different times on different schedules. 8. Point source: any discernible, confined and discrete conveyance from which pollutants are or may be discharged. Point source discharges of stormwater result from structures which increase the imperviousness of the ground which acts to collect runoff, with runoff being conveyed along the resulting drainage or grading pattern. 9, Pollutant: dredged spoil, dirt, slurry, solid waste, incinerator residue, sewage, sewage sludge, garbage, trash, chemical waste, biological nutrient, biological material, radioactive material, heat, wrecked or discarded equipment, rock, sand, or any industrial, municipal or agricultural waste. 10. Process water: any water which, during manufacturing or processing, comes into contact with or results from the production of any raw material, intermediate product, finished product, by product or waste product. This definition includes mine drainage. 11. Receiving Water: any classified stream segment (including tributaries) in the State of Colorado into which stormwater related to construction activities discharges. This defmition includes all water courses, even if they are usually dry, such as borrow ditches, arroyos, and other unnamed waterways. 12. Significant Materials include, but are not limited to: raw materials; fuels; materials such as solvents, detergents, and plastic pellets; finished materials such as metallic products; raw materials used in food processing or production; hazardous substances designated under section 101(14) of CERCLA; any chemical the facility is required to report pursuant to section 313 of title II1 of SARA; fertilizers; pesticides; and waste products such as ashes, slag and sludge that have the potential to be released with stormwater discharge. 13. Stormwater: precipitation -induced surface runoff. PART I Permit - Page 16 Permit No. COR -030000 F. GENERAL REQUIREMENTS 1. Sienatory Requirements a) All reports required for submittal shall be signed and certified for accuracy by the permittee in accordance with the following criteria: 1) In the case of corporations, by a principal executive officer of at least the level of vice-president or his or her duly authorized representative, if such representative is responsible for the overall operation of the facility from which the discharge described in the form originates; 2) In the case of a partnership, by a general partner; 3) In the case of a sole proprietorship, by the proprietor; 4) In the case of a municipal, state, or other public facility, by either a principal executive officer, ranking elected official, or other duly authorized employee, if such representative is responsible for the overall operation of the facility from which the discharge described in the form originates. b) Changes to authorization. If an authorization under paragraph a) of this section is no longer accurate because a different individual or position has responsibility for the overall operation of the facility, a new authorization satisfying the requirements of paragraph a) of this section must be submitted to the Division, prior to or together with any reports, information, or applications to be signed by an authorized representative. c) Certification. Any person signing a document under paragraph a) of this section shall make the following certification: "I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations." 2. Retention of Records a) The permittee shall retain copies of the SWMP and all reports required by this permit and records of all data used to complete the application to be covered by this permit, for three years after expiration or inactivation of permit coverage. b) The permittee shall retain a copy of the SWMP required by this permit at the construction site from the date of project initiation to the date of expiration or inactivation of permit coverage, unless another location, specified by the permittee, is approved by the Division. 3. Monitarina The Division reserves the right to require sampling and testing, on a case-by-case basis (see Part I.D.I.e), for example to implement the provisions of a TMDL (see Part I.D.11 of the permit). Reporting procedures for any monitoring data collected will be included in the notification by the Division of monitoring requirements. If monitoring is required, the following defmitions apply: a) The thirty (30) day average shall be determined by the arithmetic mean of all samples collected during a thirty (30) consecutive -day period. b) A grab sample, for monitoring requirements, is a single "dip and take" sample. PART II A. MANAGEMENT REQUIREMENTS 1. Amendine a Permit Certification The permittee shall inform the Division (Permits Section) in writing of' changes to the information provided in the permit application, including the legal contact, the project legal description or map originally submitted with the application, or the planned total disturbed acreage. The permittee shall furnish the Division with any plans and specifications which the Division deems reasonably necessary to evaluate the effect on the discharge and receiving stream. If applicable, this notification may be accomplished through submittal of an application for a CDPS process water permit authorizing the discharge. The SWMP shall be updated and implemented prior to the changes (see Part I.D.5.c). Any discharge to the waters of the State from a point source other than specifically authorized by this permit or a different CDPS permit is prohibited. 2. Special Notifications - Definitions a) Spill: An unintentional release of solid or liquid material which may cause pollution of state waters. b) Upset: An exceptional incident in which there is unintentional and temporary noncompliance with permit discharge limitations because of factors beyond the reasonable control of the permittee. An upset does not include noncompliance to the extent caused by operational error, improperly designed treatment facilities, inadequate treatment facilities, lack of preventative maintenance, or careless or improper operation. 3. Noncompliance Notification a) The permittee shall report the following instances of noncompliance: 1) Any noncompliance which may endanger health or the environment; 2) Any spill or discharge of hazardous substances or oil which may cause pollution of the waters of the state. 3) Any discharge of stormwater which may cause an exceedance of a water quality standard. b) For all instances of noncompliance based on environmental hazards and chemical spills and releases, all needed information must be provided orally to the Colorado Department of Public Health and Environment spill reporting line (24-hour number for environmental hazards and chemical spills and releases: 1-877-518-5608) within 24 hours from the time the permittee becomes aware of the circumstances. For all other instances of noncompliance as defined in this section, all needed information must be provided orally to the Water Quality Control Division within 24 hours from the time the permittee becomes aware of the circumstances. For all instances of noncompliance identified here, a written submission shall also be provided within 5 calendar days of the time the permittee becomes aware of the circumstances. The written submission shall contain a description of: 1) The noncompliance and its cause; 2) The period of noncompliance, including exact dates and times, and if the noncompliance has not been corrected, the anticipated time it is expected to continue; 3) Steps taken or planned to reduce, eliminate, and prevent reoccurrence of the noncompliance. A. MANAGEMENT REQUIREMENTS (cont.) 4. Submission of Incorrect or Incomplete Information Where the permittee failed to submit any relevant facts in a permit application, or submitted incorrect information in a permit application or report to the Division, or relevant new information becomes available, the permittee shall promptly submit the relevant application information which was not submitted or any additional information needed to correct any erroneous information previously submitted. 5, Bypass a) A bypass, which causes effluent limitations (i.e., requirements to implement BMPs in accordance with Parts I.B.3 and I.D.2 of the permit) to be exceeded is prohibited, and the Division may take enforcement action against a permittee for such a bypass, unless: 1) Bypass was unavoidable to prevent loss of life, personal injury, or severe property damage; 2) There were no feasible alternatives to the bypass, such as the use of auxiliary treatment facilities (e.g., alternative BMPs), retention of untreated wastes, or maintenance during normal periods of equipment downtime. This condition is not satisfied if the permittee could have installed adequate backup equipment (e.g., implemented additional BMPs) to prevent a bypass which occurred during normal periods of equipment downtime or preventative maintenance; and 3) The permittee submitted notices as required in "Non -Compliance Notification," Part II.A.3. 6. Upsets a) Effect of an Upset: An upset constitutes an affirmative defense to an action brought for noncompliance with permit limitations and requirements if the requirements of paragraph b of this section are met. (No determination made during administrative review of claims that noncompliance was caused by upset, and before an action for noncompliance, is final administrative action subject to judicial review.) b) Conditions Necessary for a Demonstration of Upset: A permittee who wishes to establish the affirmative defense of upset shall demonstrate through properly signed contemporaneous operating logs, or other relevant evidence that: 1) An upset occurred and that the permittee can identify the specific cause(s) of the upset; 2) The permitted facility was at the time being properly operated; 3) The permittee submitted notice of the upset as required in Part II.A.3. of this permit (24-hour notice); and 4) The permittee complied with any remedial measures required under 40 CFR Section 122.41(d) of the federal regulations or Section 61.8(3)(h) of the Colorado Discharge Permit System Regulations. c) Burden of Proof: In any enforcement proceeding the pernrittee seeking to establish the occurrence of an upset has the burden of proof. 7. Removed Substances Solids, sludges, or other pollutants removed in the course of treatment or control of discharges shall be properly disposed of in a manner such as to prevent any pollutant from such materials from entering waters of the State. 8. Minimization of Adverse Impact The permittee shall take all reasonable steps to minimize any adverse impact to waters of the State resulting from noncompliance with any terms and conditions specified in this permit, including such accelerated or additional monitoring as necessary to determine the nature and impact of the noncomplying discharge. A. MANAGEMENT REQUIREMENTS (cont.) 9. Reduction, Loss, or Failure of Stormwater Controls The permittee has the duty to halt or reduce any activity if necessary to maintain compliance with the permit requirements. Upon reduction, loss, or failure of any stormwater controls, the permittee shall, to the extent necessary to maintain compliance with its permit, control production, or remove all pollutant sources from exposure to stormwater, or both, until 'the stormwater controls are restored or an alternative method of treatment/control is provided. It shall not be a defense for a permittee in an enforcement action that it would be necessary to halt or reduce the permitted activity in order to maintain compliance with the conditions of this permit. 10. Proper Operation and Maintenance The permittee shall at all times properly operate and maintain all facilities and systems of treatment and control (and related appurtenances) which are installed or used by the permittee to achieve compliance with the conditions of this permit. Proper operation and maintenance includes effective performance, adequate funding, adequate operator staffing and training, and adequate laboratory and process controls, including appropriate quality assurance procedures. This provision requires the operation of back-up or auxiliary facilities or similar systems only when necessary to achieve compliance with the conditions of the permit. B. RESPONSIBILITIES 1. Inspections and Right to Entry The permittee shall allow the Director of the State Water Quality Control Division, the EPA Regional Administrator, and/or their authorized representative(s), upon the presentation of credentials: a) To enter upon the permittee's premises where a regulated facility or activity is located or in which any records are required to be kept under the terms and conditions of this permit; b) At reasonable times to have access to and copy any records required to be kept under the terms and conditions of this permit and to inspect any monitoring equipment or monitoring method required in the permit; and c) To enter upon the permittee's premises to investigate, within reason, any actual, suspected, or potential source of water pollution, or any violation of the Colorado Water Quality Control Act. The investigation may include, but is not limited to, the following: sampling of any discharge and/or process waters, the taking of photographs, interviewing permittee staff on alleged violations and other matters related to the permit, and access to any and all facilities or areas within the permittee's premises that may have any effect on the discharge, permit, or any alleged violation, 2. Duty to Provide Information The permittee shall furnish to the Division, within the time frame specified by the Division, any information which the Division may request to determine whether cause exists for modifying, revoking and reissuing, or inactivating coverage under this permit, or to determine compliance with this permit. The permittee shall also furnish to the Division, upon request, copies of records required to be kept by this permit. 3. Transfer of Ownership or Control Certification under this permit may be transferred to a new permittee if: a) The current permittee notifies the Division in writing when the transfer is desired as outlined in Part I.A.7; and b) The notice includes a written agreement between the existing and new permittees containing a specific date for transfer of permit responsibility, coverage and liability between them; and c) The current permittee has met all fee requirements of the Colorado Discharge Permit System Regulations, Section 61.15. B. RESPONSIBILITIES (cont.) 4. Modification, Suspension, or Revocation of Permit By Division All permit modification, inactivation or revocation and reissuance actions shall be subject to the requirements of the Colorado Discharge Permit System Regulations, Sections 61.5(2), 61.5(3), 61.7 and 61.15, 5 C.C.R, 1002-61, except for minor modifications. a) This permit, and/or certification under this permit, may be modified, suspended, or revoked in whole or in part during its term for reasons determined by the Division including, but not limited to, the following: I) Violation of any terms or conditions of the permit; 2) Obtaining a permit by misrepresentation or failing to disclose any fact which is material to the granting or denial of a permit or to the establishment of terms or conditions of the permit; 3) Materially false or inaccurate statements or information in the application for the permit; 4) Promulgation of toxic effluent standards or prohibitions (including any schedule of compliance specified in such effluent standard or prohibition) which are established under Section 307 of the Clean Water Act, where such a toxic pollutant is present in the discharge and such standard or prohibition is more stringent than any limitation for such pollutant in this permit. b) This permit, and/or certification under this permit, may be modified in whole or in part due to a change in any condition that requires either a temporary or permanent reduction or elimination of the permitted discharge, such as: 1) Promulgation of Water Quality Standards applicable to waters affected by the permitted discharge; or 2) Effluent limitations or other requirements applicable pursuant to the State Act or federal requirements; or 3) Control regulations promulgated; or 4) Other available information indicates a potential for violation of adopted Water Quality Standards or stream classifications. c) This permit, or certification under this permit, may be modified in whole or in part to include new effluent limitations and other appropriate permit conditions where data submitted pursuant to Part 1 indicate that such effluent limitations and permit conditions are necessary to ensure compliance with applicable water quality standards and protection of classified uses. d) At the request of the permittee, the Division may modify or inactivate certification under this permit if the following conditions are met: 1) In the case of inactivation, the permittee notifies the Division of its intent to inactivate the certification, and certifies that the site has been finally stabilized; 2) In the case of inactivation, the permittee has ceased any and all discharges to state waters and demonstrates to the Division there is no probability of further uncontrolled discharge(s) which may affect waters of the State. 3) The Division finds that the permittee has shown reasonable grounds consistent with the Federal and State statutes and.regulations for such modification, amendment or inactivation; 4) Fee requirements of Section 61.15 of the Colorado Discharge Permit System Regulations have been met; and 5) Applicable requirements of public notice have been met. For small construction sites covered by a Qualifying Local Program, coverage under this permit is automatically terminated when a site has been finally stabilized. B. RESPONSIBILITIES (cont.) 5. Permit Violations Failure to comply with any terms and/or conditions of this permit shall be a violation of this permit. Dischargers of stormwater associated with industrial activity, as defined in the EPA Stormwater Regulation (40 CFR 122.26(b)(14) and Section 61.3(2) of the Colorado Discharge Permit System Regulations, which do not obtain coverage under this or other Colorado general permits, or under an individual CDPS permit regulating industrial stormwater, will be in violation of the federal Clean Water Act and the Colorado Water Quality Control Act, 25-8-101, as amended. Failure to comply with CDPS permit requirements will also constitute a violation. 6. Legal Responsibilities The issuance of this permit does not convey any property or water rights in either real or personal property, or stream flows, or any exclusive privileges, nor does it authorize any injury to private property or any invasion of personal rights, nor any infringement of Federal, State or local laws or regulations. Nothing in this permit shall be construed to preclude the institution of any legal action or relieve the permittee from any responsibilities, liabilities, or penalties established pursuant to any applicable State law or regulation under authority granted by Section 510 of the Clean Water Act. 7. Severability The provisions of this permit are severable. If any provisions of this permit, or the application of any provision of this permit to any circumstance, are held invalid, the application of such provision to other circumstances and the application of the remainder of this permit shall not be affected. 8. Renewal Application If the permittee desires to continue to discharge, a permit renewal application shall be submitted at least ninety (90) days before this permit expires. If the permittee anticipates that there will be no discharge after the expiration date of this permit, the Division should be promptly notified so that it can inactivate the certification in accordance with Part II.B.4.d. 9. Confidentiality Except for data determined to be confidential under Section 308 of the Federal Clean Water Act and Colorado Discharge Permit System Regulations, Section 61.5(4), all reports prepared in accordance with the terms of this permit shall be available for public inspection at the offices of the Division. The permittee must state what is confidential at the time of submittal. Any information relating to any secret process, method of manufacture or production, or sales or marketing data which has been declared confidential by the permittee, and which may be acquired, ascertained, or discovered, whether in any sampling investigation, emergency investigation, or otherwise, shall not be publicly disclosed by any member, officer, or employee of the Commission or the Division, but shall be kept confidential. Any person seeking to invoke the protection of this section shall bear the burden of proving its applicability. This section shall never be interpreted as preventing full disclosure of effluent data. 10. Fees The permittee is required to submit payment of an annual fee as set forth in the Water Quality Control Act. Failure to submit the required fee when due and payable is a violation of the permit and will result in enforcement action pursuant to Section 25-8-601 et. seq., C.R.S.1973 as amended. B. RESPONSIBILITIES (cont.) 11. Requiring an Individual CDPS Permit The Director may require the permittee to apply for and obtain an individual or alternate general CDPS permit if: a) The discharger is not in compliance with the conditions of this general permit; b) Conditions or standards have changed so that the discharge no longer qualifies for a general permit; or c) Data/information become available which indicate water quality standards may be violated. The permittee must be notified in writing that an application for an individual or alternate general CDPS permit is required. When an individual or alternate general CDPS permit is issued to an operator otherwise covered under this general permit, the applicability of this general permit to that operator is automatically inactivated upon the effective date of the individual or alternate general CDPS permit. Water Quality Control Division WQCD-P-B2 4300 Cherry Creek Drive South Denver, Colorado 80246-1530 RATIONALE STORMWATER DISCHARGES ASSOCIATED WITH CONSTRUCTION ACTIVITY GENERAL PERMIT IN COLORADO THIRD RENEWAL COLORADO DISCHARGE PERMIT NUMBER COR -030000 CONTENTS PAGE I. Introduction 1 IL Changes in this General Permit 1 III. Background 8 IV.. Stormwater Discharges Associated with Construction Activity 9 Y. Coverage Under this Permit 10 VI. Application and Certification 10 VII. Qualifying Local Programs 11 VIII. Terms and Conditions of Permit 11 IX Public Notice -12/22/06 15 X. Public Notice -- 3/23/07 15 I. INTRODUCTION This permit is for the regulation of stormwater runoff from construction activities, and specific allowable non- stormwater discharges in accordance with Part LD.3 of the permit. The term "construction activity" includes ground surface disturbing activities, including, but not limited to, clearing, grading, excavation, demolition, installation of new or improved haul and access roads, staging areas, stockpiling of fill materials, and borrow areas. "Stormwater" is precipitation -induced surface runoff This rationale will explain the background of the Stormwater program, activities which are covered under this permit, how to apply for coverage under this permit, and the requirements of this permit. The forms discussed in the rationale and permit are available on the Water Quality Control Division's website at: www.cdohe.state.co.uslwa/PermitsUnit II. CHANGES IN THIS GENERAL PERMIT Several notable changes from the previous General Permit for Construction Activities have been incorporated into this permit. Significant changes are listed below. Numerous other minor changes were made for clarification purposes only. A. Authority to Discharge This section has been restructured to list all of the types of activities covered by this permit, and to be consistent with the definition of "construction activity." The definition of construction activity has been expanded to provide clarification. See Part LA.1 of the permit. PART II Permit - Page 24 Permit No. COR -030000 II. CHANGES IN THIS GENERAL PERMIT (cont.) B. Authority to Discharge — 011 and Gas Construction This section has been added, to take into account a regulatory change. The federal Energy Policy Act of 2005 exempts nearly all oil and gas construction activities from federal requirements under the Clean Water Act's NPDES stormwater discharge permit program. In January 2006, the Colorado Water Quality Control Commission held a hearing to determine what effects, if any, the change in federal law would have upon Colorado's stormwater regulations. The Commission determined that oil and gas construction sites in Colorado that disturb one or more acres are still required to be covered under Colorado's stormwater permitting regulations (Colorado Discharge Permit System (CDPS) regulations (5CCR 1002-61)). In practice, oil and gas construction sites have the same requirements under this permit as do other types of construction. However, this permit contains some references to the federal Clean Water Act; generally these references are not applicable to oil and gas construction sites to the extent that the references are limited by the federal Energy Policy Act of 2005. See Part 1.4.1(b) of the permit. C. Application Requirements The permit application requirements have changed slightly, including the addition of an email address, if available. See Part LA.4(b). The applicant must be either the owner and/or operator of the construction site. An operator at a construction site that is not covered by a certification held by an appropriate entity may be held liable for operating without the necessary permit coverage. D. Temporary Coverage Part I.A.5(d) of the previous permit (effective July 1, 2002) dealt with temporarily covering a facility under the general permit even if an individual permit is more appropriate. This permit section essentially duplicated the previous section (see Part LA.5(c)), and so it has been deleted, E. Reassignment of Permit Coverage Procedures have been added to clarify the requirements for the transfer of coverage of specific ',onions of a permitted site to a second parry. See Section VIILL3 of the rationale and Part 1.4.8 of the permit. F. Individual Permit Criteria This section has been modified to include situations involving a Total Maximum Daily Load (TMDL). See Part 1.4.11 of the permit. G. Stormwater Management Plan (SWMP) The Stormwater Management Plan section has been divided into two parts: Stormwater Management Plan (SWMP) — General Requirements, which provides the basic framework and general requirements for the SWMP, and Stormwater Management Plan (SWMP) — Contents, which specifically identifies each item that must be addressed in the SWMP. See Parts I.B and LC of the permit. H. Stormwater Management Plan (SWMP) — General Requirements The SWMP General Requirements section has been modified to require that the SWMP be updated in accordance with Parts LID. 5(c) and LD.5(d) of the permit (SWMP Review/Changes). This additional requirement ensures that the SWMP provisions reflect current site conditions. See Part I.B.2(c) of the permit. PART II Permit - Page 25 Permit No. COR -030000 IL CHANGES IN THIS GENERAL PERMIT (cont.) 1. Stormwater Management Plan (SWMP) — Contents The SWMP Contents section has been modified. Some of the changes are limited to organization of information, which does not require modification of an existing permittee's current SWMP. Most of the SWMP changes involve either clarifications, reformatting, or taking recommendations from the Division's SWMP guide and making them permit requirements (e.g., vehicle tracking controls, BMP installation specifications). If an existing permittee (Le., those with permit coverage before June 30, 2007) followed the recommendations in the SWMP guide (Appendix A of the permit application), then their SWMP will presumably meet the new requirements. However, for any existing permittees who did not follow the applicable SWMP guide recommendations, their SMWP must be amended to include the new required items: -SWMP Administrator -Identification of potential pollutant sources -Best Management Practices descriptions and installation specifications, including dedicated concrete or asphalt batch plants; vehicle tracking control; and waste management and disposal (including concrete washout activities). For existing permittees, any SWMP changes based on the change in permit requirements must be completed by October 1, 2007. The plan is not to be submitted to the Division unless requested, but must be available on site as outlined in Part I.D.5(b) of the permit. The BMP requirement clarifications included in this renewed permit in no way imply that adequate BMPs to address all pollutant sources at a permitted site were not required in previous permits. The revised requirements are intended only to better clam SWMP content requirements and provide improved direction to permittees. The SWMP changes are listed below. All new applicants (after June 30, 2007) for permit coverage for their sites must fully comply with the new SWMP organization, plan requirements, and implementation. Site Description: The requirement to provide an estimate of the run-off coefficient has been removed. The run-off coefficient as currently utilized in the SWMP may not contribute sufficiently to permit compliance to justify the effort in determining accurate values. See Part 1. C.1 of the permit. However, the Division still encourages use of the coefficient as needed to adequately evaluate site-specific BMP selection and design criteria (e.g., pond capacities, BMP location, etc.) See Section C.2 of the SWMP guidance (Appendix A of the permit application). 2. Site Map: The requirement to identify boundaries of the 100 -year flood plain has been removed. The boundaries as currently utilized in the SWMP may not contribute sufficiently to permit compliance to justify the effort in determining their location. See Part I. C.2 of the permit. 3. Stormwater Management Controls: This section has been modified to require identification of a SWMP Administrator and all potential pollutants sources in the'SWMP. See Part 1. C.3 of the permit. a) The SWMP Administrator is a specific individual(s), position or title who is responsible for the process of developing, implementing, maintaining, and revising the SWMP. This individual serves as the comprehensive point of contact for all aspects of the facility's SWMP, This requirement may necessitate changes to existing permittees'SWMPs. PART II Permit - Page 26 Permit Na COR -030000 II. CHANGES IN THIS GENERAL PERMIT (cont.) b) The requirement to identify Potential Pollutant Sources has been expanded to include more details for the evaluation of such sources. This evaluation allows for the appropriate selection of BMPs for implementation at a facility or site. Additionally, this section was added to be consistent with the SWMP guide. This requirement may necessitate changes to existing permittees' SWMPs. c) Best Management Practices (BMPs) for Storrnwater Pollution Prevention: This section was modified to require the following items to be addressed in the SWMP. These requirements may necessitate changes to existing permittees' SWMPs. This section also requires that the SWMP provide installation and implementation specifications for each BMP identified in the SWMP. For structural BMPs, in most cases, this must include a technical drawing to provide adequate installation specifications. See Part I.C.3(c), i) Dedicated concrete or asphalt batch plants. This section requires that the practices used to reduce the pollutants in stormwater discharges associated with dedicated concrete or asphalt batch plants be identified in the SWMP. (Coverage under the construction site SWMP and permit is. not required for batch plants if they have alternate CDPS permit coverage.) it) Vehicle tracking control. This section requires that practices be implemented to control sediment from vehicle tracking, and that all such practices implemented at the site be clearly described in the SWMP. iii) Waste management and disposal. This section requires that the practices implemented at the site to control stonnwater pollution from construction site waste, including concrete washout activities, be clearly described in the SWMP. It also requires that concrete washout activities be conducted in a manner that does not contribute pollutants to surface waters or stormwater runoff. iv) Concrete Washout Water. PartLD.3(c) of the permit has been revised to conditionally authorize discharges to the ground of concrete wash water from washing of tools and concrete mixer chutes when appropriate BMPs are implemented. The permit prohibits the discharge of concrete washout water to surface waters and to storm sewer systems. Part I.C.3(c)(7) of the permit requires that BMPs be in place to prevent surface discharges of concrete washout water from the site. The use of unlined pits to contain concrete washout water is a common practice in Colorado. The Division has further evaluated the need for a permit for discharge of concrete washout water to the ground. The Division has determined that the use of appropriate BMPs for on-site washing of tools and concrete mixer chutes would prevent any significant discharge to groundwater. BMPs to protect groundwater are required by Part 1.C.3(c)(7) of the permit. Because pH is a pollutant of concern for washout activities, the soil must have adequate buffering capacity to result in protection of the groundwater standard, or a liner/containment must be used. The following management practices are recommended to prevent an impact from unlined pits to groundwater: (1) the use of the washout site should be temporary (less than 1 year), and (2) the washout site should be not be located in an area where shallow groundwater may be present, such as near natural drainages, springs, or wetlands. PART II Permit - Page 27 Permit No. COR -030000 II. CHANGES IN THIS GENERAL PERMIT (cont.) Where adequate management practices are not followed to protect groundwater quality, the Department may require discharges to unlined pits to cease, or require the entity to obtain alternate regulatory approval through notice from either the Water Quality Control Division or the Hazardous Materials and Waste Management Division. In addition, Part LD.1(b) of the permit has been revised to clearly state that the permit does not authorize on-site permanent disposal of concrete washout waste, only temporary containment of concrete washout water from washing of tools and concrete mixer chutes. Upon termination of use of the washout site, accumulated solid waste, including concrete waste and any contaminated soils, must be removed from the site to prevent on-site disposal of solid waste. v) Construction Dewatering. Part I.D.3(d) of the permit has been revised to conditionally authorize discharges to the ground of water from construction dewatering activities when appropriate BMPs are implemented. The permit does not authorize the discharge of groundwater from construction dewatering to surface waters or to storm sewer systems. Part I. C.3(c)(8) of the permit requires that BMPs be in place to prevent surface discharges. The permittee may apply for coverage under a separate CDPS discharge permit, such as the Construction Dewatering general permit, if there is a potential for discharges to surface waters. The Division has determined that potential pollutant sources introduced into groundwater from construction dewatering operations do not have a reasonable potential to result in exceedance of groundwater standards when the discharge is to the ground. The primary pollutant of concern in uncontaminated groundwater is sediment. Although technology- based standards for sediment do exist in 5 CCR 1002-41, the discharge of sediment to the ground as part of construction dewatering does not have the reasonable potential to result in transport of sediment to the groundwater table so as to result in an exceedance of those standards. For a discharge of water contaminated with other pollutants that are present in concentrations that may cause an exceedance of groundwater standards, separate CDPS discharge permit coverage is required. Contaminated groundwater may include that contaminated with pollutants from a landfill, mining activity, industrial pollutant plume, underground storage tank, or other source of human -induced groundwater pollution and exceeding the State groundwater standards in Regulations 5 CCR 1002-41 and 42. J. Terms and Conditions, General Limitations and Design Standards This section reiterates the requirement that facilities select, install, implement, and maintain appropriate BMPs, following good engineering, hydrologic and pollution control practices. In addition, requirements for protection of water quality standards (see Part .113.1.(a) of the permit) and requirements to adequately design BMPs to prevent pollution or degradation of State waters (see Part LD.2 of the permit) have been revised and are fully discussed in Part IILB of the rationale, below. Additional language was also added to Section IILB of the rationale further claming the expectations for compliance with this permit. 1, Management of Site Waste This section has been modified to clarify that on-site waste must be properly managed to prevent potential pollution of State waters, and that this permit does not authorize on-site waste disposal. Solid waste disposal is regulated by the Hazardous Materials and Waste Management Division. PART II Permit - Page 28 Permit No. COR -030000 II. CHANGES IN THIS GENERAL PERMIT (cont.) K. Terms and Conditions. SWMP Requirements 1. SWMP Review/Changes: This section now requires that when changes are made to site conditions, the SWMP must be revised immediately, except for some BMP description changes which conditionally may occur within 72 hours. This requirement is included to both ensure that the SWMP be kept accurate and up-to-date, and to clam that stormwater management at a site typically should be proactive instead of responsive, and be integrated into site management to ensure it is calibrated with those changes. The section was also clarified to state that only changes in site conditions that do not require new or modified BMPs do not need to be addressed in the SWMP. See Part I.D.5(c) of the permit. 2. SWMP Certification: The previous permit was unclear on a requirement that the copy of SWMP that remains at the facility had to be signed in accordance with permit signatory requirements. This requirement has been deleted. The signatory requirement of Part LF. 1 only applies to the SWMP if it is to be submitted to the Division or to EPA. See Part LF.1 of the permit. L. Terms and Conditions, Post -Storm Inspections The previous permit required post -storm inspections, but did not sped the timing of inspections. This section now requires that post -storm event inspections generally be conducted within 24 hours of the event. An alternative timeline has been allowed, only for sites where there are no construction activities occurring following a storm event. For this condition, post -storm event inspections shall instead be conducted prior to commencing construction activities, but no later than 72 hours following the storm event, and the delay noted in the inspection report. Any exception from the minimum inspection schedule is temporary, and does not eliminate the requirement to perform routine maintenance due to the effects of a storm event, including maintaining vehicle tracking controls and removing sediment from impervious areas. In many cases, maintenance needs will require a more frequent inspection schedule than the minimum inspections required in the permit, to ensure that BMPs continue to operate as needed to comply with the permit. See Part LD.6(a) of the permit. M. Terms and Conditions, Inspections 1. The Winter Conditions Inspection Exclusion section has been modified to include documentation requirements for this exclusion. See Part LD.6(a) of the permit. The Inspection Scope has been modified to include the requirement to inspect waste storage areas during inspections conducted in accordance with the permit. See Part I.D.6(b) of the permit. 2. The requirements for sites to qualify for reduced inspection frequencies for completed sites have been slightly modified (see Part LD.6(a) (2) of the permit,). The requirement now is that only construction activities that disturb the ground surface must be completed. Construction activities that can be conducted without disturbance of the ground surface; for example, interior building construction, and some oil well activities, would not prohibit a site from otherwise qualifying for the reduced inspection frequency. In addition, the requirement for the site to be prepared for final stabilization has been slightly modified to allow for sites that have not yet been seeded to qual f, as long as the site has otherwise been prepared for final stabilization, including completion of appropriate soil preparation, amendments and stabilization practice. This will allow for sites with seasonal seeding limitations or where additional seed application may be needed in the future to still quay. PART II Permit - Page 29 Permit No. COR -030000 IL CHANGES IN THIS GENERAL PERMIT (cont.) 3. The Inspection Report/Records section (Part I.D.6(b)(2)) was added to clarify requirements for inspection reports generated during an inspection conducted in accordance with Part LD.6 of the permit. Inspection reports must be signed by the inspector, or the individual verifying the corrective action indicated in the inspection report, on behalf of the permittee. Inspection reports are not typically required to be submitted to the Division, and therefore, are not required to be signed and certified for accuracy in accordance with Part I.F. I of the permit. However, any inspection reports that are submitted to the Division must follow the signatory requirements contained in that section. N. Terms and Conditions, Maintenance, Repair, and Replacement of Control Practices These sections have been added to clarify requirements for maintaining the BMPs identified in the SWMP and for addressing ineffective or failed BMPs. BMP maintenance and site assessment to determine the overall adequacy of stormwater quality management at the site must occur proactively, in order to ensure adequate control of pollutant sources at the site. In most cases, if BMPs are already not operating effectively, or have failed, the issue must be addressed immediately, to prevent discharge of pollutants. See Parts LD.7 and I.D.8 of the permit. O. Total Maximum Dailv Load (TMDL) A section on TMDLs has been added. This section gives a general outline of the additional requirements that may be imposed by the Division if the facility discharges to a waterbody for which a stormwater-related TMDL is in place. See Section VIII. C of the rationale and Part LD.I I of the permit. Additional Definitions Part LE of the permit has been modified to remove the definition of runoff coefficient, as it is no longer a permit requirement. The definition for state waters has also been deleted, but can be found in Regulation 61. Q. Chanties in Discharge The section on the types of discharge or facility changes that necessitate Division notification has been clarified. See Part II.A.1 of the permit. R. Non -Compliance Notification The section on notification to the Division regarding instances of non-compliance has been amended to clam which types of noncompliance require notification. See Part II.A.3 of the permit. S. Short Term Certifications The previous permit allowed small short-term construction activities to be authorized for a predetermined period from 3 to 12 months, and then automatically expire (an inactivation request did not need to be submitted). The issuance of these certifications has led to significant confusion and incidents of noncompliance resulting from permittees unintentionally letting their certifications expire prior to final stabilization, as well as issues regarding billing. Therefore, the provisions for short-term certifications have been deleted. T. Bypass The Division has revised the Bypass conditions in Part ILA.5 of the permit to be consistent with the requirements of Regulation 61.8(3)(i). The revised language addresses under what rare occurrences BMPs may be bypassed at a site. PART II Permit - Page 30 Permit No. COR -030000 III. BACKGROUND As required under the Clean Water Act amendments of 1987, the Environmental Protection Agency (EPA) has established a framework for regulating municipal and industrial stormwater discharges. This framework is under the National Pollutant Discharge Elimination System (NPDES) program (Note. The Colorado program is referred to as the Colorado Discharge Permit System, or CDPS, instead of NPDES.) The Water Quality Control Division ("the Division') has stormwater regulations (5CCR 1002-61) in place. These regulations require specific types of industrial facilities that discharge stormwater associated with industrial activity (industrial stormwater), to obtain a CDPS permit for such discharge. The regulations specifically include construction activities that disturb one acre of land or more as industrial facilities. Construction activities that are part of a larger common plan of development which disturb one acre or more over a period of time are also included. A. General Permits The Division has determined that the use of general permits is the appropriate procedure for handling most of the thousands of industrial stormwater applications within the State. B. Permit Requirements This permit does not impose numeric effluent limits or require submission of effluent monitoring data in the permit application or in the permit itself The permit instead imposes practice -based effluent limitations for stormwater discharges through the requirement to develop and implement a Stormwater Management Plan (SWMP). The narrative permit requirements include prohibitions against discharges of non-stormwater (e.g., process water). See Part LD.3 of the permit. The permit conditions for the SWMP include the requirement for dischargers to select, implement and maintain Best Management Practices (BMPs) at a permitted construction site that adequately minimize pollutants in the discharges to assure compliance with the terms and conditions of the permit. Part LD.2 of the permit includes basic design standards for BMPs implemented at the site. Facilities must select, install, implement, and maintain appropriate BMPs, following good engineering, hydrologic and pollution control practices. BMPs implemented at the site must be adequately designed to control all potential pollutant sources associated with construction activity to prevent pollution or degradation of State waters. Pollution is defined in CDPS regulations (5CCR 1002-61) as man-made or man -induced, or natural alteration of the physical, chemical, biological, and radiological integrity of water. Utilizing industry -accepted standards for BMP selection that are appropriate for the conditions and pollutant sources present will typically be adequate to meet these criteria, since construction BMPs are intended to prevent the discharge of all but minimal amounts of sediment or other pollutants that would not result in actual pollution of State waters, as defined above. However, site-specific design, including ongoing assessment of BMPs and pollutant sources, is necessary to ensure that BMPs operate as intended. The permit further requires that stormwater discharges from construction activities shall not cause, have the reasonable potential to cause, or measurably contribute to an excursion above any water quality standard, including narrative standards for water quality. This condition is the basis for all CDPS Discharge permits, and addresses the need to ensure that waters of the State maintain adequate water quality, in accordance with water quality standards, to continue to meet their designated uses. It is believed that, in most cases, BMPs can be adequate to meet applicable water quality standards. If water quality impacts are noted, or the Division otherwise determines that additional permit requirements are necessary, they are typically imposed as follows: 1) at the renewal of this general permit or through a general permit specific to an industrial sector (if the issue is sector -based); 2) through direction from the Division based on the implementation of a TMDL (if the issue is watershed -based); or 3) if the issue is site-specific, through a revision to the certification from the Division based an an inspection or SWMP review, or through an individual permit. PART II Permit - Page 31 Permit No. COR -030000 III. BACKGROUND (cont) Some construction sites may be required to comply with a Qualifying Local Program in place of meeting several of the specific requirements in this permit. Sites covered by a Qualing Local Program may not be required to submit an application for coverage or a notice of inactivation and may not be required to pay the Division's annual fee. See Section VII of the rationale. C. Violations/Penalties Dischargers of stormwater associated with industrial activity, as defined in the CDPS regulations (5CCR 1001-61), that do not obtain coverage under this or other Colorado general permits, or under an individual CDPS permit regulating industrial stormwater, will be in violation of the Federal Clean Water Act and the Colorado Water Quality Control Act, 25-8-101. For facilities covered under a CDPS permit, failure to comply with any CDPS permit requirement constitutes a violation. As of the time of permit issuance, civil penalties for violations of the Act or CDPS permit requirements may be up to $10,000 per day, and criminal pollution of state waters is punishable by fines of up to $25,000 per day. IV. STORMWATER DISCHARGES ASSOCIATED WITH CONSTRUCTIONACTIVITY The stormwater regulations (CDPS regulations (5CCR 1002-61)), require that stormwater discharges associated with certain industrial activities be covered under the permit program. Construction activity that disturbs one acre or more during the life of the project is specifically included in the listed industrial activities. This permit is intended to cover most stormwater discharges from construction facilities required by State regulation to obtain a permit. A. Construction Activity Construction activity includes ground surface disturbing activities including, but not limited to, clearing, grading, excavation, demolition, installation of new or improved haul and access roads, staging areas, stockpiling offll materials, and dedicated borrow/fill areas. Construction does not include routine maintenance to maintain original line and grade, hydraulic capacity, or original purpose of the facility. (The maintenance exclusion is intended for projects such as road resurfacing, and where there will be less than one acre of additional ground disturbed. Improvements or upgrades to existing facilities or roads, where at least one acre is disturbed, would not qualib, as "routine maintenance.') Definitions of additional terms can be found in Part LE of the permit. Stormwater discharges from all construction activity require permit coverage, except for operations that result in the disturbance of less than one acre of total land area and which are not part of a larger common plan of development or sale. A `larger common plan of development or sale" is a contiguous area where multiple separate and distinct construction activities may be taking place at different times on different schedules. B. Times ofDischarges/Activities Covered 1. Stormwater: This permit is intended to cover most new or existing discharges composed entirely of stormwater from construction activities that are required by State regulation to obtain a permit. This includes stormwater discharges associated with areas that are dedicated to producing earthen materials, such as soils, sand, and gravel, for use at a single construction site. These areas may be located at the construction site or at some other location. This permit does not authorize the discharge of mine water or process water from borrow areas. This permit may also cover stormwater discharges associated with dedicated asphalt plants and concrete plants located at a specific construction site. PART 1I Permit - Page 32 Permit No. COR -030000 IV STORMWATER DISCHARGES ASSOCIATED WITH CONSTRUCTION ACTIVITY (cont.) 2. Process water: Under certain restrictions, discharges to the ground from construction dewatering, and from concrete washout activities, are also covered (see Parts I.C.3(c)(7), LC.3(c)(8), I.D.3(c) and LD.3(d) of the permit). C. Types ofActivities NOT Covered 1. Stormwater: Aside from the sources listed in subparagraph B.1, above, this permit does not cover stormwater discharged from construction sites that is mixed with stormwater from other types of industrial activities, or process water of any kind. Other types of industrial activities that require stormwater discharge permits pursuant to different sections of the regulations (Regulation 5 CCR 1002-61, Section 61.2(e)(iii)(A-I, KJ], are not covered by this permit. 2. Process water: This permit also does not cover any discharge of process water to surface waters. If the construction activity encounters groundwater, in order to discharge this groundwater to surface waters, a Construction Dewatering Discharge Permit (permit number COG -070000) must also be obtained. An application for this permit can be obtained from the Division at the address listed in Part I.A.4(a) of the permit, or at the website in Section 1 of the rationale. V. COVERAGE UNDER THIS GENERAL PERMIT Under this general permit, owners or operators of stormwater discharges associated with construction activity may be granted authorization to discharge stormwater into waters of the State of Colorado. This includes stormwater discharges associated with industrial activity from areas that are dedicated to producing earthen materials, such as soils, sand and gravel, for use at a single construction site, and dedicated asphalt plants and dedicated concrete plants. This permit does not pre-empt or supersede_the authority of other local, state or federal agencies to prohibit, restrict or control discharges of stormwater to storm drain systems or other water courses within their jurisdiction. Authorization to discharge under the permit requires submittal of a completed application form and a certification that the SWMP is complete, unless the site is covered by a Qualifying Local Program. Upon receipt of all required information, the Division may allow or disallow coverage under the general permit. VI. APPLICATION AND CERTIFICATION At least ten days prior to the commencement of construction activities, the owner or operator of the construction site shall submit an original completed application which includes the signed certification that the SWMP is complete. Original signatures are required for the application to be considered complete. For small construction sites only, if the site is covered by a Qualifying Local Program (see below), submittal of an application is not required. For the purposes of this permit, the `operator" is the person who has day-to-day control over the project. This can be the owner, the developer, the general contractor or the agent of one of these parties, in some circumstances. At different times during a construction project, different types of parties may satisfy the definition of "operator" and the certification may be transferred as roles change. (Note - Under the Federal regulations, this application process is referred to as a Notice of Intent, or NOL For internal consistency with its current program, the Division will continue to use the term "application.') A summary of the permit application requirements is found in the permit at Part I.A.4(b). If coverage under this general permit is appropriate, then a certification will be developed and the applicant will be certified under this general permit. PART II Permit - Page 33 Permit No. COR -030000 VH. QUALIFYING LOCAL PROGRAMS For stormwater discharges associated with small construction activity (i.e., one to five acre disturbed area sites), the permit includes conditions that incorporate approved qualifying local erosion and sediment control program (Qualing Local Program) requirements by reference. A Qualifying Local Program is a municipal stormwater program for stormwater discharges associated with small construction activity that has been formally approved by the Division. The requirements for Qualifying Local Programs are outlined in Part 61.8(12) of the Colorado Discharger Permit System Regulations (also see the Division's "Qualifying Local Programs for Small Construction Sites - Application Guidance'). Such programs must impose requirements to protect water quality that are at least as stringent as those required in this permit. . A. Approval Termination A Qualifying Local Program may be terminated by either the Division or the municipality. Upon termination of Division approval of a Qualifying Local Program, any small construction activity required to obtain permit coverage under Section 61.3(2)(h) of the CDPS regulations (5CCR 1002-61), shall submit an application form as provided by the Division, with a certification that the Stormwater Management Plan (SWMP) is complete as required by Part I.A.3 of the permit, within 30 days of Division notification. B. Approval Expiration Division approval of a Qual Eying Local Program will expire with this general permit on June 30, 2012. Any municipality desiring to continue Division approval of their program must reapply by March 31, 2012. The Division will determine if the program may continue as a approved Qualifying Local Program. VIII. TERMS AND CONDITIONS OF PERMIT A. Coverage under a 9ualifyinKLocal Program — For Small Construction Sites Only For small construction sites (disturbing less than 5 acres) covered under a Qual5ing Local Program (see Section VII, above), only certain permit requirements apply, as outlined below. The local program must have been formally designated by the Division to qualify. Most municipalities have some type of local program and may require permits and fees. However, simply having a program in place does not necessarily mean that it is a qualifying program and that a State permit is not required. The local municipality is responsible for notifying operators and/or owners that they are covered by a Qualifying Local Program. As of May 31, 2007, the only approved Qualifying Local Programs within the state are for Golden, Durango and Lakewood. An updated list of municipalities with Qual ming Local Programs, including contact information, is available on the Division's website at: hap: //www. cdphe.state. co. uslwq/Permits Un it/storm water/construction. html. The Division reserves the right to require any construction owner or operator within the jurisdiction of a Qual ding Local Program covered under this permit to apply for and obtain coverage under the full requirements of this permit. 1. Permit Coverage: If a construction site is within the jurisdiction of a Qualing Local Program, the owner or operator of the construction activity is authorized to discharge stormwater associated with small construction activity under this general permit without the submittal of an application to the Division. The permittee also is not required to submit an inactivation notice or payment of an annual fee to the Division. PART II Permit - Page 34 Permit No. COR -030000 VIII. TERMS AND CONDITIONS OF PERMIT (cont) 2. Permit Terms and Conditions: The permittee covered by a Qualing Local Program must comply with the requirements of that Qualifying Local Program. In addition, the following permit sections are applicable: a) Parts 1.A.1, 1,4,2, and 1.A.3: Authorization to discharge and discussion of coverage under the permit. b) Part I. D.1: General limitations that must be met in addition to local requirements. c) Parts 1.D.2, LD.3, LD.4: BMP implementation, prohibition of non-stormwater discharges unless addressed in a separate CDPSpermit, and requirements related to releases of reportable quantities. d) Part I.D.11: Potential coverage under a Total Maximum Daily Load (TMDL). e) Part LE: Additional definitions. f) Part II (except for Parts II.A.1, 11.B.3,1LB.8, and ILB.10): Specifically includes, but is not limited to, provisions applicable in the case of noncompliance with permit requirements, and requirements to provide information and access. B. Stormwater Management Plans (SWMPs) Prior to commencement of construction, a stormwater management plan (SWMP) shall be developed and implemented for each facility covered by this permit. A certification that the SWMP is complete must be submitted with the permit application. The SWMP shall identify potential sources ofpollution (including sediment) which may reasonably be expected to affect the quality of stormwater discharges associated with construction activityfrom the facility. In addition, the plan shall describe the Best Management Practices (BMPs) which will be used to reduce the pollutants in stormwater discharges from the construction site. (Note that permanent stormwater controls, such as ponds, that are used as temporary construction BMPs must be adequately covered in the SWMP.) Facilities must implement the provisions of their SWMP as a condition of this permit. The SWMP shall include the following items: 1. Site Description 2. Site Map 3. Stormwater Management Controls 4. Long-term Stormwater Management S. Inspection and Maintenance (See Parts 1.B. and LC of the permit for a more detailed description of SWMP requirements.) The Division has a guidance document available on preparing a SWMP. The document is included as Appendix A of the permit application, and is available on the Division's website at www.cdphe.state.co.us/wq/PermitsUnit. Some changes have been made to the SWMP requirements. See Section 11.1 of the rationale for a discussion on permittee responsibilities regarding those changes. PART II Permit - Page 35 Permit No. COR -030000 VIII. TERMS AND CONDITIONS OF PERMIT (cont.) Master SWMP Often, a large construction project will involve multiple smaller construction sites that are within a common plan of development, or multiple well pads under construction within an oil and gas well field. Pollutant sources and the types of BMPs used can be relatively consistent in such cases. A permittee could significantly streamline the SWMP development process through the use of a master SWMP. SWMP information must be developed and maintained for all construction activities that exceed one acre (or are part of a common plan of development exceeding one acre) conducted within the permitted area. By developing a single master plan, the permittee can eliminate the need to develop repetitive information in separate plans. Such a plan could include two sections, one containing a reference section with information applicable to all sites (e.g., installation details and maintenance requirements for many standard BMPs, such as silt fence and erosion blankets), and the second containing all of the information specific to each site (e.g., site BMP map, drainage plans, details for BMPs requiring site specific design, such as retention ponds). As new activities begin, information required in the SWMP is added to the plan, and as areas become finally stabilized, the related information is removed. Records of information related to areas that have been finally stabilized that are removed from the active plan must be maintained for a period of at least three years from the date that the associated site is finally stabilized. C. Total Maximum Daily Load (TMDL) If the designated use of a stream or water body has been impaired by the presence of a pollutant(s), development of a Total Maximum Daily Load (TMDL) may be required. A TMDL is an estimate of allowable loading in the waterbody for the pollutant in question. Types of discharges that are or have the potential to be a significant source of the pollutant are also identified. If a TMDL has been approved for any waterbody into which the permittee discharges, and stormwater discharges associated with construction activity have been assigned a pollutant -specific Wasteload Allocation (WLA) under the TMDL, the Division will either: 1. Notify the permittee of the TMDL, and amend the permittee's certification to add specific BMPs and/or other requirements, as appropriate; or 2. Ensure, that the TMDL is being implemented properly through alternative local requirements, such as by a municipal stormwater permit. (The only current example of this is the Cherry Creek Reservoir Control Regulation (72.0), which mandates that municipalities within the basin require specific BMPs for construction sites.) See Part LD.11 of the permit for further information. D. Monitoring Sampling and testing of stormwater for specific parameters is not required on a routine basis under this permit. However, the Division reserves the right to require sampling and testing on a case-by-case basis, in the event that there is reason to suspect that compliance with the SWMP is a problem, or to measure the effectiveness of the BMPs in removing pollutants in the effluent. See Part LD.1(e) of the permit. E. Facility Inspections Construction sites typically must inspect their stormwater management controls at least every 14 days and within 24 hours after the end of any precipitation or snowmelt event that causes surface erosion. At sites or portions of sites where ground -disturbing construction has been completed but a vegetative cover has not been established, these inspections must occur at least once per month. (At sites where persistent snow cover conditions exist, inspections are not required during the period that melting conditions do not exist. These PART II Permit - Page 36 Permit No. COR. -030000 VIII. TERMS AND CONDITIONS OF PERMIT (cont.) conditions are only expected to occur at high elevations within the Colorado mountains.) For all of these inspections, records must be kept on file. Exceptions to the inspection requirements are detailed in Part LD.6 of the permit. F. SWMP Revisions The permittee shall amend the SWMP whenever there is a change in design, construction, operation, or maintenance of the site, which would require the implementation of new or revised BMPs. The SWMP shall also be amended if it proves to be ineffective in achieving the general objectives of controlling pollutants in stormwater discharges associated with construction activity. The timing for completion of SWMP changes is detailed in Parts I.D.5(c) and I.D.5(d) of the permit. SWMP revisions shall be made prior to change in the field, or in accordance with Part I.D.5(d) of the permit. G. Reporting The inspection record shall be made available to the Division upon request. Regular submittal of an annual report is not required in this permit. See Part I.D.9 of the permit. H. Annual Fee The permittee is required to submit payment of an annual fee as set forth in the Water Quality Control Act. Permittees will be billed for the initial permit fee within a few weeks of permit issuance and then annually, based on a July 1 through June 30 billing cycle. 1. Responsibility for Permit The permit certification for a site may be inactivated, once coverage is no longer needed. The certification may be transferred, if another party is assuming responsibility for the entire area covered by the certification. In addition, permit responsibility for part of the area covered by the certification may be reassigned to another party. These actions are summarized below. The Stormwater Program construction fact sheet explains these actions in further detail under the section on Multiple Owner/Developer Sites, and is available on the Division website at http://www.cdphe.state.co.us/wq/PermucUnit/.storntwater/Cons!FactSheet.PDF, Section F. 1. Inactivation Notice: When a site has been finally stabilized in accordance with the SWMP, the permittee shall submit an Inactivation Notice that is signed in accordance with Part LF.1 of the permit. A summary of the Inactivation Notice content is described in Part LA.6 of the permit. A copy of the Inactivation Notice form will be mailed to the permittee along with the permit certification. Additional copies are available from the Division. For sites where all areas have been removed from permit coverage, the permittee may submit an inactivation notice and terminate permit coverage. In such cases the permittee would no longer have any land covered under their permit certification, and therefore there would be no areas remaining to finally stabilize. Areas may be removed from permit coverage by: -reassignment of permit coverage (Part LA.8 of the permit); - sale to homeowner(s) (Part I.A.9 of the permit); or - amendment by the permittee, in accordance with Division guidance for areas where permit coverage has been obtained by a new operator or returned to agricultural use. PART 11 Permit - Page 37 Permit No. COR -030000 VIII TERMS AND CONDITIONS OF PERMIT (cont.) 2. Transfer of Permit: When responsibility for stormwater discharges for an entire construction site changes from one individual to another, the permit shall be transferred in accordance with Part LA.7 of the permit. The permittee shall submit a completed Notice of Transfer form, which is available from the Division, and at www.cdphe.state.co.us/wq/PermitsUnit. If the new responsible party will not complete the transfer form, the permit may be inactivated if the permittee has no legal responsibility, through ownership or contract, for the construction activities at the site. In this case, the new owner or operator would be required to obtain permit coverage separately. 3. Reassignment of Permit: When a permittee no longer has control of a specific portion of a permitted site, and wishes to transfer coverage of that portion of the site to a second party, the permittee shall submit a completed Notice of Reassignment of Permit Coverage form, which is available from the Division, and at www.cdphe.state.co.us/watPerntitsUnit, The form requires that both the existing permittee and new permittee complete their respective sections. See Part LA.8 of the permit. J. Duration of Permit The general permit will expire on June 30, 2012. The permittee's authority to discharge under this permit is approved until the expiration date of the general permit. Any permittee desiring continued coverage under the general permit past the expiration date must apply for recertification under the general permit at least 90 days prior to its expiration date. Kathleen Rosow December 18, 2006 IX PUBLIC NOTICE —12/22/06 The permit was sent to public notice on December 22, 2006. A public meeting was requested, and was held on February 2, 2007. Numerous comments were received on the draft permit. Responses to those comments, and a summary of changes made to the draft permit, are in a separate document entitled "Division Response To Public Comments." The permit will be sent to a second public notice on March 23, 2007. Any changes resulting from the second public notice will be summarized in the rationale. Kathleen Rosow March 22, 2007 X. PUBLIC NOTICE — 3/23/07 The permit was sent to public notice for a second time on March 23, 2007. Numerous comments were received on the second draft permit. Responses to those comments, and a summary of the additional changes made to the draft permit, are contained in a separate document entitled "Division Response To Public Comments Part 11". This document is part of the rationale. Any changes based on the Division response are incorporated into the rationale and permit. The response document is available online at http://www.cdphe.state.co.ushvq/Permits Unit/storntwater/construction.html, or by emailing cdphe.wastorm@state.co.us, or by calling the Division at 303-692-3517. Kathleen Rosow May 31, 2007 Colorado Department of Public Health & Environment FOR AGENCY USE ONLY Water Quality Control Division WQCD-P-B2 REC 4300 Cherry Creek Drive South EFF Denver, Colorado 80246-1530 YEAR MONTH DAY INACTIVATION NOTICE FOR CONSTRUCTION STORMWATER DISCHARGE GENERAL PERMIT CERTIFICATION Please print or type. Form must be filled out completely. Certification Number: COR -03 _ Taxpayer ID or EIN Permittee (Company) Name: Permittee Address: Phone No. ( ) Site/Facility Name: Construction Site Address/Location: County: Contact Person: Summary of work performed and description of final site stabilization: I certify under penalty of law that by the date of my signature below, all disturbed soils at the identified construction site have been finally stabilized; all temporary erosion and sediment control measures have been removed; all construction and equipment maintenance wastes have been disposed of properly; and all elements of the Stormwater Management Plan have been completed. I understand that by submitting this notice of inactivation, I am no longer authorized to discharge stormwater associated with construction activity by the general permit. I understand that discharging pollutants in stormwater associated with construction activities to the waters of the State of Colorado, where such discharges are not authorized by a CDPS permit, is unlawful under the Colorado Water Quality Control Act and the Clean Water Act. I certify under penalty of law that I have personally examined and am familiar with the information submitted herein, and based on my inquiry of those individuals immediately responsible for obtaining the information, I believe that the information is true, accurate and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment. (See 18 U.S.0 1001 and 33 U.S.C. 1319.) Signature of Permit Applicant (Legally Responsible Party) Date Signed Name (printed) Title HIGHLIGHTS CONSTRUCTION ACTIVITY (renewal) STORMWATER GENERAL PERMIT PERMIT REQUIREMENTS: * Inspections: Inspection of stormwater management system required at least every 14 days and after any precipitation or snowmelt event that causes surface erosion. (See Inspections, page 12 of the permit.) * Records: Records of inspections must be kept and be available for review by the Division. * Stormwater Management Plan (SWMP): The SWMP requirements have changed slightly. You may need to amend your SWMP — see the Rationale, page 3. Any needed changes must be completed by October 1, 2007. -A copy of the SWMP must be kept on site at all times. PERMIT FEE: * Send payment only when you receive an invoice (sent once a year). PERMIT TERMINATION AND TRANSFER: * If the facility is finally stabilized, you may inactivate the permit, using the enclosed Division form. • "Final stabilization" is reached when all the construction is complete, paving is finished, and the vegetation (grass, etc.) is established, not just reseeded. See permit, page 9. * If the site changes ownership, you should transfer the permit to the new owner. * If part of the site will be sold to a new owner, you will need to reassign permit coverage. * Forms for these actions are available on our website, below. Also see page 5 of the permit. QUESTIONS? * www.cdphe.state.co.us/wq/PermitsUnit/stormwater * Email cdphe.wgstorm@state.co.us • Or call (303)692-3517, ask for Matt Czahor or Kathy Rosow 6/07 Chevron North American Exploration and Production Company Piceance Basin Natural Gas Development Program Early Production System 1 Central Production Facility Water Treatment System Fresh Water Pond Water Mgmt. Pond • N Chevron Piceance Basin Natural Gas Development Program Figure 1 kairo Iwo MidContinonUAlaska SBU Chevron North America Exploration end Production EA NE STERN SCOPE FIELD: SMNNFR ROSE CO. Mos e-Catflold ST CO PROPERTY UN1CUE PROPERTY COM MON. PROJECT PICc"ANCE BASIN NATURAL OAS DEVELOP MENT PROGRAM Vis y__gtan Dmcaor DRAW INC: PISA -M.4.RCL-M.P-LR59000O00O1 REVS ONS ELEM'. COSTCENTER: ENGa' TB ORFRZ PROJECT PROJECT NO. NEW DATE FILE APPRVO SCALE SHEET SEE 3111•1011 PCT64 :/ . USDA Soil Types SG 03 03 C3 03 03 03 03 C3 C3 0 C3 C3 C3 03 C3 03 03 C3 a 03 C3 L,3 1 -Aga very fine sandy loam, 0-3% slopes 12-Bunkwater very fine sandy loam, 1-8% slopes 2-Badland 28-Cumulic Haploborolls, 1-3% slopes 29-Debeque very channery loam, 5-20% slopes 3-Barx loam, 3-12% slopes 30-Debeque-Hesperus complex, 5-25% slopes 31 -Dominguez clay loam, 1-3% slopes 32 -Dominguez clay loam, 3-8% slopes 36-Fluvaquents, 0-3% slopes 42-Grobutte very channery loam, 30-60% slopes 44-Happle very channery sandy loam, 3-12% slopes 45-Happle very channery sandy loam, 12-25% slopes 46-Happle-rock outcrop association, 25-65% slopes 52-Northwater-Adel complex, 5-50% slopes 54-Panitchen loam, 1-6% slopes 55-Parachute_irigul complex, 5-30% slopes 56-Parachute-lrigul-Rhone association, 25-50% slopes 63 -Silas loams, 1-12% slopes 65-Torriorthents-Cool Rock outcrop complex, 35-90% slopes 66-Torriorthents-warm Rock outcrop complex, 35-90% slopes 67 -Tosca channery loam, 25-80% slopes 69-Travessilla-Rock outcrop complex, 10-35% slopes 7-Biedsaw-Sunup gravelly loam, 10-40% slopes 70-Uffens loam, 1-8% slopes 71-Utso-Rock outcrop complex, 40-90% slopes 75-Wrayha-Rabbitex-Veatch complex, 45-65% slopes 78-Youngston loam, 1-6% slopes 79 -water F:\RM106\C\Chevron Products Company\0060824 Piceance Basin\GIS\Final Report\Soils.mxd * Cowboy Chapel Em Hiner Gate IV Study Area 1 L 1-t County Line 0 1 2 3 4 Miles CLIENT CONFIDENTIAL Figure 4-14 Soil Classes in the Program Area Chevron's Piceance Basin Natural Gas Development Program Garfield and Mesa Counties, Colorado ERM Environmental Resources Management 6455 S. Yosemite St, Suite 900 Greenwood Village, CO 80111 rabies\ ESHIA Report 2008\ Final Report GIS 1, SoslEros Cowboy Chapel 11( cl Erosion Potential Slight to Very Severe bo ©5O M arci cu Table 1 Program Soil Types Soil Map Unit Soil Series Ecological Area Description Soil Texture Slope Runoff Potential Drainage Class Permeability Water Erosion Potential Compaction and Rutting Potential 1 Aga 2 Badland 3 Barx 7 Biedsaw-Sunup 12 Bunkwater 28 29 31 32 36 Cumulic Haploborolls DeBeque Dominguez Dominguez Fiuvaquents 42 Grobuue 44 Happle 45 Happle Happle-Rock 46 outcrop association Northwater-Adcl complex Panitchen Parachute-Irigul complex Parachute-Irigul- Rhone association 52 54 55 56 63 Silas loam Torriorthents, 66 wart -Rock outcrop complex 67 Tosca channery Travessil la -Rock outcrop complex 70 Uffens 69 71 Utso-Rock outcmp complex Wrayha- 75 Rabbitex-Veatch complex Riverbottom Ridgetops and canyon sides Rolling loam Foothill Juniper Alkaline slopes Foothill Swale Deep loam Semidesert Clay Loam Semidesert Clay Loam River bottom Mountain Pinyon Rolling loam Loamy Slopes Rock Outcrop Spruce/Subalpine Fir Foothill Swale Mountain Lam and Loamy Slopes Brushy Loam and Loamy slopes Mountain Swale Pinyon/Juniper Brushy Loam Foothill Juniper Salt Flats Rocky Maintain Douglas Fir Mountain Pinyon Sandy loam Weathered bedrock Loam Gravelly loams Sandy loam Gravelly sandy clay loam Very channery loam Clay loam Clay loam Loam to gravelly sandy clay loam Very channery loam Very channery sandy loam Very channery loam sandy Sandy loam Clay Ioam Loam Loam Loam Loam Unweathered bedrock Loam Sandy loam to unweathered bedrock Loam Very channery loam to unweathered bedrock Loam to Sandy loam 0 - 3 Slow Well drained Moderate 10-65 Very rapid Well drained Very slow 3-12 Medium Well drained Moderate 10-40 Rapid Well drained Moderate 1-8 Slow Well drained Moderate slow Well drained to Moderate to 1-3 Slow somewhat moderate slow poorly drained 5-20 Rapid Well drained Moderate rapid 1-3 Slow Well drained Slow 3-8 Medium Well drained Slow 0-3 Slow Poorly drained Slow 30 - 60 Rapid Well drained Moderate 3-12 Slow Well drained Moderate 12-25 Medium Well drained Moderate 25-65 Rapid Well drained 5-50 1-6 5-30 Medium to rapid Stow Medium to rapid Moderate Well drained Moderate Well drained Moderately slow Well drained Moderate 25-50 Rapid Well drained Moderate 1-12 Slow 35-90 Very rapid Moderately well drained Well drained to Moderate somewhat Moderate to excessively moderately rapid drained 25-80 Rapid Well drained Moderate 10-35 Rapid Well drained Moderate rapid 1-8 Medium Well drained Moderately slow 40 - 90 Rapid Well drained Moderate Slight Moderate Very severe Severe Severe Severe Slight Moderate Severe Slight Severe Slight Severe Severe Severe Severe Severe to very severe Slight Moderate to very severe Very severe Slight to very severe Very severe Very severe Very severe Very severe Very severe 45 65pddiur to Well drained Slow to moderate Very severe ra High 78 Youngston Loamy Salt desert Loam 1-6 Slow Well drained Moderately slow Slight to very severe URS Washington Division PICEANCE BASIN NATURAL GAS DEVELOPMENT PROGRAM Wien Milli GARFIELD COUNTY, COLORADO SPECIFICATION FOR RE -VEGETATION OF DISTURBED AREAS 0 Approved for Construction VIVI B Updated with Specific State / County Requirements SMC 12-18-07 A Issued Preliminary for Review and Comments KCH JRV 8-17-07 REV. DESCRIPTION BY CHKD APVD R D DATE REVISIONS CLIENT: Chevron North America Exploration and Production - –0) REG/, � %r PROJECT: Piceance Basin Natural Gas Development Program f o�� ���� "�0•,'y�"d�ir JOB NO.: 29454 x 1 ik . ‘1: ,v (4: DOC. NO.: PBSR-ALLCIV-SPC-URS-00000-00004-00 °°#‘17•4. .414.1/4q IHA.Proleets\Chevron129021 CNAEPISPECIFJCATIONS1CiNM2-0-O14_Revegetatlon rev 2 SMC doe Washington Division 4ate: 4/29/08 RE -VEGETATION OF DISTURBED AREAS PICEANCE NATURAL GAS DEVELOPMENT PROGRAM Doc. No. PBSR-ALLCIVSPC•URS- 00000-00004-00 new 0 Page: 2 of 10 TABLE OF CONTENTS SECTION PAGE 1. GENERAL 3 1.1 Scope 3 1.2 Related Specifications 3 1.3 Definitions 3 1.4 References and Standards 3 1.5 Submittals 4 1.6 Quality Assurance 4 1.7 Delivery, Storage, and Handling 4 1.8 Warranty 4 2. PRODUCTS 5 2.1 Materials 5 3. EXECUTION 6 3.1 General 6 3.2 Seeding Methods for Slopes Less than 3% 6 3.3 Seeding Methods for Slopes Greater than 3% 7 3.4 Mulching 7 3.5 Maintenance 7 3.6 Workmanship 8 3.7 Field Quality Control 8 3.8 Adjusting and Cleaning 8 3.9 Protection 8 Washington Division 040 Date: 4/29/08 RE -VEGETATION OF DISTURBED AREAS PiCEANCE NATURAL GAS DEVELOPMENT PROGRAM Doc. No. PBSfi-ALLCIV-SPC•URS- 0000000004.00 Fjev: 0 Page: 3 of 10 1. GENERAL 1.1 Scope This Specification covers the site conditions, materials and construction requirements for native grass seeding for the Chevron Piceance Basin Natural Gas Development Program. Services for this work shall consist of, but not necessarily be limited to the following: general preparation, preparation for seeding, seed placement, mulching, maintenance, workmanship, field quality control, adjusting, cleaning and protection. State and local laws concerning pollution abatement will be followed. t2 Related Specifications 1.2.1 Specification No.12-0-002 — Site Preparation and Earthwork 1.2.2 Specification No.12-0-003 — Erosion and Sediment Control 1.3 Definitions 1.3.1 Owner: Chevron North America Exploration and Production Company 1.3.2 Engineer: URS Corporation Washington Division. All references to Engineer refer to the Engineer or his/her designated representative. 1.3.3 Contractor: TBN 1.3.4 Subcontractor: Firm undertaking the scope of work as defined in this Specification 1.3.5 State: Refers to the state of Colorado 1.4 References, Standards, and Guidance The codes, standards, regulations, and guidance documents of the following organizations in effect as of August 10, 2007 form a part of this Specification to the extent indicated by the references thereto: 1.4.1 Occupational Safety and Health Act (OSHA), 24, CFR 1926, OSHA Standards for the Construction industry, 1.4.2 Colorado Department of Transportation (CDOT), Standard Specifications for Road and Bridge Construction. 1.4.3 Bureau of Land Management (BLM) — Oil and Gas, Surface Operating Standards for Oil and Gas Exploration and Development. Fourth Edition. 1.4.4 Garfield County Vegetation Management Guidance — Noxious Weed List, Reclamation Standards, Weed Management Plan, Re -vegetation Guidelines Should a conflict be found to exist between any applicable portion of the referenced codes and standards and this Specification, the conflict shall be submitted to the Engineer for resolution before proceeding with the affected work. Chevron Washington Division trate: 4129/08 RE -VEGETATION OF DISTURBED AREAS PICEANCE NATURAL GAS DEVELOPMENT PROGRAM Doc. No. PBSR-ALLCIV-SPC-URS- 00000.00004.00 fiev: 0 Page: 4 of 10 1.5 Submittals 1.5.1 If requested by the Engineer, furnish an affidavit from each manufacturer or producer certifying that the materials or products delivered to the Project site meet the specified requirements. A. However, such certification shall not relieve the Subcontractor from the responsibility of complying with added requirements specified herein. 1.5.2 Furnish to Engineer, a signed statement certifying that the seed furnished is from a lot that has been tested by a recognized laboratory for seed testing, six months prior to date of delivery. A. Provide certification tags for the seeds. 1.6 Quality Assurance Qualifications: Work to be perforated shall be executed by a single firm who specializes and has full knowledge and experience in re -vegetating disturbed areas in Colorado using native species and who has satisfactorily performed work of this type on other projects of comparable size and scope as this Project. 1.7 Delivery, Storage, and Handling 1.7.1 Seed: Deliver each specified seed species to Project site in separate, sealed, original containers which show an analysis of the seed made by an approved authority. A. Seed shall be fresh stock and labeled in accordance with U.S. Department of Agriculture Rules and Regulations under the Federal Seed Act. B. Upon request of the Engineer or its designated representative, submit two copies of invoices showing type and quantity of seed materials. 1.7.2 Mulch (if used): Do not use old dry straw that breaks in the crimping process in lieu of bending. A. Such straw will not be accepted, and shall be removed from the Project site. B. All mulch shall be certified noxious weed free. 1.8 Warranty 1.8.1 Photographic documentation of the construction site is required to establish the baseline for the warranty. 1.8.2 Subcontractor shall continue to monitor the re -vegetated area and reseed areas as required until the conditions in B. are met. A. Warranty period shall commence upon acceptance of work by the Engineer. B. Warranty period shall end when the Engineer has determined that the vegetation density of the reseeded area has reached 70 percent of the original vegetation density. 1.8.3 Reseed all areas where there is not a satisfactory stand of native grass as determined by the Engineer. The length of the warranty period will vary by season and will be agreed to between Subcontractor and Engineer at the time of re -vegetation activities. Chevron LINO Washington Division ate: 4129108 ev: 0 RE -VEGETATION OF DISTURBED AREAS PICEANCE NATURAL GAS DEVELOPMENT PROGRAM Doc. No. PBSA-ALLCIV-SPC-URS- 00000-00004-00 Page: Sof 10 A. Process will be repeated until the stand of native grass over all areas designated for re - vegetation has met the 70 percent of original vegetation criterion. Reseeding shall be at the Subcontractor's expense. 2. PRODUCTS 2.1 Materials 2.1.1 Seed: Seed shall be in accordance with the seed mix identified in B. Seed and seed labels shall comply with all current state and federal regulations and shall be subject to the testing provisions of the association of official seed analysis. A. Provide fresh, clean, new -crop seed complying with the tolerance for purity and germination established by the Official Seed Analysts of North America. B. Provide seed of the grass species, proportions, and minimum percentages of purity, germination, and maximum percentage of weed seed specified as follows. Seed Mix for Sites below 7000 ft Scientific Name Seeds per pound Common Name/ Preferred Cultivar PLS/ ft2 % of mix by PLS weight Application Rate (lbs PLS/acre) Achnathernum hymenoides 140,000 Indian ricegrass/ Paloma* 4 12.5 1.25 Hesperostipa comata cornata 115,000 Needle and thread 4 15 1.5 Pascopyrum smithii 140,000 Western wheatgrassl Arriba* 10 31 3.1 , Pseudoroegneria spicata spicata 140,000 Bluebunch wheatgrass/ P7 10 31 3.1 Sitanion hystrix 192,000 Bottlebrush/squirreltail 4 10 0.90 Poa canbyl 925,000 Canby bluegrass/ Canbar 4 0.5 0.19 Total 36 100 1 10.04 Use only this cultivar, as recommended by Natural Resources Conservation Service and the Colorado Natural Heritage Program, 1998. Seed Mix for Sites above 7000 ft See Attachment 1, which describes seed mixes for three higher -elevation environments developed by the Bureau of Land Management Glenwood Springs Energy Office (memo dated April 16, 2007). C. Notify the Engineer in writing prior to seeding, for review of the following: • Seed mix to be used. • Percentage of purity and germination. • Pounds of pure live seed per pound of seed. • Selected method of seeding. Chevron Washington Division Date: 4/29/08 RE -VEGETATION OF DISTURBED AREAS PICEANCE NATURAL GAS DEVELOPMENT PROGRAM Doc. No. P0 00.00 04.00 i RS- 00000-00004-00 dd000.00004.Od 4ev: 0 Page: 6 01 10 D. Furnish seed free from noxious weeds. E. Do not use seed that has become wet, moldy or otherwise damaged in transit or in storage. F. Use only seeds from a lot tested by a recognized laboratory within six months prior to delivery. G. Seed purity, germination, and mixture proportions shall meet the requirements listed in B above. 2.1.2 Topsoil: Use nearby topsoil stockpiles that were set aside as part of the excavation. Areas with minimal topsoil may require the addition of mulch, A. See 3.2 and 3.3 for soli preparation requirements. 3. EXECUTION 3.1 General 3.1.1 Do not start preparation work until after all related site work within the areas to be revegetated, including site utilities, has been completed, tested, and backfilled to the satisfaction of the Contractor. The following general requirements apply: A. Seeding activities should be limited to cooler, wetter months (typically September through June) when conditions are favorable for germination, B. Fertilization is not required (promotes rapid weed growth), C. Do not seed when wind velocity exceeds five miles per hour, and D. Sow no less than the quantity of seed specified. 3.2 Seeding Methods for Slopes Less than 3% 3.2.1 Each species of seed shall be in separate bags so that each size group of seed can be metered at the appropriate rale. 3.2.2 Small seeds, such as canby bluegrass (Pea canbyl), can be difficult to apply at the small rates required. Use of wheat bran or rice hulls or other adjuvant to assist metering of the small seeds may be required, 3.2.3 Preferred Method: Multiple Seed Bin Rangeland Drill A. No soil preparation required other than simple grading to slope and waterbars at 50 -foot spacing. 3.2.4 Alternative Methods A. Broadcast seeding methods: Seeding rate must be doubled for broadcast application. 1. Harrow: Harrow with just enough soil moisture to create a rough surface; broadcast seed and re -harrow at 90' to first harrow. Chevron IWO Washington Division bate: 4/29/08 RE -VEGETATION OF DISTURBED AREAS PICEANCE NATURAL GAS DEVELOPMENT PROGRAM Doc. No, Pr3SR-ALLCIV-SPC•URS- 00000.00004.00 Flee: 0 Page: 7 ot 10 2. Hand raking and broadcast seeding followed by re -raking at a 90' angle to the first raking. B. Hydro -seeding C. Other methods as agreed to by Engineer. 3.2.5 Application Rates: A. See application rates in 2.1.1B. 3.3 Seeding Methods for Slopes Greater than 3% 3.3.1 Imprinting seedbed is required. A. Imprinting can be accomplished using dozer tracks or furrows perpendicular to the direction of the slope. B. When hydro -seeding, imprinting shall be conducted prior to seeding. C. Harrowing and broadcast seeding: imprinting shall be done as part of harrowing. D. Furrowing: obtain approval for method from Engineer. 3.3.2 If mulch will be crimped into the soil surface, imprinting is not required. 3.4 Mulching Mulching is not required for most methods. Temporary and permanent erosion control blankets may be used or straw can be crimped into soil during drill seeding. 3.5 Maintenance Maintain until the revegetated area has reached 70 percent of original vegetation density. 3.5.1 Begin maintenance of seeded areas immediately after each area is planted and continue until the Owners acceptance of the Project. 3.5.2 Maintain seeded by preventing erosion and replanting as required to meet the 70 percent ot original vegetation criterion. 3.5.3 Replant bare areas using the same materials specified above. 3.5.4 When maintenance is taken over by the Owner during the guarantee period, the Subcontractor shall periodically inspect the maintenance operation of the Owner. A. The Subcontractor shall promptly report to the Owner any methods, practices or operations which he considers unsatisfactory, not in accord with his interest or not in accord with good horticultural practices. B. Failure of Subcontractor to inspect and report shall be construed as an acceptance of Engineer operations. Washington Division Date: 4/29/08 RE -VEGETATION OF DISTURBED AREAS PICEANCE NATURAL GAS DEVELOPMENT PROGRAM Doc. No. PB$R-ALLCIV-SPC t1RS 00000.00004-00 f#ev: 0 Page: 8 of 10 1. No claims from the Subcontractor will be recognized thereafter should any defects develop later that are the result of such methods, practices or operations. 3.6 Workmanship 3.6.1 Perform all Work in a careful and orderly manner with due consideration for the protection of adjoining property. 3.62 Keep drainage structures clean during installation of Work. 3.7 Field Quality Control 3.7.1 Acceptance for Start of Maintenance: Notify the Contractor or its designated representative of completion of all seeding required. A. Review of seeded areas will be by the Contractor or its designated representative, and he will determine whether Work is acceptable and whether the maintenance period can begin. 3.7.2 Final Acceptance: Notify Contractor in writing of completion of the required maintenance. A. Within ten days of owner's notification, inspection for final acceptance will be made by a representative for the Contractor and the Subcontractor. B. For final acceptance the terms of the warranty must be met and the Project site shall be in acceptable clean condition. 3.8 Adjusting and Cleaning 3.8.1 Work is complete when the premises are clear of all rubbish, refuse and debris, leaving premises in a clean and orderly condition. 3.8.2 Repair damage done to property on or off premises by reason of required Work without additional cost to the Contractor. 3.9 Protection Restrict foot and vehicular traffic on seeded areas until the completion of the established period. Washington Division Attachment 1: Seed Mixes for Environments above 7000 ft Source: Bureau of Land Management, Glenwood Springs Energy Office, Memo, April 16. 2000 Table 1-2. Pinyon -Juniper Woodland androt- N[ountaln ll-yoming Big Sagebrush Sht-t bland Commas Name ate. 4/29/08 RE -VEGETATION OF DISTURBED AREAS PICEANCE NATURAL GAS DEVELOPMENT PROGRAM Doc. No PBSR ALLCIV SPC UFi& 00000-00004.00 Plant the Following (10% Total) ev: 0 Page: 9 of 10 Attachment 1: Seed Mixes for Environments above 7000 ft Source: Bureau of Land Management, Glenwood Springs Energy Office, Memo, April 16. 2000 Table 1-2. Pinyon -Juniper Woodland androt- N[ountaln ll-yoming Big Sagebrush Sht-t bland Commas Name Scientific lames Variety Season Forts PLS lbs4tcre' Plant the Following (10% Total) Ricearats lcloraroriurOr .op.r_ htmenordes Nezpar. Paloma. Rsntrock C'col BunchIndian 1.9 and Both of the Following (16% Each, 30 o, Total) Gallein Plow -aphis t(Hilariaj laulasii Viva floret. Wain' Bunch 2.5 Biuebuuch \-healgrass Pselraorocgncr is spicatn, dgrrap ro spicanur: Secar e Anatou Cool Bunch 2.8 and One of the Following (200A Total) Thicd•spihe :i'beatgrass Elynms lanceolarlr5 f,s lanceolatrrs, •� ro arou p rias! Bracht urn Critana. Schw-endtmar C.col Sod-rortutng 3.1 Slender Wheargrnss E!a•urus trach,rcaulrrs, Agrop}roJI n°ackicauiwn San Luis Cool Bunch -.- and Two of the Following (d0% Total) 3luttougrass Poa,terrdleiYana Cool Btuacb 0.6 Sandberg Bluegrass Poa sarrdbergrt, Poa sactaiia Cool Bunch 0.6 Bonlebtush Squnreltail Elpnus clywoidcs, Strararorr h srrix Cool Bunch -,.? *Based on 60 pure Ne seeds IPLS) per square foot, drill -seeded. Double this rare 1126 PLS per sprrare foot) if broadcast or Iudroseeded Chevron 41101 Washington Division Date: 4129108 RE -VEGETATION OF DISTURBED AREAS PICEANCE NATURAL GAS DEVELOPMENT PROGRAM Doc. No. PBSR-ALLCIV-SPC-URS- 00000-00004-00 _ new 0 Page: 10 of 10 Table 1-3. liked Mountain Shrubinnd, Including 0akbr•ush Common Name Scientific Names Variety Season Form PLS Ibstacre^ Plant Both of the Foliowing (201/2 Each, 400.,i Total) Tlricksptl:e +>rheatgtass Eft'mt+s lonccolcnts ssp lnnecolarns, Agthptro+t aasistachi ran Cirlann- Schw•endsmar Cool Sad•fornsina 3.3 Bluebuuch Wheatgrass Psnrtdoroegrrann sptcara,.dgroptron spfcorrnt Setae. P -J :knatone Cool Bunch 3.7 and One of the Following (204 Total) Bottlebrush Squirrelrail _1) was eltvtordos, .Stromlo,' blunts Cool Brtuch 2.7 Slender Wheatgrass El nuts nracitycaulus Agroprron naci;tcemlunr San Luis Cool Bunch 3.3 and One of rite Fo11owin; (20*o Total) Canby Bluegrass Pon cnnbss, P. serundn Canbar Cool Bunch 0.6 Mutton Bluegrass Poofo dlerrartn Cool Cool Bsnch 0.6 and One of the Following (104Ib Total) Letterman Needlegrass .zchnarltcts.ut (Sopa' lettotmn+ni Sod-forsniva Cool Bunch 1.7 Columbia Needlegrass .zchrtathotsa» (Snpaj nelsoufr, Snpn cofiunbrnrta Cool Bunch 1 7 and One of the Following (101 Torni) , Indian Ricegiass -1clutothersrm (O1) zopsrsj riyni order Nezpar. Paloma. Riau ock Cool Bunch 1 9 Junegrass Koalerso nuarran;ba, K cissrrra Cool Bunch 0 1 *Based on 60 pure Hee seeds IPLS) per square fool, drill -spaded, Double this rare (120 PLS per square foot) ff broadcast or hl droseeded, Table 1-4. Spruce -Fir Forest, Including Mountain Meadows Common Name Scientific Names Variety Season For in PLS Ibslacre Plant Both of the Following (201/2 Each, 40e5 Total) Mountain Brame Btnntopsis (3rotausj ntmgfnant. r Garnet Cool Branch 5,$ A Slender L['heatgress Etyma nnrlpecnlus .dgrop,s ton nrncf;tcaulinn San Luis Cool Bunch 3.3 and Three of the Following (209/2 Each, 601/6 Total) Letterman Needlegrass .4elntntherttnr (Sopa' leuerntnnn Ccol Bunch 3.5 Blue :l"ildty'e =IYwns glances Arlington Cool Bunch 4.8 Thiclspil a iirheaterass Eirntus lanraolatus ssp lmtceofatns, .4gr oprror, das)sracln um Ctitana, Schu;endunar Cool Sod -forming 3.4 Idaho Fescue Fesntca fdahoensis Joseph Cool Bunch 1.2 Wheeler Bluegrass Poo ',milord Cool Sod-forsniva 0.6 *Based on 60 pare fie reeds (RES/ per square fool, drill -sealed. Double this rate (110 PLS pe square foot) ff broadcarr or hrdroseeded Appendix B - Down -Hole Chemical List - Frac Operations MSDSProdrlc aMe; r u ' see/ 00- rbeescr" ft .... ;:.Ghrt�cai �Ill�i�iacttrfer , Clayfax II Material Additive, ammonium chloride, zirconium complex Halliburton 10% Hydrochloric acid Acid, inorganic acid Halliburton 7.5% Hydrochloric acid Acid, inorganic acid Halliburton 15% Hydrochloric acid Acid, inorganic acid Halliburton HAI -404M Corrosion inhibitor, chloromethylnaphthalene Halliburton Losurf - 300M Surfactant, 1,2, 4 Trimethylbezene Halliburton FR -56 Friction reducer, hydrotreated light petroleum distallate Halliburton GasPerm Surfactant, isoprpanol Halliburton BE -3 Biocide Halliburton BE -6 Biocide Halliburton oD = c N Ell 3 wo oO CD cri CO CD -4 Do-110) > xia=. N e 0 0 w V 0 Z CD • 0 Water -Based Mud Product Data Newpark iD:i1i Fluids, LLC Product Function Health Hazard FIallullabiliiy PPE Reactivity Symbol FlexFirm 4 sale s.bi =r 2 1 3 0 _ 1 lib Alum r.um Stearate 3e oame" _ 1 1 3 0 :5;4^ '; Iiii Caustic Soda Mia in ty 2_rwol 4 3 4 2 1< - Fiber L: :lra b!on slat2riq 1 3 3 0 ?:'l 4 ILirr�e Aka ire/ Ccrtol ; al:iu'n SaurcE 1 1 3 2 — ;rr DynaLose'_Y1=1udLess :_duper 1 3 2 0 t.;1 Dyna der L:S:'_ac:hd:Qn hY:aE 1 1 3 2 0 ') SAFP 7eFtxrt 1 3 2 0 6'',14 1 V New SPA FILid _as r d_cdan 2 1 3 3 2 3 0 0 641- 1 Nev.Ear .aeichtirgpater al 1?,r ' NeuiarE 1-25-50-:53 r'icr_n LCFt ; 7lucgi-a rrateial 1 3 3 0 t'r-i" Nev.Ease 203 1:crcty 1 1 2 0 : ' ;! Ili Nc Edge MTS' nit:alien Lcnbo. 1 3 3 0 ,0;71. 1 NeviFove FL.td L035 Cans:l 1 2 3 0 ', + ri+ NeuG_1 '+is:•_s€ie- 1 3 3 0 _ '<--e ii lib LT'Fah :ha e S 1 ure- 1 1_ 3 0 15-5- 1 lib NewPHPA Visc_ssfie- 2 1 3 0 'yJr" 1 Neu PAC. :Iu d Less :Awe 1 3 3 0 K. .3 16 Noroo ra DEfaa me - 1 1 2 0 'CI' 1 lib Flomar di c_sr*. 1 1 _ : !?�.yr^ ;I PPE d— Safety G:ssses, Fare Shield. Rubber Apra-: Rubber G o..es 3 — Safety 3lasses. Gloves, Respira1cr 1 Dust Mask 2— Safety Glasses. Gloves — Safety :lasses 0—Ione Health Hazard & Reactivity El— Ssevere 3— Saious 2 — Moderate 1— Sligh' C — TAirima Symbols Saf11y Glasses Rubber Gimes Resc':raior t Dust Ilesk Face Shield - Rubber! 3r:sn Chevron Storm Water Inspection Checklist Project Name Inspection Date Inspector Chevron Representative Pad _ COR- 037787 Jesse Kirkpatrick 970-683-1780 14 Day Site Type Permit Name Permit Date Inspection Type Pad _ COR- 037787 July 6, 2005 14 Day Field Name Work Completed Since Last Inspection Priority Comments Distance to Receiving Water Name of Receiving Water Type Estimated Runoff Coefficient Comment >2feet Best Management Practices Type Maintenance Required Date Maintenance Completed Comment Processing Eauinment # of Tanks # of Separators Freeboard in Secondary Containment Storm Water in Secondary Containment Comment >2feet No Other Equipment Type of Equipment Comment HousekeepinglSite Trash No issues. Materials Handling No issues. Spills or Leaks No issues. Vegetation Seed Mix Date Planted 70% Revegetated Comment Files Type of File Location Site Complies With Storm Water Standards (Yes or No Yes ViclnityyoMap Subject Site 25 -BV or PI -0.011(A Sheet Index Geotechnical Engineering Group, Inc. Drawings No. Narne Revision 1 Vicinity Map/Construction Sequence - 2 Well Pad Layout Plan - 3 Well Pad Cross Sections A, B - 4 Well Pad Cross Sections C, D - 5 Well Pacf Cross Sections E, F - 6 Fiowline Trench Plan - 7 Stormwater Management Plan - 8 Best Management Pratices - General Construction Sequence 1) Remove Existing tank, production facilities and buried piping. Protect existing well head to avoid disturbance. Solidify existing pit. 2) Remove /excavate and stockpile existing man made fill soils. Check solidified pit. 3) Construct toe key and key drain as applicable per evaluation of actual conditions by Geotechnical Engineering Group, Inc. engineer, 4) Construct general embankment earth fill and cut. Do not fill flow line trench areas above excavation bottom grade. Complete drill rig area grading to final grade with common embankment fill. 5) Instal! preliminary bore holes (rat holes). 6) Excavate cement treated zone. Separate and stockpile al! soils from cellar bay interior area (not cement treated). Prepare cellar bay excavation subgrade. 7) Place flowlines. Sackfr!! flow/Me trenches. 8) Construct/ erect cellar bay structure. 9) Place cement treated backlit!. 10) Install rock protection fence /structure. " JOS ILV2orscoT " TB Pr; JW AArc tenarzuO 1011912007 of 8 2,772 Norte Vicinity Map and Sheet Index Wel! Pad SKR 598 -25 -BV Chevron IvticiCon tin en t/Al osko SBLI Chevron North Americo EXplora'tion cared Production APPROVED FOR CONSTRUCTION Timothy J. Barrett nate: aorlrsuor Geotecenical d� AREPSTA10ili010x21. Engineering am."mcrooLCOLORA000 01503 1.100.o-wr0- roc ,s Group. Inc. CEOT1CHNICAL L STRUCTURAL CONSULTANTS LIMIT OF - CONST NOTION ,D RBANCE S WALE C27.e' 70' BUFFER 1 RECLAIM PILE P17-8- 6400 EXCESS 250' Po T.5.1 CUT 10' BUFFER LIQUID PIT clay 15" DEEP 14,11.54 SLOPES 06-11' 12.0' -EDGE OF EXISTING PAD 750 ,\\ 15.4' c Oe s?o O 090.00 90' r PRODUCTION FACILITIES , AREA la 02.3', LJ° Li f-1❑n L 1 14 n u n ROCK PROTECTION FENCE 725X., CAE CO, mountain management 500 I¢ rated. orequivaIent SWALE-. 1 P/PEjJ/y�r ' "a� 5 `47u4,, mss` 'AMAROONEXIST!NG ROAD ▪ • y SWALF- 80' C 17.9' La 0 F 106' h EXISTING 0E598-25-1 EL=6393' 1(1,9' 116'•7' Rp EX. BENK REMOOVED TRAILERS 30324 " 'da ^ Nov 05. 2007 p 4,1. Cr SIOf fit Tr - N4,';ui PROPOSEDF BANK ROAD POP OUT IX. l7DAD �./ 104 LE AREA 30' 0 60' Scale 1 Inch = 60 Peet T E Too / _ / 00 OQO/0 �� ...% I. TRANSITION ALL SLOPES FROM 7.5:1 TO I:1INNS ARE#. STA80JZE SLOPES AS SHOWN,SHEETS _.J Notes: 1) This plan was prepared based on dwg. drawing SKR-598-BV NPRIG ASB" provided by Construction Surveys Inc. in an e-mail dated 10/14/07.Transition fill slopes from 1.5:1 to 1:1 in this area. Stabilize slopes as needed. 2) Earthwork includes excess cut of 5,271 cubic yards. The Solids Pit volume is 9,576 cubic yards. The Liquids Pit volume is 1,063 cubic yards. The pad access route fill is 1,491 cubic yards 3) Former 25-1 Pad well head and underground piping shall be properly protected and production facilities, tank and pits shall be properly removed/abandoned prior to start of construction. Existing buried piping may not be accurately located 4) Existing fill shall be completely removed and replaced in a well compacted manner. (see sheet 4) on this plan. o ▪ JDS o T8 101102007 10/11,2007 2 of 8 Z772 1 Inch = 60 Feet 01110,1112 ar Jw 1011912007 Well Pad Layout Well Pad SKR 598 -25 -BV Chevron NATOContinent/AlosLco SBIJ Chevron North ,4m arioo Expl oro'tion and Production APPROVED FOR CONSTRUCTION Timothy J. Barrett 007E1 10242007 111 Geotechnical lIh,Enginoering 1�Graup, Inc. GEOTECHMCAL 6 2711Ci1IRAL CONSULTMRS 2..11.8 10004ME, 11701 rw,te- Mt MI, N5,1'0 Section O Scale :1-1 1 Inch=60 Feet V 1 Inch=20 Feet 6440' 6435' 6430' 6425' �, 6420' 6415'.92 � 6410' .. \ Existing ` _. 1 Topography ="-------' I _ �.. Cut S!o p I . I j eC Iners�ectio _ Son.... 8 n Cellar 8a Y A r , i• . A ° 6405' _ I rea - n Production 1.' Pit—' s Facilities ? 6400 H-Solids ----I ._ I I Pad Area ' 0. 6395 Rig I i Area . i Pad ElevaS 6390' Gn 6393 I Elevation 6,388'2" 6385' Elevation 6,382' 6" 1.5 ^ Cement i Fill Sldpe 6375' nrTeeated 1— \_ Flowline Trench 1.5 meat Treated -400 -300 -200 -100 0 100 200 300 400 Horizontal Distance in feet Section Scale : H 1 inch=60 Feets V 1 Inch=20 Feetp4 REG��• / ■g• f 6430' 6425' 6420' 6415, IS 6405, .. j sectl;on I .,.. . , _ Intersection. . ._ 1 .._ `Rig R .. . - i Pad - .. o 30324 _ .n o�Nov OS 2007 v t/ 10 -r...,,,,„,,„,..4:" AL �e �4, �!� `. 0 6400 I Area B . � i !Cellar B 1. aye. i_ 6 395' . rea w 6390' 1 / Elevat:o 1 ad n I�Elevatron 6;388'2" 6393 6385' 6380' 1 1 Cement 1 Treated Zone I 6375'_300 -200 -100 0 100 200 300 Horizontal Distance in feet ",, JDS 102170e7 sHmna 3 of $ aeo'°.. 2,772 I H: 1 hreht60 Feet V; 1 Inch=20 Feet ChevroT! • M i d C C.n t i n en -t/..4.1 a s IZ o SBU .-�sv',{_ �--"'7, s . C h e y r c, n N o r t h P. m rice 2�'Exploration and Production APPROVED FOR CONSTRUCTION Timothy J. Barrett Oars. lvzrannr n,r +OttL7POr Geotechnira! i�gu eenng wxcuow oo ^+. II Pm„n4,rd•:..+�,wr,.a Group, Inc. GCOTECHN1CALL & STRUCTURAL CONSULTANTS Well Pad Cross Sections A, B WeII Pad SKR 598-25-8V APPROVED JW +engappT 7'—n 16'--?" • 1.-10 Rnfl W74x145 Matting Ben11(Typical) Cement Stabilized Soil .40.++++++++++++iii:+;+�: ♦+++++♦ ♦++♦+♦++++++�+++�� Cellar Bay wiesNative Sal of Fig Compacted 4' 10" 11 __ o,. WELL PAO 25-8V M. ' NKM F) NRA •N 7R CT l • Al {I/OEL1NE$ 1) Native Soil Subqrade Compaction: After existing fill has been removed and the foundation for the fill has been cleared and scarified, It shall be disked or bladed until it is free from large clods, brought to the proper moisture content (within 2 percent above or below optimum) and compacted to not fess than 95 percent of maximum density as determined in accordance with ASTM D698. lfsoft/yielding subgrade conditions are encountered, stabilization may be required. 2) Embankment Fill Soils: Fill soils shall be free from vegetable matter or other deleterious substances and shall not contain rocks or lumps having a diameter greater than 6 inches. Fill materials shall be obtained from cut areas shown on the plans or slaked in the field by the Engineer. 3) Moisture Content: Fill materials shall be moisture treated to within 1 percent below to 3 percent above optimum moisture content as determined from Proctor compaction tests. The contractor may be required to add moisture to the excavation materials in the borrow area if, in the opinion of the Soils Engineer, itis not possible to obtain uniform moisture content by adding water on the fill surface. It may be necessary to moisture treat sails to a wetter condition and stockpile in order to allow soils to hydrate and slake, prior to fill placement. The contractor may be required to rake or disk the fill soils to provide uniform moisture content through the soils. Should too much water be added to any part of the fill, such that the material is too wet to permit the desired compaction from being obtained, rolling and alt work on that section of the fill shall be delayed until the material has been allowed to dry to the required moisture content The contactor will be permitted to rework wet material in an approved manner to hasten it's drying. a, -t,.. T-6" Section C ,4co3 7/4 fnchnt Fool Looking West Cellar Bay Section D Scab 1/41,30.111001 Looking Soon, Nation Sae cc Won Compacted FtN -. Cement Stabilized Soil 4) Compaction of Embankment Fill: Selected fill material shall be placed and mixed in evenly spread layers. Fill materials shall be placed such that the thickness of loose material does not exceed 10 inches and the compacted lift thickness does not exceed 6 inches. After each fill layer has been placed, it shall be uniformly compacted to not less than the specified percentage of maximum density. Fill shall be compacted to at least 95 percent of the maximum dry density as determined in accordance with ASTM D698. 5) Compaction of Slopes: Fill slopes shall be compacted by means of Sheepsfoot Rollers or other suitable equipment. Compaction operations shall be continued until Slopes are stable but not too dense for planting and there is no appreciable amount of loose soil on the slopes. Compaction of slopes maybe done progressively in increments of throe to five feet (3' - 5') in height or after the fill is brought to its total height. Permanent fill slopes shall not exceed 1.5:1 (Horizontal to vertical). 6) Cement Stabilized Soil: Cement stabilized soil shall be constructed after flow line installation. Cement stabilization shall be constructed in conformance with construction recommendations published by Geotechnical Engineering Group Inc. after actual backfill soils are ;dent/Ned. Bev. 6393' Elnv. 63811'2' JOS 77970/2007 °TB 17910/007 4 of 8 eta .oe Pea 2,772 1/4 Inch = 1 Feet APMW„A J,IfL' Ai e.Tr /114!1007 Wel! Pad Cross Sections C, D Well Pad SKR 598 -25 -BV Chevron M idCon tin ant/Alos4<v SBU Chevron North Am ar-iC.0 Explprcation and Production APPROVED FOR CONSTRUCTION Timothy J. Barrett DATE: 07/24007 Geotachnicaiw(0811,700.rnw:, ligineehng cR alxct.oncaLauoa e, a Group, Inc. GEOTECHNICAL 6 STRUCTURAL CONSULTANTS Elevation in feet Elevation in feet 6400' 6395' 6393' 6390' 6385' 6380' 6375' 6370' -30 6430' 6425' 6420' 6415' 6410' 6405' 6400' 6495' 6490' 6385' 6380' 6375' 6370' 6365' Section Scale: H 1 Inch=60 Feet V 1 lnch=20 Feet We!! Pad 1 • 6393 • Existin 1 -- Tdm creek Road 0 Horizontal Distance in feet Section ® Scale : H 1 Inch=10 Feet V 1 Inch=10 Feet 100 200 240 300 33' I ;20' i • Production Area 0393' it New Proposed Tom Creek Road Gengrid Steil Reinforce ent 1 -20 -10 0 10 20 30 Horizontal Distance in feet 40 400 Tensar BX1100 Geogrid,or equivelent, pinned and lapped (each interval) per manufacturers instructions; placed at 12 inch intervals and wrapped back into slope at outside edge where fill slope exeeds 1.5H:1.0V. Twenty (20) foot tie back top 8 feet. Thirty three (33) foot tie back below 8 foot depth. Geogrid must be installed in tension in all places. 'MENEM 11 r:tyr Jr" as shown JDS DA NE Y0(JN200T %7B .re 1013Tr2a0T srnua 5 of8 CPO Jcn Ari, 2,112 1 Inch = 20 Feet /. tt0YL0 Jw 76102007 Wel! Pad Cross Sections E, F Well Pad SKR 578 -25 -BV Chevron nnidContinent/AIcsP-z SB IJ Chevron North Amerce Exploration and Production APPROVED FOR CONSTRUCTION ome, 10/24/2007 Timothy J Barrett ,Geotechnical oo TTAFF AVFMWF. III�gineewna cw,rn �cw;,w.ccaowwo Group, • .W n>v14...3 GEoTECioecar.. et STRUCTURAL ConSULTANTI LIMIT OF CONSTRUCTION DISTURBANCE AIT& ExCES5 i T ! 0I 0 EXISTING SR598-25-i EL=6383' Production Manifold, Typical 0 L n I 177AAZATIO77j f J Edge of Trench, Typical ROCK PROTECTION _.__FENC` E1'IS77N PlPEU/!'E o•UGTfON / ��/ CILIYIES %/ REA SWALE SWALE 44f PROPOSED' ROAD POP OUT AREA 7GPOFBANK - EXISTING ROg0 70� ANx SWALE n 1/8 Illir44,d1 M1' ° 30324 -0 oNov O5, 1 2007 0° v.' 1?".% a ' ., • 400101 30' 0 60' Scale 1 Inch=60 Feet Legend 0 Indicates Towline Trench 10.: Notes: c. 1) Flowlines, air and electrical conduit shall be bedded in rounded sand, at least 6 inches encasement on all sides, prior to backfill. J % 2) Flowline trench shall be backfilled in a well compacted manner and in conformance with requirements Notes 3 and 4, Sheet 4. 3) Existing pad soils will be suitable for trench backfill. 4) Flowline construction shall be completed prior to cement stabilization, see sheet 4, note 6. JOS 10-20/7007 ""TB 'Are. 7AMN3007 6 of 8 2.772 1 Inch = 60 Feet APPROTED mJW DATE' 101190107 Flowline Trench Plan Well Pad SKR 598 -25 -BV Chevron MidContirlent/Alaska SBU Cl-ievron North Americo Exploration and Production APPROVED FOR CONSTRUCTION Timothy J. Barrett DATE.- 7024/3007 INvoSkIlo nue Geotechnical 7z° nnrnsrA r r✓E. �I Egineering UMW w„r„ .corawco saw, GroOA.rA�xs.o. PAA oral GFOTFCNNfOAL 0 STRUCTURAL CONSULTANTS LIMIT OF CONSTRUCTION DISTURBANCE Straw //EDGE OFAISTUR5ED (Th---6410 n4FATrP. a .lei v �� t ceoo cy e i -- SWALE.L7— I ROCK PROTECTION FENCE Straw Watt!e, Silt 1) ace (1) ( 1Wattle O O / PRODUCTION FACILITIES AREA jr•jt-Een S aw Wa SWALE >nrI e- 303241 �1c Nov 05, 2007 0 •� 1) (3) (2) 7 SWALE Silt Fermate Straw Wattle(3) STRAW WATRE(3) TTP. Si'. ROA • PROPOSED ROAD POP OUT AREA TOP OF 6ANK 6,30 30' 0 60' Stare 1 Inch = 00 Feet 0P°' Swale Legend: Indicates direction of stormwater flow; 0- 5% typical surface slope. 15 / Notes: J Storm water controls are numbered (Le. (1), (2), (3)) to indicate installation phase of construction for instalation; 1) indicates install prior to grading. 2) indicates install upon achieving top of pad elevation. 3) indicates install immediately after top of pad grading. 3) indicates install immediately after top of pad grading. " JOS a. TB a.m TV/7Eno0T G"4 Kalb. SCALP 7 of 8 2,772 1 Inch = 60 Feet APPROVED PP JW rurn 10/1912007 Stormwater Management Plan Well Pad SKR 598 -25 -BV Chevron NAidCpntin at/Aloskc seu North Ann erica Exploration cad Production APPROVED FOR CONSTRUCTION Timothy .1. Barrett ORIF: 10rs43OG1 InnI,P1.1 no, IT Geotechnical ism arrrnsrart-AW AR ing WADxwenoN, C -01.0.00o also C-01.0.00il,EngineerGroup. Inc, (f1 N}IWt• car nal M.n, GEOTECHNICAL 3 STRUCTURAL. CONSULTANTS 6" STRAW GEOTEXT!LE SOCK 2X2 WOOD POST BEST MANAGEMENT PRACTICES (BMP's) 6' MAX STRAW a a :'•1.a.•:•'•`• :1 • .• Pr• ,•, !a•••`•«t �:.ti,« i• :!i g i ���•••:":!:•.!a a"•;r••!a a°a•«:•,a a:•f«=,, •.•iriy:�:•V:yea«ti:•Pr�«�«��«.i:iy�.•••:�d .... . ry� •�.. :•:•�:4 •:••••:••:``:aaw yrSn�.�ya�a'.�a�: .•i`.dr r�. •� 6" v .. GEOTF_XTILE SOCK POST (2X2 WOOD POST) @ 10'-00" MAX 2'-3" 3,-9" Straw Wattle SILT FENCE FABRIC ANCHORED IN TRENCH AND STAPLED TO POST 6X6" TRENCH FLOW 1'-6" COMPACTED BACKFILL 2X2 WOOD POST TYP. /TIE ENDS W/ WIRE 3, Silt Fence Swale --2"MIN, r SURFACE SLOPE 1/4" PER 1' MIN. LEGEND: SILT FENCE DIRECTION OF FLOW CLEAR CREEK 8" PIPELINE STRAW WATTLE SWALE CONSTRUCTION PHASING (SEE SHEETS) °" JDS 164 f-2007 ° TB a.rr f0-2420 7 8 of 2,805 1 Inch = 20 Feet M 5oveo Jw nn 10252007 Stonnwater Managment Plan Well Pad SKR 598 -25 -BV Best Management Practices Chevron midContinant/Aloskc SSU Te Chevron North Americo It0Exploration and Production APPROVED FOR CONSTRUCTION a.m. 10/24/2007 Timothy J. Barrett 111111Geotechnicol so. Sn.AsmAar n.e"LE. ��,Graup, Inc. Engineanng GAMY AuAern".00SCRAD" 5-1505 7171/ NS. W.. IW x.5-7115 GEOTECHNICAL 6 STRUCTURAL CONSULTANTS FOR OFFICIAL USE ONLY: DISCLOSURE OF SITE LOCATIONS IS PROHIBITED (43 CFR 7.18) Class III Cultural Resource Inventory Report for a Proposed Utility Corridor in Garfield County, Colorado, for Chevron North America Exploration and Production BLM Ref. #1108-12 GRI Project No. 2878 3 September 2008 Prepared by Carl E. Conner, Principal Investigator Nicole Darnell and Barbara J. Davenport Grand River Institute P.O. Box 3543 Grand Junction, Colorado 81502 BLM Antiquities Permit No. C-52775 Submitted to Grand Junction Field Office Bureau of Land Management 2815 H Road Grand Junction, CO 81506 Abstract At the request of Chevron North America Exploration and Production (Chevron), a Class III cultural resource inventory of a proposed utility corridor in Garfield County was conducted by Grand River Institute. The project area involved Bureau of Land Management (BLM) administered and private lands located along Clear Creek north of Debeque, Colorado. The inventory and report preparation were conducted by Carl Conner (Principal Investigator), Travis Archuleta, Jim Conner, Nicole Darnell, and Barbara Davenport of Grand River Institute under BLM Antiquities Permit No. C-52775. As a result, a total of 65 acres (BLM 14, private 51) were subjected to intensive inventory during this project. Field work was performed on 25 August 2008. The Class III inventory was undertaken to ensure the project's compliance with federal laws and regulations governing the identification and protection of cultural resources. This work was performed under BLM Antiquities Permit No. C-52775. The purposes of this investigation were to identify resources within the previously unsurveyed areas likely to be affected by the proposed action, to assess the impact to previously recorded sites, to evaluate these sites' eligibility for listing in the National Register of Historic Places, and to make management recommendations for those sites found to be eligible. Files searches for known cultural resources in the project area were made through the BLM and the Office of Archaeology and Historic Preservation of the Colorado Historical Society. This review identified one historic site, 5GF665 that was previously recorded within the study area. As a result of the Class III inventory, previously recorded site 5GF665 was revisited and re-evaluated. Additionally, one historic site 5GF4224.1, the Clear Creek Road was newly documented. Both of the cultural resources considered by this project were field evaluated as not eligible for listing on the National Register of Historic Places. Accordingly, a determination of "no effect" for the project is recommended pursuant to Section 106 of the National Historic Preservation Ace (36 CFR 800). No further work is recommended. ii Table of Contents Introduction 1 Location of the Project Area 1 Environment 1 Field Methods 2 Summary of Files Search 3 Study Objectives 5 Results 5 Site Significance 5 Resource Descriptions . 6 Discussion 7 Summary of Site Evaluation and Recommendations 8 References 9 Appendix A: Cultural Resources Location Data A.1 List of Figures and Tables Plates Figure 1. Project location map v Figure A-1. Resource location map A.3 Table 1. List of Previously Conducted Survey Projects within or near the project area Table A-1. Location data for recorded sites. A.2 iii CID Isolated Finds Colorado Office of Archaeology and Historic Preservation CULTURAL RESOURCE SURVEY MANAGEMENT INFORMATION Please complete this form and attach a copy behind the Table of Contents of each survey report. Project Class III cultural resource inventory of a proposed utility corridor in Garfield County, Colorado, for Chevron North America Exploration and Production [GRI Project No. 2878, 09/03/2008] Acres of Potential Effect/Project: <5 Class III Acres Surveyed: 65 acres (BLM 14, private 51) Legal Location of Project (add additional pages if necessary) P. M.: 6th Quad map date(s): 1971 Quad Map Names: Desert Gulch Township: 5 South Range: 98 West Section 21 and 22 Smithsonian Number Resource Type Eligibility Management Recommendation 0 0 Paleontological 0 au w z Need Data No Further Work u N a 0 C O E2 0 A Archival Research Other (specify) 5GF665 X X X 5GF4224.1 X X X L Total Sites 2 2 2 Total Isolated 0 Principal Investigator Name: Carl E. Conner Signature: Com;/r, 6,1� Date: 09/03/2008 723000 724000 725000 726000 co C v Desert Composite Quadrangle Map Gulch (1971) and Mount Blaine (1971) Garfield County, Colorado ArcMap GIS DRG from USGS 7.5 minute series (topographic) Scale: 1:24,000 Contour Interval: 40 feet T. 5 S., R. 98 W., 6th P.M. 11 NAD83• Zone 12 �;p. -1-0 ------ .,-:1`, n iI f`.'' C L,. f .t ' �; ,1 ' - 4 t r'r ° f 2l y i, i Gran . L ' .r f'} yry y .. } 5 `, t ' - I F: ri IUnctiOn L hlfe f ivkr '1c ®ffte M Fiittd"0 % r •at 1 tti , - f' 1 .1: , ' I, ' :I' 1 �, fit e i .L q' f r=,1e { ( ''�� Jl i r• , r /r •ll" 1 /p r.-',; , c'. -�i •' 1 ',.. s, ' ; J £ i�f�'--�h � J-� e r ;, f: ma , . t ,� L,. 8. '}' 4_ . il 1 1‘,,,,1- )� fly � I - ��i 'ir'L £-!. y 4 -•� 1 I f4`�1-=-L.--,- / i k1('' r i ;the.: ` '- ,6 S } I,1 , /'�� ts 0,.. a�y� ) .r1 J 1 �3 �.a, S y Z f 8Q !r r df ° {� ate. • 1, i., �'J . �. a R .m k{jf Y _•f 3Y r lj^ 7 1 ler ii ° ���j �. {Fr ' r y�✓ r t r r �f ,�A p-°, , 11 Mfr's s err i A /i i S 3 Ef r fir^ Jr ! t - % 4I. l'• ] TL�. tJ ,.I �. s€'4 ,k t `-: tilt°c� ill 7 : Fr f, ,,4 t i '� \ .•. x7951 t I�r -4 } 5! - 1 / k 1 �� %`. / -. r tF; \ f�•fi q rY NN f �F i' `. l• 1 • r �� M � , .' .r.1', i �' �r+� ` `•-,\\:;:i;.' S� Y r. -v,•-1 p jr �4 F``r �Ett F f -t 'i.,1;.• fir' r fl 1� L '{ �, ft � 111' +j7 i r ` Skr.� "' • ` .` - \ s j. r y( f, f{n 47 T < g } ; ✓ r�.!if.� l si.° ,,,LLL'till j_ L 1 r jf 'ti �ryy / t, r � (k -' Z" e 11 •rlii j i f`yit. \ t i ! r✓r ..� 1 ..0 1=tri 4 r' r ,.- 5hj 5'lk €� _'' ;, �;5� ` 4 i . f r .r __.. ti -fie fi,- v. n. 1' r r,F.' .. .i ti• e. .t -1. ` �. r�L - :-..ft -.ef.:Y •V.'''%il..<I J'.st420/i r -w: r. co 723000 - 724000 725000 726000 Figure 1. Project location map for the Class III cultural resource inventory report for a proposed utility corridor (65 acres) in Garfield County, Colorado for Chevron North America. Area surveyed for cultural resources is indicated. [GRI Project #2878, August 2008] O co co O O O 3 Introduction At the request of Chevron North America Exploration and Production (Chevron), a Class III cultural resource inventory of a proposed utility corridor in Garfield County was conducted by Grand River Institute. The project area involved Bureau of Land Management (BLM) administered and private lands located along Clear Creek north of Debeque, Colorado. The inventory and report preparation were conducted by Carl Conner (Principal Investigator), Travis Archuleta, Jim Conner, Nicole Darnell, and Barbara Davenport of Grand River Institute under BLM Antiquities Permit No. C-52775. As a result, a total of 65 acres (BLM 14, private 51) were subjected to intensive inventory during this project. A files search was conducted on 22 August 2008 and field work was performed on August 25`x'. This work was done to meet requirements of the National Environmental Policy Act (NEPA) of 1969 (42 U.S.C. 4321), the Federal Land Policy and Management Act of 1976 (43 U.S.C. 1701), and the Archaeological Resources Protection Act of 1979 (U.S.C. 470aa et seq., as amended). These laws are concerned with the identification, evaluation, and protection of fragile, non-renewable evidences of human activity, occupation and endeavor reflected in districts, sites, structures, artifacts, objects, ruins, works of art, architecture, and natural features that were of importance in human events. Such resources tend to be localized and highly sensitive to disturbance. Location of the Project Area The project area is located on both sides of the Clear Creek road within Garfield County, Colorado. In general, the block area is located in T. 5 S., R. 98 W., Sections 21 and 22; 6th P.M. (Figure 1). Environment The proposed project is within the Piceance Creek Basin, one of the major geologic subdivisions of Colorado. The Piceance Creek Basin is an elongate structural downwarp of the Colorado PIateau province that apparently began its subsidence approximately 70 million years ago during the Laramide Orogeny. Sediments from surrounding highlands were deposited in the basin, accumulating to a thickness of as much as 9000 feet by the lower Eocene epoch, when subsidence ceased. Regional uplift occurred in the Late Tertiary, and erosion of the area has continued since (Young and Young 1977:43-46). The Wasatch formation underlies the study area. It consists of a series of interbedded variegated mudstones, sandstones, and siltstones of varying colors --brick red, tan, white, and purple. Forming after a period of erosion, the Wasatch is the first extensive continental 1 deposit following those of the Cretaceous -age Mesaverde Group. Sediments are stream, floodplain, and swamp deposits. To the east, where the formation is thicker, its age ranges from the Paleocene (53ma) to middle Eocene (47ma) epochs of the Tertiary periods. The types of fossils found in the Wasatch suggest a moist tropical to subtropical environment existed here. Crocodiles, turtles, early primates, and a myriad of browsing fauna indicate a relatively warm, lush environment similar to that found in southern Florida today. Sediments were deposited as areas surrounding the basin were uplifted. Streams drained into the basin but did not cut a channel through the basin boundaries. As a result, there was internal drainage where all the sediments from the surrounding highlands were deposited in the basin rather than being carried away by a major river (Armstrong and Kihm 1980:48). The project area rests at the base of the Roan Cliffs. The topography is valley bottom on the southwest and northeast sides of Clear Creek. Elevation averages about 6320 feet. Vegetation communities include sagebrush/grasslands, pinyon juniper woodlands, and riparian along the Creek. Ground visibility ranged from 10% in the sagebrush, greasewood and oakbrush to about 80% in the disturbed areas along the county road. These communities support a variety of wildlife species although the present day land use of the project area (including energy development, grazing, ranching and farming) has pushed most large mammals into the surrounding mountains. There, mule deer, elk, coyote, and black bear are common, as are cottontail rabbits, beavers, and various rodents. Mountain lion, bobcat, fox, skunk, badger, and weasel are also likely inhabitants. Bird species observed in the area include the jay, raven, red -shafted flicker, long-eared owl, and various raptors. There is little climate variation within the study area. These relatively low elevations are host to a cool semiarid climate where temperatures can drop to -10 degrees F during the winters and summer temperatures may reach 100 degrees F; there is a maximum of 140 frost free days and the annual precipitation is about 10 inches. The surrounding higher elevations are characterized as cooler and moister. Annually, the high mountain temperatures could average 5 degrees cooler and the precipitation as much as 14 inches greater that the surrounding low elevations (USDA SCS 1978:244). Field Methods A Class III, 100% pedestrian, cultural resources survey of the block area was conducted by two archaeologists walking zig zag parallel transects spaced at approximately 15 meter intervals. The survey was limited by heavy vegetation. Crew members worked from USGS 7.5 minute series maps. Cultural resources were sought as surface exposures and were characterized as sites or isolated finds. A site is the locus of previous human activity (50 year minimum) at which the preponderance of evidence suggests either a one-time use or repeated use overtime, or multiple classes of activities. For example: a) Isolated thermal feature such as hearths are to be designated as sites, due to the interpretable function of such utilization and the potential 2 for chronometric and economic data recovery, b) Single element rock art panels are to be designated as sites due to the interpretable nature of such an event and the potential diagnostic value of the motive, c) Similarly, isolated human burials are to be designated as sites, or d) Loci exhibiting ground stone and flake stone in association. An isolate refers to one or more culturally modified objects not found in the context of a site as defined above. Note that this definition makes no reference to an absolute quantitative standard for the site/isolate distinction. For example: a) A discrete concentration of flakes from the same material regardless of the number of artifacts present likely represents a single, random event and is properly designated as in isolate, or b) Similarly, a ceramic pot bust is to be recorded as an isolate, regardless of the number of sherds that remain. All cultural resources that qualify as sites, such as prehistoric open camps, lithic scatters, occupied overhangs/rockshelters, and evidence of historic occupation, were recorded as they were encountered to standards set by the BLM and the SHPO. These were then evaluated for determining eligibility for nomination to the National Register of Historic Places (NRIIP). Sites were recorded using the following methods of mapping and note taking. The basic approach to the data collection was the continuous mapping of observed artifacts and features by recording UTM coordinates (NAD 83 Datum) using a Trimble Geo XT. Site maps were created using corrected GPS data and ARCMAP. Photographs were taken at each site and included general views and specific artifacts or features. Field notes and photo negatives for this project are on file at Grand River Institute, while the photographs are submitted to the BLM. No artifacts were collected. Summary of Files Search and Literature Overview Records searches for the project area were conducted through the Preservation Office of the Colorado Historical Society (Compass website) and at the BLM on 22 August 2008. In addition, GLO Plats were checked for evidence of trails, buildings, irrigations systems, and other historic properties. This review identified one historic site, 5GF665 that was previously recorded within the study area and indicated that no other sites have been previously recorded within approximately mile. The table below lists the previous projects that have been conducted within or near the project area that were located as a result of the files research. 3 Table I. List of previous cultural resource inventories within or near the project area. Project # Title/Author/Date/Contractor GF.PA.R9 Title: Cultural Resources Inventory Baseline Report Clear Creek Property, Garfield County, Colorado Author: La Point, Halcyon, Bryan Aivazian, and Sherry Smith Date: 10/01/1981 Contractor: Laboratory of Public Archeology for Environmental Research & Technology, Inc. and Chevron Shale Oil Company GF.LM.R273 Title: Archaeological Survey of Three Seis Pros Seismic Lines, Garfield County, Colorado Author: Hartley, John D. and John P. Sullivan Date: 09/06/1984 Contractor: Grand River Consultants, Inc. for Seis Pros Inc. and the Bureau of Land Management GF.LM.SP Title: Seis Pro Seismic Lines Author: Hartley John D; Sullivan John P Date: 09/01/1984 Contractor: Grand R Consultants GF.LM.R252 Title: A Class III Cultural Resource Inventory of the Dawson Geophysical Trail Ridge 2-D Seismic Project (Original and Addendum) Author: Frizell, Jon P., Jeffery Derks, and Elizabeth Frizell Date: 08/27/2003 Contractor: North Platte Archaeological Services for Dawson Geophysical and the Bureau of Land Management Local and regional archaeological studies suggest nearly continuous human occupation of west -central Colorado for the past 12,000 years. Manifestations of the Paleoindian Era, big -game hunting peoples (ca. 11,500 - 6400 BC); the Archaic Era hunter/gatherer groups (ca. 6500 - 400 BC); the Formative Era horticulturalist/forager cultures (ca. 400 BC- AD 1300); the Protohistoric Era pre -horse hunter/gatherers (Early Nutnic, ca. AD 1300 - AD 1650) and early historic horse -riding nomads (Late Numic, ca. AD 1650 - AD 1881). An overview of the prehistory of the region is provided in documents published by the Colorado Council of Professional Archaeologists' entitled Colorado Prehistory: A Context for the Northern Colorado Plateau (Reed and Metcalf 1999). Euro - American exploration and settlement of the of the region are presented in the Colorado Historical Society's publication entitled Colorado PIateau Country Historic Context (Husband 1984) and in the BLM publication Frontier in Transition (O'Rourke 1980). 4 Study Objectives A Class 111 study provides an inventory to identify cultural resources within the previously unsurveyed areas likely to have been and to be adversely affected by proposed energy related construction, to evaluate these sites' eligibility for listing in the NRNP, and to make management recommendations for those sites found to be eligible. Results As expected, cultural resource were encountered within the intensive inventory areas. From the files search data, the USGS maps and the present Class 111 survey, one previously recorded historic site was revisited and one new historic site was located within the proposed project boundary. This portion of the report presents a discussion of site significance evaluation and describes the sites and provides their previous evaluations and their proposed management recommendations. Detailed location information, including site forms and maps, can be found in Appendix A. Site Significance The National Historic Preservation Act of 1966 (NHPA) directs the BLM to ensure that BLM-initiated or authorized actions do not inadvertently disturb or destroy significant cultural resource values. Significance is a quality of cultural resource properties that qualifies them for inclusion in the NRHP. The statements of significance included in this report are field assessments to support recommendations to the BLM and State Historic Preservation Officer (SHPO). The final determination of site significance is made by the BLM in consultation with the SHPO and the Keeper of the Register. The Code of Federal Regulations was used as a guide for the in -field site evaluations. Titles 36 CFR 50, 36 CFR 800, and 36 CFR 64 are concerned with the concepts of significance and (possible) historic value of cultural resources. Titles 36 CFR 65 and 36 CFR 66 provide standards for the conduct of significant and scientific data recovery activities. Finally, Title 36 CFR 60.4 establishes the measure of significance that is critical to the determination of a site's NRHP eligibility, which is used to assess a site's research potential: The quality of significance in American history, architecture, archaeology, and culture is present in districts, sites, buildings, structures, and objects of State and local importance that possess integrity of location, design, setting, materials, workmanship, feeling, and association, and a) that are associated with events that have made a significant contribution to the broad patterns of history; or b) that are associated with the lives of persons significant in our past; or c) that embody the distinctive characteristics of a type, period, or method of construction, or that represent the work of a master, or that possess high artistic values, or that represent a significant and distinguishable entity whose components may lack 5 individual distinction; or d) that have yielded, or may be likely to yield, information important in the prehistory or history. Resource Descriptions Site 5GF665, an historic homestead, was originally recorded by James R. Goodson with the Laboratory of Public Archaeology on 19 October 1980. It is located on the southwest side of Clear Creek near Sheep Gulch at an approximate elevation of 6280 feet. Vegetation consists of oakbrush, sagebrush, Canadian thistle, and other wild flowers and riparian flora. Soils are a brown loam of an undetermined depth. The site was originally described as follows: Cabin has collapsed due to neglect. Structure is cottonwood logs with square overlapped notching. Door is offset to one end of a wall and a single window is located on one of the site walls. Roof is gabled with log rafters and ridges with plank roofing. A wire and pole corral is located 23 meters southeast of the cabin. At least one log level of the structure has been buried in alluvium/colluvium. It is possible there may be a buried living floor inside, or features outside. The current project revisited the site to map and confirm its location, photograph, and examine the remains. The site appears to be in the same condition as previously reported. The cabin structure measures approximately 20.5 x 17 x 6 feet. Further deterioration has occurred due to continued neglect and the cabin is in ruins. The logs used to build the structure appear to have vertical splits and are rotting in places. The remnants of a stove were found, but maker's marks were not present and its age could not be readily determined. Evaluation and Management Recommendations: The site was originally field evaluated as need data. The current project has field re- evaluated the site as not eligible for Iisting on the National Register of Historic Places. This determination was reached by assessing the site in terms of integrity as defined by the State Historic Preservation Office wherein a resource that retains its integrity will possess several and usually most, of the seven aspects of integrity (location, setting, design, materials, workmanship, feeling, and association). The resource is deteriorated and does not retain sufficient integrity to reflect its original character. There is nothing significant regarding the site's setting or location. The materials, design and workmanship are vernacular and are not unique or remarkable examples of western ranch buildings. In terms of integrity of feeling and association, no historic homestead information is on record for the site's location and it could not be linked to historical significant figures. No further work is recommended. Site 5GF4224.1, the Clear Creek Road, is located along Clear Creek in Garfield County, north of Parachute. Elevation ranges between 5600 and 6600 feet. Vegetation is 6 variable, consisting of riparian vegetation in the bottom of Clear Creek and pinyon, juniper, and sagebrush on the surrounding hill slopes. Soils are, in general, light tan sandy loam deposited by alluvial and colluvial actions. The road is approximately 13 miles in length, and appears to begin at the point where Willow Creek merges with Clear Creek and terminates at Clear Creek's convergence with Roan Creek. A search of Governrnent Land Office records indicated that the original road was in place as early as 1884 as an unnamed trail (C. Alex Trease, surveyor). At that time Clear Creek was referred to as a "branch of the Roan Creek." By Addison Teller's surveys in 1923, the Creek had been designated "Clear Creek" and the trail was in use as a road, although it appears to have been named the "North Fork Road." It has since been upgraded into a two-lane graveled road that is maintained regularly and typically traveled by Chevron truck traffic. The entirety of the road has been recorded, photographed and mapped. Evaluation and Recommendation The road is field evaluated as not eligible for listing on the National Register of Historic Places. This determination was reached by assessing the site in terms of integrity as defined by the State Historic Preservation Office wherein a resource that retains its integrity will possess several and usually most, of the seven aspects of integrity (location, setting, design, materials, workmanship, feeling, and association). There is nothing significant about the road in terms of these seven aspects of integrity and it is not likely to yield additional important historical information. No further work is recommended. Discussion This project has provided an opportunity to continue the investigations into the Clear Creek Valley. One previously recorded historic site was revisited and one new historic site was recorded. Previous archaeological studies in the general vicinity have suggested regional occupation for as long as 8000 years, although recently an inventory of block units south east of this study area within the South Parachute GAP (Conner et al. 2006) provided direct evidence of the presence of Foothill -Mountain Paleoindian occupation at 5GF1323, which pushes the regional prehistoric occupation dates back to about 10,000 yr BP. The majority of the finds in the general area still remain primarily from the Late Archaic, Formative (Fremont), and Numic (Ute) Eras. Many of the previously recorded resources in the region indicate that this area was intensively occupied during the Protohistoric Era. Additional inventories in the immediate vicinity support this finding. Unfortunately for many of the sites where wickiups were present, post -cutting and wood collection by the Historic EuroAmerican settlers and ranchers over the past 125 years has nearly wiped out evidence of their presence. Also, surface collection of diagnostic artifacts has impacted the sites and affected the assignment of cultural/temporal associations. 7 Interest in the potential agricultural lands of western Colorado (namely the Colorado, Dolores, Gunnison, La Plata, San Miguel, Uncompahgre, and White River valleys) had been growing for some time prior to the Utes' banishment, and by the spring of 1881 frontier towns closest to the Ute lands were "crowded with people, anxious to enter the Reservation and take possession of the most desirable locations." (Haskell 1886:2). Only days after the last of the Utes had been expelled, settlers began rushing onto the reservation lands. Settlement activity spread quickly --during the autumn months of 1881 land claims were staked, town sites were chosen, and railroad routes were surveyed (Haskell 1886; Borland 1952). However, the former reservation lands were not officially declared public lands until 10 August 1882. Although the recently ceded lands were technically open to settlement, applications for land patents under the Homestead Act of 1862 (under which Cash Entry patents were issued) and the Desert Land Act of 1877 could not be acted upon until the government had surveyed the lands. The 1882 declaration did not allow homestead entries on the newly opened lands, but only preemptions, or Cash Entries (Borland 1952:75). Under the Homestead Act, title to 160 acres of public domain could be obtained through continuous residence on the Iand and making improvements to it over a five-year period; under a Cash Entry claim, the residency requirement was reduced to six months and a per -acre charge of 81.25 was assessed. All of the early (1890s) land patents in and around the study area were Cash Entries. The turn of the century brought changes in patenting policy; not only Cash Entry claims but Homestead and Desert Land Entries were approved as well. Summary of Site Evaluations and Recommendations The eligibility determination and consultation process is guided by Section 106 of the NHPA (36 CFR 60, 63, and 800). Inventory to identify, evaluate, and mitigate potential effects to cultural resources affected by an undertaking is the first step in the Section 106 process. BLM actions cannot be authorized until the Section 106 process is completed (36 CFR 800.3). Final determinations of National Register eligibility and effect are sought from the controlling federal agencies in consultation with the State Historic Preservation Officer (SHPO) and the Advisory Council on Historic Preservation. The American Indian Religious Freedom Act of 1979 (AIRFA) and amendments to National Historic Preservation Act require a determination of site's eligibility according to their classification as sacred sites by regional Tribes, and/or their location within traditional use areas. Presently, BLM archaeologists are conducting consultations with the tribes. As directed by the new 36 CFR800 regulations, this inventory included the search for relevant traditional cultural properties. None were found. As a result of the Class III inventory, previously recorded site 5GF665 was revisited and re-evaluated. Additionally, one historic site 5GF4224.1, the Clear Creek Road was 8 newly documented. Both of the cultural resources considered by this project were field evaluated as not eligible for listing on the National Register of Historic Places. Accordingly, a determination of "no effect" for the project is recommended pursuant to Section 106 of the National Historic Preservation Ace (36 CFR 800). No further work is recommended. References Armstrong, Harley J. and Allen J. Kihm 1980 Fossil vertebrates of the Grand Junction Area. Ms on file at the Bureau of Land Management Grand Junction Field Office. Husband, Michael B. 1984 Colorado Plateau Country Historic Context. Colorado Historical Society, Denver. O'Rourke, Paul M. 1980 Frontier in Transition. Bureau of Land Management Cultural Resources Series Number Ten. Colorado State Office, Denver. Reed, Alan P. and Michael D. Metcalf 1999 Colorado Prehistory: A Context for the Northern Colorado Plateau. Colorado Council of Professional Archaeologists, Boulder. U.S.D.A., Soil Conservation Service 1978 Soil Survey of Mesa County Area, Colorado. Young, Robert G. and Joann W. 1977 Colorado West, Land of Geology and Wildflowers. Wheelwright Press, Ltd. 9 CLASS III CULTURAL RESOURCE INVENTORY REPORT FOR THE PROPOSED UPPER CLEAR CREEK UTILITY CORRIDOR BLOCK AREA IN GARFIELD COUNTY, COLORADO, FOR CHEVRON NORTH AMERICA EXPLORATION AND PRODUCTION Carl E. Conner James C. Miller Dakota N. Smith Barbara Davenport November 6, 2008 4 Grand River Institute 4. Class III Cultural Resource Inventory Report for the Proposed Upper Clear Creek Utility Corridor Block Area in Garfield County, Colorado, for Chevron North America Exploration and Production GRI Project No. 2895 6 November 2008 Prepared by Carl E. Conner, Principal Investigator James C. Miller, Dakota N. Smith, and Barbara J. Davenport Grand River Institute P.O. Box 3543 Grand Junction, Colorado 81502 BLM Antiquities Permit No. C-52775 Submitted to Colorado State Historical Society Office of Archaeology & Historic Preservation 1300 Broadway Denver Colorado 80203 Abstract At the request of Chevron North America Exploration and Production (Chevron), a Class III cultural resource inventory of a proposed utility corridor in Garfield County was conducted by Grand River Institute. The project area involved private lands located along Clear Creek north of Debeque, Colorado. The inventory and report preparation were conducted by Carl Conner (Principal Investigator), James C. Miller, Dakota Smith, Travis Archuleta, Jim Conner, Dana Archuleta, and Barbara Davenport of Grand River Institute under BLM Antiquities Permit No. C-52775. As a result, a total of 900 acres of private land was subjected to intensive inventory during this project. Field work was performed between the 7`" and 23`d of October 2008. The Class III inventory was undertaken to identify resources within the project area, to evaluate these sites' eligibility for listing in the National Register of Historic PIaces, and to make management recommendations for those sites determined eligible. A file search for this project was made through the Colorado Historical Society Compass website. Also, Government Land Office maps were reviewed. Neither indicated that previously recorded resources occurred in the project area. As a result of the Class III inventory, site 5GF4293, an historic corral and bridge, and 5GF4294, an isolated find of a prehistoric bison tibia butchering tool, were newly recorded. Both of the cultural resources documented by this project were field evaluated as not eligible for listing on the National Register of Historic Places. Accordingly, a determination of "no effect" for the project is recommended pursuant to Section 106 of the National Historic Preservation Ace (36 CFR 800). No further work is recommended. iii Table of Contents Introduction 1 Location of the Project Area 1 Environment 1 Field Methods 2 Summary of Files Search 3 Study Objectives 5 Results 5 Site Significance 5 Resource Descriptions 6 Discussion 11 Summary of Site Evaluation and Recommendations 12 References 12 Appendix A: Cultural Resources Location Data A.1 List of Figures and Tables Figures 1 and 2. Project location maps vi, vii Figure 3. Posterior, medial, anterior and distal end views of the bison tibia fleshing tool .. 7 Figure 4. Diagrammatic cross-section of Willow Creek in the vicinity of the B. bison tibia fleshing tool discovery within the Upper Clear Creek Utility Corridor 9 Figure 5. View of Early Holocene vertical accretion alluvium subjacent to Middle to Late Holocene loess and sheet slow alluvium 9 Figure 6. Late Holocene terrace surface in the middle of the Willow Creek Valley. 10 Figure 7. Close-up of latest Holocene loess (Upper 20cm) and mixed loess and alluvium (below loess and above boulders) overlying boulders incorporated in Late Pleistocene lateral accretion alluvium 10 Figure A-1. Resource location map A.3 Table 1. List of previously recorded resources near the project area 3 Table 2. List of previously conducted survey projects within or near the project area 4 Table A-1. Location data for recorded sites. A.2 iv Isolated Finds Colorado Office of Archaeology and Historic Preservation CULTURAL RESOURCE SURVEY MANAGEMENT INFORMATION Please complete this form and attach a copy behind the Table of Contents of each survey report. Project Class III cultural resource inventory of a proposed Upper Clear Creek Utility Corridor Block Area in Garfield County, Colorado, for Chevron North America Exploration and Production [GRI Project No. 2895, 11/06/2008j Acres of Potential Effect/Project: <100 Class III Acres Surveyed: 900 acres (Private) Legal Location of Project (add additional pages if necessary) P. M.: 6th Quad map date(s): 1971 Quad Map Names: Desert Gulch and Figure Four Sprint Township: 5 South Range: 98 West Section 8, 16, 17, 21, 22, 26, 27, and 35 Smithsonian Number Resource Type Eligibility Management Recommendation Prehistoric 1o o Paleontological Unknown A w Not Eligible Need Data Contributes to National Register District No Further Work y Test Excavate Archival Research Other (specify) 5GF4293 X X X Total Sites 1 1 1 5GF4294 1 1 1 Total Isolated 1 1 1 Principal Investigator Name: Signature: Carl E. Conner Date: 11/06/2008 7f t is/1 1, f 'r r' Ciass 111 Survey Boundary ` ,:_,.ff..-/- - It • A / I / f r j" , Composite Quadrangle Map Desert Gulch (1971) and Figure Four Spring (1971) Garfield County, Colorado ArcMap GIS DRG from USGS 7.5 minute series (topographic) Scale: 1:24,000 Contour Interval: 40 feet T. 5 S., R. 98 W., 6th P.M.131 NAD83; Zone 12 ' I t Private'? Land ti liUi`�1 1', t ;: y' , V`�`1 i E a :,:r 1 ? �� 1 ` r , r`� ! /954 Private Land it r77 5� !/ 1-- '.. Previousiy Surveyed GRI # 2878, 9f31086' )t \ andBLM.) Land �� 0. j . Figure 1. Project location map (1 of 2) for the Class III cultural resource inventory report for the proposed Upper Clear Creek Utility Corridor Block Area (900 acres) in Garfield County, Colorado for Chevron North America. Area surveyed for cultural resources is indicated. [GRI Project #2895, 11/6/08] F t a Composite Quadrangle Map Desert Gulch (1971) and Mount Blaine (1971) Garfield County, Colorado ArcMap GIS DRG from USGS 7.5 minute series (topographic) Scale: 1:24,000 Contour Interval: 40 feet T. 5 S., R. 98 W., 6th P.M. NAD83; Zone 12 PfQ56ect'. / ; Class I ll ' •'9Suivey Bourn iary • Private` Land / ' S f. 1, springs 34 Figure 2. Project location map (2 of 2) for the Class III cultural resource inventory report for the proposed Upper Clear Creek Utility Corridor Block Area (900 acres) in Garfield County, Colorado for Chevron North America. Area surveyed for cultural resources is indicated. [GRI Project #2895, 11/6/08] Introduction At the request of Chevron North America Exploration and Production (Chevron), a Class III cultural resource inventory of a proposed utility corridor in Garfield County was conducted by Grand River Institute. The project area involved private lands located along Clear Creek north of Debeque, Colorado. The inventory and report preparation were conducted by Carl Conner (Principal Investigator), James C. Miller, Dakota Smith, Travis Archuleta, Jim Conner, Dana Archuleta, and Barbara Davenport of Grand River Institute under BLM Antiquities Permit No. C-52775. As a result, a total of 900 acres of private land was subjected to intensive inventory during this project. Field work was performed between the 7th and 23`d of October 2008. The research was undertaken by Chevron for the identification, evaluation, and protection of fragile, non-renewable evidences of human activity, occupation and endeavor reflected in districts, sites, structures, artifacts, objects, ruins, works of art, architecture, and natural features that were of importance in human events. Such resources tend to be localized and highly sensitive to disturbance. Location of the Project Area The project area is located on both sides of the Clear Creek road within Garfield County, Colorado. In general, the block area is located in T. 5 S., R. 98 W., Sections 8, 16, 17, 21, 22, 26, 27, and 35; 6th P.M. (Figures 1 and 2). Environment The proposed project is within the Piceance Creek Basin, one of the major geologic subdivisions of Colorado. The Piceance Creek Basin is an elongate structural downwarp of the Colorado Plateau province that apparently began its subsidence approximately 70 million years ago during the Laramide Orogeny. Sediments from surrounding highlands were deposited in the basin, accumulating to a thickness of as much as 9000 feet by the lower Eocene epoch, when subsidence ceased. Regional uplift occurred in the Late Tertiary, and erosion of the area has continued since (Young and Young 1977:43-46). The Wasatch formation underlies the study area. It consists of a series of interbedded variegated mudstones, sandstones, and siltstones of varying colors --brick red, tan, white, and purple. Forming after a period of erosion, the Wasatch is the first extensive continental deposit following those of the Cretaceous -age Mesaverde Group. Sediments are stream, floodplain, and swamp deposits. To the east, where the formation is thicker, its age ranges from the Paleocene (53ma) to middle Eocene (47ma) epochs of the Tertiary periods. The types of fossils found in the Wasatch suggest a moist tropical to subtropical environment 1 existed here. Crocodiles, turtles, early primates, and a myriad of browsing fauna indicate a relatively warm, lush environment similar to that found in southern Florida today. Sediments were deposited as areas surrounding the basin were uplifted. Streams drained into the basin but did not cut a channel through the basin boundaries. As a result, there was internal drainage where all the sediments from the surrounding highlands were deposited in the basin rather than being carried away by a major river (Armstrong and Kihm 1980:48). The project area rests at the base of the Roan Cliffs. The topography is valley bottom on the southwest and northeast sides of Clear Creek. Elevations range from about 6000 to 7000 feet. Vegetation communities include sagebrush/grasslands, pinyon juniper woodlands, and riparian along the Creek. Ground visibility ranged from 10% in the sagebrush, greasewood and oakbrush to about 80% in the disturbed areas along the county road. These communities support a variety of wildlife species although the present day land use of the project area (including energy development, grazing, ranching and farming) has pushed most large mammals into the surrounding mountains. There, mule deer, elk, coyote, and black bear are common, as are cottontail rabbits, beavers, and various rodents. Mountain lion, bobcat, fox, skunk, badger, and weasel are also likely inhabitants. Bird species observed in the area include the jay, raven, red -shafted flicker, long-eared owl, and various raptors. There is little climate variation within the study area. These relatively low elevations are host to a cool semiarid climate where temperatures can drop to -10 degrees F during the winters and summer temperatures may reach 100 degrees F; there is a maximum of 140 frost free days and the annual precipitation is about 10 inches. The surrounding higher elevations are characterized as cooler and moister. Annually, the high mountain temperatures could average 5 degrees cooler and the precipitation as much as 14 inches greater that the surrounding low elevations (USDA SCS 1978:244). Field Methods A Class III, 100% pedestrian, cultural resources survey of the block area was conducted by crews of two and three archaeologists walking zig zag parallel transects spaced at approximately 15 meter intervals. The survey was limited by heavy vegetation. Slopes over 30 percent grade were not inventoried. Crew members worked from USGS 7.5 minute series maps. Cultural resources were sought as surface exposures and were characterized as sites or isolated finds. A site is the locus of previous human activity (50 year minimum) at which the preponderance of evidence suggests either a one-time use or repeated use overtime, or multiple classes of activities. For example: a) Isolated thermal feature such as hearths are to be designated as sites, due to the interpretable function of such utilization and the potential for chronometric and economic data recovery, b) Single element rock art panels are to be designated as sites due to the interpretable nature of such an event and the potential 2 diagnostic value of the motive, c) Similarly, isolated human burials are to be designated as sites, or d) Loci exhibiting ground stone and flake stone in association. An isolate refers to one or more culturally modified objects not found in the context of a site as defined above. Note that this definition makes no reference to an absolute quantitative standard for the site/isolate distinction. For example: a) A discrete concentration of flakes from the same material regardless of the number of artifacts present likely represents a single, random event and is properly designated as in isolate, or b) Similarly, a ceramic pot bust is to be recorded as an isolate, regardless of the number of sherds that remain. All cultural resources that qualify as sites, such as prehistoric open camps, lithic scatters, occupied overhangs/rockshelters, and evidence of historic occupation, were recorded as they were encountered to standards set by the State Historic Preservation Officer. These were then evaluated for determining eligibility for nomination to the National Register of Historic Places (NRHP). Sites were recorded using the following methods of mapping and note taking. The basic approach to the data collection was the continuous mapping of observed artifacts and features by recording UTM coordinates (NAD 83 Datum) using a Trimble Geo XT. Site maps were created using corrected GPS data and ARCMAP. Photographs were taken at each site and included general views and specific artifacts or features. Field notes and photo negatives for this project are on file at Grand River Institute. One artifact (IF) was collected, which will be returned to the landowner. Summary of Files Search and Literature Overview Records searches for the project area were conducted through the Preservation Office of the Colorado Historical Society (Compass website) on 2 October 2008. In addition, GLO Plats were checked for evidence of trails, buildings, irrigations systems, and other historic properties. This review indicated that no sites have been previously recorded within the project area although two have been within approximately 1.0 mile (Table 1). Table 2 lists the previous projects that have been conducted within or near the project area that were located as a result of the files research. Table 1. List of previously recorded cultural resources near the project area. Site ID Site Type Assessment UTM Coordinates NAD 27 / Zone 12 Easting Northing 5GF.652 Open Lithic Not Eligible - Field 719960 4388930 5GF.665 Historic, Habitation Needs Data - Field 724430 4386570 3 Table 2. List of previous cultural resource inventories within or near the project area. Project No. Title/Author/Date/Contractor GF.PA.R9 Title: Cultural Resources Inventory Baseline Report Clear Creek Property, Garfield County, Colorado Author: La Point, Halcyon, Bryan Aivazian, and Sherry Smith Date: 10/01/1981 Contractor: Laboratry of Public Archeology for Environmental Research & Technology, Inc. and Chevron Shale Oil Company GF.LM.R341 Title: Class III Cultural Resource Inventory Report for Two Proposed Pipeline Route Segments (8.50 Miles) in Clear Creek and Deer Park Areas of Garfield County, Colorado, for ChevronTexaco (GRI No. 2533) Author: Conner, Carl E. and Barabra J. Davenport Date: 06/03/2005 Contractor: Grand River Institute BLM Ref. #1108-12 Title: Class III cultural resource inventory of the BLM portion of the proposed utility corridor in Garfield County, Colorado, for Chevron North America Exploration and Production (GRI No. 2878) Author: Conner, Carl E. and Barabra J. Davenport Date: 3 September 2008 Contractor: Grand River Institute Local and regional archaeological studies suggest nearly continuous human occupation of west -central Colorado for the past 12,000 years. Manifestations of the Paleoindian Era, big -game hunting peoples (ca. 11,500 - 6400 BC); the Archaic Era hunter/gatherer groups (ca. 6500 - 400 BC); the Formative Era horticulturalist/forager cultures (ca. 400 BC- AD 1300); the Protohistoric Era pre -horse hunter/gatherers (Early Numic, ca. AD 1300 - AD 1650) and early historic horse -riding nomads (Late Numic, ca. AD 1650 - AD 1881). An overview of the prehistory of the region is provided in documents published by the Colorado Council of Professional Archaeologists' entitled Colorado Prehistory: A Context for the Northern Colorado Plateau (Reed and Metcalf 1999). Euro - American exploration and settlement of the of the region are presented in the Colorado Historical Society's publication entitled Colorado Plateau Country Historic Context (Husband 1984) and in the BLM publication Frontier in Transition (O'Rourke 1980). 4 Study Objectives A Class III study provides an inventory to identify cultural resources within the previously unsurveyed areas likely to have been and to be adversely affected by proposed energy related construction, to evaluate these sites' eligibility for listing in the NRHP, and to make management recommendations for those sites found to be eligible. Results As expected, cultural resource were encountered within the intensive inventory areas. From the files search data, the USGS maps and the present Class III survey, one historic site and an isolated find were newly recorded within the proposed project boundary. This portion of the report presents a discussion of site significance evaluation and describes the site and isolate, and provides their management recommendations. Detailed location information, including forms and maps, can be found in Appendix A. Site Significance The National Historic Preservation Act of 1966 (NHPA) directs the BLM to ensure that BLM-initiated or authorized actions do not inadvertently disturb or destroy significant cultural resource values. Significance is a quality of cultural resource properties that qualifies them for inclusion in the NRHP. The statements of significance included in this report are field assessments to support recommendations to the BLM and State Historic Preservation Officer (SHPO). The final determination of site significance is made by the BLM in consultation with the SHPO and the Keeper of the Register. The Code of Federal Regulations was used as a guide for the in -field site evaluations. Titles 36 CFR 50, 36 CFR 800, and 36 CFR 64 are concerned with the concepts of significance and (possible) historic value of cultural resources. Titles 36 CFR 65 and 36 CFR 66 provide standards for the conduct of significant and scientific data recovery activities. Finally, Title 36 CFR 60.4 establishes the measure of significance that is critical to the determination of a site's NRHP eligibility, which is used to assess a site's research potential: The quality of significance in American history, architecture, archaeology, and culture is present in districts, sites, buildings, structures, and objects of State and local importance that possess integrity of location, design, setting, materials, workmanship, feeling, and association, and a) that are associated with events that have made a significant contribution to the broad patterns of history; or b) that are associated with the lives of persons significant in our past; or c) that embody the distinctive characteristics of a type, period, or method of construction, or that represent the work of a master, or that possess high artistic values, or that represent a significant and distinguishable entity whose components may lack 5 individual distinction; or d) that have yielded, or may be likely to yield, information important in the prehistory or history. Resource Descriptions Site 5GF4293 is an historic corral and bridge located at the confluence of Clear Creek and Willow Creek. EIevation is approximately 5880 feet. Vegetation is riparian, mixed with sagebrush, grasses, and rabbitbrush. Soils are light brown, sandy loam. Features are dispersed in an area measuring 180 feet east -west by 275 feet north - south. The central feature, an historic corral, is about 65 feet by 70 feet. Posts are hand hewn of local wood. Only three sides of the corral remain, the northwest, northeast, and southeast faces. Clear Creek is southwest of the feature. South of the corral is a footbridge, which spans Clear Creek. It is composed of milled lumber and wood sheets with large cable reinforcements. It is three feet wide and thirty feet long. The construction date for the features is unknown but appears to be post -1930. Evaluation and Management Recommendations: The site is field evaluated as not eligible for listing on the National Register of Historic Places. This determination was reached by assessing the site in terms of integrity as defined by the State Historic Preservation Office wherein a resource that retains its integrity will possess several and usually most, of the seven aspects of integrity (location, setting, design, materials, workmanship, feeling, and association). There is nothing significant regarding the site's setting or location. The materials, design and workmanship are vernacular and are not unique or remarkable examples of western ranch buildings. In terms of integrity of feeling and association, no historic homestead information is on record for the site's location and it could not be linked to historical significant figures. No further work is recommended. Isolated Find 5GF4294 is the distal portion of a mature Bison spp. left tibia that was found in the upper reaches of Willow Creek. The specimen is an artifact and exhibits green bone fractures and flaking; the fractures are the result of marrow extraction generally, while subsequent percussion flaking produced a fleshing tool normally used to remove hide and strip meat from the carcass. Maximum length of the specimen is 14.1cm from the distal end of medial malleolus to the sharp projection of the flesher point on the medial, anterior portion of the shaft. The tip of the flesher displays rounding and edge damage from cultural use. Fleshing tools made from bone are common in bison and other types of kill sites (e.g., Prison 1978). The postcranial elements of bison (Bison spp.) and cattle (Bos spp.) are similar (see Brown and Gustafson 1979). In both, the anterior facet for the distal fibula has a greater 6 posterior view medial view distal end view anterior view Figure 3. Posterior, medial, anterior and distal end views of the bison tibia fleshing tool. Labels designate identification landmarks discussed in the text. 7 anterior-posterior dimension in relation to the medial-lateral dimension (a in Figure 3), and the synovial fossa (b) extends from the intermediate ridge into both the medial and lateral articular grooves. Other common characteristics include the shape of the medial malleolus (c), the character of the lateral edge of the lateral articular groove (c, the raised tubercle above the medial malleolus (e), and a slight depression on the posterior edge of the distal articulation surface (f). The one trait of distal tibiae that separates Bison from Bos is a raised tubercle above the anterior fibular facet on the anterior, lateral surface (g). It is this trait that definitively identifies the specimen as Bison spp. The dimensions on the distal articular surface are 7.4cm medially to laterally, from the tubercle above the medial malleolus to the lip above the posterior fibular facet (h); and 5.3cm anteriorly to posteriorly, from the ridge above the anterior edge of the medial malleolus to the posterior extension of the tibia shaft behind the medial articular surface. The size of the distal end clearly identifies the specimen as one of the modern Bison species. The clinal variation in modem Bison species suggests three species: the woods bison in the north (B. bison athabascae), the Plains form (B. bison bison), and the still ill defined mountain bison (see Wilson 1978). In isolated discoveries, such as the tibia fragment discussed here, species is best inferred by location. Tentatively, the specimen is identified as mountain bison. The partial tibia was found on the surface on the west side of Willow Creek, on the first terrace less than about 50cm above the active channel. Natural weathering on the specimen is uneven. All but the posterior and adjacent parts of the medial and lateral surfaces are bleached and display flaking of the concentric outer layers and cracking that resulted from the loss of the organic constituents of bone. This condition is consistent with early Stage 2 weathering (after Behrensmeyer 1978) and indicates the identified surfaces were exposed to sunlight (i.e., UV radiation) and meteoric water in a surface environment for three to five years. Since the posterior and adjacent parts of the medial and lateral surfaces are essentially unweathered, it appears that the more advanced weathering stage on the anterior has occurred since the bone was liberated from the deposits surrounding it in the recent past. The bone was relatively clean when discovered, but with some sediment remaining in deep fractures caused by cultural modifications and in cavities in cancellous bone on the interior of the shaft and distal end. It seems clear that the bone eroded out upstream of the location of discovery and was redeposited downstream. The location of the discovery was reexamined on October 23, 2008, by James Miller and Dana Archuleta of GRI jointly with Sean Norris and Jim Koffer of Chevron North America; no additional remains were discovered. The age of the bone is not precisely known. Sediment extracted from the cancellous bone and fractures is a well sorted fine sand to coarse silt with a significant organic fraction, most closely resembling the mixed loess and vertical accretion alluvium that partially fills 8 N I? SW Middle/Late Holocene Ioess & sheet flow alluvium Construction fill Latest Holocene alluvium Latest Holocene loess /Mixed Late Holocene Ioess & ? 1p' alluvium 41.3 Early Holocene braided alluvium 141P' 11: \. Colluvium & sheet flow alluvium Pleistocene gravel Figure 4. Diagrammatic cross-section of Willow Creek in the vicinity of the B. bison tibia fleshing tool discovery within the Upper Clear Creek Utility Corridor. Sediment obtained from the artifact most closely resembles the mixed Late Holocene loess and alluvial deposits indicated. 9 Figure 5. View of Early Holocene vertical accretion alluvium subjacent to Middle to Late Holocene loess and sheet slow alluvium (dark deposits on top of sequence). Sean Norris is standing on latest Pleistocene deposits. Figure 6. Late Holocene terrace surface in the middle of the Willow Creek Valley. Sean Norris is standing on the upper surface of the latest Holocene loess. The mixed Ioess and alluvial deposits that likely contained the bison tibia in an upstream locale arc about 20-50cnm below the terrace surface at this location. Figure 7. Close-up of latest Holocene loess (Upper 20cm) and mixed loess and alluvium (below Ioess and above boulders) overlying boulders incorporated in Late Pleistocene lateral accretion alluvium. Scale is l0cm. 10 the middle Holocene incision at the location (see Figure 4 for a diagrammatic cross-section of the late Quaternary geology of the locale, Figures 5 through 7 show some of the deposits identified in Figure 3). In addition, insect exoskeleton fragments and maggot casings were also removed from the tibia; the latter are most likely relics from the time the kill took place. The similarity of sediment recovered from the interior of the bone to the mixed loess and alluvial deposit, and the excellent preservation of the chitinous exoskeletons and maggot cases suggests the bone is less than 1500 years old, i.e., from the Late Prehistoric or Formative period, or possibly Ute. Discussion Bison remains in the eastern Colorado Plateau and adjacent areas of the Southern Rocky Mountains are relatively rare and known specimens appear to be from the Late Prehistoric (Smith et al. 2008). Only a fraction of the small number of bison remains have a certain cultural connection, and of these, all appear to be encounter kills of a single animal related to short-term encampments (Smith et al. 2008). Archaeological investigations by Carl E. Conner at Late Prehistoric sites 5ME5997 and 5ME6144, the former an open camp and the latter a rockshelter, revealed a small sample of bison bone, including a utilized bison scapula at site 5ME5997. According to Conner (1998), the bison scapula at 5ME5997 was the first substantial evidence for the presence of bison on the Uncompahgre Plateau. Farther east, a single bison kill with a ceremonial aspect, site 5EA2742, was only recently discovered (Smith et al. 2008). Two communal kill sites in the Green River Basin, Wyoming—the Barnes (48LN350) and Wardell (48SU301) sites—appear to be the nearest large kills. The Barnes site is a Late Prehistoric bison jump located on the Fontenelle Creek in southwest Wyoming (McKern1995). Investigations in 1987, revealed eighteen individual bison, and an earlier investigation conducted in 1978 by Charles Love from Western Wyoming Community College noted that bone, possibly representing four or five different bison, was collected by his informants. The Wardell site is more complex and consists of a Late Prehistoric bison pound, butchering and processing area, and campsite located in the Green River Basin near Big Piney, Wyoming (Frison 1973). Bison were herded into a corral at the base of a steep scarp and slaughtered. There are nearly five feet of stratified bone levels spanning a total of 500 years. Hundreds of bison are interred at the site; excavations involving less than a quarter of the site exposed at least 150 bison. There is a long held belief in the archaeological community that a bison kill site is located on the upper reaches of Willow Creek (Carl E. Conner, personal communication 2008), in the area near where the tibia was found, so the significance of the find cannot be understated. The presence of the tibia confirms the presence of the kill, but its exact location 11 remains uncertain. If found, based on the location of this tibia, the site would be the only multiple -animal modern bison kill known in the region and is significant on that count alone. Summary of Site Evaluations and Recommendations The eligibility determination and consultation process is guided by Section 106 of the NHPA (36 CFR 60, 63, and 800). Inventory to identify, evaluate, and mitigate potential effects to cultural resources affected by an undertaking is the first step in the Section 106 process. Final determinations of National Register eligibility and effect are sought from the controlling federal agencies in consultation with the State Historic Preservation Officer (SHPO) and the Advisory Council on Historic Preservation. As a result of the Class III inventory, site 5GF4293, an historic corral, and 5GF4294, an isolated find of a bison tibia butchering tool, were newly recorded. Both of the cultural resources documented by this project were field evaluated as not eligible for listing on the National Register of Historic Places. Accordingly, a determination of "no effect" for the project is recommended pursuant to Section 106 of the National Historic Preservation Ace (36 CFR 800). No further work is recommended. References Armstrong, Harley J. and Allen J. Kihm 1980 Fossil vertebrates of the Grand Junction Area. Ms on file at the Bureau of Land Management Grand Junction Field Office. Behrensmeyer, Anna K. 1978 Taphonomic and ecologic information from bone weathering. Paleobiology 4(2):150-162. Brown, Christopher L. and Carl E. Gustafson 1979 A key to the postcranial remains of cattle/bison, elk, and horse. In: Reports of Investigations 57. Laboratory of Anthropology, Washington State University. Conner, Carl E. 1998 Archaeological investigations at site 5ME5997 and 5ME6144: evaluative test excavations as part of the Griffith Land Exchange in Mesa County, Colorado. Ms on file Bureau of Land Management, Grand Junction Field Office. 12 Frison, George C. 1973 The Wardell buffalo trap 48SU301: communal procurement in the upper Green River Basin, Wyoming; Anthropological Papers of the Museum of Anthropology 48, University of Michigan. 1978 Prehistoric hunters of the High PIains. Academic Press, San Francisco. Husband, Michael B. 1984 Colorado Plateau Country Historic Context. Colorado Historical Society, Denver. McKern, Scott T. 1995 The Barnes site (48LN350): a Late Prehistoric bison jump in the western Green River Basin. Contributions to Archaeolog,v 7. Archaeological Services of Western Wyoming Community College, Rock Springs. O'Rourke, Paul M. 1980 Frontier in Transition. Bureau of Land Management Cultural Resources Series Number Ten. Colorado State Office, Denver. Reed, Alan P. and Michael D. Metcalf 1999 Colorado Prehistory: A Context for the Northern Colorado Plateau. Colorado Council of Professional Archaeologists, Boulder. Smith, Dakota N., James C. Miller, and Carl E. Conner 2008 The Bocce Mountain bison ceremonial site (5EA2742): bison in ceremony and occurrence of bison in the eastern Colorado Plateau and surrounding areas during the Late Holocene. Dominguez Archaeological Research Group Occasional Paper 1, Grand Junction. U.S.D.A., Soil Conservation Service 1978 Soil Survey of Mesa County Area, Colorado. Wilson, Michael 1978 Archaeological kill site populations and the Holocene evolution of the genus Bison. In: Bison procurement and utilization: a symposium. Plains Anthropologist 23:82:Pt.2, Memoir 14 (L. B. Davis and M. Wilson, eds.). Young, Robert G. and Joann W. 1977 Colorado West, Land of Geology and Wildflowers. Wheelwright Press, Ltd. 13 Appendix A: Location Data and OAHP Site and Isolated Find Forms A.1 Table A-1. Cultural resources location data. Resource No. Description UTM Location 5GF4293 Historic Corral and bridge 12; 721955mE; 4388755mN (NAD 83) 5GF4294 Bison tibia tool 12; 721259mE; 4390122mN (NAD 93) A.2 Complete Colorado Cultural Resource Survey Management Data Form (page 1 of 4) this form for each resource in addition to other appropriate forms --see Manual for information 1. State Site Number 5GF4293 2. Temporary Site Number GRI #2895 3. Attachments (check as many as apply) Prehistoric Archaeological Component X Historical Archaeological Component Historical Architectural Record/ Building Form X Sketch/Instrument Map (required) X U.S.G.S. Map Photocopy (required) X Photograph(s) Other, specify 4.Official determination (OAHP use only) Determined Eligible Determined Not Eligible Nominated Listed Need Data Contributing to NR Dist. Not Contributing to NR Dist. I. IDENTIFICATION 5. Resource Name 6. Project Name/Number GRI 2895: Class III Cultural Resource Inventory Report for the Proposed Upper Clear Creek Utility Corridor Block Garfield County, Colorado for Chevron North America. Area (900 acres) in 7. Government Involvement: Local State Federal Agency 8. Site Categories: Check as many as apply Prehistoric: archaeological site paleontological site in an existing National Register District? yes no name Historic: archaeology site building(s) structure(s) X object(s) in an existing National Register District? yes no name 9. Owner/Owner's Address Private 10.Boundary Description and Justification Visible extent of features. 11.Site Dimensions 180ft X 275ft Area 36,135 ft2 (=43560) 0.8 Area was calculated using ArcView spatial analysis. 1I. LOCATION 12.Legal Location PM 6th Township 5S Range 98W SE '4 of NE '4 of NE k of NW k PM Township Range _ of _ k of — k of PM Township Range _ ' of — k of 3,1 of PM Township Range 3, of _ k of _ k of k if section is irregular, explain alignment method 13.USGS Quad Desert Gulch acres Section 17 Section Section Section 7.5' X 15'_ Date(s) 1971 (attach photocopy) 14.County Garfield 15.Other Maps State Site # 5GF4293 Management Data Form Temporary # GRI #2895 (page 2 of 4) 16.UTM Reference A. 1 2; 7 2 1 9 5 5mE 4 3 8 8 7 5 5mN B. : mE mN C. ` _; mE mN D. ; mE mN 17.Address Lot Block Addition 18.Location/Access From the intersection of Roan Creek Road and Clear Creek Road, travel up Clear Creek for 12 males to confluence of Willow Creek and Clear Creek. Stop, you are presently at the site. II. NATURAL ENVIRONMENT 19.Topographic Feature(s) mountain ledge playa hill terrace/bench talus slope tableland/mesa edge canyon alluvial fan ridge X valley plain saddle/pass basin dune alcove/rockshelter X floodplain cliff cutbank slope arroyo/gully 20.Describe on-site topography (mention named landforms) Clear Creek cuts through the southern portion of the site ESE / WNW 21.Site Elevation 5880 feet =(x .3048) 1792 meters 22.Aspect NE -SW 23.Degree of slope on site 0-5 24.Soil Depth unknown 25.Soil description (character and color) Light brown sandy loam 26. Depositional environment: aeolian residual colluvial X alluvial none moraine other, specify 27.Nearest water: name/nature Clear Creek distance 0 m 0 ft. 28.Nearest permanent water: name distance 29.Vegetation on site (list predominant species) Riparian (narrow leaf cottonwood, dense grasses, shrubs 30.Vegetation associations/communities surrounding site Sagebrush, rabbitbrush, grasses State Site 4 5GF4293 Management Data Form Temporary # GRI 42895 (page 3 of 4) IV. National Register Eligibility Assessment 31.Colorado Historical Society context (RP3) theme(s) Ranching/Agriculture Specify 32.Applicable National Register Criteria X Does not meet any of the below National Register criteria A. associated with events that have made a significant contribution to the broad pattern of our history B. associated with the lives of persons significant in our past C. embodies the distinctive characteristics of a type, period, or method of construction, or that represent the work of a master, or that possess high artistic values, or that represent a significant and distinguishable entity whose components may lack individual distinction D. has yielded, or may be likely to yield, information important in history or prehistory Qualifies under exceptions A through G (see Manual) Level of Significance National State X Local 33.Condition a. Architectural/Structural b. Archaeological/Paleontological Excellent Undisturbed Good Light disturbance Fair Moderate disturbance X Deteriorated Heavy disturbance Ruins Total disturbance 34.Describe condition The bridge is deteriorating/showing wear/sagging. 35.Is site vandalized? yes no X describe 36.Eligibility Recommendation: Eligible Not Eligible X Need Data Statement of Significance/N.R.H.P. Justification This site is field evaluated as not eligible for listing on the National Register of Historic Places because it lacks integrity in the form of location, setting, design, feeling and association. 37. If in an existing National Register District, is the site Contributing Non -Contributing 38.Is there National Register District Potential? yes no X discuss State Site # 5GF4293 Management Data Form Temporary # GRI #2895 (page 4 of 4) V. MANAGEMENT AND ADMINISTRATIVE DATA 39. Threats to Resource: water erosion X wind animal activity x neglect vandalism recreation construction X other(specify) comments 40. Existing Protection: none marked_ fenced patrolled_ access controlled x other (specify) 41. Local landmark designation 42. Easement 43. Management Recommendations No further work is necessary. VI. DOCUMENTATION 44. Previous Actions Accomplished at the site a. Excavations: test partial complete Date(s) b. Stabilization: Date(s) c. HABS/HAER Documentation: Date(s) & Numbers d. Other 45. Known collections/reports/interviews and other references (list) None 46. Primary Location of Additional Data 47. State or Federal Permit Number C-52775 Collection Authorized: yes X no Artifact Collection: yes no X Method: Diagnostics grab sample random sample transect Other (specify) Artifact Repository 48. Photograph Nos. 2895: 1:1-5 negatives filed at Grand River Institute 49. Report Title GRI 2895: Class III Cultural Resource Inventory Report for the Proposed Upper Clear Creek Utility Corridor Block Area (900 acres) in Garfield County, Colorado for Chevron North America. fGRI Project No. 28951 50. Recorder(s) Jim Conner and Dana Archuleta Date(s) 10/07/2008 51. Affiliation Grand River Institute Phone Number 970-245-7868 Colorado Historical Society, Office of Archaeology & Historic Preservation, 1300 Broadway, Denver, CO 80203, (303) 866-3395 Colorado Cultural Resource Survey Historical Archaeology Component Form (page 1 of 4) Use this form in conjunction with the Management Data Form. This form should be completed for each historical site with archaeological potential. 1.State Site Number 5GF4293 2.Temporary Number GRI 2895 Does this form pertain to the site in general? yes X no OR a particular feature/structure (please note feature/structure number) 3. Site/Feature Type: Corral and footbridge 4. General Site/Feature Description: Site 5GF4293, an historic corral, is located at the confluence of Clear Creek and Willow Creek. Elevation is approximately 5880 feet. Vegetation is riparian, mixed with sagebrush, grasses, and rabbitbrush. Soils are light brown, sandy loam. Features are dispersed in an area measuring 180 feet east -west by 275 feet north -south. The central feature, an historic corral, is about 65 feet by 70 feet. Post are hand hewn, presumably of local wood. Only three sides of the corral remain, the northwest, northeast, and southeast faces. Clear Creek is southwest of the feature. South of the corral is a footbridge, which spans Clear Creek. It is composed of milled lumber and wood sheets with large cable reinforcements. It is three feet wide and thirty feet lona. The construction date for the features is unknown. 5. Historic Component date(s) and/or sociopolitical period unknown justification 6. Component Function(s) Original Use Ranching Present Use Ranching Comments 7. Ethnic affiliation of occupants Euroamerican justification Type of structure/site Site # 5GF4293 Historical Archaeology Component Form Temporary # (page 2 of 4) 8. Artifact Classes: Please list specific attributes in the first blank and artifact quantity (either count or estimate) on the second line. Particularly important attributes are listed following the artifact class. Description Ouantity A. Glass (function, color, manufacturing technique, makers marks,inscriptions, thickness, shape) bottle window other B. Ceramics (function, surface treatment/glaze, shape, trademarks, color, decorations, earthenware stoneware porcelain C. Nails (size, material type and manufacture techniques if not wire or cut) cut nails wire nails D. Cans (function, size, material type, type of opening, seams, inscriptions, hole-in-top/hole-in-cap sanitary other: Site # 5GF4293 Temporary # E. Cartridge Cases Historical Archaeology Component Form (page 3 of 4) (size, inscriptions, material type) F. Construction Material - logs, milled lumber, brick, adobe, cement/concrete, stone/rock, corrugated metal, asphalt/tar, pipe, etc. Milled lumber, hand hewn lumber, G. Misc. Other Items - utensils, stove parts, wire, nuts, bolts, rivets, screws, buckets, barrels, animals shoes, wagon or car parts, machinery, leather, fabric, clothing, bone, furniture, buttons, coins, etc. 9. Artifact Density: Heavy Medium Light X Describe The premises is tidy with little to no artifacts on the surface. 10. Additional information Please complete parts 9 and 10 only if this form pertains to the site in general. Site # 5GF4293 Historical Archaeology Component Form Temporary # 2730-s1 (page 4 of 4) 11. Architectural Features (complete "Historic Architecture Record/Building Form" when appropriate) Approx. Map Ref. Description Construction Material Dimensions Corral Footbridge Hand hewn lumber 65x70 ft Milled lumber 3 x30 ft 12. Non -architectural Features Map Ref. Description Construction Material Dimensions 13. Recorder(s) Jim Conner and Dana Archuleta Date 10/07/08 Colorado Historical Society, Office of Archaeology & Historic Preservation, 1300 Broadway, Denver, CO 80203, (303) 866-3395 0 0 721000 722000 723000 724000 Composite Quadrangle Map Desert Gulch (1971) (south) Figure Four Spring (1971) (north) Garfield County, Colorado ArcMap GIS DRG from USGS 73 minute series (topographic) Scale: 1:24,000 Contour Interval: 40 feet T. 5 S., R. 98 W., 6th P.M. NAD83; Zone 12 5GF4294 w - — m Class 111 Survey .Boundary 0 O 0 _CO Previoi GRI # 2 Private Land r�5 BLM 1 Land , 1 1 1 1 721000 722000 723000 724000 Figure A-1. Cultural resources location map for the Class III cultural resource inventory report for the proposed Upper Clear Creek Utility Corridor Block Area (900 acres) in Garfield County, Colorado for Chevron North America. Cultural resources are indicated. [GRI Project #2895, 11/6/08] 0 O O 0 0 0 0 CO a 0 0 0 _0 m 'V' 721920 0 CO 0340 CI o CO 03 m m CO rm m CO VI VI Q Q 721960 722000 722040 CO COCO 0 0 CO COCO 0 to 03k c0 721920 721960 722000 722040 5GF4293 t Corral NAD 83 Zone 12 Feet Imm 0 25 50 100 6-6-6-6- Corral Footbridge 0 Photo _ Contour Line -� - Clear Creek Photo 1:2 A, View W n i N. i Photo 1:1 View NW Photo 1:3 View SW Photo 1:4 View E f %- N. : •` Footbridge \ \ Photo 1:5 View NNE 20, ss0. o `. \ CO COCO 0 0 CO COCO 0 to 03k c0 721920 721960 722000 722040 Site No.:5GF4293 View: Northwest Comment: View of historic corrals. Photo No.: GRI 2895-1:1 Date:10/07/08 Site No.:5GF4293 View: West Comment: View of historic corrals. Photo No.: GRT 2895-1:2 Date:10/07/08 Site No.:5GF4293 View: Southwest Comment: View of deteriorating footbridge over Clear Creep Photo No.: GRI 2895-1:3 Date:10/07/08 Site No.:5GF4293 View: East Comment: View figure on historic footbridge. Photo No.: GRI 2895-1:4 Date:10/07/08 COLORADO CULTURAL RESOURCE SURVEY Isolated Find Record OAHP1408 Rev. 9/98 I. IDENTIFICATION AND LOCATION 1. Resource No.: 5GF4294 2. Temp. Resource Number: 2895-IF1 3. County: Garfield 4. Legal Location: PM 6u' Township 5 S Range 98 W Sec 8 SW 1/4 SW 1/4 NW 1/4 NW 1/4 If section is irregular, explain alignment method 5. UTMs: Zone 12 , 7 2 1 2 5 9 mE, 4 3 9 0 1 2 2 mN. 6. USGS Quad Name: Figure Four Spring Date: 1971 II. ARCHAEOLOGICAL DATA Sketch/Trace Here (see attached) 7. Artifacts: 5GF4294 is the distal portion of a mature Bison spp. left tibia that was found in the upper reaches of Willow Creek. The specimen is an artifact and exhibits green bone fractures and flaking; the fractures are the result of marrow extraction generally, while subsequent percussion flaking produced a fleshing tool normally used to remove hide and strip meat from the carcass. Maximum length of the specimen is 14.1cm from the distal end of medial malleolus to the sharp_proiection of the flesher point on the medial, anteriorportion of the shaft. The tip of the flesher displays rounding and edge damage from cultural use. Fleshing tools made from bone are common in bison and other types of kill sites (e.q., Frison 1978: Prehistoric Hunters of the High Plains.) 8. IF Dimensions: X OR Single Artifact 14.1 x 7.4 x 5.3 cm 9. Inferred Function(s): Hunting/faunal processing 10. Cultural AffiliationiTime Period: Likely post AD 500 based on sediment extraction from tibia fragment 11. Comments: III. ENVIRONMENTAL DATA 12. Elevation: Feet 6760 Meters 2060 13. Soil: Alluvium 14. Topography: small bench on edge of drainage 15. Slope: Site 0 % Surrounding 0-30 16. Nearest Water: Name/Nature: Willow Creek, permanent Elevation 6590 ft Distance 1m Direction 90° 17. Vegetation: Riparian zone IV. REFERENCE DATA 18. Collection: Yes X No Describe artifact for analysis 19. Repository: Chevron North America 20. Landowner: Chevron North America 21. Report Title: GRI Report No. 2895: CR! for Upper Clear Creek Utility Corridor Block Area 22. Recorder(s): Jim Conner, James C. Miller, Dakota Smith 23. Recorder Affiliation: Grand River Institute 24. Date(s): 10/23/2008 Colorado Historical Society - Office of Archaeology & Historic Preservation 1300 Broadway, Denver, CO 80203 303-866-3395 Figure 3_ Posterior, medial, anterior and distal end views ofthe bison tibia fleshing tool. Labels designate identification landmarks discussed in the text. 7 0 0 O P) 721000 722000 723000 724000 Composite Quadrangle Map Desert Gulch (1971) (south) Figure Four Spring (1971) (north) Garfield County, Colorado ArcMap GIS DRG from USGS 7.5 minute series (topographic) Scale: 1:24,000 Contour Interval: 40 feet T. 5 S., R. 98 W., 6th P.M. NAD83; Zone 12 0 0 0 0 0 721000 722000 723000 724000 Figure A-1. Cultural resources location map for the Class III cultural resource inventory report for the proposed Upper Clear Creek Utility Corridor Block Area (900 acres) in Garfield County, Colorado for Chevron North America. Cultural resources are indicated. [GRI Project #2895, 11/6/08] POWER OF ATTORNEY CHEVRON U.S.A. INC. KNOW ALL MEN BY THESE PRESENTS THAT CHEVRON U.S.A.INC., a Pennsylvania corporation, ("CHEVRON"), acting herein through J. STEPHEN LASTRAPES, Assistant Secretary, hereunto duly authorized by Resolution of the Board of Directors, hereby makes, constitutes, and appoints MICHAEL DeBERRY, to be its true and lawful Attorney -in -Fact with authority, for and on its behalf, without the necessity of affixing the corporate seal, to execute, acknowledge, deliver, file, record, accept, assign, amend, extend, terminate, withdraw, release, settle, compromise, surrender, ratify, and renew all instruments, papers and documents requiring execution in the name of CHEVRON, except as herein below stated, and no authority is conferred by this Power of Attorney for execution of the following: 1. Leases or deeds to others covering oil, gas or other hydrocarbon or non -hydrocarbon minerals underlying fee lands of CHEVRON where either book value or sale price exceeds Twenty -Five Million Dollars ($25,000,000.00) or the acreage exceeds Six Thousand Four Hundred (6,400) acres; 2. Deeds or conveyances to others covering fee Iands of CHEVRON, other than rights of way and similar easements, where either book value or sale price exceeds Twenty -Five Million Dollars (525,000,000.00); 3. Documents, instruments or promissory notes in support of any borrowings; provided, however, that promissory notes and other documents given as consideration for the acquisition of real or personal property shall not be deemed to constitute a borrowing; 4. Documents or agreements establishing bank accounts in the name of CHEVRON or withdrawing of funds or closing of any bank accounts of CHEVRON. This Power of Attorney shall remain in full force and effect from and after first day of January, 2009 through the 31st day of December, 2009, and its exercise shall be valid in all the states, territories and possessions of the United States. IN WITNESS WHEREOF, CHEVRON has caused its name to be subscribed hereto by J. STEPHEN LASTRAPES, Assistant Secretary, for that purpose duly authorized, this 31st day of December, 2008. CHEVRON U.S.A. INC. By. STATE OF TEXAS COUNTY OF HARRIS J. STEPHEN LASTRAPES Assistant Secretary This instrument was acknowledged before me on the 31st day of December, 2008, by J. STEPHEN LASTRAPES, Assistant Secretary of CHEVRON U.S.A. INC., a Pennsylvania corporation, on behalf of said corporation. DSA H MCCLENDON My Commission ExPimi 4406, 2012 Notary Public, State of Texas • 3 11.1! cisommimmilesammemono Denver 039701 4--EO6t. ae nil toWilson Illtsr yr Mille Stall einem. Oerrethis: NHEIIEAS, to apusaa<e of Ile ,ee.tem ei tke Rrdud Stahel!' d 11e Onaled 84Y., [haiMr 11x. Tllrr Thirlphor. datiaa saylewutrl Aerate. Aero 1u ken depulld 12 tit &nerd lred 0fl.e dike Ya1Mi 51otp tie trrllkate of Ilk 11111etet of lie to/delete; Denver, Colorado, the Shale Oil syndicate, Inc., xpmputlod bT olker eudnwr ■1r skT i1 rppru+ flat se.., Juno 1;28s .7 !du e.6 p, rx Mai mealq riskdng <I l i or pre.vrmlrrt. r known as the Glen Beulah, General Joffre No. 1, Cenral Jorfru No. ;c;, Gon- ers' Joffre No. 3, ant General Joifro No. 4 oiI shale placer coining claims, situate in Garfield County, 0o14rado, described as follows: the Oen Beulah claim colaprising Tract forty -ono in Township six south of Range ninety -sight went or the Sixth Principal Neridiait; the Cunorut Joffre No. 1 claim comprising Tract forty-two said Township and Hanna; the General Jorfre t:,. G claim comprising Tract ono hundred nine in To::nshipu rive and six south of said Range ninety-eight west; the General Jofire No..3 claim comprising Tract one hundred ten, said Township rive south; and the General Joffre !;o. 4 claim Comprising Tract one hundred eleven, said Town- ship five south; the premises herein granted, containing seven hundred thirty-eight acres and nighty hundredths of an acre. J :%1 tee:. ..0 16•16 Kn.". 11. tt e1 tt.•rr I, tc•fA-•., p.14.4 441 ,n • afn1.•+*1, 6 ,6Lr :mord 16 eh. Wawa 9:atr1 nolo Or we :;1.)t le Oil •;indice to, Ina. 70 11A111 ARO TO TTOID pid misln6 rrrintie$ +1Mroe.er mune 11erca6l6 %Ocoee* unto Om gild b and tidlns ferule; tu1jtef n.eerl►ebso to 116 hello F165T. 7101 the Lranl bttelr 6141e it 16116k66 oohs or lades d sostIr at nhsr rock 1. Ftaee In 1.an Nen *1 A1Jt 'ski Cribs 1.1.641 SICOCD. 116616 ins Isle Os Fede moble Surmise, ht claimed Of 1.646' e6 engted set e.e1.4s1 from Mott ware 78I10]• tN1 oke primus booby 1 naufaetedne, or siker Wryerei, Sad sr/ eelns.ledled by de lasella.r, of way Merton far dlee1u or moils TODRT1I. T1.t In O. Omar mer pr1Wo falai for .4111.6 rot ea On 6emp1111 de.ete1mrtl lbs Ater .dnint pnmher korel.►rfers delerlhe/l Our APO .ii t4• .tela., prtilteln, imroa6i11e., 661 iplarttu+eu .l Shore named a161s its successors tndillene sed 61lldaelnni mtedor 1;m111 14 t1.s boaeda.fel of the odd mililob 166161006. Rod 14 Ser y,rlane,c16na116,116d,Co, eMF1r,erHher.il ibls 4sr•dee.•lath INF 6'a .hick .en tet ins.aio erisl as Deceiber 28, 1987 or abet rook I. fear *11016 tell, liber, Omuta, had, Un, 14 p.r,or Inbar n 6144 ebaIe4sur1l 4 proolisl at toad tad.elaiel door rho tem4 IS eretettt' 111 111111 ambled 1s ins rested sad sterid *ata testes tar mining, s6tt111.ra6 Aro .111.1166116 .fel 16 1101616111 41111. sick .Stu 1111rs e1 616 6r cuxenlaad rod drelalonn If 646 court.. And Or re Is r61tt611 jean lbs tondo boobs granted attedl 1 by 1116 'Aher116 of do Un;tel 6616er. rr 116(111tha 1.l Centrbe, th6 LAtlefalsre 11 1m m ee.nrlmo %reeky winged, eniolrlat autuAn111, dralum Sad Idler 16lgar7 4.414n1 Colorado FII szet111OIte WIiu to'. r, Herbert I oo or, PrnWIIt of .1.r V.hed erns of Ar111R1, bur cooed throe haws It N 1616. POW, sed the 8ta1 of Oa Centre Land Omco 16 be krreent6 aloud 0196* cadet or With ti Cllr of 9Fu1.1ntl6e,t►a 1WLkf Y-IUU l 111 mitto 146 Fur el over Lad ono MoaneddHe! 11.1 boadt6d and 118111Y .14 .1 lila 6.4.rird1ace of Ear Y-j11U Velied Mies /AP one 4radre�jtan t�f111 }d � Cy els. Malarnt:.,'.. R••rl:. i1. �rJ6:..i +'Y "••,L;•a...«. /� &161.1 t.1 RLCORDIVI Mod Flombir �..:: ' — 0;;;ti;dewC:+e7i:e+b • c. . err a -nn Denver 039704 —1067. 60 IWO tt deo a Amelia', tlr<tall !Io [oat theorprrrenls slpli rens, drettintt: WHEREAS, It paraiute .r rim tredttem of i>te Erika habitat at tie ;mita shame, Claptu Eli, titht tYripd.w, and letiiLlkn tUderieatal aerde, plea to krs depaeiled ltt Ili 6eneaJ teal O1 i n111w United SOW 119 terWleela d Ai rerhteratlk taetldbAre at Denver, Colorado, tttsrperikd h alk+ e#dnee, ,dray 11 Upon that the Shale Oil Syndicate, Inc. mac. June 39, £928, d.y raterned poi End Oat aertJ.whltgclaim .r imam, knocn ss the Generalilaig No. 9, General Pershing No. 37, and General rorshing Flo. 40 oil shale pincer mining claims, situate in Garfield Comity`, Colorado, described is follows: the Generalfiaig No. 9 claim comprising Tract fifty-five in Township five south of Range ninety-nine !rest of the Sixth Principal t!oridian; the General Pershing No. 3Z claim comprising Treat forty -tyro, said Townsl.ip and Range; and the General Pershing Hu. 40 claim camprieing Tract forty-four, said Township and Range; the premises herein granted, containing four hundred seventy -vino acres and forty hundredths of an acre. • Dcnvur 0J9704 ROW KNOW TX, That Urn It threrlare, persaeet re Shale Cit Syndicate, Inc., TO RAVE ARP TO VIOL* gild whine 'pirate wliat6aerer nelete 1111reuele btlen1t6e, mile the .aid end assivn1 forever; "olden nen146111sd 111M fell FIRST. ',het lhr trent hersir Rade h isobar. vale er lodes et quart: or ether gook la pate 6 tan been dleeeeral within rid HMIs .e6eq SECORP. Tke!a6ael4 61f 14.16.6 Ni reelable dwelt., 6e claimed or thew. Ir exeeeted tad .shored ken there pre THIRD. TIM the premises hereby nannla twin:, SE ether purport, lad end athne+kdred by lee local lies. II tly thrllee fir dlISltd er east 1O9R1Ir. That In the atm mfr preelde lutea ler +welded le 16e temple derelerwlfel t alen.ald, tared tested e7 Ne vldlad States rate At tali seer ,mining prelates' It1 .1abetefa deerlbedt • p +SU 111 the rliHHS, prlriieree, *mmaalti61. *end epeurtrhaetes of .Yaws named lad to i is successors Mins and rllp.lrllenee *wet. limill le the 6sladerlel el Oa add mle[np prentss, and le any 4,10ler, cinnabar, lead, lin. ciPtptr, er eller ealwilde dapell , .61x6 ear vhhl sere not Wren Ie mild ea December al, 1927. d or ether met, le Flare twirled weld, eller, alanab1!.Il1d, ala, or otter In the obste-deetriled Heroine at add 1111 -domed data, Um ea11 Io 1.16.6117 ath11 be held larded le say sewed tad seemed valet elide ler retain& 6LAt61htld1 di116ea end 444e4e11.1 lard In 'o en:ilea vllt sails water debt. ar merle rteataied dd derlsteas of Or comet. And thea la reserved fend Oohed. hereby granted seldhe td b7 the +sthedty e1 the Dared Suter. 1111711hleladoe Lr Calves, 161 Lgglaramre of Colorado allot or penile hereby graded. laretetar asemene,drateaI*Sad elhuma61W7 IN TR51164011T WREIIOP, I. Herbert Hoover, Mordent of he United 5111101! Mimics, bare carted thew tellers le 61 merle Palter, led 1lt. Seel el the O serval land Olfke Id N heemnle alired. 011111 ender m7 half, at aka c117 e1 Wesbiaalen, Or t R.'i4 Gil$ ill MAY 1a Not year of err told one thtasdnd day al else bemired and VHCii Y aid pl the I6depepd1Ml o[ the rra'sle4 sates see one t.64eed I4 f 11!FO to I}C Ry the Wellden4tti;.kRjY^:w431.w-`':)..'21`'•"" Dr .... a. RECORDED: Patent Re,r6er._..i.}a:a.L�r..,•• 2 NthERIMMILENIMEOMEAMMEO .e. Fler Denver 0:97I 3 d - YOWL TO MOW Otatri of Amwrint, lruall to Willa tyrse Pt:dents%Jodi rntnr, ducting: WHEREAS, k ,eHntnq of t4 )redHwr of It Ihrhwf Se.YNee of the lnited Stem Opfer tie, Tilt TShIpM. ed le[hftthn Irp,lemtand %ere% It ha kto ddpoeited lo Ifo Ceoe<ai land GIN onto Wiwi Sumo ate Cerlifleah of ay ReRheer of lip Lied Olke Denver, Colorado, reeomptied 1d met same, ...Weirs ippenn shot the Shale Oil syndicate, Inc., *am June , 1928, my net snd,tT for Ihtl rerl le ml.I.s chin or groom. ltnc;m as the General Haig No. 1, General Haig No. %, and General. Haig No.3 oil shale placer alining claims, situate in Garfield County, Colorado, de- scribed as follows; the General Nair No. 1 claim comprising Tract sixty - tan in Township fire south of Range ninety-ntne west of the Sixth Principal iloridian; the General Ileig No. C claim comprising Tract fifty -114u, said Township and ,Lance; and the General Haig Nu. 3 claim conprisiug Tract sixty-oee, said ''township and ?ian.e; tl.e premises herein granted, contain- ing throe hundred fifty-nine acres and ninotr-four hundredths of an acre. `—,Denver ON/b3 NOW KM OW YR, That ,here is etetefere, yuttuau . t e aleretaid, hereby staled by the UilI.d Slires .me the 4I1 Shale Oil Syndicate, Inc. , the • seer minter, yeealeee dettrinIngere d. seribrh TO ItAVE ANO TO ISOtib mid minks. eremhee rr .•Ill sli Ike ,Lebo.. Mhi!•cr., Imme.ld, s, ..d appon,irreea rel .haIso.rtr nstare iherranre helet=teq, imt. ehr fill these nerved and to its successors Grid ,niI ret fMe ere" e.bjMt motile!, ct. a the 1,, i4ilina. sal slip /A ien.: TIR%T. Thee 11. Kral bel. sale h avatar* metier tinily le the ! module, tI Ina eels aderie menthe', set to say reins sr lades a 'peter nr*Mare reel in glare h •� Ia, solea, [liable.lead, INcentre. or ether,, Mabee details%, ankh azar hits beef &matted militia told lmhs mammy d.ldsh wen eel ks►wato exist ea iteeenber 281 1927. SECOND. That Magid clop rile er fed a at rhe r rack la plate tearing da1d, steer, tiiamhr, Lail, try caper, et ether etiolate dopester, be 'Mimed of Imam to hon Ise abnead.esited prsdne at said last•aamtd dale, the same Is earnest excepted and minded freta theta prom THIRD net the premises hereby thaw he keel ailed to deg misled aid steraed fete[ ,tetts fee astela, iutcettrsl misstatterlrlg, or other p.rpesee. ae ditcher and r.ittroha *sod In coaarittu with tat* water Nita a snap be retegniud end rtbne.l.A .d by the oral rear sad depLlem if the matte, And tiers 1 d ham lbs lads hereby {naiad a mal s! sty theta's ter ditches or eau sled by the tv167dey el lie halted Butes. TOuRTri. lrhu In tat xbet £ neap kgltraqu by Congress, ike Ltitpatnn el Colorado may prarrle tela ser warded elites sr ptaailets hereby grated, laielrl.c eanm►its, drahite, sed ether ntntsett milk, ro tbt templets derdaprneet IN TRSTIb1011Y WHtREOp, r, Herbert Hoover, Presidio el Pte United Stein of Amaro, have ceased "hen kilns Ie be made Paten!, fed the Sed el lee O, aunt Lend OR.e la to hereunto elheee. GIVEN wader my hind, el the City et Westtiegton, the iW111. 1'I'Ullii lad day of MAY la the TM d fpr raid ace tteaund sloe kptdred end .IRI 1 f Y fad of at redepende.a of ike Veiled Clete* the emu. ta lie rid F}/1Y•ff011N011 r y ,-T By the President: . L_sf/.A.: ._N�{i...�.'t_,—::'. :Lrrr. :1.L.d.1.._. Er `..,.LeteCd ... t .Lr d�s exp Li RECORDED: E11.1111 Ipemta..... r, Es..e.spasm _.,.r ) suoimetimmetimaatill - 2 ita Den;"cr` 038672 MRfnates of America, go all Ie allows Mess parents r11a11 rano. dresihrp: NNt1IN3, le immure or Ile pm4dooe of Ih en4ed %Mu .f II.1hJIM Sian. Motet Sh, TIN, Tllryt.,e, u4 f.ihl.Mi upel.■Mui It.rrn non nu Nun dgerlind le Endo Card I.wi m14s of se eea.d Stets W GMfeele of tie Woad Ostend Oars It Glenwood Springs, Colorado, nw+,erl.d y.a« erldMui aiwyft.NranAnt the Shale ail Syndicate, Inc. ma.. June 21, 1927 kr, Wee d joy fur Ind norwual.lg dam of maim known as the General Haig Ho-. 7, General Haig No. 8, General Haig No. 12, General Haig Ho. 13, and General Haig No. 14'o11 shale placer minisg claims situate in the Mount Logan Mining District, Garfield County, Colorado, de- scribed as follows: the General Haig No. 7 olaia comprising Traot sixty in Township five south of Mange ninety-nine teat of the Sixth Principal Meridian; the General Eaig No. 8 claim comprising Tract fifty-seven, laid Township ani Hance; the General Haig No. i2 olatn Comprising Traot fifty- four, said Township and Mango; the General Haig No. 13 claim comprising Tract fifty-six, said Township and Range; and the General Haig No. 14 claim comprising Tract fifty-eight, said Township and Range; the premises herein granted, containing seven hundred ninety-nine sores and fifty-two hundredths of an acre. 1 1 Denver 0:18573 NOW [NOW YI, ikal Thin G tbenfR1, lunut 0 Sbnle 0U Syndicate, Ina. e OAta014, busby praat14 by the Vella [1t,o sato tau 1444 W of allagpadai krolab.lw learDs44 TO HAVE A110 TO HOLD 1414 lellg ir.mG1y ae .10 sit lb. 0410., 01111.014 Ius.dWI, cad yysrtl+►nNa l .6.N0ee.r =lure th1110a1. blteegt.g, 0.10 tee aid it abPa maul x1410 its successors 144 neigh 1.14.141 WW1 14111144141. 16 4* j/110. iHobs mad atipoldlual JUST. That the gnat tartly math A intAat4 latolu 113111 1. Ai boma/u81 Of lie all alaAg I i14,.,, sal 11 cap .ass ,r Gd.. of .watt or Chu oak A Out 4s . oUter, timber, Gad.4t4.Nat, 0r "Mr 1.1.441. depata,'Wok may bsr. 61.1 dla.arard .111.1. said timid eaisattom Wad "m. cat 11eta to Ida ►a Apr it 13, 1927 MOND. T141 ,hl.14 ay ..I. of I1. .1 eilesbtt dgnile, he Mosul or bay.. is ed llnpted 014 .1e1.dd 80n 11.14 punt& T1110D. That At pit mills bendy ow ,4an.tatlr11114, .f chit l•10011, sad t1. ..4 atkae4Gdged !pi IM Wail Amigo .1 wei IAereea fel dilihiu or rant.. VOBIITlt. That .4 the stump 1417 /wade rue.. lir raking the 10141 t$mplae de.ektntnt 1hlr et chlor totb is plate bitting 0l4, •14441, da..barr 1.11,141, apga, H.tb.t ■ tie a4on-4.ullisd lr.mi... t 144 Gsl-amid duy14. elms A.gntly 1 M 1014 sabpel to may 0001 ad atllrl rater x,4111 fit ability agileltaal Alma ad n1rtroks 4114 14..slntlfa reek mock "alit tI&8Ii N ay 44 0011104 delilo,u et lie ten& A14 Meta U nand bon As ludtIntmly 00114 arlj►1 d by ul..tha.11y et 41. t ll14 alta. West.11.. by Csytsau,.k. Legh/atria 41 Colorado meq 0t pr.mlbi• limb/ ri.ad, 111.1.4=4 .daeV.ls, d.lum a14 odor y1M141y u1ae1 11f T[ST11101[Y WH111IO1, r, Herbert Hoover, 1411.1441 0110 0014 1111.1 .1 Amerk., 411 01.14010 loud a b4 wale l'at,.t,.14141loot il 110 Oulu! Laid Me t1ILO ,1111111. alma oiTlx 81441 m! 4114,11 as City of Nn►lagl,m, t►. IV/ kN1Y•FUU RTO 413.4 IIAY t0 .ko year l .v Lu/ .1. Amami ala 1,.4red 114 ppm TV 141.1 the y14ete14sle oftb, VOW 5111s1 the one 1..dr. mfd „MIT- OUR [p for 3raW.a1 a� S _ :CLQ. 4harM d i4 6wllyd l j.a AICO11II101 311014 Ru4kse_1_': °j_:'.+.t }••.L' Denver 039571 »tat i of Antrrirn, as nln to WI+ons Ilrru.i+rrrmti ~hall none, brerfhttet WHLIIEAt, le forotanc' of Il. golden of tie t&ed DIM.: of Os tight Sinn, Ciephr tN, min nl,gd't, eel Ielitlellee esytle�mld limit, there los ben dryaslIed le lie Gotnt lad Wk.'din masons tie terilkats of tie 411/ go Lnf Mkt NI Glenwood Springs, Colorado, ottopanitd by alba Moot, •Snehl11 wart not the Shale Oil Syndicate, Ino. ma.. June 21, 1927, dull emu- mud ply for tId wish' alal.`cram er prooisa. known as the General Joffre No. 5, General Joffre No. 6, General Joffre No. 7, General Joffro No. 8, General Joffre No. 9, General Joffre Ho. 10, and General Je£Cre No. 15 oil shaale placer mining claims, situate in Garfield County, Colorado, described as follows: the General Joffre 1:o. 5 claim comprising Tract one hundred twelve in Township five south of Range nisety- ei•-ht west of the Sixth Principal Meridian; the General Joffre No. 6 claim comprising 'Tract one hundred thirteen, said Township an: Range; the General Joffre No. 7 claim eanprising Tract ninety-three, said Township and Range; the General Joffre No. 0 plain comprising Tract ninety-two, said Township and Range; the General Joffre No. claim comprising Tract ninety-one, said Tranship and Range; the General Joffre No. 10 claim comprising Tract ninety, said Township and Range; and the General Joffre No. 15 claim com- prising Tract one hundred fourteen, said Township and Ranee; the premises herein granted, containing One thousandth acres. -'''117;70-07—(7-571 3 isOW p:NOW ye, Th.1 thus Io rheidere, psrtusk ewe a Id. ►.rely model by Ile Salted butte me the odd Shale Oil Syndicate, Inc. 44tan adder bobber berelabefore doodler; TO IIAVC AHD TO HOLD rale tilde, }ted dos shit all Oe elahu, pddLdet. laed•albft. and separitaueel of mholmeser meters Ihenaato reargue,, mob the se l• Ober. nosed +ml te i t8 aUCCeaeor8 mad eedi,as braved ,.bJret Ihelm b Our le- iodide's rad itieatetlust FIRST. TIM the ,rant lovely node brae e.tt4or doily to the b4ea4adee of lbs talo nails/ paslem, and a sap valet or lade, at goer[: at Mbar mak to Or* gg1, .Vere, tlaaaber, wee, tin. ceppy ee eller ratitble 4oyedls rbkk veal kms beep d' rtd rRhii ,aid !hallo tubs and Whet nen set Mown 40 oche ea April 13, 1927 SECOND. Thet,leald any tela or hi or ether ode to 'lava leering old, Abet, el , Led, dal emir, or odor ratable deposits kr d atnied ee knows t f l hIn the 4baa44ea1b414 premier It mall [embossed dote, Ike moo la .openly ..meted mad emtadrd treat these peed THOU). Thal the Fren,teet Nub, - ,ball M held ttb;erl to up Togged old monied saber .loll ter atalq, a,de.thlrel sanelealader, ar enter parrots*, eo Jj lShhea gad raters:ire rand In eenaeeltma meth ends trite 1j11e dB out Y» reee1Yl14 and meb ..1t44e4 b1 the kcal lane, f mad daeldass al dm teem'. Aad Mere 1 ne,nid trim lb. lamb M.ab Loafed atkkl CI trey Ih,+.aa be Odor ar etptl I44 by the sallwill el lke trolled distal. FOURTH. That le the aMea Laistatki by Cleave, the Ledtetetrre gl Colorado sq protide tutee 1st nothIn, t J delft or Fre Wan h.NOFPasiad, lastcol 1116.4.1% dtamp, otd etlt Metaeuy sums t6 be corollate development 1 1st ra4TIHOaT WH,RZOF, 1, Herbert Hoover, iirettdml of Ile trilled Steles et hmeAbl, hue blond these lett,, to lot soil Prteet,aad the 4*.lal Ila Guard Lad 01ce to be lineal. aired. O 14141 under my head. at ,ho Clic at wmklaslee. He 1WI.h 1Y•IUUHTR d ay et ikL1P is tee jeer el i.e Levi one Ib,,u.d n he Mailed gad THIHry and at the ladepaadeam ebbe 4111,4 Slats the one kendrI dd :fkf1Y-f URIC ,y tla Pfn1de11t (.i�a i.rs %G. .L..L! . Ey.....R rl.SraarU V .l ItICORDEDe retest ttere►er...-S'• ._ ...»��_:.F.....�....�..... dFdwdee_.... loa { CrilJdll f J •r onmanimmossommegime sea .-fie dearer 038595 1 00 &nth »tutro of Amain, min, ea nit da OtsFront fyne preagh sl,ol€ tome. 4 reetleeg: WH€AtAS, L mime elIh Srerhteh d tie furled Swum d ale Urkee S4rn, CAi,tlf flea Ills T Irrpwwv, sed renlehlks soeprewe.td Iteral*, Ilan Pal WI dwelled le n1 Geoid teed Oen eflte Dated stars IFe Ceelldeere or IMSedrehrdIto Load Ogee Be Glenwood Springs, Colorado, amanita 1j leer +ddaee, ataxy 11 erdr.ee Oat the Shale Oil Syndicate, Inc., Noe June 23, 1927 defy eget sed w ler tht rerterrt eletgarlrn or /raeelY, known as the General Pershing No. 18, General Pershing No. 19, General Pershing No. 30, General Pershing No. 31, General Pershing No. 36, and Gen- eral Haig No. 6 oil shale placer mining claims, situate in Garfield County, Colorado, described ae follows: tho General Pershing No. 18 claim compris- ing Tract seventy in Township five south of Range ninety-nine wrest of the Sixth Principal ltaridien; the General Pershing No. 19 claim comprising Tract thirty-eight, said Township and Range; the General Pershing No,30 c]aia comprieing Traot dirty -nine, said Township and Range; the General Pershing No. 31 claim comprising Tract Flinty -nine, said Toanehip and Range; the General Pershing No. 36 claim comprising Tract sixty-four, said Township and Range; and the General Haig No. 6,olaia comprising Tract sixty-three, said Township and Range; the promises herein granted, containing nine hun- dred fifty-nine acres and sixty-two hundredths of an acre. JJ tblafr R,it XllO* cr. It„ .l,le ro el.ltt.rr, forlorn, t. Shale Oil Syndicate, Inc., TO !IAV)" ANO TO HOLD aid dalnd premiss .hats..... .,airs turn.!. baleadtaI,..Io the rid and neaps t • Blatt seeerrlalat, to dm 10 TIRST. 7►g the drag hereby medals match mine err Soda .t touW Of ether mak 1n Nit. b lig,* bite &omred within hid 1tM11e iubaso SSCOtID. That should any To Of lode reuabh depslt1. W darned er howl ri ueeplad 1.4 arcaded tram Mill pant THIRD. Thar ih. WW1.. iamb/ manefiHerlq, err Gaol pulyeees, and and ■tkae.Iedted by the local lea.r al any Ihormn lar dilebr. er.,dile POORTH. Thai In IYe at1IA may provide pores for .erti.a th to Ito cambia deettopm.M s atau.aW befell treated by Ito UdiN Stat., IMO tho said stet mtatatFoibles karr[abahr.dtaribIdI or with all Me efe)it, ,Aetled.s, In.lathes, and g4artas"{ten .t stare aamei and to moat and "O,alella.et .,terser 11.5Its to Ito beeslies of Ole Mid "staled peemhae, tad la a.1 .11,11. chanter, Ind, iia, tepp.q or ethic eileable deplp, filet may .h1"k Were nal Ano.. le ashen{ April 19, 192? its aucceseare or other rack la plate 'oaring told, safer. ehaabU. lead, I!M Misr, It eller a Oa .bort-i..tibod pnminit at sold 1n1 -maned dale, et" .,n I. eniniIS Ann be kuW ..Witt 1a any meted and staved motif dishh tot eitnlat,.tela.dhar.l Mhos mal e1 In mentals. Wilk emit .air Acle es may laueo.altld sd dochtens e! It. oath. Ant Overt h M reset 111 lends hereby teamed &Aeht ed by the n[harlly et rhe United Ssdra. illy trtirlstad by Canp.,., the Ledlahlere.f Colorado &etre ot ,remdrte hereby partied, I.retrind a..rntn4Aln!NL*, and ether .demean arena IN TRSTIMONT wIi i$O?. t Herbert Hoofer, 'Wildcat al tla ltatttd Stake of America, ham and Theme tellers le the nada Went, and r1W Seal of O. Oaoli Lett Odea Its ba hereunto .lkem1. 011E1f under my hand, it lfe Cly Of NnH4Ll.a,tb. 1 WI. hi V411111'1 t MAY 14 rte year g our tad ens lbnMad I1,I111Y 111 d11k. tadeyeddeatt 0411 %hid1ameIleone Anld1ltd Fir 1 IIIITH !WithamT iha Trglder--.a•. .�c.•rw� .._... lay_ -• 4P.Aak✓i—mca.saam,L.6�n%`.f...:2 ,Sara., doral atm ►.adrod and RICO.DfOI Meet J I l.L.J --i- 2 •1 4.111 Denver 039697 e. a—trrxe, rttte1 Otani of Amnia', 'So all to Wilton Hump prettrltlsdlnWI rent*. Itrrrlhse: i.; WHOAEAS. S. perteann .?U.,ftavo of 1M Aedtsed reMes of tIe Ir.H1 Stales. Lbsprer Sia, Title TNrtr-0„e, si.i,Aldetke st,pteseala Ilan,, !bees ha ben de/aired 1. tis &srd tud eek.,rn. Udted Hetes the ekaal ate atthe Bute r erihe tsnd alke at Denver, Colorado, aeampa.,d It ,titer eddaetr xtenAr It ,ppean Om the Shale Oil Syndicate, bnc. &Les June 29, 1929, d,tr wow and rq r., lilt we, prta ha, known as the General Pershing No. 14, General Pershing No. 15, General Pershing }+o. 16, and General Pershing No. 17 oil stale placer mining claims, situate in Garfield County, Colorado, described as follows: the General. Pershing No. 14 claim comprising Tract forty-seven of Sections six and seven in Township five south of Range ninety-eight went of the Sixth Principal Meridian; the General Pershing No. 15 clai, comprising Tract forty -64A of said Sections six and seven and Sections one and twelve in Township five south of Range ninety-nine west; the General Parching No. 16 claim cow- prisingTract forty-nine of said Section seven in Township five south of Range ninoty-eight seat and Said Section twelve in Township five south of Range ninoty-nine went; and the General Pershing No. 17 claim comprising Tract seventy-one of said Section twelve; the preniees herein granted, containing six hundred forty acres. Denver 039697 HOW KNOW TB, That Ouse h Iterate., roman] le I a steeadd, hereby panted 1y Ike Vetted Stales rete O. ea Shale Oil Syndicate, Inc., TO iIAVE ACID TO 110LO sold erial04 remake whetIH4et nature thermopile hetei gh% onto Ifs sed end unlike fateful aa4Jrtl naerlll1Yss 10Ite laU 114S1. Mei 1ha trent hent, sate 1 tnlrk seine at plea of %eerie at elks/ reek in Aka t hoe* horn discovered within tall gnats matte% Inter ininiap meths' herrinbltata deuri►dt er with ell the rights, Tldlegre. Innen 011,.. tad ,pF+1.t4.11001 a1 *teen named aid to its successors illehl Inn sllpahitmsl ,,levier MAI to Itis bed.driies a! the slid editing rle,nlaea, and le any A, Over. .ian.1ar, lead, tin. eerier, or awe Inked, deposits, w1i1Jl Map ahkh were not hoiden to stilt en December 28, 1927 SECOND. 7\al ebe,ld ear vein at - t a it ether tall he plate 1esd.g geld. ilthkr. *1nn14ar, lesd, tin, coipere le Nkat valuable deposit% tw .limed.. tcaan N tin the rbore•desieibed yt.n T.1l al raid tall -nine[ 4.10, Ia. erree la r1FeeNfs cetehttd 444 .rekded Item Theft Feels ,{r THURO. Ther the promisee t*le4! 1hall be bel* gelled 1, any rusted tad Herold rater rights ler midst: etrltollweal mae.Iula,ln1. et ether 1411111,1t.a ` *41.1■ sad reservoirs rated In eadlelri0. with High Waite ILMI..4 mel 4, rtatnllad and Htsowledrod 471he local taws JI`+' and decide., at she tooth. And this Iv lerelrsd ham Ib* Med. heresy granter ■ right or way Morgan kr ditches or eta* - L [ted Ly the authority of the Vetted RWu. FOURTH. That In the aka j/91L testees kgiafallon ly Csntrese, Ike t.etld.ture.t Colorado may puerile molts ler working ` i mare or reindeer harsh; 11,1111111, I..0,S4* 41.4040 Ms, dralh.jq and *Mu It mein! 10 1144 .eaplete development In 11tlrimodl Wiiisrop, I, Herbert Hoover, !risldect of the Mod &Itti of Maritza, hoer eeeset those Iettetn to k aide Patent, rad lir Sea Iof the General Land 011te to be hereunto [bred. amen ender KY hiad,41'4 Chit el Weib1. ts.,lie iIiiST As, et JULY in the ye.r.l oar Leta ono 1►eavaed ohm hooded end ii11N1 r end at the Inelereodrare of the Onlled Stales the sue hued, end orf iY-IQJIPIP Op the Presidenti p..J..,..�r...J`.t..XAi»,...,...A-.�...r._...».t..:� Li 1'., ' AtieFg •.J<+'wln rj 9r Grad LwJ 4ICOADIni Palest /footer. iOUSEi91. 2 era 1.1.I 4-110M, Denver 038597 Pr IWO Otatto of Alluvial, tra all to talion their peesesetr WW1 calor, @Sreellntl: WHEREAS, h fur enc. of Ile prorleool er the Roiled Stably of OA Ueltsd Sfyes, 6bptot Si; f$fe niprplh% 1.1 ItgI,lerne sopplemetel Over., Iters Sy bete d.potltel le Ike Centel teed Mee .ti U+Ihd Stele, the etiIffeate of Vit Rtpidu.f N. Lied Oficial Glenwood Springs, Colorado, the Shale Oil Syndicate, Ino. eaefepeeied 61 Mho eddeea, Ortiz II 'Hem fid v..e June 23, 1927, Adv eget eel pep for teat wish Wang del .r pinion, known as The General Joftre No. 11 Oil Shale Placer Xining Claim, The Gen- eral Joffro Mo. 12 Oil Shale Placer brining Claim, The General Joftre Ko. 13 Oil Shale Placer inning Claim, Tho General Joffro No. 14 Oil Shale Placor. Mining Claim, The General Pershing No, 1 Oil Shale Placer mining Claim, The General Pershing No. 2 Oil Shale Planer Mining Claim, Tho General Per- shing No. 7 Cil Shale Placer Mining Claim, The General Fershing No. 8 011 Shale Placer Mining Claim, The General Pershing No. 9 On Shale Placer ing Claim, The Lucky Strike No. 9 Oil Shale Placer Mining Claim, and The lucky Strike No. 10 Oil Shale Placer Mining Claim placer mining alaias, situate in Garfield County, Colorado, described as follows: The General :offre no. 11 Oil Shale Placer Mining Claim claim comprising Tract eighty- eight in Township five south of Hango ninety-eight west of tial Sixth irin- oipal Meridian; Tho General Joftre ?,o. 12 Oil Shale Placer Mining Claim claim comprising Tract eighty-seven, said Township and Range; The General Jaffre No. 13 Oil Shale Placer Mining Claim claim comprising Tract cavity - two, said Township and Range; The General Joffre No. 14 Oil Shale Placer ?pining Claim claim comprising Tract oihlty-three, said Township and Rance; The General PershingNo. 1 Oil Shale Placor alining Claim claim comprising iraot eighty-four, said Township and Range; The General Pershing No. 2 • 1 Denver 038597 Oil Shale Placer lining Claim claim comprising Tract fifty-seven, said Township and Range; The General Pershing No. 7 Oil Shale Placer Mining Claim claim comprising Tract eighty-six, said Township and Range; The General Pershing t;o. 8 Gil Shale Placer dining Claim °lain comprising Tract eighty-five, said Township and Range; The General Pershing Ho. 9 Gil Shale Placer Mining Slain claim comprising'Tract fifty-two in Township five south o[flange ninotr-nitro most and said Township five eouth of Range ninety-ei; lit seat; The Lucky Strike No. 9 Oil Shale Placer t;ir.ing Claim claim comprising Tract eighty, said Township five eouth of iirunge ninety- eight west; and The Lucky Strike No. 10 Oil Shale Placer Jfining Claim claim comprising Tract eighty-one, said Township five south of Runge nicety - eight rest; the premises herein granted, containing one thousand seven hun- dred nineteen acres and ninety-three hundredths of an acre. 2 Denver U38557 IIOW 1C$Oo Tt, Slut there Id sbtii1r*, !truant 1 Shale Oil Syndicale, Inc. TO BAT! AIID TO HOLD 1,14 slelai 711 .t ueuvet avert 1h.Nade INNnell sato the led B14pt tar.rar; rublett vdtmtleloss to the IN 7155?. T1.I Ile vomit limb, mete la watt, veiny or4dee et Writ er ether tickle pia.. have bees discovered WWI. uta 11141, sober; S5c05D. flat *..ld any vela ee led • iluable doye.41, he ttalmed a 1104.0 le emoted 116 *selected hem Men 4141. TRIAD. Thai the r1mlram hereby mead.elerl.4, Or other piteous, 1 e nd etbse.ledlad 1y the log live N eray flute. let dAdu e - TODITIi. Tial in ale eine may peddle eaves ler stating l to the eemplelt detde7el*nl tarn dtnuld, tarot, 'ratted br qa Olite4 51.4.e ante the tall Id Pent 'midst yeenit.e bevel/Wm 4.14141.41 l.tlet .141 ail Ilse 14lbt, palriteuee, Imm+aid.+, sad arpurl.man■ at pi atadendto its successors i undtlle04 ad ,rlydubees 111 omelet Mahe re rhe lavnl.rles .l li SAN .dale" pmrham, and to may Leu, egret. clamber, ltd, do, eppr, or vtlrr 111wb4e deposit, .11,11 rosy • end 11111 .rte stet Mosel/ arida April 19, 1927 t SF ether rest le pate beetles 5114. dl*er, cluster, lead, tin, meshes *Mae '.11111. do aaredeuriwd mdse et told TLat.psed dales Um .ase 14 .speed, ed shall be Ick ..hied to 117 vested sad accrued .atm *11111 kr railing, .atii.1Uoa1 H dile1am nail roomed spud I. Oda .111 sub .aletrieste 04 say be r.t.PH1Id ..ted ds1414eti el the carts And Hari to nailed hes Am hear hbrbyveeted •atilt ltd by for .1eh1elty el 114 II shed Daisy. rnute tp4leli.c by Ceettess.Ile Leatelalvte et Colorado g etaim.11 premien hereby greeted,1a*d14.4 eaum.11., 4raben% sad *Der 1.nsssr1 rseese lir TesTIKONT v11EAAD1, r, Herbert Hooter, President et Ibis Untied Dose e1 generics, ben and Dm tetlm te be aide P.1..y sed IM Seal el she Genesi Lend 05ee N 1e imamate allseds own oad.r mr ls.d,,1 s. city of F.sil.pia,11. IWf NTY-THIN) dry id hi ti year el our Led 111 dolma' THINTY Lad el the ldep•aran of De ■1e. 1.14114 and 1111141 81.142 110 ..e larnk .116 . .411'I v R(Iji ITT the fMpl411114 Yi:'1'.r... •r'--'�t'"'.r S. e.G... 5ECOAOI'Ti1 V.ttMLSoda .111189.1.0 1 �S ttf<%i S era k-ps, Denver 339697 I" . 4-10M. aIlit tntrit'tatro of , nitrirn, Qa al[ to wham lheer Oftletal rldnll ralnr, titre, Hits; NNEREr+lr hr' tonnage et elepnrttleet of Ile Ratite, Stiletto d the Ualnd Stetre, Chaplet Sit, Tttie ThYtg.lee..r hg;elatiou teppieaeattl HnH., tine Wu late depetitd le tt Weal ltrdMei got tkikdltttrtii.CeUxnteoflheltrgt,trr,rgetndefl!teit Denver, Colorado, r .r.pe.td ll ether erlienr, therm, it metre thee the Suttle Oil Syndicate, Inc., male Jaly 1+r, 1930, at we cad pal he net whim Wee/globe of Me�leet, kno-an n3 The General Haig No. 4 Oil Jhale Flaeor t;inietg Claire, The General H•tig No. 5 0i1 Smile Placer E;initg Maim, The General Pershing ::u. ;>u Oil Shale Placer Lining Clain, The General Pershing No. :33 Oil ;iatle Placer ;lining Claim, The General Pershing No. 34 Oil 5iale Placer i;iaii,g Claim, - and The General Pershing No. 35 Oil Shale Placer :;iuint; Claim, oil shale platter minim; claims, situate in Garfield County, Colorado, doseriaed as follows! The Oerivral Hik:; No. 4 Oil Shale Placer iiiuing Claim claim con - prising Tract No. sixty-soven in Township Filo south of Ea:e ninety-nine west of the Sixth Principal Geritlitin; The Duerul i,aig :.c. 5 Oil .:.Mlle Placer ,lining Clain claim, comprising Tract No. sixty-five, said Townsaip and Range; The General Pershing No. 32 ,Oil Shute Placer 'wining Claim claim comprising Traot 1o. seventy-two, said Township and Range; The General Fershiug !lo. 33_0i1 Shale Placer Mining Claim claim comprising Tract Io. seventy-three, said Township and Range; Tho General Pershing No. 34 Oil Shale Placer?lining Clain cldim comprising 7reot No. sixty-ciGilt, said Town- ship and Range; and The General Pershing No. 35 011 Wile Placer killing Claim claim comprising Tract No. sixty -nix, said Township and Runt,e; the premises herein granted, containing nine hundred fifty-nine acroe and sixty- ei,;ht hundredths of an aero, . Deaver 039099 How x u r, TN, Thal there lr .hetefnte,,Wien; re Shale Oil Syndicate, Inc. 411 TO HAVE AND TO HOLD aid ofinkft ,term rh.atter,cr paler, tltervnnts hclneenZt nate rho 62 led asd*ns tartlet; subject, atlertkdiss, to the iIRST. Shet 16 a /,net hereby +rads i•, until wins er tide. et ioutr Of ether reek fa ,!tit Sa.. 'Ken dine/tad CI11Li reid [folie table SCC; HO. ilial rlmidd any rein or 1e sile.bte dcrn.:1, be rt. :2rd ar 631020 ercrplyd'red rattanr•i 11•00, 1‘444 pre. T1ift:D. T1:V rile prem!I*a her* , a.ai: :r2::•• ,n. r.k.rrtip.c -, :eC : rh.aw'..r,-! l.. Ile: ter -t lay, of say there's of ern POtCT1i.:h; t 41 d:* ahna Cray Pi ee:d, on:. :et xe:1i?1 10 the temple:e darlepme,t a aTafes.W, hetet? pealed by the Nailed Slaltt ludo th1 tald tar m1nte3 sremhee herelnhttere distrHlal1 r rhh 611 tha rlpjH6, pdrlltret. Immsnitiet, end apyarfedtlNs sI .herr reamed and to its successors 'Milian' and stipaladagt exterior limits la the heeaderies of Ne tali mining peoOt*fl, and t. 1ny J. anter, ern,abar, feel, ell, Capper, at ether/0124410 deport% *lith may .d.bkr etre sal known toDial .6 December 73, 19z7, a 6* *Der reel' le Ogre beads* Roll, silver, cinnther, lead, lin, tayprr, or ether :11,1,. t}e 414640 d*.n. , i pe;xira .1 aid f334•00e.1 ,l.,., the same is eepre.dy Chea 1ra hold 44b1,c1 lo any rea144 and seemed 61101 dlhta ter edging, .jdtailurel, •!tlih[e s , i rrfrrn:r1 MO it ene2'2J *6 roll 2.611 6614 a al:1114.o rod he reacaf red tied darter.%.1 the tendo. And Mere In reamed had, tie load t hereby iranttd a 01*ht toil by eke s.4nrtiy of eta Unh*W G:Maa. every U•, featlen b' SR.yr^et, rte. LC lat.re rt Colorado a etal:n .r p,e.:4se h-reb1 I:rented, leveeing oatmeal:, Jf:lOge, 16110111*, n.ie11141 m4444. errTretntlnFrerrlt;trer,t, llerbert leo ver , f4:a'deei 41 t.,r:Inhry Piet, of /,.4di*, pare 4401(4 Ih40 bete.. to he meat Pale lf, rad the Seel ,f the ncoeral tam; 4142*, 11 1e 1.ereoele elired, *21V1[H Rioter my 1: nd, e: the City 01 Tyoildor:eee, ile ' t' ' ' ' ... I11 1.1•;1:1 11 is 1hr yelr df tier Lard 62.1hda11nd I"IEI l Y mad at 111 Didt]14d,.e..i 6. United Srttr0Ee lee Ilondrdd end f II !•S 11 Iii Hy Dr....• G.'L!� jLt!_�.(!,•.�... ..... ._F..'.... ,trnMro. Acbn� RaenereidaG.wcllwyr}ire dry of nine hrn0nd 1.d RICO *. D. 19icnt Hamker..... ^lis?.41 'J ,4. COMMIMMINIKI"regsgef MOND .to 1..Nn Denver 0397'.» a -11tH% �S a Otates of Amriiru, $v all la lolpam f haw vet Hilts shag mum Bmlluu: NMEREAT. Is mows of the prcdern, of Ihs Rnhed Slshn of flit Uated Magi. Ohne Sir, Tide 1rn,•t+.e, ed IrRrllatLs np,kmtntd tient*, line Yee bels depselksd k On Weill LW oAlaorrLeeefledMan kl.Cntrt,,leofiYo Rgidirsftle Oiler at Denver, Colorad0, egoapietal by other Whom detehlllwan tial the Shsle Oil Syndicate, Inc. dd. as June 29, 1928 dory *Mg poi f., tial ohremklsgehTi of online. known n3 the Lucky Strike No. 4 Placer giving Claim, 'Lucky .;trikc Placer ;dining Claim, Lucky Strike No. t Placer Link.: Claim, Lucky Strike Ne. 7 Placer Mining Claim Lucky Strike Ho. 8 Placer :;dining Claim, Lucky Strike No. i+l Placer ?lining Clain, Lucky Strike Po. %2 Fiacer :9iniag Claim, lately Strike !Cu. 4 Placer ;.;fining Claim, Luc:.; ;trite t.o. 4:7 Placer Lining Claim, Luc;,y Strike Nu. .8 Placer 1:iui6g Cinim, Lucky Strike i:u. i ' Placer winin` Claim, Lua.y Strike No. :iu Place:. Linin Clai.e, and Lucky 'strike No. 32 Placer /lining Clain oil shale placer minis, clkira; sitnatL in Garfield Cout:y, Colorado, described as follows: the Lucky :_trike :'u. 4 Placer f aint: Claim claim comprising Tract ninety-four of Sections twenty- two, twenty-titrtse, twenty-six, and twenty-seven in'i'ot ii hip five south o; Range ninety-eight west of the Sixth Principal 'meridian; the tacky Strike No. 5 Placer l;ininf; Claim claim comprising Tract seve:rty-five of said Ceo- tiona txonty-two and twenty-sovon; the Luc,•.y 3trice No. o Placer i:iairl; Claim claim coiprisins'lract 3evecty-:rix of said Sections, tworsly-two and twenty-seven; the Lucky Strike Yeo. 7 ?lacer :.linin,; Clain clai,. ci iprisiug Tract :seventy-seven of Jeutionr fifteen and twc.ity-twa, said Towne=lip and Moire; the Lucxy °strike "'i. 8 Placer :;iltiiic Oirli!e elaio Ctti^l�'+rltli'SY, Trreot seventy-nine of Sections fifteen, sixteen, tweet,;-onl., and twenty-two, said 1 Denver 039700 Township and Mange; Lno Lung Strike No. . L Placer ;linter; Clain claim comprising Tract soventy-Cour of said Sections fifteen aid tweAr-two; the Lucky Strike No. 22 Pincer ;;inint; Claim claim comprising Tract seventy-cif*.ht of said Section fifteen; (the Lucky Strike No. P,3 Placer F Mining Claim claim comprising Lot eight or said Section fifteen, Lots two, three and four of said Section twei,tj-two area Lote ono, two, and three of said Section twenty-three;) the Luck' Strike No. 27 Placer wining Claim claim comprising Tract sixty-seven of said Sections fifteen and sixteen; the Lucky .Strike No. :.B Placer Minim.: Claim claim compris- ing Tract sixty -rive of Sections nine, ton, fifteen, and sixteen, sail Toweehip and Ratite; the Lucky arias No. ;, i Pincer rainier Claim claim comprising Tract sixty-six of s:ti4 Sections n:no and eixteon; the Lucky Strike Nu. .J0 Placer irining Claim claim comprising'iract sixty- three of said Section nine; and the Lucky Strike No. a Placer .titiining Claim cldim comprising Tract sixty-four of said Sections nine and ten; the premises ',wain granted, containing ono tIousand nine hundred forty- nine acres. 1 ,e Deurr:r Jn701 sum X OW TS. Thad three h therefore. 'mead Shale 0[1 Syndicate, Inc). TO 11ATL ACIP TO HOLD uld etheal }red .teteseaer earn Owned, M1eeds& doled* add ant scalene fetter,: ee0Jeel etµdlekaa to eke fe ytRST. That di. tote kinky hada Is tette rein, or lades el 4>'ern of other reek Is plait hate kern autttrtd widen este eels tib setC0111.. That ehnrd any rids ■r reimsUtr depeilti, he Clefated 11 kna.o ecce?ted and a 'credal frets these its TpMIRO. Thnl eta premien tut euauhek dad, at ether perpereh and arkie+fedora by the 1•011 11 el day thereon far dilthee or Se IOCRTII Thal 111 On e1 may piortde ores for ..Ade *Otte aoreehtle deTlfelre e afereald, hereby tatted by the finked Sten .n1e et. Ted seer Wee' treil11s kerenberere deierlkedi tr Wet aL Ike dtk1T, pdWQege, Inntsedre, end annrletanea e1 &hese dared Aad 10 eta successors @dittoes end sdpdtttonei e.terlet !knits ti the NuidIAo a1 the ufd d.1.d Heraltal, and le any attest, alensbne, k,1, lin, capper, or Ntet aeesbtl dope% which way al .hkk nets ant louvre to extol on DECO/OMIT , 1627 11 or ether 1111 id pl11Obaeeini dell, 'Rum e, kali, On, topper, er'thee 'kid Ike .Men-de'ttlbed:rtndles 21 u11 Iut.nimld de1e, eke came h egnpry 4 Asti be held gulled le tidy Tooled and accrete .seer riehle ler mining, elticttltmtl it Althea end nsrcedln .ie4I. tlatiullea *114 edeh .ten rlikta as mar Ie rec.ished ,114dn44►1.111.cant.. Aid Ibilier.unidItaLlthhail kelelypl.teldtyk' meted kr eke eyikerilr of the UMW Weirs. iaaur kihtsrlall by Co lvose, 111e LeIiiktsre et Colorado L rtafee a pre1Ue' hereby vented. knPlelnL euewlnts,erotuR, iced olhit Leletiiey nudes 111 TLLnktoliT wHSRuoy, r, Herbert hoover, Prtildeal el the UnHad Lutes el Amara, km tidied these 1111111 to ba made Preen, end Ike Seat elle 01.11111,W Atlee le ke Minuet, a111ud. GIVEN under ray hind,., the City of Winkhleoa, Ib. hllfbl 111 of IIAY I. the year el tint Lord one %mend Al hundred dad TH1111Y,.u;lt led et Ike lidigedea€e 11 the Shced ,cuter the on. hendred red• r t1TY-IU iISI Ey Ike Vitalist: 5,........�r..:A: L.......�. • !F L�) r7• Sr _...(..,t.:.211....L1.r.,.6.�..l:.L.�,......J....., s,wey ?iii i` tr+b H IiICORD1Dl Petal Reenter d i,11 4-14Ra. 70 .2. i1:•ii • '• Denver 04;713 Zip Tntfrb *intro of Autertrat 6a nlf to whom illefe p►nnits shall route. 6reetlnmt WHEREAS. ra wawa el I. Frothiest of Ito Mho! lletvN of H. tilted Si.trs, Owe Sit, Title iNr7drre, e i le�Fd.ih. lopl.meald Thoth, Woe to Nee lege ilN N URGourd WI VW of IN Ud1N Mitts t . C.otlket..f the Roeder of tit w4Me et Denver, Colorado, ittioyabla by @Ay 144011 UWt 11 wpm lMe the Shale Oil Syndicate, Inc., me..e June 29, 192d 81l..t. cad Fly kr Mt mt.d.dehj Alio sr pr.etso. known as The Good Rope No. 45 Paper wining Claim and The Good Rope /4).46, Placer Yining Claim oil shale placer mining claims, situate in Garfield County, Colorado, described as foitows: Tho Good Hope Nu. 45 Pincer Min- ing Claim claim oompriaing the vest half of the eoutheaet quarter of the , northeast quarter, the southwest quarter of the northeast quarter, and the Lot three of Seetioa ten in Towashlp flue oath of Range ninety -tight Rest of the Sixth Prinaipul iferidian; ani Thi Good Hope No. 46 Planer !lining Claim claim comprising the west half of the northeast quarter of tho northeast quarter, the northwest quarter of tho northeast quarter, and the Lots one and two of said Section tea; and the lot two or Section nine, slid Township and Range; the premises herein granted, oontaiaing one hundred ninety-six acres and thirty hundredths or macre. 1 1 wl 414 .41.::16 Or* 11...1..1 . ,..... , SUI' cel :i)e.11Crite .:. ,1l tO 11A11 A:1h 10 140th ,,!d tiln4h1 portal rha,orner nacre Thereon.. 4rIonel 1, 1,.4. 144 as one 1181pnl faller{ 4.bjera, nesrr4telrsA 4.011 MST. That Ills grad beefily ods i1 res4 11111 or 1.4.. el esult .r Mor mk1. plat* haw. l... llyaerrdd .14*10 1414 Ud3 step • t. • • • 88 8:8118.!.1, h.vl.. 118,1.4 b, U. 1.4,1 Slalaf VM111N sol er Wolin pu.1.11, hurhbefere deadbeat her .till .11 the sieh14 prIalodeo, ilnalntllrs, 8114 oppalindees of glows soma mod 1•1 its successors ( iodides, re4 rttpa4thlul * starer Ilatie is 111* Unseal's .4 Q. u1d mleso pesalei, ..4 t. eq 4, aper. alnno4sglod, 81., sipper, or Mau r11Wb 4, 1; sola ay 1.krrhrer. set Ano.. lo oriel Agri, i,, 1.28 41C01a. Thal skied soy Wide 1a1 a or prier rah la phis buds: p44e 14.14, daubu, Ird4, (ler appsr, t* eller •4!8110 dapedb, ha claimed ea hump r as oblT.daedb4d pecelo8 at sold lsr.1,ered dad. Ha rams kannuli seupdd end rmd.ded from Ikese prof THIRD. That the 4141.,34. 614+1, ; 1680 is 1441 added to aur waled Nod manna osier dike roe 1116111, epdl.11.r11, mla.hetador, 11 oak parlour. 11 ' 416181 .31 nnnatte aced In toeeerllea .Nb ,u** ata, dila. ao m.y b. r.pap.11.4 sod obml.lefped 61 dotard la sail ded11a1.1 tar tetra. Asd Qui 10 pans. from Ib. hods eater mated a dill .t rt* Atm. far dile/mg sir e1 er the ■11k.dlf d 0111.1144 Motu- 701A1111. ath701114111. TI.t is the 111 184111 Issl4.eleo by Caue13.44e L.31111101 ee Colorado mob 1110814+ Niles ler worth to the e..Iplet derelepaten &doll. or prrwleo h,q.»Y Van1.4. Innlwlop ess*m.na, dogra&., 8*14*du n.ttpuq .1441,4 111 TASTIWONT WHaalOI, f, Herbert Hoover, Frn4ded el the Asked Stem of Amedp, bay. titled t4... tilde d be mei 704.4 .04 the Seal el t►1 Omani Lend bats 11 be hernial Aced. OtVCN under my 6a.d, n On Coq of W1'1111,41.14 Oto 11vkNSY•F1H5i del al FEHHUliftY in 11. year oor Lead 11e Ihaausd .14. lt.4.ed sod 11-11$IY THREE ■1111 Ill. kelp/mei a et 13.11.1 Sties Q. eve la' dre4l.d AY art radios': 11C0 • Ins Palest Mambo 11061 �.'p.... f1F1Y-!?YFHFLr af/'� . z 8.... — .- •fi �p 4- 66.4 awa;," Y 1 •e0 WINO rinqver 02.;=. 4-1001. SIR Inst .moo of Amita, �a all to wham !(leu present' shot! tame, ansfing: WNIIIIA1. to haute. el Ii. p.,Idene •f M Raised woe. a tie paled stein Cigtu tt*. Thle harti4w. r,d 1edltlellee teryptneetel tWilly Ar. lee h.e d&Melt.f le he Chiral Uhl Cal .flia.dual Stela. CerlineHeol tie tjfsle Ole bad Me it ilnuwood Springs, Colorado, hn,pudid y nlw.IN.xi, riwi,rlt yeew 14.1 the Shale Oil syndicate Inc., o4.• rune Fs, 19f7, d trton's' der fit eh ware hist rewA .. probe, known as the :lonerol Pershing tin. 's Pincer'wining Clair, loners' "irshing .o.' 4 Plrcer 'nininn, Claim, general Pershing we. 5 Pincer ?'.rine Clxtimp^.snerel 1 r Shing :io.o Placer minims Claim, loneral Pershing "o. 14 Placer 'linin.+ Claim General Pershing r.o.11 Placer ;.inin!!: Claim, Lueky ?triko ir.i1 ^lacer "fining Clnils, Lucky . triko No.ir Pincer Mining Claim, Lucky ;trite "o. 13 Placer . Minis^ Claire, lug+y :.strike °;r. 14 Pincer 'fining ritinl, end Luct:y 4trlke 31 ['1aee+r 'fining slain oil shale placer seining claims, situ:dm in "srfieid County, Colorado, described ss follows: the boners' forsi.in,! /. S ?lacer Ainiag Claim claim comprising Tract fifty-six of .locticnis sovrn,ei •f,t,sevo«_ teen, and clihtean in Township five south of !Lange ninety»P1:11t nest of the Sixth ^rincipr•1 'Meridian: t1e Manor.! :'ershing !b. 4 ?lacer "ininq Claim olein comprising the south half of the north hnlf of ttin southeast cuurter and the Lots ten, eleven, twelve, r,nd sirhtees of snid ;adios seven end the Lots two and seven, tLe west half of Op vest tnlf of the southenst euorter of t!.es northeast ousrter of th.e southwest eunrter, the southwest quarter of the rorthnnst worker of the southwest curter, and tfr, south half of the northwest eunrter of t'r southwest quarter of said ?Action ai ti; the l,en- eral Pershing ':a. 5 rimer "fining Clain oleic oonpristn. the south holt of the south half of the northeast quarter, the north half of I,hr north holf of Denver 03900 11111V - the southeast cuorter,'end the Lots sixteen and seventeen of said Section seven and the west half of the west half of the southeast quarter of the southeast quarter of the northwest quarter, the southwest ouerter of the southeast nuarter of the mrthweat ouerter, the aouth half of the southwest quarter;of the northwest quarter, the west belt of the west half of the north- eaat ounrter of the northeast nuarter of tht southwest +enarter, the northwest quarter of the nartheest cuarter of the southwest quorter,and tie north half of the northwest quarter of the southwest nunrter of said Section sight; the Cenersl P!+.rehin+t No, 6 Plnoer rining Claim claim co, prisine the Lots six, seven. fourteen, and fifteen end the north hnlf of the south half of the northeast nuarter of said Section coven and the west half cf the west half of the southeast quarter of the northeast aunrter of the northwest eunr-. ter, the southwest nuartrr of tin northeast quarter of the northwest quar- ter, the south half of the northwest ouurter of tho northwest quarter, the west half of the west hull' of the northcnst quarter of the southeast quarter of the northwest nuartrr, the northwest cunrtar of the southeast quarter of the northwest quarter, and the north half of the southwest quarter of the aorttmest quarter of acid Section night; the ^,enerel Pershing No. 10 Placer Mining Claim claim conprising Tract fifty-one of said Sections aevan end eighteen and ;,setiona twelve end thirteen in Township five south of Range ninety-nine west of the Sixth Prinoipal Meridian: the ;ereral Pershing 'ro. 11 Placer lining Clnim oleic) com- prising Tract fifty in said Townships five south of Renew ninety -+:t• -it end ninety-nine west; the Lucky Strike No. 11 rlaoer Mining Claim claim comprising Tract aixty-two of Sections nine and sixteen in said Township five south of Ronne ninety-airht west; the funky Strike ;'o. 12 Pincer. !lining Claim claim comprising Traot sixty cf said Sections.•ei ght, nine, 1 Denver R38OOD sixteen, and seventeen; the Lucky strike tic. 13 Placer %elle Clain claim comprising, the Lott] ono, four, and sir., the east halt of the south- east quarter of the. southweat quarter of the nort!oast quarter, the east heir of the west half of the southenst ouerter of the southwest °darter of the northeast ruarter, the east half cf the east holt cf the west half. of the southeast quarter, and the east helf of the west half of the eeat half of the west half of the southeast quarter of said Station eight'and the Lots ono, feu, five, and six of said ;,eotion seventeen; the Luoky Strike No. 14 Placer '."inire Claim claim comprising the weal heir of the west half of the southeast quarter of the northwest euarter of the north- east quarter, the southwest quarter of the northwest quarter of the mrth- eaat quarter, the west half of the wrest half of the east half of the southweat Quarter of the northeast querter, the west pelf or the southwest quarter of the northeast quarter, the west half of the treat half of the east hnlf of the west half of the southeast quorter, the west helf of the west half of the southeast quarter, the nest half of the southeast quarter of the north-aat quarter of the northwest quarter, the east half of the west half of the southeast quarter of the northeast euerter of the north- west quarter, the east half of the east half of the southeast cuerter of the northwest quarter, the east half of tin west halt of the east half of the seuthsest Quarter of the Northwest euarter, tho east halt of the east half of the northeast nuartgr of the southweat ruarter, the east Calf of the west half of the east half of the ncrtheest quarter of the southwest Quarter and the Lot eieht of said ;action eight and tee Lots three and seven of maid election seventeen; and the Lucky strike r.c. 31 Placer aininv, 41eim claim comprising the Lots one, five, six. ,nd seven and the south !f+if of the northwest quarter of the northwest quarter of said ;action nine; end the south half of tha northeast quarter of the northeast quarter, the Lot five, �5 Denver 030600 the east half of the southeast nuartar of the, northwest nuarter of the northrnst nw'rtnr, the east half of the west 1311f of the southeast quarter . • of the ncrtiwest quarter of the nc•r:heaat eimrter, the cast half of the northeast quarter of' the southwest nunrter o+ the northeaat *sorter, and the east half of the west half of tte rorthenst ou:mrtrr of thr southwest quarter of the mrtheast quertar of said 3eotion eiKht: tIr premises herein .erentnd, oontaL i .; one thousand sever. 'auncred sixty-two acres and seventy hundredths of an more. 1 1 BEFI ISI _ >*] .,=� .c•'A Denver CJIICO f NOW KNOW YR 11,we then U *mese* purrer.e a deemed. /wish, grated h7 Os 1l.R.d stats ears eh. shed 3ha1n Gil ;yndioote, Ino. • r w TO HAY2 ANDTO HOLDMet Wane pongees, log aet.n theewate t1Ie. In , rapethe ., l ra.bg sed 'Wu Meat nfdeet. wtrtMltey la I. FIRST. net IM 'Foal brag nude Y versu ce leder e<acerla r nim Mb 1. 'toot bets dleee.er.d .lithe. lad Ig■m wbetawse a nheespr.a1x hrrt.bder.dant bail alth.elphes Plasm isetekke. sad eppetesereve atwltrbwrer el6.4te its successors 024 rapl.H.sl Meeks Mader is 1M MaadsM et as sal tplel.T 'sake,, sed . IV ..kuMr, l.ed. 11., afires se ether uYeebk depeilr. 'WA say hews •r•rn mat wertreaal.sake aa ..°1pril. sUUCONU Thee ,bold .ay mein oe lode or other net I. pine limits Bald. Olsen 'tush, k.d. t1., spew. et ether rele.We de7edte.te Wend se hewn be •- shiss-desalbedgeeigua nu$4hMaa.ledd.u. IM tam k.egterdy tempted and weeded trout Sh.s mama sae itch. Thee the premises ten* . M M idd r.W.rt Meet teerM sed amused .alar rigida per etkies, .peteelt.ray .sesreetuele', a e hue pw'wa asl .. .ad te.rndn send h attend.. trill wet weenIdelile se new he rote5N.M sad seleseled'ed hp the keel hew, donee eK W te.rtt. Aid .ter. 11 .srved prem the leed. onlay.reNM ■ el.ht or TIT therm for alights se Fmk ?l Mt ..hems,.! Rte mad sum. Ye UMW. net Isthe else -� ybrisker. 1pCanny, the Legislature ell Colorado .y ereridr Mee AN rabbi ser Seesb t heeds greeee& hardvl.p w..e..th dri.p,.rd other wa.•q Deem 1. the complete 4v66ts.. t 4 This patent i width 1.oc been C asmoanaru d In lieu of latent 'er-, 16A6i.:A, doted `..'uy ;:5, lt:tl because of nrrora in Vis dn. er :.titan and era:/. IN mT11.ONY WHRRSOf,L r.hrry T'ru,lnn, t4nMrst of the (biked suers eI Ashen, love eros' 11e1e STIR. t. 1. meds retest. end the Reel or the MORA Gad Otpee le he ►ve.ee, tette' Wes sada .y head, .t the at, ed Walelast.o. the day of n:: la th. 7ew dew Ltd wr chastised slurhuedeed.M yi -4 TV! .ed 5 W feskseskr.wd die Vetted 51.es the Fee husked end 3/"..717-!:1711'. a7 the Pv.Ydnll���� ,,y... ,fix -N..(_} y ,eye „esCd tfetai . �F' Sowed" 1r• An .Thief r 'etantar-Di t • 4 4.ha.w.ww.eer440 dem 1 1 - •. i 2 :3 5' ARTICLES of MERGER OF / SHALE OIL SYNDICATE, INC.���bf OPOO83 ng INTO ,,,,��// CHEVRON SHALE OIL COMPANY414 I IcW°544° Pursuant to the provisions of Section 7-7-106 of the Colorado Revised Statutes, 1973, as amended, CHEVRON SHALE OIL COMPANY, a corporation organized under the laws of the State of California and owning 100 percent of the shares of SHALE OIL SYNDICATE, INC., a corporation organized under the laws of the State of Colorado, hereby executes the following articles of merger: 1. The following plan of merger was approved by resolution of the Board of Directors of Chevron Shale Oil Company adopted on December 17, 1985. "PLAN OF MERGER "l. Shale Oil Syndicate, Inc. shall be merged with and into Chevron Shale Oil Company (which owns 100% of the outstanding shares of Shale Oil Syndicate, Inc.). Chevron Shale Oil Company shall be the surviving corporation. "2. After payment of Shale Oil Syndicate, Inc.'s debts, or provision being made for such payment, Chevron Shale Oil Company shall distri- bute all of the remaining property of Shale Oil Syndicate, Inc. in complete cancellation or redemption of all of Shale Oil Syndicate, Inc.'s issued and outstanding capital stock." QMPVILA UPDATE rQw Ail • 2. The number of outstanding shares of each class of Shale Oil Syndicate, Inc. and the number of shares of each class owned by Chevron Shale 011 Company is: No. of Shares No. of Shares Owned by Chevron Class Outstanding Shale Oil Company Common Stock 176,001 176,001 (par value $1 per share) 3. The mailing of the plan of merger to Chevron Shale Oil Company, the sole shareholder of Shale Oil Syndicate, Inc., was waived by such sole shareholder. 4. The laws of the State of California under which Chevron Shale Oil Company is organized permit such merger. 5. These articles of merger shall be effective January 1, 1986, for accounting purposes only. 6. Pursuant to Section 7-7-107 of the Colorado Revised Statutes, 1973, as amended, it is agreed that upon and after the issuance of a certificate of merger by the Secretary of State of the State of Colorado: (a) Chevron Shale Oil Company will promptly pay to the dissenting shareholders of Shale Oil Syndicate, Inc. the amount, if any, to which they shall be entitled under the provisions of The Colorado Corporation Act with respect to the rights of dissenting shareholders; (b) Chevron Shale Oil Company may be served with process in the State of Colorado in any proceeding for the enforcement of any obligation of Shale Oil Syndicate, Inc.; and -1- (c) The Secretary of State of the State of Colorado shall bo and hereby is irrevocably appointed as the agent of Chevron Shale Oil Company to accept service of process in any such proceeding; the address to which the service of process in any such proceeding shall be mailed is 225 Bush Street, San Francisco, CA 94120-7137, Attn; Corporate Secretary. IN WITNESS WHA, the undersigned corporation has caueed these articles of merger to be executed in its name by ite VIiQ► President and Asses +Awl. Secretary, this IliAday of December, 1955. CHEVRON SHALE OIL COMPANY By and STATE OF CALIFORNIA ) ss. City and County of San Francisco. I Before me, ALICE M. MAGUIRE , a Notary Public in and for the said County and State, personally WII appeared P. 7"iwl*M+rn.� and r H. LW who acknowledged before me that they are, respectively, the VI ca. NJ; and the 0A1&4hr j 5QLf.I•f *!7 of CHEVRON SHALE GIL COMPANY, a California corporation, and that they signed the foregoing document as their free and voluntary act and deed for the uses and purposes therein set forth. IN WITNESS WHEREOF, I have hereunder set my hand and seal this fii,day of December, 1985. My commission expires OCT0281 1987 , [Seal' + Its is)Ai ICf M. MAGUIRE NOTARti "IIRLIC•CALIFORtIIA an 8 C11UNFY OF sfei rKAACISCO arrows oo tiy+'o4n. la 1911 tr„,p(itc:p_m.4.4 -4- Votary Public _*j( ARTICLES OF MERCER *CERTIFIED COPY OF ART. OF McPCER WITH AMENDMENTS WI?H CHANGE OF NAME. AMENDME V )14( DOMESTIC j(k FOREwICH j{x _PROFIT _NON1'lOFIT SHALE OIL SYNDICATE, INC. DP0083718 (COLORADO CORPORATION) INTO CHEVRON SHALE OIL COMPANY FP0045110 (CALIFORNIA CORPORATION) QUALIFIED THE SURVIVOR COM* OS&IKC. laaaiaa AataaohashoyoUlaaa USA. ,sagi.d pOiyarda+ mkt divan eft allaeyhaa(es 63 /aft lha masa hem as hes eel asmx{aalsa( fak 1114WithilliDemasso Daa 2002 Ora*LULA.la A lialaCUCAm tat 11iaafWawftysad assei �s� M..ODISOI lieedsewgWay had ad6aaarlamid Oupmadoa �grN7Dr Ram Charya(als Cli1VRONU.S.A,RM. Arlaesat Os Unwary 2195 MOs aft Sian tw1 a Nobly > >A fa ad Os as para of sdKaaim4s 704 M* S imaday of Clam USA. bs. pima/Mama Mlarrata steal amisaiwss4pthe wills do4.maamad ataxia l dIs ill #tarlilasstab s�seiilltaaeiml a aaiirha l�r +rPmatar ailysgeabrvs[ab*doreal . Wad haialmi WOMu36 ROW eedalisW ad. Span Si r— / • i1Ml4�r/s"ir Jiddi{larYatorrYIi+MMr+M LT•0010141 prrijwlejaim rte . .rtrrr lillirliVralWalMil �rw�•�wwrw. iii NO arr r+ii�r ,. ..�. . rt«ratlri ii pPao•grit Ye EP • • 11• 11 aladdreflwua lmas j=h81401814 � awl =A. �b.rQ�1� 140.416 4II 7'1.}��I� jiMiM�y+�WfYaiaMMM1Ya Bill/ OW afa It .•M 4143 OtE41p anln/ /. `Ddu *OM tMTWlW.Olt !1F\1 - 4. aidadeqpqrldirdisirs X.1114l141{4iiMMIdolIs ~big* UT • fit`-�1$ .t It 11913 Mattag5811" turns VsOar Mu ietesmitTegRonws w nq •ra Denver 038597 4—JIWt. Tttife1 Otafei iif Amer int, Wu nit to whom flirts. prrsents shall roans., Nrrrihnn: w11EREAS. h purevexe dt 11'e prerh!anc •f Ike ROTH(' SIM SIZMEI of rhe Wind Match Ch.pler Slr, TIBe tTirept.o, esd le6hrdr•n euphlee,talel rlerete, Om Pae heel drpeOted M UI General tandodlt•efniUnrkdShen IP Ce+rlRs.teoltheacalrtsraflhe bend Office a Glenwood Springs, Colorado, the Shale Oil Syndicate, Inc. ettempulhd by AO et nldcnce, rhenhr11 epreue lkd ltd, •e June 2a, 1927, dely eder and pry he nal art& Nerng; tidal At preeleu, known as The General Joffre No. 11 Oil Shale Placer inning Claim, The Gen- eral Joffre Nu. 12 Oil Shale Placer Mining Claim, The General Jgffre 1c. 13 Oil Shale placer Mining Claim, The General Joffre No. 14 Oil Shale Placer, Mining Claim, The General Pershing No. 1 Oil Shale Placer mining Claim, The General Pershing Nor 2 Oil Shale Placer Mining Claim, Tho General Per- shing No. 7 Cil Shale Placer Mining Claim, Tho General Pershing No. 8 Oil Shale Placer Mining Claim, The General Pershing No. 9 Oil Shale Placer s'din- ing; Claim, The Lucky Strike No. 9 0i1 Shale Placer !lining Claim, and The Lucky Strike No. 10 0i1 Shale Placer :dining; Claim placer mining claims, situate in Garfield County, Colorado, described as follows: The General Joffre No. 11 Oil Shale Placer inning Claim chin comprising; Tract eighty- eight in Township five south of Hauge atnety-eight rest of the sixth ;rin- cipal Meridian; The General Joffre No. 1E Oil Shale Placer Iiining Claim claim comprising Tract eighty-seven, said Township and lunge; Tho General Joffre t+o. 13 Oil Shale Placer :liniig Claim olailn comprising Tract oignty two, said Township mil Range; The General Joffre no. 14 Dii Shale Placer lining Claim claim comprising Tract eighty-three, said Township and Range; Tho General Pershing No. 1 Oil Shale Placer Mining; Claim claim comprising Tract eighty-four, said Township and Range; The General Pershing No. 2 • 1 Denver 038597 011 Sale Placer ]pining Claim claim comprising Tract fifty-seven, said Township and Range; The General Pershing No. 7 Oil Shale Placer Mining Claim claim comprising Tract eighty -:;ix, said Township and Range; 'ne General Pershing Mo. 8 Oil Shale Placer dining Claim claim comprising Tract eighty-five, said Township and Range; The General Pershing No. 9 Oil Shale Placer Mining Claim claim comprising Tract fifty -Wo in Township five south of Range ninety-nine.vent and said Township five south of Runge ninety -emit west; The Lucky Strike No. 9 Oil Shale Placer Miring Claim claim comprising Tract eighty, said Township five south of Range ninety- eight vest; and The Lucky Strike No. 1i1 0i1 Shale Placer iiining Claim claim comprising Tract eighty-one, said Township five south of Range ninety- eight west; the premises herein granted, containing one thousand seven hun- dred ninoteea aores and ninety-three hundredths of an sore, 1 Denver 038599/ 110W 'crow Y1t, 14.1 *err It tbttote m, pesauu 1 larn atoo uld, Wald graal.d b7 the Felted 9114o vole i4. said Shale Oil Syndicate, Inn. TO RAYS Arm 10 BOLD 1114 w1d.R dot +bat nature Marinate Wreathe, site the 4a1 sad astigas loner.; aabjerl neterttefrs to Uhl mol F1A9T. That the 'taut harsh7 rand, is 'carte real of Loan at purls *1 6141 link l4 Oleo harm hon ds d *hhla said 0112, su4.ea , 1 Id Mater .idea matins hanlabotarr desuAdi - Rather with au the rights, pitilegel, Immeallirs, and Spputlldnar el 11e pard .mad and la its 3110089 9 0x8 g aendiliaaa add .tlpolatltaat Its ealeelar itmtrs to At Ingrid.' al 441 egg salute' ttta.lsee, aha to up gold, 11i14r, tiett400, Slad, tag, toner, or 0.6,r 001,041 dapr.itr, .Slab may attd which wets. sat lumen It feta{ ee Arri,1 1d 1947 SECOND. That aheaid ao7 tan or 1ad arta of whet root 14 ptaet brute/ pld, vises., elenablr. lead, Wt. capper, or 'that valuable defelile, 4. ett!mrd er howl 14 within Oa abors•dNar.U4d 00,mlwr at acid ]ut-named 4ote, the Nape la eapnury steepled anf eretadad tram sheet Pres.. TFItAD, That Iht prawf/rr ber145 ad .haft 4e Wed labia -at .lay reslyd.04 acaroid water rights for .iefag, .gr1.04ard tanefastatiage or e14mr purgorte, to la dltahet and r1rrtalrt twit fa weeerdet .104 ',soh water tights a Mir 1. ,u.Fdsld and aa4eawledgad by the Neal ta.. ., and d.cleats of the sauna. Ana than Ir fumed Sun the loofa 410147 panted a right of way thenen for dash,a or tans uc11d 67 the aatheeity al lou Mead Stalls, FOPRIR. Thu is the Otte eat/Ory Iegld4ien b7 Cuuteerl. (4. Ledalatan al Colorado may provide rele1 ter working t g .1.lr, or Pr.oisel 4..147 (taatld, bxelelag easumanlr, dralda ge, 1714 01hU ) tenet 10 the ereWleis dwlopment He TESTIMONY WHEREOF, r, Herbert lloovor, Prulitat of Ib. Vatted Watt e1 Ammtla1 Plato rand these ]titers to be made Patent, 444 *e Seal of 041 Oepral Laad Odin to he heteula .01i14. OIYJOO vadat mr hied, at the OF of Washla=41, the 1WE PITY -THIRD del of JIM.? le thl 7100 attar Lardane 1hevue4 nlaa handfed and THIM7Y and of tat red,pe.deora K ria 11.lt.d Stares ala One Wiltfd and .f IF 2Y. I1 ill/ C B7 the Presid,na,r;'e 77,'::.f.:..t.:..A. • ancoaesat pont nog: _Lilt,l. ..:,r_LU e7LLr>✓rC.L'..r=?.i...�,,,:Ll�r'_;'S.,.er-r �f Rstrrdr d AM CMIr"Twnr rpm. • ARTICLES OF MERGER OF SHALE OIL SYNDICATE, INC.1‘J D90n$39/i INTO CHEVRON SHALE OIL COMPANY " f s F919°554/' Pursuant to the provisions of Section 7-7-106 of the Colorado Revised Statute:}, 1973, as amended, CHEVRON SHALE OIL COMPANY, a corporation organized under the laws of the State of California and owning 100 percent of the shares of SHALE OIL SYNDICATE, INC., a corporation organized under the laws of the State of Colorado, hereby executes the following articles of merger: 1. The following plan of merger was approved by resolution of the Board of Directors of Chevron Shale Oi]. Company adopted on December 17, 1955. "PLAN OF MERGER "1. Shale oil Syndicate, Inc, shall be merged with and into Chevron Shale Oil Company (which owns 100% of the outstanding shares of Shale Oil Syndicate, Inc.). Chevron Shale Oil Company shall be the surviving corporation. '2. After payment of Shale Oil Syndicate, Inc.'s debts, or provision being made for such payment, Chevron Shale Oil Company shall distri- bute all of the remaining property of Shale oil Syndicate, Inc. in complete cancellation or redemption of all of Shale Oil Syndicate, Inc.'s issued and outstanding capital stock.' QDMPV7f.fi UPDATE Q0t411. n-) N 2. The number of outstanding shares of each class of Shale Oil Syndicate, Inc. and the number of shares of each class owned by Chevron Shale Oil Company is: No. of Shares No. of Shares Owned by Chevron Claes Outstanding Shale Oil Company Common Stock 176,001 176,001 (par value $1 per share) 3. The mailing of the plan of merger to Chevron Shale Oil Company, the sole shareholder of Shale Oil Syndicate, Inc., was waived by such sole shareholder. 4. The laws of the State of California under which Chevron Shale Oi1 Company is organized permit such merger. S. These articles of merger shall be effective January 1, 1986, for accounting purposes only. 6. Pursuant to Section 7-7-107 of the Colorado Revised Statutes, 1973, as amended, it is agreed that upon and after the issuance of a certificate of merger by the Secretary of State of the State of Colorado: (a) Chevron Shale Oil Company will promptly pay to the dissenting shareholders of Shale Oil Syndicate, Inc. the amount, if any, to which they shall be entitled under the provisions of The Colorado Corporation Act with respect to the rights of dissenting shareholders; (b) Chevron Shale Oil Company may be served with process in the State of Colorado in any proceeding for the enforcement of any obligation of Shale Oil Syndicate, Inc.; and (e) The Secretary of State of the State of Colorado shall be and hereby is irrevocably appointed as the agent of Chevron Shale Oil Company to accept service of process in any such proceeding; the address to which the service of process in any such proceeding shall be mailed is 225 Bush Street, San Francisco, CA 94120-7137, Attn: Corporate Secretary, IN WITNESS WHEREOF, the undersigned corporation has caused these articles of merger to be executed in its name by its V i La, President and 1985. Secretary, thislt!tday of December, CHEVRON SHALE OIL COMPANY By and -3- STATE OF CALIFORNIA ss. City and County of San Francisco. ) Before me, ALICE M. MAQUIRE: , a Notary Public in and for the said County and -I State, personally appeared G LP . 1 �vff►'+rnA and s [1 . �•+r1� who acknowledged before me that they are, re$pectively, the ILLFru 1 ds and the ik.)&trtotet Sa4/'1401.17 of CHEVRON SHALE OIL COMPANY, a California corporation, and that they signed the foregoing document as their free and voluntary act and deed for the uses and purposes therein set forth. IN WITNESS WHEREOF, I have hereunder set my hand and seal this iii&day of December, 1985. My commission expires OOr06ER28, 1987 . (seal) 1 t SEA! N ICF A. MAGUIRE 11OTAR9''iJ81!C 1 M.IFORNIA Clr. 1 COWINOF SAN rRAACi5C0 aIezeirmska Lode rkt 78 1$11 frri-i -4- Notary Public XX ARTICLES OF HERGER WITH AMENDMENTS ,DOMESTIC ICERIIFTED COPY OF ART. OF " PCER WITH CHANGE OF NAME AMEHDM 1' )(X FOREIGN _j(}` PROFIT NON SHALE OIL SYNDICATE, INC. DP0083718 (COLORADO CORPORATION) INTO CHEVRON SHALE OIL COMPANY FP0045110 (CALIFORNIA CORPORATION) QUALIFIED THE SURVIVOR • t of 71 b1,a 6 1.N Wltt! ae atter A dame ronliendnUA.A,Joa., a ooipanUandlYargdsad aod%7hltmaftlo oftoa7rlhami.(fi+oCa7pa+dtaai7rm Issby earthy au ammo' ledode Ow ad catiolcoptes etOnt eOao tirga &dykes Iherovi out ontad7 alAO3434:02 adA eataxgodpfaaitUaribsibiscroas Che=VA&ias Chermabia Otleaorpany. IIIWT1141t33w1 Gpa!htraiateiatbaatwihaodSedduaaealofutdCmpamfoe dia. OF of tZarvoFw WO& Mau of eats aly ago Riedars4 Camp el CamasCa �tl as thremhrt 7104 bafoeo lar, Stow lay a Natsy SVsbtk b sed Ibr abe Eves a C*SSmatk wicodita.Aw fps% AMhaoa 3Koda y e[ Primo n U.S.A. 1ep. paewdd ato bbothe pima Vow mai rimpittslia ibo vaidiah bad ativao derdlona alilcdMeallatitigamtel indrelsed midis /Wig by afptss ea do beau atstl. tbo pas* or di' tpaa 6eha to %itch d U pcaoa • ads&mama Ai krtpadaai VYt11t888 ayitaod oldof6chi tat 3tpuar► S 1 PIM Tat 11111.111 It LSI coma IIvAfauminaitfonrram Z tralloiritay fi4atiM 1M. enam, 'A amus. `l_ Psiri, tetra r f �arlikrri f► MI lwr enz +Knxw :1.r*[ti''rY�'.»...trw.'wW""°""W`°'`"'»R�d.waq.w,..iirr�aIka 3. 04.144 ••> +..1ay.4.tir.rr"mn'�� ��r1��N°LaiilrrrM aialielid OQNi» M ,MipM CP !w Ai amtp •r �1i1 • w •• 011earfrikr • • Crelm tl.s SIM* tl6 Clutldrarkil aliIh OR�Mt� ■Qtr amrY MilgfolOie IM��1gli PO �iei1mi�Ifellwl 1NIa.Mainrwda. awind • •_ QV/ limodipta }E/iltwk W, »1�1Y=1wild 41 »r. q - lmdri�i Ilrirrl Bon itt • .1 aim?,ISl ffi 0112:111 1.Thum e14Y pnimaplr dYm►xop7lfsMf11 pwrwMrrpdhMrreY 1411•10111**Onfamitlandmpulaspondollastwoo11.01 s/ear r.Wtiriw Lemt kr00.1411m *Into w'R7+i+7rkilelYiY/eWYiletiMti11lMdwtrr011 Co raiLWi*IttirreRW cowl 71a oit r OAS 9firl ttaltrWl to rit. wr+rjit_. Pit.Ou Otto 100 • myry ' Gm tart 411111611M. 44 ilii! • 4 ryp-ir tMl‘KM1114 oompl Lw1/itjlewAr 411 YrheltMRl bstupm ls1Mr, j.lYlleaKrN+olr41ietl141r yw19ylrette/ fY/ 1 1WaL,I t • , L tummy 11e4Y14iNtMitinti MMl7sikiti elpen$iV,1eY(twdl/Yellbbee liograttavka rstoNt is tl2LS'•f. IBMS L StItotda 14711ra AMA stilAkilitiNAlltwAvAwhfwv004. 7.ONeL7virgrar mip11h70r7/MI1`1kF ..3.11. 071774.Yr G 74 44771.17 W tt Adel beM aiie W e yel4wei JyW�eeM +1 Mrtl4iw441 Ird f heti , +A�4r��tr�WoieemileswiifMti oriio A A �kd�4lleteet pftwoloA N.61,1 PIO 1117 D► Ola4 . tui 4 4CP ■R.M4IN NCI mini : mm. ElmoTI OlUIW c arlinartilellieltispai ==r11010=4...rE4r wY.emoit .wd ."--.1.•"4•70 Ara awn* 4d.M IM. rnsrio Cisme •eaE Inl� 46111srod StARA "119 Filtird'-for record May 1, 1951 at 1:45 o'clock P.M., Bock 25$ '. ReoripVon No. 175915 Charles 3. Keegan, Recorder. Page 1$3 NO.WAARANTY t)fiEO—Long porm Ind1vlduAf to Carperatton. Priated and for seta by the W.Fr.Ktetler&LACYCo.,betiver Reception No. WARRANTY DEED TO stie�i�tQr rteeira'at o'clock fir.; A. D.YA' Rag Eta, muco this 3rd - 443.5 be April. 1n the year of our Lord, one thoitl'i iid aide hundr ad',and- fifty-one between. HARRY L. 3:30WN of the County of h1eS''a and State of Colorado, of• the first part; and ' PACIFIC WES`1'RIN OIL CORPORATION Delaware a corporation duly organized and existing ondar and by virtue of the larva of the State ef.Celefado, of the second part; I; titteaOrtib That the said part y of the first part, for and to conelderaLIon of the earn of Thirty Seven Thousand, Seven Hundred Forty -Six and 60/100 DOLLARS, :no the said parte r of the first pai�t•rn handpaidb y. the. said party' al. the second part, the receipt whereof 1s , rproby. ccnfesse , at 1.aoknowledged, tib s • ftre4ded,'barsained, sold tynd-convoYed, and by. these presentn dee.S gro4t:'§?�t�itlq:-still, coayey and confirm, nnto thesaidparty of the ee.ednd part,-1tasuccessors and asaigne•toiever, all the (et/Owing describedtracts or parcel s of rand, situate, lying ani being in the Caieuty•bt. Garfield" koraiataof Golot'adb;Aa evil:. . 'Micky' Strike -No'. ;1` Placer Mining Claim; comprising Tract -'.97. in : Township 5'S. of K. "=98 W. of'the. 6th P. M., , JLriisky'Strike Na •.-2 -Placer Mining Claim, comprising •Tract ' 96 ,in T rwriehip' 5 S., -_o ' R-..-98 W. of. the 6th P. M. ./Lucky Strike No. 3 Placer Mining Claim, comprising Tract 95 in ,Township 5 S. of R. •9$ W. of the 6th P. M., /Lucky -Strike No. 19 Placer Mining Claim, comprising Tract 6$ in✓ Township 5 S. of R. 9g W. of the 6th P. M., Lucky. Strike No. 20 Placer Mining Claim, conipri.s_r_g Lots five, d(,ays32 ,'•seven, nti dight of Setion. 13, Lot seven of Section 11i. and Lot four of Section 23, Township 5 S. of R. 9$ ti, of the 6th ?.M. v Lucky Striate No If• Placer Mining 'Claim,: cornprisxng 'Tract 7? in .TO ariship' 5 5 'of R.: 981W of '•the bt-1 P;' 14.., . ,IL'uelcy Strike No 25 Placer Marling Clairii, cor'rrprising 'Tract 71 in;i • TdidtiSHI 5 5. 'of. FU.,98 W. Of= the '6th P'. M:-, ' •T' ; . • v;LuckyS•trike.No..z6 Placer Mining Claim, comprising 'tract 70 in' ,pwnship 5 S. or R. 98 W. of the 6th P. M., containing, fir- the - aggregate., one thousand two hundred seven acres :and,tiviiity•-two hundredths of tan acre, and lucky Strike No. 23 Placer Mining Claim, comprising Lots 5 and 5 of Section 14 and Lots'6 and 7 of Section 15, T. 5 8,, R. 9$ W. of the 6th P. M., containing 51 acres . v.,.v�zxax as�y "--'ar-..�,::.-:a.� - • rix-i....w..,a. . v •. `�.-��...-.......- f 4 I• I. IF `.-:.. :.-??`s- - - _ .1' _r...«__..�� r tea- ._�.__....___: ... _......._.. W..�...__. ..-...-.—.v .. c._ =rr J: _,_ � '�_ _•_ h. l't• F ' • Book 25$� :.Pate •1$4 iffugrtier with -a11 and singular the hereditament] and appurtenancaa Marginate belonging, or in anywise appertaining, and the reveraton and rovaralons; remainder and remainders, rents, issues and profits thereof; and all the estate, right, title, interest, data:, and demand whatsoever ofthe .aid potty of the first part, either In law or equity, of, in and to tlie.abovo bargained gamins, with tbo hereditaments and appurtenances. G ss�, i 7 Win, I�at e.:an3 In Ifah the said premises above bargained and descilhed, with the appurtenances unto the -'9 said party of the'aoeond part.lts.auteeaeors'and assigns forayer. And tha4s aid - I 1.i i' • I t. Harry L. Brown party of the drat part, for himacl. f his heirs; ..i..ecutgra and aiIminislratBra. do es coyenant grant, bargain ahai agree to and with. the said party of the second part,lie. successors 'rod asaiyme, that at the time otthe annealing and delivery of then presenia • he • is ` wall' salted of the Miamians above convoyed; as of good, aura, perfect, absolute sod indefeasible estate of iribsrltancq 1m1aw, In 'fee simple, and ha s good right; toll power and lawful'atithority to grant, bsrgalu, call and convey the name 1n manner and form aforesaid, and ttat'the same aro tree and clear from all former and other grania, bargains, shloe;illoa s, taxes,• assessments and in:umbranceatof whutever'klnd or:nature Keever, • excepting. such, lease,.or leases as may,now exist d upon.sapremise;.. or .some portion.• thez'eof „for. .grazing pl;rposea only;.. and• sub,Ject:,,to iE the conditions, stipulations. and exceptions•as set forth in•the United States Patent for said premises; and the abova bargained premise] In the quirk and peaceable poasoasion of the - said patty of the second part, its :successors and aeelgne, against all and every linen or penman lawfully claiming or to claim the whole or any part ,thereof, the aald party - ' of the first part 11111 and will WARRANT ANo'FbiLeVER DEFE1t O. 3itt=1 1tttea.UU iih>'rea ;' The Bald party of the first part has hereunto set band and anal the day and year first above wrltter. ;Kroh `rb, S.RAL16 N ISE110.5ied td Paola tacos. , his . t t •k STATE OF COLORADO, and / Ise Git........COUNTY 1, t/....IIv. a Notary Public 1n and tor eatd Ccunty, In the state aforesaid da hereby certify thatHarry....L..--•13FQ]dtl who ...1.5 personally known to ire to be the parson whose name 1.5..._.__._-..-...-. sub. '? F scribeCto}ite'foregoleg D. appeared before me Ulla day In person and acknowleged that- he +: i lined AS delivered the said instrument of -Yriting as hl.s free and voluntary act nad. I, Given under my hand•aud notarial goal this.......Y:....... ....:.... ___..... ....._..._....... ........ .........day of A. D, li ,I >fy commleeton expires .......... :.:..._........ ...,:.,, �, 19 Z-1 It. Ij •II STATE OF COLORADO, 53. COUNTY OF Voter bile: , a Notary Public in sad for said Dainty. in the State aforesaid do hereby certify that Il Ij who............_.-........ .personally known to ma to be the person..._..-__. whose name sub- li scribed to the annexed ieatrumsnt of writing, appeerad before me this day in person, and acknowledged that II signed, angled and delivered the said tnetrwnent of writing as free and i` voluntary act and deed, for the uses and purposes therein set forth and tont said I wife of the said did, actor having been by mo fully l; 3iII II apprised of her rights and the effect of 3101n said instrument of writing, freely and voluntarily, separate and apart from her husband, sign and acknowledge the Baine. iE Given ander my hand and notarial anal this. ........ ................................ of A. D. 19 11 f 11 NY commission expires ......... 18 Notary ,Public. it JO, .-„ 17S971V: TY DEED B -OW TO . STATE OF COLOB... ..C.Otaity I hereby certify that tz;.:...._...Instrtunentlras Merl for re ir; office this. / D. 1aLLL."r ecipoc and dttly recanted . in Book. 42CSI .143 day O.. By ' L. 1..tiEtwot.. to —e. PkIcos1t k 500 --VeACIN" .• • . ..A.1? t 'f a I.. •• . Fart Wake "V:e/kV Will 1 • alum= a:maxi • or Warseaaai Ota. I:erte.Atrax, as torpotaltsi awaited awl and b drlue of the blond Corpomlian'1srw of tbt Tam Cahn! . Bat, al adaarelInj et IM Beard of Diredeta et said Paetd 0.rpotetea dnyr htia sod taarmJ al walla qualm sad as lbrspoloal; rereiel wen el' i .4opte l ,� � tb 1be �taatlatatparalLo • • ; Id ares Mask adtfrsbia sad ea hen al F slseldoeklnasrsaid teelataiiaiiftese sidentiios ries1rllgr NlIhg forth said aaatrdamol.1a ai !t=erns ti'dal l# G bushy dialed adttaat4a Is aimed IM Carne .t d= luolleradsa at dile aoipoaliaa err du Ain& lrlyd shall read au h laws, Ds aunt of Oa ierperatlau 3r 004 til Cow* 3Z,:,:.:.:';:. • i �eKi paring iq folds o of a hoard sf ,alatldr�sio-ta at +1}id cowman for eta i °• • m sad maws* sold 'mewl was dolt } ' ' sal hall ' W oleo et Ila torpaestiery Pomba* Da TIl• 144. % ' meq► ' eat ins 211E day or Apd1,19W; diva mow : ' i' - ch alginate babU On awls* tft•Ilm Telhig : of totperaltoa, lterl tow whine *oaf f aalrt'arnead• ..,: • mod .4 rmndndmt ut hit fdE+anied fit stardom ttilh dm amides » anise Moral Isepaealtaa law at tete Mats Tar tisk he Natal of Wit saapimdhun rill set ha sedumd ander sr twee et rad sacra hued. • 7 1.4 boot 294 ti Pau+ 449 • Ip Illlr a IYArrrrri,ahl lewdly Wrlrne 141 Iwpwnitea bits .awarl'tt, rul% •mlr real 4r M brtraetn attar! nW Iyr.',Meets is q *Wail try III kgl>y ■ Virriistyl Ullti Irl Multi P. Kri& RI tkrlrlarr,thli It. syr atAttr%103e. Norm i'attaai (kb L4aroaaavvr rtcilli' witi1 M Dmiitrattel bull VIM JUIN VOL 111 S ity HIM Kram ri i.p, t�esl Daum- m- P. laa Ito Ila it ,tt.% AIR t5rrair at trtla +u�t Ulla Ilia ■awe4 tial .a, lila Mb dry to WI. b. A MIL lwromalli two t"irli lv IPA R XMary i'ataltr Ir ,rad far tir wegr aid flab nrgrrdd. iblw Arm. s Vke•PretWeat at Pulls Wesisrri IRI Carpal mit 1'una Y. leery Moth of Ps.11t. WNin a 011 M itre. n . a rnyrwIllMl M lir IN& of j}� 1i1 top rnliuu it- ' k awl vistrit tonged lir f iwwp pplarprer>trma, npdtf,q,rrolrl Hai giant. as , .n.b 1104rmairtal.rpt rr tliiralrantlkf p tl 1t m Ir twit h 111rr4 uMf.I:M rN •ad slesilitiidiloorptailiart thr siaapfure iir said r r of Ila af WWLWS1' rurran1 wiin Rolrlrhg sttl i aft b ibi Ind orib� .44 YIn, i mat'lktaistrr trf raid Iwtbr War. r►t�. an I Ike tir rcpt Mod to odd oarlhlratr 4 511 eMrrMa a ...star Weirton tla*' Is Mtn", Vanua:1 hare (KKrrule .rl toy Intl ma ad at rf i.tl lir daf ala par pilawalrl. At malt smut i1atIdt tNIMI1III rou'1MY8. Etat twit Da !iltiiilliM.UtMK - Also to Mamma rotary Pal,R& Sly Praia4Gtra% Urplm • 1 eb 11t lig? 1{iiplsftati, DDL 'rag Cates Canty Ad If 115 and 392 Pig 450 • ....1,747. .f, Up ti, itgbattUe94,evotai9egadig ad t1,001a01 blien,boartifeaatdealaimandfrring adtu an4coror teollr7' Cortitioate o! Amends'n! of the "PACIFIC 'MOW OIL cOf POM?IOWIr as received sod .Bled in this afice the twonty-flttb day of APrll. A.D. 1958. at 11 o'01ao4 A.Y. in &MOWmi'f, Jifatdamti tlor 'Dytl1l(aned cuseestialiegiat gamy& ..in dinye arentef. rd onad eraanulsiindAmitdredam' ••y_io t MAI I" Iszfehr."701 Su* *O.torsion dlate t! fRecorded at v doak�JAN 19 1998 Reception No.-_ mon ED ALOOF, RECORD GARFIELD COUNTY, COLORADO DEED KNOW ALL MEN BY THESE PRESENTS: GARFIEiD W Meta Dov: Fee 728 P.M 19 That this deed is made effective es of the 31st day of December, 1984 by and between Getty Oil Company, a Delaware coiporetion,-(hereinafter referred to as "Grantor) and Getty Oil Exploration Company, a Delaware corporation (hereinafter referred to as "Grantee"). WITNESSETH: WHEREAS, Grantor is the owner and/or holder of those certain shale oil prop- erties, and lands in. Mesa and Garfield Counties, Colorado, described in Exhibits "A" and "8" attached hereto and by this reference made a part hereof (hereinafter collectively referred to as the "Properties"); and NOW THEREFORE, for and in consideration of one dollar and other good and valuable considerations, the receipt of which is hereby acknowledged, Grantor does hereby quitclaim, bargain, sell and convey unto Grantee, all of Grantor's right, title and Interest in and to the Properties, together with all improvements situated thereon and all water rights, permits and applications, and reservoir and ditch rights, appertaining or belonging thereto or used in connection therewith, and other appurtenances !hereunto belonging. Grantee does hereby accept this deed subject to easements, rights of ways, exceptions and any and all reservations appearing of record affecting any of the Properties and/or rights granted. To have and to hold the same together with all and singular the appurtenances thereunto belonging or in anywise appertaining to Grantee, and all the estate, right, title, claim and demand whatsoever, of the Grantor, either in law or equity, of, in and to the Properties, together with all improvements situated thereon and all water rights, permits and applications, and reservoir and ditch rights. appertaining or belonging thereto or used in connection therewith, and other appurtenances thereunto belonging. This deed shall extend to, be binding upon, and inure to the benefit of the successors, and assigns of Grantee. STATE OF COLORADO CITY AHO COUNTY OF DENVER GRANTOR: GETTY OIL COMPANY By: `fres yen GRANTEE: GETTY 0 L XPLORATION COMPANY By: t orney- - act dThe foregoing instru t was �•cknowledged before me this D (it, day of ,i 1. , 1993. by 1 1 , to he known to be the ,arson w'' executed the f regoing ns rument as Vice President of Getty Oil Company. 'Witness my hand and official seal. Notary Public: � 6 �! i0d F U . Ati`44.1.' Fly Comission Expires: Address: / b ',OWN At � CO �1�21J�• The foregoing instrument was acknowledged before me this g day of ri0 , L987, by v'Vi. �7a,a,:,v . . to be known to be the pe -.,n w o executed the foregoing instrument as Attorney -in -Fact of Getty 011 Exploration Company. Witness my hand and official seal. Notary Public: '- . e.,.ce,,, , ""' My Comission Expires: �,.,�., ,Z4 f /qg</ Li `f' Address: e x o .a4i4 i 755-R92W Section 25: Section 26: as^x 728 Ps0E 28 Garfield County. CO Clear Creek No. 4 Placer, being Lots three (3) and four (4); with Lot 3 aka 8.04 acres being the SE/4NE/4SW/4 and Lot 4 aka 16.45 acres being the E/ZSE/4541/4; Velvet No 13 Placer Claim comprising Lots one(1) and two (2); with Lot 1 aka 20.47 acres being the N/2 NE/4SW/4 and Lot 2 aka 20.58 acres being the N/2NW/4SW/4; Clear Creek No. 3 Placer Mining Claim, described as the Tract one hundred one (101), aka the S4i/4NE14SW/4, S/2NW/4SW/4, SW/4SW/4 and WI2SE/4SW/4. Lucky Strike No. 15 Oil Shale Placer Mining Claim, comprising Lot one 11), with Lot 1 aka 29.30 acres being the N/2NE/4NE/4 and NE/4Nil14NE/4; Clear Creek No. 3 Placer Mining Claim, described as that part of Tract one hundred one (101) lying in the 5E/4NE/4SE/4 and E/25E/45E/4; Velvet Ho. 13 Placer Claim, comprising Lot three (3), aka the 16.64 acres being the SE/4SE/4NE/4 and NE/4NE/45E/4; Velvet No. 14 Placer Claim, comprising Lot two (2), aka 16.64 acres being the NE/4SE/4NE/4 and SE/4NE/4NE/4; Lucky Strike No. 1 Placer Mining Claim, comprising Tract 97, aka SW/41(E/4NE/4, SE/4NW/4NE/4, W/2SE/4NE/4, E/2SW/4NE/4, E/2NW/4SE/4, W/2NE/4SE/4, E/2S14/4SE/4 and W/2 SE/4SE/4; Lucky Strike No. 2 Placer Mining Claim, comprising Tract 96, aka W/2NW/4NE/4, 14/25W/4NE/4, E12NE/4NW/4, E/2SE/4NW/4, E/2NE/4S`r1/4, W/2NW/4SE/4, NE/4SE/4SW/4 and NW/4SW/45E)4; Lucky Strike No. 3 Placer Mining Claim, comprising Tract 95, aka W/2NE/4NW/4, E/2A4i/4NW/4, W/2SE/4NW/4, E/2SW/4NW/4, NE/4NW/4SW/4 and NH/411E/4541/4. Section 35: Lucky Strike No. 1 Placer Mining Claim, comprising Tract 97, lying in the NW/4NE/4NE/4, W/2NE/4NE/4NE/4 and E/2NE/4NW/4NE/4; Clear Creek No. 3 Placer Mining Claim, described as the Tract one hundred one (101) aka that part of the NE/4NE/4, being the E/2NE/4NE/4NE/4; Tract 103 aka the E/2E/2NE/4, E/2NE/45E/4 and E/2E/2SE/4NE/4SE/4, as described in Warranty Deed recorded in Book 257 page 137 of the County Records of Garfield County, Colorado. Section 36: Clear Creek No. 3 Placer Mining Claim, described as Tract one hundred one (101) aka the N/2NW/4NW/4, NW/4NE/4NW/4 and W/2W/2NE/4NE/4NW/4; Tract 103, aka the S/2NW14NW/4, SW/4NE/4NW/4, W/25E/4NE/4NW/4 N/2SW14NV/4, SW/4SW/4HW/4, W/2W/2SE/4SW/4NW/4, NW/4SE/4NW/4, W/2W/2NE/4SE/4NW/4, W/2NW/4SW/4, SE/4NW/4SW/4, W/2W12NE/4NW/4SW/4, SW/4NE/4SW/4, SE/4NE/4SW/4 less Lot 9 in the E/2E/2E/2SE/4NE/4SW/4, also described in the Warranty Deed recorded in Book 257, page 137 of County Records of Garfield County, Colorado; Tract 104, aka the 40 acres of the E/2SE/4SW/41114/4, E/2W/2SE/4SW/4NW/4, E/2V/2NE/4NW/4SW/4, E/2NE/4NW/45W/4, 5W/45E/4NW/4, NW/4NE/4SW/4, 11/?14/2NE/4NE/4SW/4, W/2W/2SE/4SE/4NW/4, also described in Warranty Dead recorded in Book 257, page 137 of County Records of Garfield County, Colorado; Tract 108, aka the W/2SE/4SW/4, E/2E/2NE/4SW/4SW/4, E/2E/2SE/4SW/4SW/4, and the E/2SE/4516/4, less Lot 4, and any part in the S/2S/2SW/4SE/4, also described in Warranty Oeed recorded in Book 257, page 137 of the County Records of Garfield County, Colorado; -9- T6S-R9BW Section 3: Section 4: Section 9: B71 72,5 ?i 1 30 Garfield County, CO Hunter placer claim, comprising that part of Tract 398 lying In the W/2SW/4, also described in Deed recorded Book 240, page 193 of County Records of Garfield County, Colorado; Wallace placer claim, comprising that part of Tract 48B lying in the 5/25/25W/4, also described in Oeed recorded in Book 240, page 193 of County Records of Garfield County, Colorado; Clear Creek placer claim, comprising tot 5, being the 47.05 acres in Tract 107,'in the W/2 of the section. Clear Creek placer claim. Comprising Lot 5, aka 31.90 acres in Tract 101, in the E/2; Clear Creek placer No. 1 claim, comprising the Lot 6; with Lot 6 being 39.52 acres in the E/2, aka part of Tract 106 lying in the Section; That part of Tract 108 lying in the section as described in Warranty Deed recorded in Book 257 page 137 of County Records of Garfield County, Colorado; That part of Tract 40 described under the original survey as the SE/4Sii/4 in Warranty Oeed recorded in Book 275 page 137 of County Records of Garfield County, Colorado, and as may include any part of the S/2NE/4SW/4, NW/4SE/4 and S/2SE/4; Hunter placer claim, comprising that part of Tract 39B aka the SE/4SE/4, and including any part covering the S/2NE/4SE/4, SE/410/4SE/4 and E/2SW/4SE/4. Also described in Warranty Deed recorded Book 240, page 193 of County Records of Garfield County. Colorado. That part of Tract 40 lying in section and described in Warranty Deed Recorded in Book 257, page 137 of County Records of Garfield County, Colorado, and as it nay include any of the NE/4NW/4, and NE/4; Hunter placer claim, comprising that part of Tract 398, and described in Deed recorded Book 240, page 193 of County Records of Garfield County, Colorado, and as it may include any of the E/2NE/4; W/2NE/4; E/2SE/4 and NW/4SE/4; aka part of Tracts 40 and 44, in the section. Section 10: Hunter placer claim, comprising that part of Tract 39B, described in Deed recorded Book 240, page 193 of County Records of Garfield County, Colorado, and lying In the W/2W/2NW/4; Wallace placer c'aim, comprising that part of Tract 468, described in Geed recorded in Book 240, page 193 of County Records of Garfield County, Colorado, and lying in NW/4 and W/2W/2NE/4; Buck Canyon No. S placer claim comprising Tract 49, described in Deed Recorded in Book 240, page 193 of County Records of Garifeld County, Colorado as it may lie in the NJ2NE/4; Buck Canyon No. 6 placer claim comprising Tract 50. described in Deed Recorded in Book 240, page 193 of County Records of Garifeld County, Colorado and lying in the NE/4; Westfield No. 1 oil shale placer mining claim, comprising Lot 4, with Lot 4 aka 40.00 acres lying in the S/2SE/4NW/4, E/2it/2N11/4SE/4, SW/45W/4NE/4, and NE/4511/4; Westfield No. 2 oil shale placer mining claim, comprising Lot 1 and Lot 3. with Lot 1 aka 32.86 acres lying in the NW/45W/4 and 5/2514/4NW/4, and Lot 3 aka 7.14 acres lying in the E/2NW/4SW/4, W/2NE/4SW/4, E/2SW/4NW/4 and W/2SE/4NW/4. -11- • Delaware The First State PAGE I, R RRTET SNI1'E WINDSOR, SECRETARY Or S7'A2'Z Or arg STATE OF DELAWARE, DO EBASMY MUM PX Y 'S ATTACHED TS A TRUE AND CORRECT COPY OF THE CERTIFICATE OF MERGER, WHXCE MERGES: " GETTY OIL 20LORATION COMPANY'', A DELAWARE CORPORATION, WITS AND 14T0 "CAEVIRON U.S.A. INC." UNDER THE ,NAME OF "CHEVRON U.S.A. INC. ", .S CORPORATION ORGANIZED AND METING UNDER 273E .&AWS OF THE STATE OF PENNSYLVANIA, AS RECEIVED AND FILED IN TRIS OR'MCE TR2 2'fXRTIBTN DAY OF APRIL, A.A. 2002, AT 9:05 O ' CLOCK A.M. AND I DO NERDY FURTHER CRR7IFY THAT TRE EFFECTIVE DATE OF TRE AFORESAID CERTIFICATE OF MERGER IS THE FIRST DAY OF MAY, A.D. 2002, ,AT 2 O'CLOCK P.M. 1 111111 II11I 11111111 II.IIIII.1II11 II11111111111111111111 669006 02/22/2005 02:07P 01604 P367 h ALSnORP 1 of 3 R 16.00 0 0.00 GARFIELD COUNTY co H nieC.SmIth Wtndsar, Secretary of State AunroprzCATION': 3674757 DATE: 02-09-05 i 11110.1111111111111111 X11111111 Ih ill 111.111!!.11!11111 6690013 02/22/2e05 62s07P 0x664 P368 tf AL.SDBRF 2 of 3 R 16.0 D 0.00 GARpi6L4 COUNTY CO CERTIFICATE OF MERGER OF GETTY OIL EXPLORATION COMPANY WM 1 AND INTO CII2VRON U.S.A. INC. k is herehycenified that: Amato* or coaravRArzoxs tins° 0.0:45 Aar 04/.¢/2d0. 02027444$ -- 0784481 1. The constituent business corporations participating in the merger herein certified are: (i) Getty Oil Exploration Company, which is incorporated under the. Jaws of the State of Delaware; and (ii) Chevron U.S.A. inc., which is incorporated under the laws of the State of Pennsylvania. 2. An Aga:anent of Merger has been approved, adopted, certified, executed and acknowledged. by each of the aforesaid constituent corporations in a ecordence•with the. provisions of subsection (c) of Section 252 of the General Corporation Law of the Stats of Delaware, 10 wit, by Getty Oil F.)1001811011 Company lire the 541110 manner as is provided in Section MI of the. General Corporation taw of the State of Delaware and by Chevron U.S.A. Inc. in accordance with the laws of the State of its incorporation. 3. The name of the surviving corporation in the merger herein certified is Chevron U.S.A. Inc., which will continue its .existence as said surviving corporation under the name Chevron USA. Ync. upon the effective date of said tomer pursuant to the providons:.oE the laws of the State of its incorporation. 4. The catificate of ItaCozpo[ation of Chevron U.S.A. Inc., es now in force and effect, shall continue to be the certificate of incorporation of said surviving corporation until amended and changer! piwsuant to the provisions of the laws of the Slate ofits incorporation. 5. The executed Agreement of Merger between the aforesaid constituent corporations is on file at m office of the aforesaid surviving corporation at: 575 Market Street, San Francfsco,CA 94101 11111111111111111111111111111111111111111111111 1111 1111 668006 62/22/266802:67P 61664 P369 M 111400Ri= 3 of 3 R 16,00 D 0.00 GARFIELD COUNTY CO 6, A copy of the Aforesaid Agreement of Merger will be furnished by the aforesaid surviving corporation, on request, and without cost, to any siockhalder of each of the aforesaid constituent corporations, 7. The aforesaid surviving corporation dna hereby agree that it may be Served with process in :he State of Delaware in any proceeding for enforcement of any obligation of Getty Oil Exploration Company, ns well as for eofortement of any obligation of said surviving corporation arising from the merger herein certified, Including any snit or other proceeding to enforce the right, if uny. of any stockholder of Getty Oil Exploration Company as determined in apprdisal proceeding; pursuant to the provisions of Section 252 of the General Corporation taw of the State of Delaware does hereby irrevocably appoint the Secretary of State of the State of Delaware as its agent to accept service of process in any such suitor Other proceedings., and does hereby specify the following ss the address to which a copy of subh process shall be mailed by the Secretary of Status of the State of Delaware; Corporate Secretary Department, Chevron U.S.A. Inc., 575 Market. San Francisco, CA 94105. 8. The merger is to become effective on May 1, 2002, 2,00 P.M,, Eastern Standard Time. Dated: May 1, 2002 CHEVRON U.S.A. IFC. $y; k/FYnnir (r• Colpr Frank G. Soler Its: Assistant Secretary