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Home My WebLink About1.0 ApplicationENCANAM ''''' 7''/4' East Dry Hollow Loop Phase 2 Pipeline Development Plan September 2008 GARFIELD COUNTY Building & Planning Department 108 8th Street, Suite 401 Glenwood Springs, Colorado 81601 Telephone: 970.945.8212 Facsimile: 970.384.3470 www.garfield-county.com RECEIVED SEP 0 5 2008 GAM -11:W COUNTY BUILDING & PLANNING PIPELINE DEVELOPMENT PLAN Doc # P boVNO<6 GENERAL INFORMATION (Please print legibly) ➢ New X Amended ❑ > Name of Pipeline Owner: EnCana Oil & Gas (USA) Inc. > Mailing Address: 2717 County Road 215, Suite 100 Telephone: ( 970 ) 285-2825 ➢ City: Parachute State:C° Zip Code: 81635 Cell: ( 970 ) 319-8890 > E-mail address: renata.busch@encana.com FAX: ( 970) 285-2691 Permit and ROW Coordinator ➢ Name of Owner's Representative, if any, (Attorney, Planner, Consultant, etc): > Mailing Address: Telephone: ( ) ➢ City: State: Zip Code: Cell: ( ) ➢ E-mail address: FAX: ( ) > Description of Project: East Dry Hollow Loop Phase 2 Pipeline; approximately 2.33 miles of up to 20 -inch diameter, 0.281 inch wall, X52/60 FBE buried, steel, natural gas pipeline > General Location of Pipeline (Right -of -Way): Mamm Creek Field, Garfield County, CO Construction right-of-way width will be approximately 60 feet; paralleling EnCana's existing 8 and 12 -inch gaslines > Diameter and Distance of Pipeline: Up to 20 -inch diameter and approximately 12,302 feet in length ➢ General Legal Description: Sections 1, 2, 3, 10 and 11, Township 7 South, Range 92 West and Section 36, Township 6 South, Range 92 West; parcel #'s noted in Tab 4 > Existing Use: Previously disturbed pipeline corridor ➢ Pipeline Row Distance (in acres) Approximately 16.95 acres i Zone District: Agriculture Residential Rural Density Last Revised 8/26/08 ENCANA OIL& GAS (USA) INC. EAST DRY HOLLOW LOOP IASE 2 PIPELINE I. APPLICATION SUBMITTAL REQUIREMENTS As a minimum, specifically respond to all the following items below and attach any additional information to be submitted with this application: Development Plan Submissions: The applicant shall submit eight copies of the proposed development plan with the completed application form to the Planning Director. The following information must be submitted with.a development plan application: (1) Vicinity map indicating the section, township, and range of the site, and its relation to surrounding public roads and municipal boundaries_ Project maps are provided in Attachment 1. (2) Project Overview: a description of the project including the length of the pipeline, diameter of the pipeline, pipeline commodity, and the general description of the pipeline route. EnCana Oil & Gas (USA) Inc. (EnCana) is proposing the installation of a new up to 20 -inch diameter buried steel, low pressure gathering pipeline in the Mamm Creek field. This East Dry Hollow Loop Phase 2 Pipeline (project) involves construction, operation, and maintenance of a new trunk pipeline. The 20 -inch pipeline will gather and transport natural gas from existing and new wells in the eastern portion of the Mamm Creek field. The 20 -inch pipeline will be approximately 12,302 in length. The pipeline and related above -ground facilities will be located in Garfield County, Colorado. The proposed project is approximately 2.33 miles in length of up to 20 -inch diameter steel pipe. The 20 -inch pipeline is designed to a Maximum Allowable Operating Pressure (MAOP) of 435 psig (30% of SMYS) ANSI B31.8 with a Location 2 (0.6) safety design factor. The pipeline will be constructed using X-52 grade pipe, 0.281 inch wall thickness, and ANSI 300 rated flanges. The system will be pressure protected with a Pressure Safety Valve (PSV) to prevent over- pressuring. The pipeline will require above -ground appurtenances (block valves; -pig launchers and receivers) at both ends of the pipeline. Additional above ground appurtenances will be required to connect existing gathering lines to the new 20 -inch loop line. A PSV will be installed at the Hunter Mesa Compressor Station. (3) Ownership A. For individual right-of-way, a diagram showing adjacent properties and the approximate location of buildings and their uses within a distance of 350 feet of any proposed structure, facility, or area to be disturbed. This may be drawn at a smaller scale than the site plan. B. For an area plan, the map will show the property boundaries and ownership information for all private and public property include in the development area. There are two buildings within 350 feet of the proposed project. Reference the Garfield County Assessors Map provided in Attachment 1. DEVELOPMENT PLAN APPLICATION 09/05/2008 ENCANA OII. & GAS (USA) INC. EAST DRY HOLLOW LOOP PHASE 2 PIPELINE (4) Evidence of surface owner notification and of surface agreements where the surface owner is not a party to the mineral lease. The pipeline crosses five landowners and EnCana. All landowners within 200 feet of the project are affected surface owners. Please note that EnCana did not determine if the surface owners are party to the mineral lease and is instead providing copies. of Right -of -Way. Easementsfor each surface landowner. Notifications will be sent to landowners via return -receipt and notice signs will be posted on the portions of the route crossing or adjacent to a public road. Landowner information is provided in Attachment 4. Reference Attachment 1 for the Garfield County Assessors Map depicting affected surface owners. (5) Need for Proposed Action: a statement of the reason for the pipeline. The purpose of the 20 -inch line is to loop the existing 8 -inch and 12 -inch gas lines. EnCana's drilling activity is expected to increase in this area over. the next two to three years and 3`d party companies want to take advantage of EnCana's existing infrastructure and deliver gas into our system. This activity will result in greater gas volumes (an additional 35 to 60 mmscfd rate) in the vicinity of this pipeline. The current 8 -inch and 12 -inch pipelines are too small for the projected volumes and would create greater pressures (approximately 290 psig) in the area. This increased gathering system pressure would adversely effect well performance and potentially cause mature wells to be shut-in. (6) Regulatory Permit Requirements: a table indicating the permit agency name, permit/action driving task and the task to be performed to obtain the permit. Required Permits—Pipelines Agency Permit or Consultation "" Applicability Federal Department of Defense Sacramento District Corps of Engineers – Grand Junction, Colorado Nationwide General Permit (NWP) 12 Construction within waters of the United States. State of Colorado Department of Public Health and Environment Water Quality Control Division Construction Stormwater Permit Discharge of stormwater -from a construction site. Local -Colorado 2 DEVELOPMENT PLAN APPLICATION 09/05/2008 ENCANA OIL& GAS (USA) INC. EAS r DRY HOLLOW LOOP PHASE 2 PIPELINE Required Permits—Pipelines Agency Permit or Consultation Applicability Garfield County Development Plan Installation of pipelines A copy of the NWP 12 Pre -Construction Notification is provided irt-Attachment 2. EnCana has an existing Colorado Department of Public Health and Environment (CDPHE) Stormwater Permit and a copy is provided in Attachment 3. (7) Primary Project Participants: Include the names, address, and phone numbers of the company representative, company and individual acting as an agent for the company, construction company contacts, federal and state agency contacts. Project Participants Name Title Address ' Telephone/Cell EnCana Dewey Neely Construction Coordinator (general contact in case of an emergency for this project) 2717 CR 215, Suite 100, Parachute, CO 81635 (970) 285-2632 office (970) 250-9462 cell Renata Busch Pennit and ROW Coordinator 2717 CR 215, Suite 100, Parachute, CO 81635 (970) 285-2825 office (970) 319-8890 cell Bob Anderson Pipeline Inspector 2717 CR 215, Suite 100, Parachute, C0.81.635. (970) 285-2622 office (303) 880-0038 cell Agency Contacts Army Corps of Engineers – Colorado/Gunnison Basin Regulatory Office Susan Nall Environmental Engineer 402 Rood Ave, Room 142 Grand Jct., CO 81501 ' (970)243-1199office CDPHE WCQD - Stormwater Nathan Moore Environmental Engineer4300 Cheny Creek South , Denver, CO 80202 (303) 692-3555 office Garfield County Planning Department Fred Jarman Director 108 8th Street, Suite 401 Glenwood Springs, CO 81601 (970) 945-8212 office (8) Project Facilities: Identify any permanent project facilities such as permanent right-of-ways, widths, meter stations, valve sets, etc. The construction right-of-way (ROW) widths vary between landowners from 55 feet to 65 feet and those widths are depicted in the Right -of -Way Limits Box on the Plan and Profile provided in Attachment 1. The 20 -inch line will parallel EnCana's existing lines and a minimum 15 foot off -set will be maintained from edge of existing pipelines. The pipeline will require above- ground appurtenances (block valves, pig launchers and receivers) at both ends of the pipeline. DEVELOPMENT PLAN APPLICATION 09/05/2008 3 ENCANA OIL & GAS (USA) INC. EAST DRY HOLLOW LOOP PHASE 2 PIPELINE Additional above ground appurtenances will be required to connect existing gathering lines to the new 20 -inch loop line. (9) Construction Schedule: indicate the estimated start and end dates for construction, days of the week in which construction will occur, hours of day during which construction will occur. Construction activities will begin after project approval by the Garfield County Planning Department. Construction activities are anticipated to last 8 to 10 weeks. Construction activities are tentatively scheduled for November 2008 and will continue through January 2009. Working hours will normally range from sunrise to sunset Monday through Saturday. (10) Sensitive Area Survey: List the types and areas of concern along the pipeline right-of-way, such as: sensitive plant populations, cultural, archeological, paleontological resources and wetlands identified during pre -construction environmental surveys, if applicable. WestWater Engineering, Inc. (WestWater) has completed the biological assessments of the East Dry Hollow Loop Phase 2 pipeline. The project route was surveyed for sensitive resources during the summer of 2008. The Sensitive Resource Reports for the project are provided in Attachment 5. Biological surveys were completed on August 18, 2008. The followingwildlife impact assessments were identified: • possible loss of winter range to a small number of mule deer and elk that utilize the site. • possible loss of foraging and nesting vegetation/habitat to a small number of bird species. Also completed were surveys for federally listed threatened and endangered plants and BLM sensitive species plants along the project right-of-way. No sensitive plant species were observed along the right-of-way. No wetlands were identified during construction of EnCana's existing pipelines along the projected corridor. The pipeline project will be constructed within an existing disturbance and will not impact any known wetlands. (11) Land Grant/Permits/Authorizations and Stipulations: attach a copy of any land grants, permits, and authorizations including stipulations. A copy of the Stormwater Discharge Permit is provided in Attachment 3. (12) Revegetation Plan: a. A plant material list. Be specific, scientific and common names are required. Include application rate in terms of pure live seed (PLS) per acre/. b. A planting schedule that includes timing, methods, and mulching: c. A revegetation security. A security may be required if, in the determination of the County Vegetation Management, the proposed project has: (i) A potential to facilitate the spread of noxious weeds. (ii) A potential to impact watershed areas. DEVELOPMENT PIAN APPLICATION 09/05/2008 ENCANA 011. & GAS (USA) INC. EAST DRY HOLLOW LOOP PHASE 2 PIPELINE (iii) A potential for visual impacts from public viewing corridors. (iv) Steep slopes (15% or greater) or unstable areas. (v) Disturbs large areas (Half an acre or greater) d. The revegetation security will be in an amount to be determined by the County Vegetation Management that will be site-specific and based on the amount of disturbance. The security shall be held by Garfield County until vegetation has been successfully reestablished, or for a period of time approved by the County Vegetation Management in any specific land use action, according to the Reclamation & Revegetation Standards Section in the Garfield County Weed Management Plan. The County Vegetation Management will evaluate the reclamation and revegetation prior to the release of the security. Based on the soil types, terrain, and the presence of noxious weeds in the pipeline ROW, successful reclamation is most likely if a seed mix of grasses is used. Two seed mixes are recommended for the East Dry Hollow Loop Phase 2 project based on the soil type and available moisture; one for the drier pinon/juniper/sagebrush sites and one for the meadow/riparian sites with more moisture. Recommended Seed Mix For Arid Sites - East Dry Hollow Loop Phase 2 Pipeline (Pifiion-Juniper Woodland and/or Mountain/Wyomin_ Big Sagebrush Shrubland, BLM — GSFO) Common Name Variety Variety Application Rate lbs PLS/acre Mountain Brome Plant the Following (10% Total) Indian Ricegrass Slender Wheatgrass Nezpar, Paloma, Rimrock 1.9 And One of the Following (20% each, 60% Total) And Both of the Following (15% each, 30% Total) Galleta Viva 2.5 Bluebunch Wheatgrass Secar 2.8 And One of the Following (20% Total) Thickspike Wheatgrass Critana 3.4 Slender wheatgrass San Luis 3.3 And Two of the Following (40% Total) Muttongrass 0.6 Sandberg Bluegrass 0.6 Bottlebrush Squirreltail 2.7 Total 17.8 lbs PLS/acre Recommended Seed Mix For Meadow and Riparian Sites — East Dry Hollow Loop Phase 2 Pipeline (Spruce -Fur Forest, Including Mountain Meadows, BLM - GSFO) Common Name Variety Application Rate lbs PLS/acre And Both of the Following (20% each, 40% Total) Mountain Brome Garnet 5.8 Slender Wheatgrass San Luis 3.3 And One of the Following (20% each, 60% Total) DEVELOPMISNI PLAN APPLICATION 09/05/2008 5 ENCANA 011. & GAS (USA) INC. EAST DRY HOLLOW LOOP PHASE 2 PIPELINE Letterman Needlegrass 3.5 Blue Wildrye Arlington 4.8 Thickspike Wheatgrass Critana 3.4 Idaho Fescue Joseph 1.2 Wheeler Bluegrass 0.6 Total 22.6 lbs PLS/acre For best results and success, the recommended grass mixture reseeding should be done in late autumn. The reseeding rate should be doubled for broadcast. application.. Preferred seeding. method is multiple seed bin rangeland drill with no soil preparation other than simple grading to slope and imprinting and waterbars where applicable. Alternative seeding methods include but are not limited to: • harrow with just enough soil moisture to create a rough surface, broadcast seed and re- harrow, preferably at a 90 degree angle to the first harrow; • hydro -seeding (most economical in terms of seed cost); and • hand raking and broadcast followed by re -raking at a 90 degree angle to the first raking. These are not the only means of replanting the site. However, these methods have been observed to be effective in similar landscapes. EnCana will provide a Revegetation Security to Garfield County for the amount of $42,375 or $2,500 per acre of disturbance for the East Dry Hollow Loop Phase 2 Pipeline. A copy of the Permit Bond is provided in Attachment 8. The original, signed instrument will be forwarded to Garfield County upon receipt. (13) A weed management plan for all Garfield County listed noxious weeds and State of Colorado listed noxious weeds that are targeted by the Commissioner of Agriculture for statewide eradication. Field inspections of the proposed gathering system links and site were conducted by WestWater biologists on February 20 and August 18, 2008. Most weeds observed during both surveys were found within waterway drainages and previously disturbed areas such as the existing gas line ROW. Noxious weeds observed included chicory, common burdock, houndstongue, jointed goatgrass, musk thistle and Russian knapweed. The Integrated Vegetation and Noxious Weed Management Plan are provided in Attachment 5. (14) Emergency Response Plan: include a fire protection and hazardous material spills plan, which specifies planned actions for possible emergency events, a listing of persons to be notified of all emergency events, a listing of person to be notified of an emergency event, proposed signage, and provisions for access by emergency response teams. The emergency plan must be acceptable to the appropriate fire district or the County Sheriff, as appropriate. The plan shall include a provision for the operator to reimburse the appropriate emergency service provider for costs incurred in connection with emergency response for the operator's activities at the site. 6 DEVELOPMENT PLAN APPLICATION 09/05/2008 ENCANI\ OIL & GAS (USA) INC. EAST DRY HOLLOW LOOP PHASE 2 PIPELINE The EnCana Emergency Response Plan is provided in Attachment 6. In case of an emergency during this operation, the general contact person would be Dewey Neely, Construction Coordinator and his contact numbers can be found in Section 2.6 under Project Participants. The following table contains contact information for Emergency Services: Emergency Contact List Outside Agencies Service Name Address Phone Emergency 911 Air Evacuation St. Mary's Care Flight Grand Junction, CO (800) 332-4923 - Ambulance & Fire Parachute Fire Dept. Parachute, CO (970) 285-7711 Rifle Fire Dept. Rifle, CO (970) 625 - Hospitals Glenwood Springs Valley View Hospital 1906 Blake Avenue Glenwood Springs, CO (970) 945-6535 Grand Junction St. Mary's Hospital & Medical Center 2635 N. 7th Street `Grand Junction, CO ' (970) 244-2273 - Rifle Grand River Hospital District 501 Airport Road Rifle; CO (970) 625 -15i0. - Medical Clinics Battlement Mesa Battlement Mesa Clinic 73 Sipprelle, Suite K Parachute, CO (970) 285-7046 Rifle Grand River Medical Center 501 Airport Road Rifle, CO (970) 625-1510 Poison Control (800) 332-3473 Police Rifle Police Dept. 202 Railroad Ave. Rifle, CO (970) 625-8095 Sheriff Garfield County Sheriff 107 8th Street Glenwood Springs, CO (970) 945-0453 State Patrol State of Colorado 202 Centennial Drive Glenwood Springs, CO (970) 945-6198 " State Patrol (Dispatch) (970) 625-8095 EnCana would reimburse the appropriate emergency service provider for costs incurred in connection with emergency response for activities associated with this project. The Spill Plan serves as a guide to assist personnel in the proper response to an emergency incident and identifies emergency notification and state agency names and phone numbers that shall be contacted in the event of a spill. The successful handling of any. oil discharge.depends..on. four different operations: 1) Containment, 2) Removal, 3) Disposal, and 4) Cleanup which are summarized in the Spill Plan provided in Attachment 7. The Stormwater Management Plan provided in Attachment 3 also provides information .with regards to spill prevention. . (15) Traffic Impact: for construction traffic on county roads, indicate the anticipated types of vehicles, number of each type, anticipated number of trips per day per DEVELOPMENT PIAN APPLICATION 09/05/2008 7 ENCANA OIL & GAS (USA) INC. EAST DRY HOLLOW LOOP Pi ASE 2 PIPELINE each type, county roads to be used, percentage of the construction traffic that will travel on each listed county. Divide Creek Road will be used to access the project. Construction traffic will consist of approximately 12 pickup trucks and 2 crew trucks including EnCana personnel, plus 2- haul trucks to get the equipment on location. Construction of the pipeline could result in estimated pickup traffic of approximately 15 commuter round trips per day. Impacts will be temporary and will cease when construction of the pipeline is complete. (16) Staging Areas: indicate the general location of the staging areas required for pipeline construction. There are no construction staging areas or yards associated with this project. (17) Hydrotest Water: indicate the quantity of water required, source of water and the disposition of the water after testing. The pipe will be pressure tested in accordance with ANSI B31.8. The result of this pressure test is an established Maximum Allowable Operating Pressure (MAOP). II. Referral and Review by the Planning Director: The Planning Director will coordinate the review of the development plan application. Upon the filing of a complete application for development plan review, the Planning Director shall promptly forward one copy to the County Road & Bridge, Oil & Gas Auditor, Vegetation Management and Engineering Departments; the appropriate fire district or County Sheriff; the surface owners of an individual pipeline development plan; and any adjacent municipality for comment. (1) Referral comments on the proposed development shall be returned to the Planning Director no later than 18 days from the date of application for an individual site application and 30 days from the date of application for an area development plan. (2) In addition, the applicant shall notify the property owners within 200 feet of the route that are not affected surface owners with an agreement with the applicant. A sign will be posted on the portions of the route crossing or adjacent to a public road within seven days after receiving the application for an individual development plan review. Both the notice and the sign shall indicate that a development plan review application has been made, and the phone number of the Planning Department where information regarding the application may be obtained. The applicant shall notify all property owners within 200 feet of the outside boundary of an area development plan and post a sign at the intersection of each public road entering the area within seven days after receiving the application for 8 DEVELOPMENT PLAN APPLICATION 09/05/2008 (3) ENCANA OH. & GAS (USA) INC. EAST DRY FIOLLO\v LOOP PHASE 2 PIPELINE an area development plan review. Both the notice and the sign shall indicate that a development plan review application has been made, and the phone number of the Planning Department where information regarding the application may be obtained. Any determination by the Planning Director to approve or conditionally approve a development plan application must be in writing and mailed or otherwise provided to the applicant no later than 28 days for an individual pipelinedevelopment plan or 60 days for an area pipeline development plan, after the date on which the development plan application is filed. Failure to make a determination on the application within this time period shall result in the application beingconsidered approved and the applicant's building permit or access, or other permits being processed. III. Development Plan Review Standards and Criteria for Approval: A development plan shall be approved or conditionally approved in accordance with the following standards and criteria. (1) Right-of-way and any associated facilities shall be located along the perimeters of surface property ownerships and not within areas of agricultural crop production as a general guide. Non -perimeter locations will be acceptable if the surface owner agrees and there is no adverse impact on adjacent properties. (2) Any equipment used in construction or operation of a pipeline must comply with the Colorado Oil and Gas Conservation Commission Rules and Regulations, Section 802, Noise Abatement. a. For any pipeline construction or operational facility that will have a substantial impact in adjacent areas, additional noise mitigation may be required. One or more of the following additional noise mitigation measures may be required: (i) acoustically insulated housing or covers enclosing any motors or engines (ii) screening of the site or noise emitting equipment by fence or landscaping (iii) noise management plan specifying the hours of maximum noise and the type, frequency, and thelevel of noise to be emitted; and (iv) any other noise mitigation measures required by the COGCC. b. All power sources used in pipeline operations shall have electric motors or muffled internal combustion engines. Pipeline operations shall be located in a manner to minimize their visual impact and disturbance of the land surface, to the extent practical. a. The location of right-of-way shall be away from prominent natural features and identified environmental resources. b. Right-of-way shall be located to avoid crossing hills and ridges, and wherever possible, shall be located at the base of slopes. c. Facilities shall be painted in a uniform, non -contrasting, non -reflective color, to blend with the adjacent landscape. (3) DEVELOPMENT PLAN APPLICA1ION 9 09/05/2008 ENCANA OIL & GAS (USA) INC. EAsr DRY HOLLOW LOOP PHASE 2 PIPELINE (4) Access points to public roads shall be reviewed by the County Road & Bridge Department and shall be built and maintained in accordance with the Garfield County Road Specifications. All access and oversize or overweight vehicle permits must be obtained from the County Road & Bridge Department prior to beginning operation. All proposed transportation right-of-way to the site shall also be reviewed and approved by the County Road & Bridge Department to minimize traffic hazards and adverse impacts on public roadways. Existing roads shall be used to minimize land disturbance unless traffic safety, visual or noise concerns, or other adverse surface impacts clearly dictate otherwise. Any new roads created as a result of the pipeline construction, intended to be permanent for maintenance and repair operations shall be placed behind a locked gate or other barriers preventing use by recreational vehicles. Any gates or barriers need to be consistent with the surface owners' preferences. (5) In no case shall an operator engage in activities which threaten an endangered species. (6) Air contaminant emissions shall be in compliance with the applicable permit and control provisions of the Colorado Air Quality Control Program, Title 25, Resolution 7, C.R.S. (7) All operations shall comply with all applicable State Public. Health and Environment, Water Quality Control standards. (8) Any proposed waste disposal or treatment facilities shall comply with all requirements of the County Individual Septic Disposal System Regulations. (9) The proposed reclamation plan shall provide for a reasonable reclamation schedule in light of the specific surface use and surrounding land uses, and may require recontouring and revegetation of the surface to pre -disturbance conditions. The Planning Director may also approve a plan for an alternativepost- disturbance reclamation, provided the surface owner and the applicant agree, and the plan is in harmony with the surrounding land uses and the Comprehensive Plan. (10) Should an abandoned pipeline be removed, it will be subject to the original revegetation and weed management requirements in the original application. IV. Conditions of Approval: (1) If the Planning Director finds in reviewing a development plan application that the application meets the applicable standards set forth above, the Planning Director shall approve the site plan, and the applicant may continue the processing of the building or other associated County permit applications, or..otherwise engage in the construction of the proposed pipeline. (2) If the Planning Director finds that the application does not meet an applicable standard or standards, the application shall be approved with appropriate 10 DEVELOPMENT PLAN APPLICATION 09/05/2008 (3) ENCANA OIL& GAS (USA) INC. EAST DRY HOLLOW LOOP PHASE 2 PIPELINE reasonable conditions imposed to avoid or minimize the significant adverse impacts of the development. Such conditions may include, but are not necessarily limited to, the relocation or modification of proposed access roads, facilities, or structures; landscaping, buffering, or screening; posting of adequate financial guarantees; compliance with specified surface reclamation measures; or any other measures necessary to mitigate any significant impact on surrounding properties and public infrastructure. Once the Planning Director issues a determination on the development plan, the determination shall not be final, and no permit based upon the determination shall be issued, for 14 calendar days after the dateof thedetermination, in order to allow time for the applicant to appeal, or for the Board of County Commissioners to call up the determination for further review, pursuant to Sections 9-502 and 9- 503 of this Resolution. The Planning Director's determination shall become final, and permits applied for in accordance with the determination may be issued, only after the expiration of this 14 -day period, and only if the determination is not reviewed and acted upon by the Board of County Commissioners at a subsequent appeal or call-up hearing. I have read the statements above and have provided• the required attached information which is correct accurate to the best of my knowledge. C-_____/ ? << / .mss 6' _6 s -0 9 (Signature o' applicant/owner) Last Revised: 02/2006 Renata Busch DEVELOPMENT PLAN APPLICATION I I 09/05/2008 GARFIELD COUNTY BUILDING AND PLANNING DEPARTMENT AGREEMENT FOR PAYMENT FORM (Shall he submitted with application) GARFIELD COUNTY (hereinafter COUNTY) and Encana Gil . Gas (USA) , Inc (hereinafter APPLICANT) agree as follows: 1. APPLICANT has submitted to COUNTY an application for Pipeline Development Plan (East Dry Hollow Loop Phase 2) (hereinafter, THE PROJECT). 2. APPLICANT understands and agrees that Garfield County Resolution No. 98-09, as amended, establishes a fee schedule for each type of subdivision or land use review applications, and the guidelines for the administration of the fee structure. 3, APPLICANT and COUNTY agree that because of the size, nature or scope of the proposed project, it is not possible at this time to ascertain the full extent of the costs involved in processing the application. APPLICANT agrees to make payment of the I3ase Fee, established for the PROJECT, and to thereafter permit additional costs to be billed to APPLICANT. APPLICANT agrees to make additional payments upon notification by the COUNTY when they are necessary as costs are incurred. 4. The Base Fee shall be in addition to and exclusive of any cost for publication or cost of consulting service determined necessary by the Board of County Commissioners for the consideration of an application or additional COUNTY staff time or expense not covered by the Base Fee. If actual recorded costs exceed the initial Base Fee, APPLICANT shall pay additional billings to COUNTY to reimburse the COUNTY for the processing of the PROJECT mentioned above. APPLICANT acknowledges that all billing shall be paid prior to the final consideration by the COUNTY of any land use permit, zoning amendment, or subdivision plan. Renata Busch Print Name Mailing Address: 2717 County Road 215, Suite 100 Parachute, CO 81635 10/2004 Page 4 EAST DRY HOLLOW LOOP PHASE 2 Pipeline Garfield County Development Plan Application Narrative September 2008 Applicant: EnCana Oil & Gas (USA) Inc. 2717 County Road 215, Suite 100 Parachute, Colorado 81635 TABLE OF CONTENTS Table of Contents 1 1.0 Introduction 1 1.1 Project Description 1 1.2 Purpose and Need 1 1.3 Location 1 1.4 Facilities 1 1.4.1 Project Design 1 1.5 Land Requirements 1.5.1 Right -of -Way 2 1.5,2 Corridor 2 1.5.3 Disturbance 2 1.5.4 Contractor/Pipe Storage/Offloading Yards 2 1.5.5 Above -ground Appurtenances 2 2.0 Development Plan Requirements 2 2.1 Attachments 2 2.1.1 Attachments 2 2.2 Construction Schedule 3 2.3 Construction Methods 3 2.3.1 Plan of Development 3 2.3.2 Construction Sequence 3 2.3.2.1 Engineering Surveys 3 2.3.2.2 Clearing, Grading, and Topsoiling 3 2.3.2.3 Trenching 3 2.3.2.4 Pipe Installation 4 2.3.2.5 Backfilling 5 2.3.2.6 Cleanup 5 2.3.3 Road Crossings/Installation 5 2.3.4 Drainage and Stream Crossings/Installation 5 2.4 Required Permits 5 2.5 Ownership and fee -landowner documentation 6 2.5.1 Ownership and Notifications 6- 2.5.2 Buildings 6 2.6 Project Participants 6 2.7 Sensitive Area Surveys 7 2.7.1 Biological 7 2.7.2 Wetlands 7 2.8 Revegetation g 2.9 Weed Management Plan 9 2.10 Emergency Response and Spill Prevention 10 2.11 Traffic Impact 11 2.12 Staging Areas/Construction Yards 11 2.13 pipe tests 11 3.0 Post -Construction Activities 11 3.1 Maintenance and Operation 11 4.0 Mitigation Measures 12 4.1 Noxious Weeds 12 4.2 Erosion and Stormwater 12 4.3 Threatened, Endangered, and Sensitive species 12 4.4 Cultural Resources 13 4.5 Air Quality 13 4.6 Solid Waste Management 13 4.7 Hazardous Materials Management 13 1.0 INTRODUCTION 1.1 PROJECT DESCRIPTION EnCana Oil & Gas (USA) Inc. (EnCana) is proposing the installation of a new up to 20 -inch diameter buried steel, low pressure gathering pipeline in the Mamm Creek field. This East Dry Hollow Loop Phase 2 pipeline (project) involves construction, operation, and maintenance of a new trunk pipeline. The 20 -inch pipeline will gather and transport natural gas from existing and new wells in the eastern portion of the Mamm Creek field. The 20 -inch pipeline will be approximately 12,302 feet (approximately 2.33 miles) in length. Project maps are included in Attachment 1. 1.2 PURPOSE AND NEED The purpose of the 20 -inch line is to loop the existing 8 -inch and 12 -inch gas lines. EnCana's drilling activity is expected to increase in this area over the next two to three years and 3rd party companies want to take advantage of EnCana's existing infrastructureand deliver gas. Tato our system. This activity will result in greater gas volumes (an additional 35 to 60 mmscfd rate) in the vicinity of this pipeline. The current 8 -inch and 12 -inch pipelines are too small for the projected volumes and would create greater pressures (approximately 290 psig) in the area. This increased gathering system pressure would adversely effect well performance_. and potentially cause mature wells to be shut-in. 1.3 LOCATION The pipeline is located in the Mamm Creek Field in Garfield County, CO. The proposed route crosses thru Sections 1, 2, 3, 10 and 11, Township 7 South, Range 92 West and Section 36, Township 6 South, Range 92 West. Pipeline construction will begin east of the P3 pad and end at the OlE pad. 1.4 FACILITIES 1.4.1 Proiect Design The proposed project is approximately 2.33 miles in length of up to 20 -inch diameter steel pipe. The 20 -inch pipeline is designed to a Maximum Allowable Operating Pressure (MAOP) of 435 psig (30% of SMYS) ANSI B31.8 with a Location 2 (0.6) safety design factor. The pipeline will be constructed using X-52 grade pipe, 0.281 inch wall thickness, and ANSI X00 rated -flanges. The system will be pressure protected with a Pressure Safety Valve (PSV) to prevent over- pressuring. The pipeline will require above -ground appurtenances (block valves, pig launchers and receivers) at both ends of the pipeline. Additional above ground appurtenances will be required to connect existing gathering lines to the new 20 -inch loop line. The pipeline will be buried at least 48 inches in depth. EnCana will design and construct the pipeline and related facilities in conformance with the requirements of Title 49 CFR, Part 192, "Regulations for the Transportation of Natural Gas and Other Gas by Pipeline: Minimum Federal Safety Standard". 1.5 LAND REQUIREMENTS 1.5.1 Right -of -Way The construction right-of-way (ROW) widths vary between landowners from 55 feet to 65 feet and those widths are depicted in the Right -of -Way Limits. Box on the Plan and P.rofile provided in Attachment 1. The 20 -inch line will parallel EnCana's existing lines and a minimum 15 foot off -set will be maintained from edge of existing pipelines. 1.5.2 Corridor The proposed route will parallel EnCana's existing 8 and 12 -inch gas lines and will be installed within this existing ROW. Disturbance will be minimal.due to the route being in a previously disturbed pipeline corridor. 1.5.3 Disturbance The projected pipeline route will disturb approximately 16.95 acres in Garfield County. EnCana has selected a route which will parallel an existing pipeline corridor, of which acreage along the proposed route has been previously disturbed from construction activities. 1.5.4 Contractor/Pipe Storage/Offloading Yards EnCana's contractors will haul the pipe used for the project from a pipe wholesale distributor located in Garfield County and no pipe yards will be necessary for the construction of the project. 1.5.5 Above -ground Appurtenances The pipeline will require above -ground appurtenances (block valves, pig launchers and receivers) at both ends of the pipeline. Additional above ground appurtenances wilt be required to connect existing gathering lines to the new 20 -inch loop line. 2.0 DEVELOPMENT PLAN REQUIREMENTS 2A ATTACHMENTS 2.1.1 Attachments This Development Plan includes the following attachments: Attachment 1 — Attachment 2 — Attachment 3 Attachment 4 Attachment 5 Attachment 6 Attachment 7 Attachment 8 Project Maps Permits — Stormwater — Landowner hrformation — Resource Surveys — Emergency Response Plan — Spill Plan — Revegetation Security 2 2.2 CONSTRUCTION SCHEDULE Construction activities will begin after project approval by the Garfield County Planning Department. Construction activities are anticipated to last 8 to 10 weeks. Construction activities are tentatively scheduled for November 2008 and will continue through January 2009. Working hours will normally range from sunrise to sunset Monday through Saturday. 2.3 CONSTRUCTION METHODS 2.3.1 Plan of Development EnCana has developed a Plan of Development, which describes construction methodsand measures to be taken by EnCana during construction, operation, and maintenance of the project. The Plan of Development is provided to project personnel, to establish guidelines for construction and operation of the project and to address mitigation. 2.3.2 Construction Sequence The following section provides a description of each phase of standard construction during the project. The following operations are typical during a construction project. 2.3.2.1 Engineering Surveys The construction ROW will be marked prior to construction with laths and/or flagging. Laths/flagging will be maintained throughout construction and will not be removed until after reclamation activities have been completed. 2.3.2.2 Clearing, Grading, and Topsoiling Clearing, topsoiling, and grading will be limited to the minimum area required for safe and efficient construction. Available topsoil, up to a depth of six inches, will be segregated from the trenchline only. Where grading is required, topsoil will be stripped from the entire portion of the ROW. Topsoil will be removed and stockpiled, and the right-of-way will be graded only to the extent necessary to create safe and efficient pipeline installation conditions. 2.3.2.3 Trenching The ditch will be excavated and sloped in accordance with OSHA specifications. The cover from top of pipe to ground level will be a minimum of 48 inches. Where rock is encountered, tractor - mounted mechanical rippers or rock trenching equipment may be used to facilitate excavation. The bottom of the trench line will remain free of rocks and debris to allow for a solid surface to install the pipe. The trench will be excavated and subsoil material stockpiled at the edge of the workspace. Based on field conditions, gaps will be made in subsoil stockpiles to avoid ponding or excessive diversion of natural runoff during storm events. 2.3.2.4 Pipe Installation Pipe installation will include stringing, bending welding the pipe segments together, coating lowering -in and padding as described in greater for horizontal or vertical angles in the alignment, the joint areas to prevent corrosion, and then detail below. Strin in Pipe will be hauled by truck to the pipeline right-of-way. Each joint of pipe willbe unloaded and placed parallel to the ditch. Each section of pipe will be stacked on timber skids to stabilize the pipe until welding is completed. Bendin After the joints of pipe are strung along the ditch, individual joints of pipe will be bent to accommodate horizontal and vertical changes in direction. Field bends will be made utilizing a. hydraulically operated bending machine. Where the deflection of a bend exceeds the allowable limits for a field -bent pipe, factory (induction) bends will be installed. Weldin After the pipe joints are bent, the pipe will be lined up end-to-end and clamped into position. The two joints of pipe will be evenly spaced within the clamps to ensure that the pipes are properly aligned, before welding begins. The pipe is then welded in conformance with 49 CFR Part 192, Subpart E. "Welding of Steel Pipelines" and API 1104, "Standard for Welding Pipelines and Related Facilities". Welding Inspection Welds will be visually inspected by a qualified inspector. Any defects will be repaired or cut out as required under the specified regulations and standards. re To prevent vent corrosion, the pipe will be externally coated with fusion bonded epoxy coating prior to delivery. After welding, field joints will be coated with fusion bond epoxy coating, tape and primer, or shrink sleeves. Before the pipe is lowered into the ditch, the pipeline coating will be visually inspected and tested with an electronic detector, and any faults or scratches will be repaired. Lowering -in and Padding Once the pipe coating operation has been completed, a section of the pipe will be lowered into the ditch. Padding or placement of sand bags along the bottom of the trench line may occur before the pipe section is lowered -in, depending on the bottom surface of the trench. Side -boom tractors will be used to simultaneously lift the pipe, position it over the ditch, and lower it in, place. Inspection will be conducted to verify that minimum cover is provided; the trench bottom is free of rocks, debris, etc.; external pipe coating is not damaged; and the pipe is properly fitted and installed into the ditch. Specialized padding machines will be used to sift soil fines from the excavated subsoil to provide rock -free pipeline padding and bedding. In rocky areas, padding material or a rock shield will be used to protect the pipe. Topsoil will not be used to pad the pipe. 4 2.3.2.5 Backfilling Backfilling will begin after a section of the pipe has been successfully placed in the ditch and final inspection has been completed. Backfilling will be conducted using a bulldozer, rotary auger backfill, padding machine or other suitable equipment -Backfilling the trench will use the subsoil previously excavated from the trench. Backfill will be graded and compacted, where necessary, for ground stability, by being tamped or walked in with a wheeled or track vehicle. Compaction will be performed to the extent that there are no .voids in_the trench. Any excavated. materials or materials unfit for backfill will be utilized or properly disposed of in conformance with applicable laws or regulations. Topsoil will not be used to backfill the trench. 2.3.2.6 Cleanup Cleanup activities will be initiated as soon as practicable after backfilling activities have been completed. All construction -related debris will be removed and disposed of at an approved disposal area. The ROW will be graded as near as possible to the pre -construction contours and natural runoff and drainage patterns will be restored. The ROW will be left in a roughened condition to provide micro -climates for plant development and collection of stormwater runoff. 2.3.3 Road Crossings/Installation The proposed pipeline route will not cross any county roads. 2.3.4 Drainage and Stream Crossings/Installation -- Cordilleran Compliance Services, Inc. (Cordilleran)•recently inventoried the East Dry Hollow Loop Phase 2 pipeline route crossing West Divide Creek and several intermittent drainages. The route extends across private land, and all United States Army Corps of Engineers (USACoE) jurisdictional water crossings of West Divide Creek are on private property. The creek crossing will be constructed by directional boring. Other drainage crossings wilt be constructed in accordance with USACoE regulations and best management practices. 2.4 REQUIRED PERMITS The following table lists permits required to construct the project: Required Permits—Pipelines Agency Permit or Consultation Applicability Federal Department of Defense Sacramento District Corps of Engineers - Grand Junc ion, Colorado Nationwide General Permit (NWP) 12 Construction within waters of the United States. State of Colorado Department of Public Health and Environment Water Quality Control Division 5 A enc Local -Colorado Garfield County Required Permits—Pipelines Permit or Consultation Construction Stormwater Permit Development Plan A copy of the NWP 12 Pre -Construction Notifications is provided in Attachment 2. EnCana has an existing Colorado Department of Public Health and Environment (CDPHE) Stormwater Permit and a copy is provided in Attachment 3. 2.5 OWNERSHIP AND FEE -LANDOWNER DOCUMENTATION 2.5.1 Ownership and Notifications The pipeline crosses five landowners and EnCana. All landowners within 200 feet of the project are affected surface owners. Please note that EnCana did not determine if the surface owners are party to the mineral lease and is instead providing copies of Right -of -Way. Easements for each surface landowner. Notifications will be sent to landowners via return -receipt and notice signs will be posted on the portions of the route crossing or adjacent to a public road. Landowner information is provided in Attachment 4. Reference Attachment 1 for the Garfield County Assessors Map depicting affected surface owners. As ,licabili Discharge of stormwater from a construction site. Installation of pipelines 2.5.2 Buildings There are 2 buildings located within 350 feet of the proposed project. Reference the Garfield County Assessors Map provided in Attachment 1. 2.6 PROJECT PARTICIPANTS Project participants and contact information are provided in the following table. Name Dewey Neely Title Pro'ect Partici ants Address Construction Coordinator (general contact in case of an emer•eor this EnCana Telephone/Cell 2717 CR 215, Suite 100, Parachute, CO 81635 (970) 285-2632 office (970) 250-9462 cell 6 2.7 SENSITIVE AREA SURVEYS 2.7.1 Biological WestWater Engineering, Inc. (WestWater) has completed the biological assessments of the East Dry Hollow Loop Phase 2 pipeline. The project route was surveyed for sensitive resources during the summer of 2008. The Sensitive Resource Reports for the project are provided in Attachment 5. Biological surveys were completed on August 18, 2008. The following wildlife impact assessments were identified: • possible loss of winter range to a small number of mule deer and elk that utilize the site. • possible loss of foraging and nesting vegetation/habitat to a small number of bird species. Also completed were surveys for federally listed threatened and endangered plants and BLIVl sensitive species plants along the project right-of-way. No sensitive plant species were observed along the right-of-way. 2.7.2 Wetlands No wetlands were identified during construction of EnCana's existing pipelines along the projected corridor. The pipeline project will be constructed within an existing disturbance and will not impact any known wetlands. project) Renata Busch Permit and ROW Coordinator 2717 CR 215, Suite 100, Parachute, CO 81635 (970) 285-2825 office (970) 319-8890 cell Bob Anderson Pipeline Inspector 2717 CR 215, Suite 100, Parachute, CO 81635 (970) 285-2622 office (303) 880-0038 cell Agency Contacts Army Corps of Engineers — Colorado/Gunnison Basin Regulatory Office Susan Nall Environmental Engineer 402 Rood Ave, Room 142 Grand Jct., CO 81501 (970) 243-1199 office CDPHE WCQD - Stormwater Nathan Moore Environmental Engineer 4300 Cherry Creek South, Denver, CO 80202 (303) 692-3555 office Garfield County Planning Department Fred Jarman Director 108 8th Street, Suite 401 Glenwood Springs, CO 81601 (9-70) 945-8212 office 2.7 SENSITIVE AREA SURVEYS 2.7.1 Biological WestWater Engineering, Inc. (WestWater) has completed the biological assessments of the East Dry Hollow Loop Phase 2 pipeline. The project route was surveyed for sensitive resources during the summer of 2008. The Sensitive Resource Reports for the project are provided in Attachment 5. Biological surveys were completed on August 18, 2008. The following wildlife impact assessments were identified: • possible loss of winter range to a small number of mule deer and elk that utilize the site. • possible loss of foraging and nesting vegetation/habitat to a small number of bird species. Also completed were surveys for federally listed threatened and endangered plants and BLIVl sensitive species plants along the project right-of-way. No sensitive plant species were observed along the right-of-way. 2.7.2 Wetlands No wetlands were identified during construction of EnCana's existing pipelines along the projected corridor. The pipeline project will be constructed within an existing disturbance and will not impact any known wetlands. 2.8 REVEGETATION Based on the soil types, terrain, and the presence of noxious weeds in the pipeline ROW, successful reclamation is most likely if a seed mix of grasses is used. Two seed mixes are recommended for the East Dry Hollow Loop Phase 2 project based on the soil type and available moisture; one for the drier pinon/juniper/sagebrush sites and one for the meadow/riparian sites with more moisture. Recommended Seed Mix For Arid Sites - East Dry Hollow Loop Phase 2 Pipeline (Pinon-Juniper Woodland and/or Mountain/Wyoming Big Sagebrush Shrubland, BLM — GSFO) Application Rate lbs PLS/acre Common Name I Variety Plant the Following (10%Total). Indian Ricegrass Nezpar, Paloma, Rimrock I.9 And Both of the Following (15 /0 each, 30% Total) Galleta I Viva Bluebunch Wheatgrass Secar Thickspike Wheatgrass Slender wheatgrass Muttongrass Sandberg Bluegrass Bottlebrush Squirreltail Total .2.5 . 2.8 And One of the Following (20% Total) Critana 3.4. San Luis 3.3 And Two of the Following (40% Total) 0.6 0,6 2.7 17.8 lbs PLS/acre Recommended Seed Mix For Meadow and Riparian Si es — East Dry Hollow Loop Phase 2 Pipeline (Spruce -Fur Forest, Including Mountain Meadows, BLM — GSFO) Application Rate lbs PLS/aere Common Name I Variety Mountain Brome Slender Wheatgrass Letterman Needlegrass Blue Wildrye Thickspike Wheatgrass Idaho Fescue Wheeler Bluegrass Total And Both of the Following (20 /o each, 40% Total) Garnet 5.8 San Luis 3.3 And One of the Following (20% each, 60% Total) Arlington Critana Joseph 3.5 4.8 3.4 1.2 0.6 22.6 lbs PLS/acre For best results and success, the recommended grass mixture reseeding should be done in late autumn. The reseeding rate should be doubled for broadcast application. Preferred seeding method is multiple seed bin rangeland drill with no soil preparation other than simple grading to 8 slope and imprinting and waterbars where applicable. Alternative seeding methods include but are not limited to: • harrow with just enough soil moisture to create a rough surface, broadcast seed and re- harrow, preferably at a 90 degree angle to the first harrow; • hydro -seeding (most economical in terms of seed cost); and • hand raking and broadcast followed by re -raking at a 90 degree angle to the first raking. These are not the only means of replanting the site. However, these methods have been observed to be effective in similar landscapes. EnCana will provide a Revegetation Security to Garfield County for the amount of $42,375 or $2,500 per acre of disturbance for the East Dry Hollow Loop Phase 2 Pipeline. A copy of the Permit Bond is provided in Attachment 8. The original, signed instrument will be forwarded to Garfield County upon receipt. 2.9 WEED MANAGEMENT PLAN Field inspections of the proposed gathering system links and site were conducted by WestWater biologists on February 20 and August 18, 2008. Most weeds observed during both surveys were found within waterway drainages and previously disturbed areas such as the existing gas fine ROW. Noxious weeds observed included chicory, common burdock, houndstongue, jointed goatgrass, musk thistle and Russian knapweed. The Integrated Vegetation and Noxious Weed Management Plan are provided in Attachment 5. Recommended Treatment It is important to know whether the target is annual, biennial, or perennial to select strategies that effectively control and hopefully eliminate the target. Herbicides. should not necessarily always be the first treatment of choice when other methods can be effectively employed. Herbicide treatment with two or more herbicide modes of action in fall (after approximately August 15 when natural precipitation is present) is the best method to control difficult species such as Russian knapweed. The resilience and ability to quickly develop immunity to herbicides, particularly those used incorrectly, makes it imperative to use the proper chemicals at the correct time in the specified concentration. Most misuse seems centered around excessive use either in frequency or concentration. This results in mostly top kill and an immune phenotype. Best Management Practices The following practices should be adopted for any construction project to reduce the costs of noxious weed control. The practices include: • top soil, where present, should be segregated from deeper soils and replaced as top soil on the final grade, a process known as live topsoil handling; • wetland vegetation if encountered, should be live handled like sod, temporarily watered if necessary, and placed over excavated sub -soil relative to the position from which the wetland sod was removed; • cut-off collars should be placed on all wetland and stream crossings to prevent back washing or draining of important aquatic resources; 0 • in all cases temporary disturbance should be kept to an absolute minimum; • equipment and materials handling should be done on established sites such as the northern point of origin to reduce area and extent of soil compaction; • disturbances should be immediately replanted with the recommended mix in the re -vegetation section; • topsoil stockpiles should be seeded with non-invasive sterile hybrid grasses if stored longer than one growing season; • prior to delivery to the site, equipment should be cleaned of soils remaining from previous construction sites which may be contaminated with noxious weeds; and • if working in sites with weed -seed contaminated soil, equipment should be cleaned of potentially seed -bearing soils and vegetative debris prior to moving to uncontaminated terrain. The Weed Management Plan is provided in Attachment 5. 2.10 EMERGENCY RESPONSE AND SPILL PREVENTION The EnCana Emergency Response Plan is provided in Attachment 6. In case of an emergency during this operation, the general contact person would be Dewey Neely and his contact numbers can be found in Section 2.6 under Project Participants. The following table contains contact information for Emergency Services: Emergency Contact List Service Name Address Phone Emergency 911 Air Evacuation St. Mary's Care Flight Grand Junction, CO (800)332-4923 Ambulance & Fire Parachute Fire Dept. Parachute, CO (970) 285-7711 Rifle Fire Dept. Rifle, CO (970) 625 - Hospitals Glenwood Springs Valley View Hospital 1906 Blake Avenue Glenwood Springs, CO (970) 945-6535 Grand Junction St. Mary's Hospital & Medical Center 2635 N. 7°i Street Grand Junction, CO (970) 244-2273 Rifle Grand River Hospital District 501 Airport Road Rifle, CO (970) 625-1510 Medical Clinics Battlement Mesa Battlement Mesa Clinic 73 Sipprelle, Suite K Parachute, CO (970) 285-7046 Rifle Grand River Medical Center 501 Airport Road Rifle, CO (970) 625-1510, Poison Control (800) 332-3073 Police Rifle Police Dept. 202.RailroadAve. Rifle, CO (970)625-8095 Sheriff Garfield County Sheriff 107 8ih Street Glenwood Springs, CO (970) 945:0453 State Patrol State of Colorado 202 Centennial Drive Glenwood Springs, CO (970) 945-6198 State Patrol (Dispatch) (970) 625-8095 EnCana would reimburse the appropriate emergency service provider for costs incurred in connection with emergency response for activities associated with this project. The Spill Plan serves as a guide to assist personnel in the proper response to an emergency incident and identifies emergency notification and state agencynames and phone numbers that shall be contacted in the event of a spill. The successful handling of any oil discharge depends on four different operations: 1) Containment, 2) Removal, 3.) Disposal,,,. and 4) Cleanup. whichare, summarized in the Spill Plan provided in Attachment 7. The Stormwater Management Plan provided in Attachment 3 also provides information with regards to spill prevention. 2.11 TRAFFIC IMPACT Divide Creek Road will be used to access the project. Construction traffic will consist of approximately 12 pickup trucks and 2 crew trucks including EnCana personnel, plus 2 haul trucks to get the equipment on location. Construction of the pipeline could result in estimated pickup traffic of approximately 15 commuter round trips per day. Impacts will be temporary and will cease when construction of the pipeline is complete. 2.12 STAGING AREAS/CONSTRUCTION YARDS There are no construction staging areas or yards associated with this project. 2.13 PIPE TESTS The pipe will be pressure tested in accordance with ANSI B31..8. The result of this pressure test is an established Maximum Allowable Operating Pressure (MAOP). 3.0 POST -CONSTRUCTION ACTIVITIES 3.1 MAINTENANCE AND OPERATION EnCana will maintain the right-of-way for the life of the project. Maintenance will include repairing soil erosion and reseeding as necessary. After completion of reclamation activities, above -ground pipeline markers will be installed over the center of the pipeline. The right-of-way will be considered satisfactorily reclaimed by the Garfield County Vegetation Management personnel when soil erosion has been stabilizedand a vegetative cover at least equal to that present prior to disturbance and a plant species composition at least as desirable as that present to the disturbance is established. Establishment of all the species in the seed mixture will be considered as meeting the composition/desirable species criteria: EnCana's gathering system is operated according to natural gas industry standards. Supervisors and field personnel will monitor and control the system by driving throughout the project area inspecting facilities on a periodic basis. Disposal of any liquid and. solid waste generated during maintenance and operation of the pipeline will be done at an approved facility in an environmentally sound and approved manner. 4.0 MITIGATION MEASURES The following protective measures have been adopted by EnCana to address specific resource values and environmental concerns associated with the project. 4.1 NOXIOUS WEEDS All construction equipment and vehicles will be clean and free of soil and weed seed prior to the start of construction. EnCana will monitor the right-of-way for noxious weed infestations and shall control noxious weeds as requested by fee -owner and Garfield County Vegetation Management personnel. The Weed Management Plan is provided in Attachment 5. The following measures identify how EnCana will control and reduce the spread of noxious weeds: • Ensure that equipment used on the project is clean and free of noxious weeds before arriving at the project. • Minimize soil disturbance to reduce areas of potential noxious weeds. Equipment and project vehicles will be confined to the flagged project right-of-way to minimize excess soil disturbance. • Salvage and segregate topsoil, then redistribute to reclaim the right-of-way. • Establish native grasses and forbs. The recommended seed mix in Section 2.8 of this plan identifies the appropriate seed mixes for reclamation of disturbed areas. • Eradicate weed introductions early through the uses of herbicides. Herbicides will only be applied by personnel that are licensed by the State of Colorado to use and apply herbicides. 4.2 EROSION AND STORMWATER Temporary and permanent erosion control measures will be implemented to control erosion and transport of sediment. Erosion and sediment controls will be used and maintained during all phases of construction, as necessary. Selection of appropriate erosion controls will be selected based on soil properties, steepness of the slope, and anticipated'surface flow or runoff During cleanup, the right-of-way will be graded as near as possible to the pre -construction contours and natural runoff and drainage patterns will be restored. Permanent waterbars will be constructed along all slopes as necessary. The Stormwater Management Plan included in Attachment 3 provides further mitigation measures to be implemented during construction and operation of the pipeline. 4.3 THREATENED, ENDANGERED, AND SENSITIVE SPECIES WestWater has completed the biological assessments of the East .Dry Hollow,Loop Phase 2 pipeline. The project route was surveyed for sensitive resources during the summer of 2008. The Sensitive Resource Reports for the project are provided in Attachment 5. No sensitive plant species were observed along the right-of-way. 12 4.4 CULTURAL RESOURCES A Class I Cultural Resource Inventory was conducted by Grand River Institute and it was determined that no sites have been recorded within 300 meters of the proposed pipeline. The report is provided in Attachment 5. 4.5 AIR QUALITY Dust shall be controlled by the use of water or an approved dust suppressant, as directed by Garfield County. 4.6 SOLID WASTE MANAGEMENT The construction right-of-way will be maintained in a sanitary condition at all times and waste materials on the project will be disposed of promptly at an appropriate waste disposal facility. Waste includes, but is not limited to, human waste, trash, garbage, ashes, weldingrods, etc. Portable toilets will be available on-site. Liquid and solid waste generated during construction of the project will be disposed of in an approved manner at an appropriate facility so as not to impact air, water, soil, vegetation, or wildlife. 4.7 HAZARDOUS MATERIALS MANAGEMENT " Construction, operation, and maintenance of the project will require the use of certain potentially hazardous materials such as fuels, explosives, and herbicides. By definition, hazardous materials (substances and wastes) have the potential to pose a significant threat to human health and the environment based upon quantity, concentration, or chemical composition. Generally, hazardous materials will be stored in contractor yards and not on the right-of-way. General site and materials management measures such as materials. delivery, storage, handling and spill prevention, as well as, vehicle cleaning, fueling, maintenance and tracking controls are identified in Section 3.2 of the Stormwater Management Plan provided in Attachment 3. FERGUSON LOUTHAN WILLIAMS CHIPPERFIELD WEST Y ESTATES SUBDIVISION DAHLIN DONELSON . CURRIE MINOR SUBDIVISION / EXEMPTION JLTON CIRCLE B LAND COMPANY HAZELBUSH ONELSON pr rc4r LAST DANCE LLC I LAST DANCE LLC ARBANE ARBANEY P3 'ARB PROTZ JUMPER GROUP LAST DANCE LLC ENCAN ALLMON ■ A10E ENCANA REW !— .' • J2E GUCCINI . MILLER LAND & CATTLE ■ •1 ■ . ■ • ■ SCHWARTZ • EUBANKS ENCANA WALTER 1ERGER RUST REW BLM GUCCINI SCOTT MILLER LAND & CATTLE tes JUNIPER GROUP M1E JUNIPER GROUP Proposed East Dry Hollow ` EICHER Phase 2 Pipeline TRUST ± 12,302 ft. HENDERSON & MOLLER BLM MCCRAY RANCH CO THOMPSON BLM STAUFER STAUFER STAUFER STAUFER, m MCCRAY RANCH CO •• LANGEGGE • • • 01 LANGEGGER TWIN CREEK RANCH • • • MORGAN MORGAN R 9 2 W T6S 1 T7S MILLER LAND & CATTLE BLM R' 9 1 W. EnCana Oil & Gas (USA) Inc. East Dry Hollow Phase 2 Pipeline Sections 1, 2, 3, 10 & 11, T7S, R92W, & Section 36, T6S, R92W, 6th P.M. Garfield County, Colorado 0■ SURVEYING 908 Main Street Evanston, Wyoming 82930 Phone No. (307) 789-4545 ATCK -LEGEND- • Proposed Pipeline DATE August 20, 2008 SCALE: 1" = 2000' PROJECT NO.: 07-04-115 Topo r,Drr SHEET 1 OF 1 PIPELINE RIGHT-OF-WAY DESCRIPTION A PIPELINE RIGHT-OF-WAY LOCATED IN THE SEI/4 SW1/4 OF SECTION 36, T6S, 892W, THE 51/2 & LOT 2 OF SECTION 1, THE 51/2 & LOT 1 OF SECTION 2, N1/2 NWI/4 SECTION 11, THE NE1/4 NE1/4 SECTION 10, AND THE 5E1/4 SE1/4 OF SECTION 3, T7S, R92W, 611-1 P.M., GARFIELD COUNTY, COLORADO, THE CENTERLINE OF SAID RICHT-OF-WAY BEING MORE PARTICULARLY DESCRIBED AS FOLLOWS: COMMENCING AT THE NORTH ONE-QUARTER CORNER OF 5410 SECTION 7 AND RUNNING THENCE N 89400'28" E, 358.13 FEET ALONG THE NORTH LINE THEREOF; THENCE S 0039'32" E, 1570.69 FEET TO THE POINT OF BEGINNING' (THE BASE BEARING FOR 81I5 SURVEY BEING N 8921'03" E, 2652.75 FEET BETWEEN FOUND MONUMENTS AT THE NORTHWEST CORNER AND THE NORTH ONE-QUARTER CORNER OF SATO SECTION 1); THENCE N 31'40'46" W, 194.61 FEET; THENCE N 32'46'45" W, 233.46 FEET; THENCE N 492342"11( 201.45 FEET; THENCE N 67'58'05" W, 16728 FEET; THENCE N 2445411" W, 304.01 FEET THENCE N 37'24'16" W, 647.96 FEET THENCE N 5210'52" E, 94.88 FEET TO A POINT LYING ON THE SOUTH LINE OF SAID LOT 2; THENCE CONTINUING N 52'10'52" E, 44.70 FEEL THENCE N 0522'05" E, 99.62 FEET; THENCE N 10'09'37" W, 27.81 FEET TO A POINT LYING ON THE SOUTH LINE OF 5410 SECTION 36, SAID POINT LYING 5 89'2E03" W, 558.67 FEET FROM THE SOUTH ONE-QUARTER CORNER THEREOF; THENCE CONTINUING N 10'09'37" W, 113.53 FEET; THENCE N 3742'00" W 28.62 FEET THENCE S 77'36'19" W, 746.42 FEET; THENCE S 71'45'40" W, 208.15 FEET THENCE S 5824'37" W, 81.88 FEET TO A POINT LYING ON THE NORTH LINE OF SAID SECTION 1, SAID POINT LYING N 8971'03" E, 1646.07 FEET FROM THE NORTHWEST CORNER THEREOF; THENCE CONTINUING S 58'24'37" W, 78.88 FEET' THENCE S 72'08'56" W, 122.20 FEET,; THENCE S 83'4711" W, 108.22 FEET; THENCE N 86'37'06" W, 120.59 FEET; THENCE N 75'03'40" W 154.88 FEET; THENCE 5 8910'33" W. 943.80 FEET THENCE S 89'45'50" W 741.18 FEET TO A POINT LYING ON THE EAST LINE OF SAID SECTION 2, SAID POINT LYING S 00'04'79" Al, 38.97 FEET FROM THE NORTHEAST CORNER THEREOF; THENCE CONTINUING S 89'45'50" W 506.52 FEET,; THENCE S 8950'43" W, 896.40 FEET; THENCE 5 0019'18" W, 161.74 FEET TO A POINT LYING ON THE NORTH LINE OF THE 5E7/4 OF SAID SECTION Z SAID POINT LYING N 89'44'30" E, 1238.29 FEET FROM THE CENTER ONE-QUARTER CORNER OF SAID SECTION; THENCE 5 00'50'27" E, 238.51 FEET; THENCE S 0016'02" E, 1366.53 FEET THENCE 5 182826" W, 45.57 FEET; THENCE 5 5615'46" W, 41.41 FEET; THENCE 5 8912'58" W, 219.14 FEET; THENCE N 8922'42" W, 201.64 FEET; THENCE S 79'46'05" W, 396.41 FEET THENCE 5 12'46'54" W, 99.32 FEET; THENCE 5 1749'07" W, 169.27 FEET; THENCE 5 7821'12" W, 155.71 FEET; THENCE 5 80'30'38" W, 704.86 FEET;; THENCE 5 8523'27" W, 467.62 FEET; THENCE 5 802778" W, 65.16 FEET,: THENCE 5 7758'49" W, 100.92 FEET; THENCE 5 362310" W, 50.93 FEET THENCE 5 64'03'46" W, 89.23 FEET,' THENCE S 50'0125" W, 77.90 FEET' THENCE S 392916" W, 47.18 FEET; THENCE 5 21'51'30" W, 121.29 FEET,' THENCE 5 31'39'02" W, 47.75 FEET,' THENCE S 4656'13" W, 75.82 FEET,' THENCE 5 522710" W, 77.51 FEET; THENCE 5 55'40'48" W, 180.85 FEET TO A POINT LYING ON THE NORTH LINE OF SAID SECTION 11, SAID POINT LYING N 89'43'08" E, 1509.78 FEET FROM THE NORTHWEST CORNER THEREOF; THENCE S 5627'20" W, 264.36 FEET; THENCE N 89'32'04" W, 373.76 FEET, MORE OR LESS, TO A POINT LYING ON THE BOUNDARY LINE COMMON TO THE ENCANA AND EUBANKS PROPERTIES; THENCE CONTINUING N 8922'04" W, 279.98 FEET; THENCE 5 89'08'06" W. 615.90 FEET' THENCE N 66'4026" It 87.79 FEET, MORE OR LESS, TO A POINT LYING ON THE WEST LINE OF SAID SECTION 10; THENCE CONTINUING N 66'40'36" W, 61.37 FEET; THENCE N 632326" W, 181.66 FEET TO A POINT LYING ON THE SOUTH LINE OF SAID SECTION 3, SAID POINT LYING 5 8917'15" W, 219.54 FEET FROM THE SOUTHEAST CORNER THEREOF; THENCE CONTINUING N 63'23'36" W, 10.59 FEET' THENCE N 55'5112" W, 136.65 FEET; THENCE N 6121'29" W, 80.96 FEET TO THE POINT OF ENDING SAID POINT LYING N 74'07'75" W, 429.52 FEET FROM THE SOUTHEAST CORNER OF SAID SECTION 3. BASIS OF BEARING The base bearing for this survey is N89'21'03"E, 2652.75 feet between found monuments of the Northwest Corner and the North One-Quorter Corner of Section 1, T7S, 892W, 6th P.M. NOTES: 1. Underground utilities were located using a pipe locator, no lines were exposed. Therefore, true locations may vary from those shown on these drawings. Extreme caution should be used when crossing or coming close to these existing lines during construction. There is no warranty, expressed or implied, by EnCana Oil & Gos (USA) Inc. or Wosotch Surveying as to the completeness or exact locotion of existing utilities. RIGHT-OF-WAY LENGTHS PROPERTY OWNER SECTION FEET TOTAL LANGEGGER Sec. 1, T7S R92W 1843.65 1843.65 JUNIPER GROUP LLC Sec. 1, T7S R92W 1841.90 3406.56 Sec. 2, T7S R92W 1564.66 MILLER LAND & CATTLE Sec. 36, T6S R92W 578.60 578.60 SCHWARTZ Sec. 2, T7S R92W 4440.53 4440.53 EUBANKS Sec. 11, T7S R92W 578.12 578.12 ENCANA Sec. 11, T7S R92W 983.68 1454.89 Sec. 10, T7S R92W 243.03 Sec. 3, T7S R92W 228.18 20' Total 12302.35 RIGHT-OF-WAY LIMITS BOX ANGLE POINT Reference Points FROM TO Additional Temporary Work Space Left Permanent Right -of -Way Left Permanent Right -of -Way Right Additional Temporary Work Space Right STA 0+00 STA 18+43.7 0' 15' 15' 25' STA 18+43.7 STA 21+57.9 0 15' 15' 30' STA 21+57.9 STA 56+67.1 30' 15' 15' 0 574 56+67.1 574 102+69.3 0 15' 15' 30' STA 102+69.3 STA 105+33.7 0 20' 10' 35' STA 105+33.7 574 108+47.5 0 25' 5' 35' STA 108+47.5 STA 123+02.4 0 15' 15' 35' 9.6' RIGHT IFGFND SECTION CORNER LOCATED P.I. POINT OF INTERSECTION P.O.B. P.O.E. P.O.S.L P.O.P.1 POINT OF BEGINNING POINT OF ENDING POINT ON SECTION LINE POINT ON PROPERTY LINE ft �ZATCH SURVEYING CERTIFICATE OF SURVEYOR I, TED TAGGART OF FRUITA, COLORADO HEREBY CERTIFY THAT THIS MAP WAS MADE FROM NOTES TAKEN DURING AN ACTUAL SURVEY MADE BY ME OR UNDER MY DIRECTION FOR ENCANA OIL & GAS (USA) INC. AND THAT THE RESULTS OF WHICH ARE CORRECTLY SHOWN HEREON. 906 Main Street Evanston, Wyoming 82930 Phone No. (307) 789-4545 PIPE BENDS ANGLE POINT STATION PIPE BEND BEGIN PIPE P.I. 0+00 Latest Revision 1+94.6 1.1LEFT P.I. 4+28.1 16.8' LEFT P.I. 6+29.5 18.4' LEFT P.I. 7+96.8 43.1' RIGHT P.I. 11+00.8 12.5' LEFT P.I. 17+48.8 89.6' RIGHT P.I. 18+88.4 46.8' LEFT P.I. 19+88.0 15.5' LEFT P.I. 21+29.3 27.5' LEFT P.I. 21+57.9 64.7' LEFT P.I. 23+04.4 5.8' LEFT P.I. 25+12.5 13.4' LEFT P.I. 26+73.3 13.7' RIGHT P.I. 27+95.5 11.6' RIGHT P.I. 29+03.7 9.6' RIGHT P.I. 30+24.3 11.6' RIGHT P.I. 31+79.2 15.8' LEFT P.I. 41+23.0 0.6' RIGHT P.I. 47+70.7 0.1' RIGHT P.I. 56+67.1 89.5' LEFT P.I. 58+28.8 1.2' LEFT P.I. 60+67,3 0.6' RIGHT P.I. 74+33.9 18.7' RIGHT P.I. 74+79.4 37.8' RIGHT P.I. 75+20.8 33.0' RIGHT P.I. 77+40.0 1.2' RIGHT P.I. 79+41.6 10.7' LEFT P.I. 83+38.0 67.0' LEFT P.I. 84+37.3 5.0' LEFT P.I. 86+06.6 60.7' RIGHT P.I. 87+62.3 2.0' RIGHT P.I. 88+67.2 4.9' RIGHT P.I. 93+34.8 4.9 LEFT P.I. 94+00.0 2.5' LEFT P.I. 95+00.9 41.6' LEFT P.I. 95+51.8 27.7' RIGHT P.I. 96+41.0 14.0' LEFT P.I. 97+18.9 10.5' LEFT P.I. 97+66.1 17.6' LEFT P.I. 98+87.4 9.8' RIGHT P.I. 99+35.2 15.3' RIGHT P.I. 100+11.0 5.4' RIGHT P.I. 100+88.5 3.3' RIGHT P.I. 102+69.3 0.8' RIGHT P.I. 105+33.7 34.0' RIGHT P.I. 111+27.4 1.3' LEFT P.I. 117+43.3 24.2' RIGHT P.I. 118+92.5 3.3' RIGHT P.I. 120+84.8 7.5' RIGHT P.I. 122+21.4 5.5' LEFT END PIPE 123+02.4 Map Showing EnCana Oil & Gas (USA) Inc. East Dry Hollow Loop Phase 2 Plan & Profile Located in Section 36 T6S, R92W, & Sections 1, 2, 3, 10, & 11 T7S, R92W, 6th P.M. GARFIELD COUNTY, COLORADO Right -of -Way Scale: As Shown SHEET " 1 OF 4 2 Project Na 07-04-115 Date Surveyed: 3/21/08 ` prawn; 8/22/08 Latest Revision NORTHEAST CORNER SEC. 2 ORIGINAL STONE SWI/4 SECTION 36, T6S R92W Owner: MILLER LAND & CATTLE Existing EnCono 72" Pipeline N8921'03"E. 2652.75' Section 36 a:P,.N UN + o - • _ a a (500'04'19'"W, 198.88 o -1,. LLC (LOT2) `'' v a ° N_0) n _+ J / LA r_+ X X 0 U) V+ v ▪ + c0 N + +,O (M ,O �� EAST 1/4 r+ 0 N u o LO CD mU, W A CORNER SEC. 2 + 4. 0 2003 ALUM. CAP . '-Centerline of Pipeline C -W 1/16 / a CORNER SEC. 1 ,0 Right -of -Way 2003 ALUM. CAP D- LS 31143 0 "4 E1/2 SE1/4 SECTION 2, T7S R92W Owner: JUNIPER GROUP LLC PLAN VIEW 0, 0 0 O O W1/2 SWI/4 SECTION 1, T7S R92W Owner: JUNIPER GROUP LLC LINE TABLE LINE DIRECTION LENGTH L100 N31'40'46"W 194.61 L101 N32'46'45"W 233.46 L102 N49'33'42"W 201.45 L103 N67'58'05"W 167.28 L104 N24'54'11"W 304.01 L105 N3724'16"W 647.96 L106 N52'10'52"E 94.88 L107 N52'10'52"E 44.70 L108 NO5'22'05"E 99.62 L109 N10'09'37"W 27.81 1.710 N10'09137"W 713.53 1.171 N37'42.00"W 28.62 L112 577'36'19"W 146.42 L113 S71'45140"W 208.15 L114 55824'37"W 81.88 L115 55824'37"W 78.88 L116 S72'08'56"W 122.20 L117 583447111"W 108.22 L118 N86'37'06"W 120.59 L119 N75'03140"W 154.88 L120 S89'10"33"W 943.80 L121 589'45150"W 141.18 L122 S89'45'50"W 506.52 Sto: 21+74.5 Existing EnCana 12" PipelineNORTH 1/4 I. 21+57.9 CORNER SEC. 1 NORTHEAST u n 2007 ALUM. CAP CORNER SEC. 1 P.I. 21+29.3 PLS 17492 CALCULATED 5110 (558.67) os.L I N89'00'28"E, 2590.59' 8 19+88.0 a: 19+43.1 (Edge of Creek) :19+818.9 (Edge of Creek) > 1 8 8 4 (a O.P.L. 18+43.7 1...17+48.8 E1/2 SW1/4 SECTION 1, T7S R92W Owner: LANGEGGER to: 15+75.8 (Fenceline) 05 Existing EnCono 12" Pipeline I, 11+00.8 (358.13') CENTER 1/4 CORNER SEC. 1 CALCULATED I. i+96.8 :10 n 6+29.5 Existing Fenceline (typ) Ot U 0 w ▪ P.O.B. OF PIPELINE RIGHT-OF-WAY 4TH STATION ONIE 0 0+00 A7 E ORION TIE-IN AREA (INSTALL LAUNCHER/RECEIVER) Part of the W1/2 SE1/4 SECTION 1, T7S R92W Owner: LANGEGGER 107 P. 4+28.1 1 --Existing Orion Pipeline !lol I P.I. 1+94.6 ‘‘I 01' WELL PAD 3 SIro(SM321 PROFILE VIEW N Tn 8 41 0 LLI 22 • • a • • • 2.1 Tn i Sta. 0+00 Point of Beginning DATUM ELEV = 5855.00' to m h n m h m h 6 b m h n T h 0 m '0 l0 0 a '0 b 0 h 0 a h M Q h 0 co 0, h b T h 0 h n m h h 0 h 0 V N m h 0 CO '0cn m co 0 b oo N m Q h N b O, M b V b cci in b N b '0 b b 42+00 40+00 38+00 36+00 34+00 32+00 30+00 28+00 26+00 24+00 22+00 20+00 18+00 16+00 14+00 12+00 10+00 8+00 6+00 4+00 2+00 0+00 HORIZ. SCALE: 1"= 200' VERT. SCALE: 1"= 100' N N0 a CO en co 000 o, 0 O O =U a 0tt coLu EnCana Oil & Gas (USA) Inc. Sheet2 of 4 N PLAN VIEW N89'00'09"E, 2644.84' Section 25 NORTHWEST CORNER SEC. 2 2001 ALUM. CAP L5 31143 PROFILE VIEW T Section 2 LINE TABLE LINE DIRECTION LENGTH L123 S89'50'43"W 896.40 161.74 238.51 L124 500'19'18"W L125 S00'50'27"E L126 S00'16'02"E 1366.53 L127 S1878'26"W 45.57 L128 556'15'46"W 41.41 L129 589'12'58"W 219.14 L130 N89'32'42"W 201.64 L131 579'46'05"W 396.41 L132 S12'46'54"W 99.32 E1/2 SW1/4 SECTION 2, T7S R92W Owner: SCHWARTZ x Sta: 56+13.9 (Fenceline) Sto: 56+52.1(Existing EnCana 12" Pipeline) NORTH 1/4 — P.I. 56+67.1 CORNER SEC. [ - L124 STONE P.I./P.O.P.L. 58+28.8 Sta: 58+29.3 (Fenceline (N89'44'30"E, 1238.29') CENTER 1/4 CORNER SEC. 2 \\ 2006 ALUM. CAP 1 PLS 36572 Ste: 58+42.3 (Edge of Existing Sto: 58+81.4 (Edge of Existing Rood S89'43'59"W, 2639.26' x 6123 .01 Owner: JUNIPER GROUP LLC (LOT 1) 4 - co 6125 L Sta: 60+60.8 (Existing EnCona Pipeline)1 \\ P.I. 60+67.3 Centerline of Pipeline —\ Right -of -Way W1/2 SE1/4 SECTION 2, T7S R92W Owner: SCHWARTZ P.I. 83+38.0 6152 I P.I. 84+37.3 P.I P.I. 79+41.6 I 15' P.I P.I P.I 77+40. 74+33.9 74+79.4 75+20.8 A 6126 6130 n2 to w to 6 Existing EnCano 12" Pipeline E1/2 SE1/4 SECTION 2, T7S R92W Owner: JUNIPER GROUP LLC foictq DATUM ELEV = 5855.00' 0 N b b b 0 b 0 b b b b b h h b b ci b N v b N M b M N b 6 b b O b Q m 0 A 0 b 0 00 01 N b 0 b b O b b 0 to N 0 b 0) co (0 h q m b 0 to O 0 b M N T 0 b 84+00 82+00 80+00 78+00 76+00 74+00 72+00 70+00 68+00 66+00 64+00 62+00 60+00 58+00 56+00 HORIZ. SCALE' 1"= 200' VERT. SCALE' 1"= 100' 54+00 52+00 50+00 48+00 46+00 44+00 42+00 4 1 SNOISM3N EnCana Oil & Gas (USA) Inc. Sheet3 of 4 0 Part of the SEI/4 SECTION 3, T7S R92W Owner: ARBANEY ETAL Part of the SE1/4 8E1/4 SECTION 3, T7S R92W Owner: ENCANA P.O.E. OF PPELINE RIGHT-OF-WAY STATION 123+024 (INSTALL RECEIVER) CORNER TIE NOTE: ME POINT OF ENDING BEARS N 74'0715" W, 429.52 FEET FROM THE SOUTHEAST CORNER OF SECTION 3, 175, R92W L157 P ,1.15122+21.4 Sato: 1_21+31.7 usencellne ;3.34' RBANEY P P m LJ N0029'49"W, 2629.76 1D V SOUTHWEST CORNER SECTION 2 1975 BRASS CAP GARFIELD COUNTY SURVEYOR (WC. 33' N. OF ACTUAL CORNER) LINE TABLE LINE DIRECTION LENGTH L133 S17491014 169.27 L134 578.31"12"W 155.71 L135 S80'30'384 104.86 L136 S85'23 274 467.62 L137 S80'27'184 65.16 L138 S77'58'494 100.92 L139 S36'23'1V 50.93 L140 S64'03'464 89.23 L141 S50'01.254 77.90 L142 S39291164 47.18 L143 S21'51'304 121.29 L144 S31-39'024 47.75 L145 S46 *5611,3N 75.82 L146 S52'21'104 77.51 L147 S55'401484 180.85 L148 S56'27'204 264.36 L149 N89'32'044 313.76 L150 N89'32'044 279.98 L151 589'08'06"W 615.90 L152 N66'40'364 87.79 L153 N66'40'36"W 61.37 L154 N63'23'364 181.66 L 155 N63'23'364 10.59 L156 N55'51'124 136.65 L157 N6121'294 80.96 Section 2 1 E1/2 SW1/4 SECTION 2, T7S R92W Owner: SCHWARTZ P.I. 95+00.9 5139 P.I. 95+51(849 Sta: 95+87.3 (Ditch P.I. 96+41.0 97+��29 1al P.I. P.I. 97+66.1 / 5143 P.I. 98+87.4 P.I. 99+35.2 P.I. 100+11`04 j L'46 P.I. 100+88.5 5147 / Sta: 102+67.9 (Fenceline) m N 56 co m 0 O M m 0 + + M • 0,m 0) N. .'3= o '2 13 a P.I. 83+38.0 L13 P.I. 84+37.3 P.I. 86+06.6 P.I. 87+62.3 P.I. 88+67.2 513 L136 Existing EnCana 12" Pipeline 3' SOUTH 1/4 CORNER SEC. 2 CALCULATED L1 mom 219.54' in -in or 4,N X a0 CO a,_ Ut go) 01 m Il l� PLAN VIEW PART OF THE NE1/4 SECTION 10, T7S R92W Owner: MOON N Part of the NE1/4 NE1/4 SECTION 10, T7S R92W Owner: ENCANA N co (3 5) O 7 5, 0 33 25ction 7/ (1509.78') 52 au1p9Mod 5w,six3 d P../P.O.S.L. 102+69 L151 - 5150 5149 - Cn _ X -:ri X-- ”) ID - 000 - dao y. +++ N N+/O AWN V "N co IP W. A p + m L44,. COA N SINN n An � o m I/ r a3 Part of the NW1/4 SECTION 11, T7S R92W Owner: ENCANA 1 QL pooh 5ugsix3 Jo 0 (11 W v N89'43'08"E, 2630.88' Centerline of Pipeline Right -of -Way Part of the NW1/4 SECTION 11, T7S R92W Owner: EUBANKS a SNo5N3a PROFILE VIEW --- 0 ccp cdW to 41 Sta. 95+00 (Existing Pipeline) Sta. 95+87 (Ditch) 0 O 0 n N 0 n N b O 0 b m 0 N co 0 0 V 0 01 O to O O 0 O O 0 h O 0 O aci 0 to 0 0 0 O O 0 h O 0 0 O b e 0 N 0 01 0 0 b O b n 0 N tS 0 N 0 0 '0 m 0 O 0 122+00 120+00 118+00 716+00 114+00 172+00 110+00 108+00 106+00 104+00 102+00 100+00 98+00 HORIZ. SCALE: 1"= 200' VERT. SCALE' 1 = 100' 96+00 94+00 92+00 90+00 88+00 86+00 84+00 EnCana Oil & Gas (USA) Inc. Sheet4 of 4 CID THAN BELL WEST CURRIE MINOR SUB, XEMPTION DONELSON AH LAST DANCE LLC OKAGAWA LAST DANCE LLC CHEROKE006 MOUNTAIN STATES LLC @INSKI �� ALLMON e lot LrirpS'� 530 DONELSON LAST DANCE LLC Q DAHLIN PROTZ GU cu�6 • Rol-.flyarrati. run. GUCCINI SCOTT CIRCLE B LAND COMPANY J2EWell Pad Albany Etel Property Line wxnh 200' of Reposed Right -Of -Way BiiAHng =NCANA AWE Wel /Pad 217 H L HILL ASPEN RES• RCE KNIGHT KNIGHT MOON ENCANA All0F1 T1. t ELE..zjell _ 1 r CHWART 0011 MILLER LAND & CATTLE BtaTngs 1 493 36 MILLER LAND & CATTLL Proposed East Dry Hollow Phase 2 Pipeline MWEWelIPad 02 Well Pad GRIFFIN JUNIPER GROUP EICHER TRUST JUNIPER GROUP ENCANA UERGER TRUST REW R STAUFER HENDERSON & MOLLER Proposed East Dry Hollow Loop Phase 2 +/- 12302 Feet Within Garfield County Proposed East Dry Hollow Loop Phase 2 350' Offset AUFER TAUFER 1 L N EGGE DM* hark O1EWel Pad LANGEGGER TWIN CREEK RANCH 0 12 rme[ P. Langeg 9uh-Div. Ezemp13on Lel MORGAN 268 I ro b o ra > alai 0 eD ;at CD rt., 95: CIA; 110 `a 10 Bc1} `o 267 n? MORGAN T. em 190 to h 8Y DATE PREPARED FOR: EnCana Oil & Gas (USA) Inc. 0 1000 2000 (SCALE 14 FEET) REFERENCES CARF!£LD COUNTY PARCEL MAPS PREPARED Sr ECU SURVLNfNO POT P. alms PM»lb. pc')h'e? c'YN 82930 I) i8eI503 DATE AOpuet 20.2009 SCALE: 1.= 2000' Proposed East Dry Hollow Loop Phase 2 Sections 36, T6S, R92W & Sections 1, 2, 3, 10 & 11, T7S, R92W, 6th P.M. Garfield County Colorado SHEET 1OF1 PROJECTNO.: 07-04-115 DWO. NAME: Exhibit C0RDI LLERAN June 16, 2008 Ms. Sue Nall U.S. Army Corps of Engineers 402 Rood Avenue, Room 142 Grand Junction, CO 81501-2563 82621 'A Road Grand Junction, CO 81505 T: 970.263.7800 F: 970.263.7456 Re: EnCana Oil and Gas (USA), Inc., East Dry Hollow Phase 2 Pipeline Dear Ms. Nall, Cordilleran Compliance Services, Inc. (Cordilleran) on behalf of EnCana Oil and Gas (USA), Inc. (EnCana), recently inventoried a pipeline route crossing West Divide Creek and several intermittent drainages. The route extends across private land, and the United States Army Corps of Engineers (USACoE) jurisdictional water crossing of West Divide Creek is on property owned by Miller Land and Cattle. This informational packet is being retained to comply with the Army Corps of Engineers Nationwide 404 permit requirements. Permitting for the crossings is being conducted under Nationwide 12 standards with optional courtesy notification of the USACoE. The work should be done in accordance with Colorado Regional Conditions. The West Divide Creek crossing, 7S -92W-1-2, will be constructed by directional boring. EnCana also intends to construct the other drainage crossings noted in the attached spreadsheet in accordance with USACoE regulations and best management practices. This includes an additional intermittent drainage crossing located on the Eubanks family's property that was inaccessible during the time of the survey, but was identified on the topographical map. Attachments with this letter include: a location map, data spreadsheet, and photographic log. Please do not hesitate to contact me at the above referenced phone number or at mikebrygger@cordcomp.com if you have any questions or concerns. Thank you for your attention to this matter. Sincerely, Cordilleran Compliance Services, Inc. Michael 13rygger Senior Environmental Scientist Cordilleran Compliance Services, Inc. Grand Junction, CO • Denver, CO • Casper, WY • Laramie, WY• Lander, WY Environmental Consulting Engineers and Scientists CORDILLERAN Enclosure cc: Brenda Linster, EnCana Oil and Gas (USA), Inc. Reneta Busch, EnCana Oil and Gas (USA), Inc. File: E08081 826 21 %a Road Grand Junction, CO 81505 T: 970.263.7800 F: 970.263.7456 Cordilleran Compliance Services, Inc. Grand Junction, CO • Denver, CO • Casper, WY • Laramie, WY• Lander, WY Environmental Consulting Engineers and Scientists APPLICATION FOR DEPARTMENT OF THE ARMY PERMIT (33 CFR 325) OMB APPROVAL NO. 0710-003 Public reporting burden for thls collection of Information is estimated to average 5 hours per response, Including the time for reviewing instructions, Searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of inforrnotion, including suggestions for reducing this burden, to Department of Defense, Washington Headquarters Service Directorate of information Operations and Reports, 1215 Jefferson Davis Highway, Suite 1204, Arlington VA 22202-4302; and to tho Office of Management end Budget, Paperwork Reduction Project (0710.003), Washington, DC 20503. Please DO NOT RETURN your form to either or those addresses. Completed applications must be submitted to the District Engineer having Jurisdiction over the location of the proposed activity. PRIVACY ACT STATEMENT Authority: 33 USC 401, Section 10; 1413, Section 404. Principal Purpose: Those laws require permits authorizing activities In, or affecting, navigable waters of the United States; the discharge of dredged or fill material Into waters of the United States, and the transportation of dredged material for the purpose of dumping it into ocean waters, Routine uses: Information provided on this form will he used In evaluating the application for a permit. Disclosure: Disclosure of requested Information is voluntary. If information is not provided, however, the permit application cannot bo processed nor can e permit bo issued. One set of original drawings or good reproducible copies which show the location and character of the proposed activity must be attached to this application (see sample drawings and Instructions) and be submitted to the District Engineer having Jurisdiction over the proposed activity. An appticatlon that is not completed In full.will bo returned, ITEMS 1 THRU 4 TO BE FILLED BY THE CORPS 1. APPLICATION NO, 2. FIELD OFFICE CODE 3. DATE RECEIVED 4, DATE APPLICATION COMPLETED (ITEMS BELOW TO BE FILLED BY APPLICANT) 5. APPLICANT'S NAME Brenda Linster, EnCana Oil and Gas (USA), Inc. 8. AUTHORIZED AGENT'S NAME & TITLE (an agent is not required) Michael Brygger, Cordilferan Compliance Service 6. APPLICANT'S ADDRESS 2717 County Road 215 Parachute, CO 81635 9. AGENT'S ADDRESS 826 21 1/2 Road Grand Junction, CO 81505 7. APPLICANT'S PHONE NUMBERS WITH AREA CODE a. Residence 303:88876978 9 )O Sic ' 1 WO b. Business 720,87-6.5985 1 L -O X-1 LP -7)(:1& 10. AGENT'S PHONE NUMBERS WITH AREA CODE a. Residence 970.778.2867 b. Business 970.263.7800 11. STATEMENT OF AUTHORIZATION I hereby authorize a\ plication and to urns fri APPti Michael Brygger to act In my behalf as my agent In the processing of this quest, supplemental information in support of this permit application. 1 ANT'S SIGNATURE DATE NAME, LOCATION, AND DESCRIPTION OF PROJECT OR A 12. PROJECT NAME OR TITLE (see Instructions) East Dry Hollow Phase 2 Pipeline 13, NAME OF WATERBODY, IF KNOWN (if applicable) West Divide Ck, Dry Hollow Ck, Multa Trina Ditch 14. PROJECT STREET ADDRESS (If applicable) NiA 15, LOCATION OF PROJECT Garfield Co COUNTY STATE 16. OTHER LOCATION DESCRIPTIONS, IF KNOWN (see Instructions) see attached Information on Excel spreadsheet. 17, DIRECTIONS TO THE SITE The sites are located south of Silt, Colorado. See Figure 1. ENG FORM 4345 — ONLINE CESPK-CO-R 18. NATURE OF ACTIVITY (Description of project, include all features) Pipelines will be constructed to access EnCana natural gas facilities. Burled pipelines will be Installed where the routes cross West Divide Creek, and across intermittent Dry Hollow Creek, Multa-Trina Ditch and other un -named drainages and irrigation ditches. The crossings will allow water passage at the locations detailed In the attached Excel Spreadsheet, and Maps. Construction materials consist of native fill and gravel surface as described. 19. PROJECT PURPOSE (Describe the reason or purpose or the project, see Instructions) Pipelines will be constructed to provide access to EnCane natural gas production wells. USE BLOCKS 20-22 IF DREDGED AND/OR FILL MATERIAL IS TO BE DISCHARGED 20. REASON(S) FOR DISCHARGE Burled pipelines will be installed to allow crossing of the drainages. 21. TYPE(S) OF MATERIAL BEING DISCHARGED AND THE AMOUNT OF EACH TYPE IN CUBIC YARDS As the pipeline will be Installed using a bored pipeline technique, no material will be placed in the drainage below ordinary high water. Any material deposited above thls point Is Is native fill generated by construction cut and fill activities. Native soli is comprised of shale, silt, clay, sand and occasional gravel material. See attached spreadsheet for disturbance volume. 22, SURFACE AREA IN ACRES OF WETLANDS OR OTHER WATERS FILLED (see Instructions) See attached location maps and photographs. Construction (discharge) is performed with heavy equipment such as dozers and backhoes. Sedimentation can be mitigated In the area with straw bales, slit fence, or other sediment control devices. 23. IS ANY PORTION OF THE WORK ALREADY COMPLETE? YES 0 NO ® IF YES, DESCRIBE THE WORK See attached spreadsheet, field forms, location map, and photographs. 24. ADDRESSES OF ADJOINING PROPERTY OWNERS, LESSEES, ETC, WIIOSE PROPERTY ADJOINS THE WATERBODY (Ir more than can be entered hero, please attach a supplemental Ilst) Land owners are indicated on the attached Excel spreadsheet. 25. LIST OF OTHER CERTIFICATIONS OR APPROVALS/DENIALS RECEIVED FROM OTHER FEDERAL, STATE, OR LOCAL AGENCIES FOR WORK DESCRIBED IN THIS APPLICATION AGENCY TYPE APPROVAL' IDENTIFICATICN NUMBER DATE APPLIED DATE APPROVED DATE DENIED N/A ' Would include but is not restricted to zoning, building and flood plain permits, 26. Application Is hereby ado for a permit or permits to authorize tho work described in this application, I certify that the information in this appllcatlo Is co . i to and accurate, I further certify that I possess the authority to undertake the work described herein or am 1 as tho .0 •. oriz d agent of tho applic nt. SIGNATURE F • ' ANT D TE {yF+'E AG NT DATE Tho application must be signed by tho person who desires to undertake the proposed activity (applicant) or it may be signed by a duly authorizod agent If the statement in block 11 has been filled out and signed. 18 U.S.C. Section 1001 provides that: Whoever, in any manner within the Jurisdiction of any department or agency of the United States knowingly and will fully falsifies, conceals, or covers up any trick, scheme, or disguises a material fact or makes any false, factitious, or fraudulent statements or representations or makes or uses any false writing or document knowing same to contain any false, fictitious or fraudulent statements or entry, shall bo fined not more than $10,000 or imprisoned not more than five years or both. ENG FORM 4345 — ONLINE CESPK-00-R Photographic Log Drainage Crossings, E. Dry Hollow Pipeline Phase 2 EnCana Oil and Gas (USA), Inc. 6/12/2008 • �•.,:.Y"' • Y� ,; 3`' { •",'h •Fq. ly 1 . . .1 • �- rI aYxt ;. �' r ,:, , t �, »�. • - nM h.. • Location: Site Number: Coordinates: PHOTO 1 E. Dry Hollow Phase 2 Pipeline West Divide Creek - Perennial 7S -92W -I-1 39.47655N 107.61632W ' 4t :, %',Y r 'i . ,r ;. •• � u� { f 5 . , ti� . � , 'fit :,e• ,, 1 (( r �` ; , {',e t' • Y `� i, 4 ;' X 3 , •z" ,17e , I '' ,, •�'? (r • '�R ;, ;S / ,• l r r .If , ti it t' 'I + RY • Location: Site Number: Coordinates: PHOTO 2 E. Dry Hollow Phase 2 Pipeline West Divide Creek - Perennial 7S -92W-1-1 39.47655N I07.61632W yYly , ,1) *i Xr{a IY'y}Yl,#,{;#' jdti4 t h , • ( 14 ,i L. t•'.5r F,r• ,i •r1, f;,��{ 11 In N ,),fS) it ' tef (j 1Jl F `, ' , >� .� `y .°f,r Sa(( 1 1f r ( ( t t l 14, I, • ; ( � j f i! , �, ;\ ror a� �I > r �8At + -4°-- "Y A ly , '' it {-7 * . ,. F N. r .-- -r ; t �` ir( w4:. , - •4 Location: Site Number: Coordinates: PHOTO 3 E. Dry Hollow Phase 2 Pipeline West Divide Creek — Perennial 7S -92W-1-1 39.47655N 107.61632W Photographic Log Drainage Crossings, E. Dry Hollow Pipeline Phase 2 EnCana Oil and Gas (USA), Inc. 6/12/2008 I, 41',A, aa �pY�7j' f ' ,, .•n. l4 !+W .•rF �;•v ' ,!, t; '4 , . 1 Yf F{ „- sl iti{tW t = I. ,�jk f; I jl ,jIPl13LT q, �krolWt,(j.; ., t +�f r*.tit'' ,, , ( i t3y1 ' t 1 t \4-• '' kj« t �d'h� it ` ,1 3 , 11 •,,#i ' tSi� _ `,�Itr ,s , Cyi 4''''''04).:-.),'..y�^ M ` ► , ! ,41',1••I,!••4 f 1t • I F 4�i rq-• /^ i � l� _Wf••I. . 1 Yf•\r lt=1 Location: Site Number: Coordinates: PIIOTO 4 E. Diy Hollow Phase 2 Pipeline 7S -92W-3-5 39.46886N 107.65345 W Y • �• • ,.46,-iis , ; w`, ,': ' 1. }}. tY • 4• .. • , " '•.' °; ' yr. e kl$4 s1 ' ((/+ n + , Til , I ��, ' tp`'' ti !•1i,,e,N 714 7 i i , P,:.‘'• (} «�_ .. ; r i ;f• 47, 1;''f !, •t i ,• ; � ,1;Q .. 4 4 r '„",,t : t r' •• �}t ' ;' r s .: '. t .1, No tit $, -, r • • a 1 • , . Location: Site Number: Coordinates: PHOTO 5 C. Dry Hollow Phase 2 Pipeline DryI lollow Creek, Intermittent 7S -92W-3-5 39.46886N 107.65345W •' .Multa ,,K11 . ./.4 ' -., f. ,gar i' ` , 1 _., f a ., (: •` i j° mow- {, �� < :; 1 otit.'!;:e, 1 ,r �•', '.^, _,'el ,, . • • Location: Site Number: Coordinates: PitOTO 6 E. Dry Hollow Loop Pipeline Trina Ditch, Intermittent 7S -92W-1-2 39.47646N 107.61867W Photographic Log Drainage Crossings, E. Dry Hollow Pipeline Phase 2 EnCana 011 and Gas (USA), Inc. 6/12/2008 ,• r --,r,. • 7' ' • • 7 .t1 i } a..4 PIIOTO 7 ;{ � ;. s ► i 1 f s) '•. •;': ' ' t . Location: E. Dry Hollow Phase 2 Pipeline Multa Trina Ditch, Intermittent i. � 1'F, ` r 1 nils' ;'fir. 4�':1. 4' � tl• t. 1 Site Number: Coordinates: 7S -92W-1-2 39.47646N 107.61867W ,r3 • - 1`' r PIIOTO8 ,,-`' •1 Ott % Location: E. Dry Hollow Phase 2 Pipeline ., ` ' Intermittent •'1 `< '" fi • Site Number: Coordinates: 7S -92W-3-4 39.46872N 107.64449W � * •+•r q r % 11 1 Y; � .; = rKyatllj 4: u�+, .'i' . 4• Ti .: 1 iFy.14 • `4 t1.'I,'�•' f ....• '� �T i;' jfa �yl - 'fir •. .j ,1' Yfy 1\\JJ 'Al' �r1 Y +� li �4..;{. '111,,: PHOTO 9 ' ,>, i ,•. . � �a, • Location: Site Number: E. Dry Hollow Phase 2 Pipeline Irrigation Ditch, Intermittent 7S -92W-4-6 a r• ,1 , v t Oji; Coordinates: 39.46843N 107.66524W ry,_ 1..i4 • ,.y 74 It a 1 s a k 13 C W, Wr O N N C n z N ,?.1 6 :71mq ry` 1 i!J X N g d A 1 i J 6 O ui J Q i N W a py O 3 S MS` O W J g % 0 W a a a ui -- 11 1 Township 7S 75 TS 7S 7S 75 92W 92W 92W 92W -__ 92W 92W USGS Quad Hunter Mesa Hunter Mesa Hunter Mesa Hunter Mesa G3son Gulch Gibson Guteh - N m ys y I Hydrologic ind Code 1 `Drabmge Nam* NA Ory Hollow Creek NA NA Multa Trina Ditrn West Oivido Creek r E E 6 o¢ X 2 V tDI $ 1 Nath Coordlnatas 39.46849N 39.46886N 39.46872N 39.47657N 35.47646N 39.47655N West Coordinates 1 107.66524W 107.65345W 707.644491M 107.62587W 107.61867W 107.61632W gd ee ci p US 1t000000 p D o 1 tiIIJiIhj O OOO a O 0 00 O 0 —._—_— Sgt lila O O O O 0 0 aa OS 03 $ O O $j t.1 IfstimirtadDisturbance Arae baiow OHW (squnn foci 200. 775 125 300 425 I 1350 nN Q m a a 01 H r m .__ __ 1 Il NO a h v __ __ SpN� V. m F tr.m _.. IAF 1 ;..1", m V. _.. 6r....p m d = m m' c V ;it m : 6 mI _._..-._ m N 11 a O A Y 2" 04 _-. _ __.— 1 4 c n y 6k O C 11 O co 1 tV7J1:414 A� .. ',4 .•1:1. •' .r .IiIPPERFICLD LN I . i� v r, I.. 7S-920-14 1 1 1 i =1-'✓� i 7S.22W: -I' 7s -92%173E E • , 417S -92W-1-2., • • - 7S -92W 3 •- tk• • 1•\ I. MAXFfl LD RD •0 `%. I, Source Maps: 7.5 Minute USGS Topographic Maps (Hunter Mesa and Gibson Gulch) CROSSING LOCATIONS E. CRY HOLLOW LOOP PIPELINE ROUTE PHASE 2 ENCANA OIL & GAS (USA) INC. JUNE 2008 REVISION DATE 6111f08 REVISION NUMBER 00 DRAWN SY: LS APPROVED BY: MS KALE: 1:29.000 al1/44.111% CORDILLERAN WEESE SCtIULTZ FERGUSON 1 ELDER DELL ICHIPPEfFIE-0 WEST MCOUEENEY ESTATES , SUBDIVISION LOUT' lAN r i ,1 - w MAYNARD SCHICKLING ¢ V DARD0 YNSKI MERMAN MC -ASE UI 11�IF� (r6s Of1.M34NE '`DOOYTON LAST DANCE LLC PINDE .BOULTON GAWA DONELSON �_.•,.CUARIE MINOR SUBDIVISION EXEMPTION . DIM WILLIAMS , PROTZ ONION CIRCLE 8 LAND COMPANY HA7-ELDLJSH L}ONELSON t( 1 {T7S WA k L3Eel ;1 P4E ; Phaso 1 CHEROKEE MOUNTAIN ESTATES LLC AKLIN$kI ANDERSON NULLROtIAN�� ` VALIARIO LAST DANCE LLC 3E I ARDANCYAi, 9 [ILL •IILL n DJRNETT ASPEN RESOURCE KNIGHT KNIGHT ALLMON BUERGER TRUST . , :11-• 1'- FU IFnr:Fr) MOON REW RF,W DANCE 110 ENCANA - mN S—'iII A10E ENCANA ENCANA JUNIPER GROUP J2E n �J JT I JUNIPER *"••~• •_�.3 02 , GROUP GUCCINI i GLICCINI II . F MILLER LAND & CATTLE EUBANKS SCOTT t: - 36 vr� MILLER LAND & CATTLE M 2 M1E JUNIPER GITOUP . Proposed East Ory Hollow 0744En r (TRUST 1110 PS014 I j IIANGEGGER ��r } W' TWIN CREEK RANCI- I 91 �/. 11. Phase 2 Pipeline ±20,760tt. MCCITAY RAI CH CO r SrAiJFER I ' STALIPER • MCCRAY_ RANCH • Co, s Ii_. �•l`,t AN - MORG( ; Fa rvlex Ce 13( ':spring, -\ MORGA EnCana Oil & Gas (USA) Inc. East Dry Hollow Phase 2 Pipeline Sections 1-4, 10 & 11, T7S, R92W, & Section 36, T6S, R92W, 6th P.M. Garfield County, Colorado ATC11 90e Main Street Evanston, Wyoming 8293e Phone Ho. (307) 7694546 —LEGEND Existing Access Proposed Pipeline Route Undetermined GATE: June 4, 2008 SCALE: 1 = 2000' PROJECT NO.: 07-04-115 Topo 'D!7 SHEET 1 OF f CORDILLERAN ti September 3, 2008 U.S. Army Corps of Engineers 799 East 3rd Street, Suite 2 Durango, CO 81301 Attn: Ms. Sue Nall 826 211/2 Road Grand Junction, CO 81505 T: 970.263.7800 F: 970.263.7456 RE: EnCana Oil & Gas (USA), Inc., E. Dry Hollow Loop Pipeline Phase 2, Additional Crossings Dear Ms. Nall, Cordilleran Compliance Services, Inc. (Cordilleran) on behalf of EnCana Oil & Gas (USA), Inc. (EnCana), recently surveyed an additional portion of the proposed East Dry Hollow Loop Pipeline Phase 2 that crosses the Eubank property. This proposed pipeline was originally surveyed on 6/12/2008. Access to the Eubank property was recently granted by the land owner allowing the completion of the survey. This data is provided to the United States Army Corps of Engineers (USACoE) as a courtesy as the jurisdictional water crossings identified fall under the Nationwide 404 Permit with no notification or additional permitting requirements. Construction of these crossings will be conducted under Nationwide Permit #12 for utility crossings including the Colorado Regional Conditions. All crossings will be constructed in accordance with USACoE regulations and best management practices. Attachments with this letter include: a location map, data spreadsheet, and photographic log. Please do not hesitate to contact me at 970.263.7800 or at mikebrygger@cordcomp.com if you have any questions or concerns. Thank you for your attention to this matter. Sincerely, Cordilleran Compliance Services, Inc. Michael Brygger Senior Environmental Scientist Enclosure cc: Brenda R. Linster, EnCana Oil & Gas (USA), Inc. Renata Busch, EnCana Oil & Gas (USA), Inc. Project File: E08081 Cordilleran Compliance Services, Inc. Grand Junction, CO • Denver, CO Environmental Consulting Engineers and Scientists d a w tan a 0 0 0 x w d 0 00 0 0 N L N E 0.)cnQ cn z 0 C4 0 z x a A a W 7S -92W-2-2 7S -92W-2-3 7S -92W -I1-1 I 9/2/2008 9/2/2008 9/2/2008 E. Dry Hollow Loop PL E. Dry Hollow Loop PL E. Dry Hollow Loop PL I _ .-i N N 7S 7S 7S 92W _ 92W 92W Hunter Mesa Hunter Mesa Hunter Mesa Silt Silt Silt 140100 140100 140100 NA NA NA Dry Hollow Ck. Dry Hollow Ck. Dry Hollow Ck. Irrigation Ditch Irrigation Ditch Intermittent NN r, vi N M ON rl Z - &0 N T M e N cr. M .-- n r- O C O 00 Mti Or N CA O ;o r O Open Cut Open Cut Open Cut O O 'n 0 v, 53 53 59 N rl 'nN e NA NA NA NA NA NA n i O in o 0.5 __ 0.5 0.75 in O 0 o c 1.5 2 2 N N N Ni 2 2 2 V in V? .. in .-. V1 .. Vi d h ... '11y1 6 4 35 7 4 40 in M NA NA NA 2.9 2.0 3.3 0.00228 0.00122 0.00203 b 'n a en Cil ~ 1C e1 W 3 ry tLtl 3 t h ESite Number Date Surveyed Pad or Access Road Number 0 d r v USGS Quad Nearest Town Hydrologic Code Unit Drainage Name Tributary to Drainage Type North Coordinates West Coordinates Construction Description Road Width (feet) Fill Length (feet) Fill Width (feet) Recommended Culvert Size (feet in diameter) Recommended Culvert Length (feet) Up Gradient OHW Height (feet) Down Gradient OHW Height 'Average OHW Height 1 Up Gradient OHW Width (feet) Down Gradient OHW Width Average OHW Width Up Gradient Top of Bank Height (feet) Down Gradient Top of Bank Height Average Top of Bank Height Up Gradient Top of Bank Width (feet) Down Gradient Top of Bank Width Average Top of Bank Width Approximate Cubic Yards Fill in Drainage (yds') 'Approximate Cubic Yards Fill Below Ordinary High Water Mark (yds') Approximate Water Below Ordinary High Water Mark (acres) o 4 'Landowners 1 Photographic Log Additional Drainage Crossings, E. Dry Hollow Pipeline Phase 2 EnCana Oil & Gas (USA), Inc. 9/2/2008 PHOTO 1 Location: E. Dry Hollow Phase 2 Pipeline Irrigation Ditch Site Number: 7S -92W-2-2 Coordinates: 39°26'12.13N 107°38'09.23W Location: Site Number: Coordinates: Location: Site Number: Coordinates: PHOTO 2 E. Dry Hollow Phase 2 Pipeline Irrigation Ditch 7S -92W-2-2 39°26'12.13N 107°38'09.23W PHOTO 3 E. Dry Hollow Phase 2 Pipeline Irrigation Ditch 7S -92W-2-3 39°28' 12.62N 107°38'07.61W Photographic Log Additional Drainage Crossings, E. Dry Hollow Pipeline Phase 2 EnCana Oil & Gas (USA), Inc. 9/2/2008 PHOTO 4 Location: E. Dry Hollow Phase 2 Pipeline Irrigation Ditch Site Number: 7S -92W-2-3 Coordinates: 39°28'12.62N 107°38'07.61W Location: PHOTO 5 E. Dry Hollow Phase 2 Pipeline Intermittent Drainage Site Number: 7S -92W-11-1 Coordinates: 39°28'06.72N 107°38'17.12W Location: Site Number: Coordinates: PHOTO 6 E. Dry Hollow Phase 2 Pipeline Intermittent Drainage 7S -92W-11-1 39°28'06.72N 107°38'17.12W ,.,STLE 4VEESE SCHULTZ MERMAN T6S BELL w. SCHICKLING 0 OMEASE amu` rA M34NE WA GAWA L3E FERGUSON LOUTHAN ELDER , — HIPPERFIELD I WEST CQUE IN/EY1ESTATES SUBDIVISION MAYNARD DONELSON CURRIE MINOR DARDYN▪ SKI ; SUBDIVISION • EXEMPTION BO SUtTON PI DEN•.BOULTON . • •, ,i c LAST DANCE LLC x O 1- 2 HAZELBUSH DONELSON nrirr, c LAST DANCE LLC 'u WILLIAMS DAHLIN CIRCLE B LAND COMPANY PROTZ BLM I.i, � f MILLER LAND & CATTLE 5995 —••. .. I, \ JUNIPER GROUP SCO1I ;i(; �1 MILLER LAND & CATTL[ c1 1 ( • J2E • �' 'LANGEGG' 4•. P4E CHEROKEE 3E, r. ARBANEYA MOUNTAIN • ESTATES LLC $..:� AKLINSKI ,' O Phase 1�r ANDERSON 70 HILL /ROMAN\��;' VALIARIO ALLMON LAST DACE LLC ,7S-92Wt2;o2Tz 7S-92 -2_-3 • 2 1 HILL ASPEN RESOURCE KNIGHT 0 MOON REW REW ENCANA O2 ®7S -92W --At 1: 1 ENCANA HILL KNIGHT EIUERGERI- TRUST BURNETT P1 iFnr.F=n ENCANA WALTER r' HENDERSON & MOLLER JUNIPER GROUP Proposed East Dry Hollow Phase 2 Pipeline ± 20,750 ft. 'l '' THOMPSON 11 BLM 4514 MCCRAY RANCH CO 14 BLM :- STAUF STAUFER M1E JUMPER 1J- / l /_— GROUP �`'� III/HERCf I, UST STAUFER LANGEGGER PMN CREEK RANCH • 12 6/73 MORGAN STA4FER,' MAN RANCC CO Fa rview Ce 1.; .S)rririg MOI IG $- z 0 EnCana Oil & Gas (USA) Inc. East Dry Hollow Phase 2 Pipeline Sections 1-4, 10 & 11, T7S, R92W, & Section 36, T6S, R92W, 6th P.M. Garfield County, Colorado OAT CR SURVEYING 908 Main Street Evanston, Wyoming 82930 Phone No. (307) 789-4545 —LEGEND — Existing Access - - - - ■ Proposed Pipeline ----■ Route Undetermined DATE: June 4, 2008 SCALE: 1"= 2000' PROJECT NO.: 07-04-115 Topo rD" SHEET 1 OF 1 ENCANA.. EnCana Oil & Gas (USA) Inc. Volume 1 Master Stormwater Management Plan Mamm Creek Unit COR -034840 EnCana Oil & Gas (USA) Inc. Revised February 2008 Contents 1.0 Introduction 1-1 1.1 Site Specific Records 1-1 1.2 SWMP Administrator 1-2 2.0 Narrative Description of Master SWMP Permit Coverage Area 2-1 2.1 Sequence of Major Activities 2-1 2.1.1 Well Pads and Roads 2-1 2.1.2 Pipelines 2-2 2.1.3 Compressor Stations, Treatment Facilities, or Other Facilities 2-4 2.2 Area Estimates 2-6 2.3 Description of Existing Topography and Soils 2-6 2.4 Description of Existing Vegetation 2-6 2.5 Identification of Potential Pollution Sources 2-7 2.6 Allowable Sources of Non-Stormwater Discharge 2-8 2.7 Receiving Water 2-8 2.8 Master SWMP Permit Area Map and Individual Stormwater Site Plans 2-9 3.0 Best Management Practices (BMPs) 3-1 3.1 Erosion, Drainage, and Sediment Control BMPs 3-1 3.2 Non-Stormwater Control BMPs 3-1 3.2.1 Materials Delivery and Storage 3-2 3.2.2 Material Handling and Spill Prevention 3-2 3.2.3 Vehicle Cleaning, Fueling, Maintenance, and Tracking Controls 3-2 3.2.4 Waste Management and Disposal 3-3 3.2.5 Dewatering 3-3 3.3 Stormwater Manual of BMPs 3-4 3.4 Phased BMP Implementation 3-5 4.0 Interim Reclamation and Final Stabilization 4-1 5.0 Inspection and Maintenance 5-1 5.1 Inspection Schedule 5-1 5.1.1 Minimum Inspection Schedule for active sites 5-1 5.1.2 Post -Storm Event Inspections at Temporarily Idle Sites 5-1 5.1.3 Completed Sites 5-1 5.1.4 Winter Conditions Inspections Exclusion 5-2 5.2 Performing Inspections 5-2 5.3 Maintenance 5-2 5.4 Documenting Inspections and Maintenance 5-3 6.0 Plan Revisions and Retention 6-1 7.0 Inactivation Notice 7-1 8.0 Signature 8-1 9.0 References 2 List of Appendices Appendix A General Permit Application Appendix B Revegetation Manual Appendix C Existing Soil and Vegetation Data Appendix D Master SWMP Permit Area Map Appendix E Stormwater Manual of Best Management Practices (BMPs) Appendix F Final Stabilization Certification Appendix G Inspection and Maintenance Report Form Appendix H Inactivation Form 1.0 Introduction This Master Stormwater Management Plan (Master SWMP) satisfies the Colorado Department of Public Health and Environment (CDPHE) Water Quality Control Division (WQCD) General Permit No. COR -030000 issued on May 31, 2007 for Stormwater Discharges Associated with Construction Activities (the Stormwater Construction Permit). EnCana Oil & Gas (USA) Inc. (EnCana) has submitted a General Permit Application to WQCD, a copy of which is provided as Appendix A. This Master SWMP has been prepared in compliance with CDPHE WQCD, the Federal Clean Water Act (CWA), and the National Pollutant Discharge Elimination Permit (NPDES) regulations found in 40 CFR, Part 122.26 for stormwater discharges. The objectives of this Master SWMP are to: 1. Identify all potential sources of pollution which may reasonably be expected to affect the quality of stormwater discharges associated with construction activity within this Master SWMP permit area at each project site; 2. Describe the practices to be used to reduce the pollutants in stormwater discharges associated with construction activity within this Master SWMP permit area at each project site (also known as Best Management Practices (BMPs)); and ensure the practices are selected and described in accordance with good engineering practices, including the installation, implementation and maintenance requirements; 3. Be properly prepared and updated to ensure compliance with the terms and conditions of the Stormwater Construction Permit; 4. Work hand in hand with the Site Specific Records, as described in the following section; and 5. Serve as an education tool and comprehensive reference/guide to stormwater management for inspectors, surveyors, engineers, and EnCana employees and contractors. EnCana construction activities fall under one of two types. Exploration and Production (E&P) sites involve the construction of well pads, roads, and other facilities. Midstream Services (also referred to as Gas Gathering) sites involve the construction of pipelines and compressor, treatment, and other facilities. This Master SWMP is intended to address stormwater management for any and all of these sites within this Master SWMP's Permit Coverage Area. 1.1 Site Specific Records While Volume 1 of the Master SWMP contains all of the general permit area information, Volume 2 of the Master SWMP contains all of the Site Specific Records including all Individual Stormwater Site Plans (Site Plans), as discussed in Section 2.8, and all Inspection and Maintenance Reports (discussed in Section 5.4). These Site Specific Records contain information specific to each site (each well pad, compressor station, section of road/pipeline, etc.), including information on areas of disturbance, ecosystems and vegetation, soil types, percent pre -disturbance vegetation, etc. Any changes to the design of individual sites or the BMPs used at those sites will be noted on the Site Plans as those changes occur, and kept with the Site Specific Records. The Site Specific Records (Volume 2 of the Master SWMP) are bound separately from the body of this Master SWMP; however, both are readily available during any inspection. Both the body of this SWMP (Volume 1) and the Site Specific Records (Volume 2) comprise the entire SWMP, and go hand in hand in keeping EnCana in compliance with stormwater regulations. The Site Specific Records will be kept at the EnCana field office in C:\Documents and Settings'rbusch\Local Sedings\Temporary Internet Files\OLK8A2Man rn Creek SWMP (East Dry Hallow Loop) 021808. doe' 1-1 Revised February 2008 Parachute during active construction and site inspections to ensure accurate implementation, inspections, and maintenance of BMPs, as well as timely revisions to the Site Specific Records. 1.2 SWMP Administrator The SWMP Administrator is responsible for the process of developing, implementing, maintaining, and revising this SWMP as well as serving as the comprehensive point of contact for all aspects of the facility's SWMP. SWMP Administrators: • E&P Sites: Terry Gosney, Regional Environmental Coordinator 2717 County Road 215, Suite 100, Parachute, CO 81635 (970) 285-2600 • Midstream Services: Brad Ankrum, Piceance Midstream Operations Manager 2717 County Road 215, Suite 100, Parachute, CO 81635 (970) 285-2600 C \Documents and Settings4busch\Local Settings\Temporary Internet Files\0LK8A0Mamm Creek SWMP (East Dry Hallow Loop) 021808doc 1-2 Revised February 2008 2.0 Narrative Description of Master SWMP Permit Coverage Area Name of Permit Coverage Area: Mamm Creek Unit Permit Number: COR -034840 Location of the Permit Coverage Area: • County: Garfield and Mesa County. • City: Located in Colorado approximately 1 mile south of Rifle and south of the the southern portion of the Piceance Basin. • Township/Section/Range: Township 6S, 7S, & 8S, Range 92W, 93W, & 94W, sections, Sixth Principal Meridian. Activities at the Permit Coverage Area will likely involve the construction of: Colorado River within portions or all of 113 • Well pads • Access roads • Pipelines • Compressor stations • Water Treatment Facility • Fresh Water Storage Pond • Evaporation Facility The above construction activities are only typical and may vary once construction begins. Up-to-date information on the construction of well pads, roads, pipelines, etc. will be kept with the Site Specific Records (Volume 2 of the Master SWMP). 2.1 Sequence of Major Activities Site specific, scheduling, surface use agreements, and/or other constraints can and/or may dictate changes in construction sequences. Significant sequence changes are addressed in the Site Specific Records (Volume 2 of the Master SWMP). Specific details on the construction and maintenance of BMPs mentioned below are provided in the Stormwater Manual of Best Management Practices (BMP Manual) as discussed in Section 3.3. 2.1.1 Well Pads and Roads Construction activities for well pads and roads are generally completed in the following sequence: Preconstruction: 1. Surveys. Topographic, vegetation, wildlife and archeology, as dictated. 2. Temporary BMP's. Where physical access is available, installation of terminal perimeter and temporary sediment controls, such as wattles, silt fence and/or other as necessary. Actual BMPs used for each site are shown on the Site Plans (discussed in Section 2.8) and kept with the Site Specific Records (Volume 2 of the Master SWMP). Construction: Ci k Documents and SeaingstrbuschVLocal Settings\Temporary Internet FilesrOLK8A0Ma,nni Deet SWMP (East Dry Hatlow Loop) 021808 (100 2-1 Revised February 2008 3. Vegetation Clearing. Vegetation will be cleared/grubbed and placed along the perimeter at the terminal discharge edges/points in a windrow and/or dam beyond the edge of excavation and at any run -on -protection discharge points, and/or chipped or other depending on landowner requirements. 4. Diversions and Retention Reservoirs. After vegetation clearing and prior to topsoil stockpiling, diversions are to be placed for run -on -protection (ROP) to prevent the greater landscape from discharging onto the planned disturbance. Temporary sediment control BMPs shall be placed at the discharge points of the ROP until permanent erosion controls can be installed along the entire length of the ROP. Diversions are to be installed along the terminal discharge edge inside of the vegetation windrows to convey site water/sediment to terminal discharge points where rough retention reservoirs are to be installed. The retention reservoir outlets are to receive temporary sediment control BMPs until permanent retention reservoirs and erosion, drainage, and sediment BMPs can be installed. 5. Topsoil Stripping/Conservation. All ACCESSIBLE TOPSOIL is to be removed from areas that are to be excavated, covered in subsoils, or turned into stabilized unpaved surfaces. If initial topsoil stockpile areas are insufficient to accommodate the quantities of topsoil being generated, the excess is to be placed at either end of the subsoil stockpile and segregated as much as possible. After major earthwork, grading, and erosion/drainage/sediment controls are complete, any areas that can be identified for immediate interim reclamation shall receive topsoil. 6. General Rough Grading. The site location will be graded to provide suitable surfaces for vehicle traffic and/or building sites, and may be graded to establish surface drainage patterns, such as berms or roadside ditches as necessary. 7. Facility Specific Grading. Individual facilities may require additional excavation to allow for construction of foundations. Excess soil will typically be used in general site grading. 8. Foundation Construction. To support facilities (such as tanks, processing equipment, etc), foundations will be constructed. Foundations may consist of select backfill, concrete spread footings, or piles. Finished support elevations are to be installed twelve to eighteen inches (12-18") above finished grade or the lowest point of the facility. 9. Facility Construction. Tanks, processing equipment, etc. will be constructed. Interim Reclamation: 10. Gravel Surfacing. Areas used for access, parking, or materials staging will typically be gravel surfaced. 11. Reclamation of Unused Areas. Areas not needed for facilities, roads, parking, or materials staging will generally be reclaimed. Salvaged topsoil will be spread and the vegetative seed mix will be applied. 12. Application of Erosion Stabilization. Depending on terrain (e.g. steep slopes and drainage crossings) additional measures may be applied to increase stability of the reclaimed area. Final Reclamation: 13. Reclamation of Post -Operation Areas. When operation of well pad or road is no longer necessary, the area will be decommissioned and all newly disturbed areas will be reclaimed. Any remaining topsoil will be spread and the vegetative seed mix will be applied. This may occur after termination of this permit and under the coverage of a new construction permit. 2.1.2 Pipelines Construction activities for pipelines are generally completed in the following sequence: Preconstruction: 1. Surveys. Topographic, vegetation, wildlife and archeology, as dictated. C :\ Documents and Setlingsabusch\Local Settings\Temporary Internet Files\OLK8AWamm Creek SWMP (East Dry Hallow Loop) 021808.doc 2-2 Revised February 2008 2. Mark Right -Of -Way. The construction right-of-way (ROW) will be marked prior to construction with laths and/or flagging. Laths/flagging will be maintained throughout construction and will not be removed until after reclamation activities have been completed. 3. Temporary BMPs. EnCana's stormwater inspectors will determine locations to install preconstruction temporary erosion control devices, per site specific BMP installation plans and as necessary. EnCana's contractor will maintain the erosion control structures as directed by the stormwater inspectors throughout all phases of construction, or until permanent erosion control measures are installed. Actual BMPs used for each site are shown on the Site Plans, which are kept with the Site Specific Records (Volume 2 of the Master SWMP). Construction: 4. Vegetation Clearing. If necessary, vegetation will be cleared and placed in a windrow at the edge of the work area to be used later in reclamation activities, removed from the construction site, or burned/chipped depending on landowner requirements. Details for windrows are provided within the Stockpiling BMP of the BMP Manual (discussed in Section 3.3). 5. Topsoil Stripping. All ACCESSIBLE TOPSOIL (from the entire width of the right-of-way) will be removed and temporarily stockpiled along the up -hill side of the right-of-way (if terrain grades will allow) for later use in reclamation activities. 6. General Grading. For pipeline segments that occur in relatively rough terrain, general grading will be conducted to create a safe and workable ground surface. This is generally done to form a relatively level work surface on steep cross slopes and to reduce slopes in undulating terrain (arroyo and wash crossings). The site location will be graded to provide suitable surfaces for vehicle traffic and/or building sites, and may be graded to establish surface drainage patterns, such as berms or roadside ditches as necessary. 7. Trench Excavation. The trench needed for pipeline installation is almost always off -set in the ROW. The surveyors may indicate the location of the trench on their pipeline lateral. Generally, the trench will be located in the first third of the ROW. The remaining two thirds of the ROW will be used for working space. The trench depth and width will vary with the number of pipes to be installed and the pipe diameter. Generally, a 4 -foot deep trench will be excavated by track -mounted excavators. The ditch will be excavated and sloped in accordance with OSHA specifications. The cover from top of pipe to ground level will be a minimum of 36 inches. Where rock is encountered, tractor -mounted mechanical rippers or rock trenching equipment may be used to facilitate excavation. The trench will be excavated and subsoil material stockpiled within the confines of the approved right-of-way limits. Trench spoil will be stored in a separate location from the previously segregated topsoil. 8. Pipe Installation. Pipe installation will include stringing, bending for horizontal or vertical angles in the alignment, welding the pipe segments together, coating the joint areas to prevent corrosion, and then lowering -in and padding. 9. Stringing. Pipe will be hauled by truck to the pipeline ROW. Each joint of pipe will be unloaded and placed parallel to the ditch. 10. Bending. After the joints of pipe are strung along the ditch, individual joints of pipe may need to be bent to accommodate horizontal and vertical changes in direction. Field bends will be made utilizing a hydraulically operated bending machine. Where the deflection of a bend exceeds the allowable limits for a field -bent pipe, factory (induction) bends will be installed. 11. Welding. After the pipe joints are bent, the pipe is lined up end-to-end and clamped into position. The pipe is then welded in conformance with 49 CFR Part 192, Subpart E. "Welding of Steel Pipelines" and API 1104, "Standard for Welding Pipelines and Related Facilities". 12. Welding Inspection. Welds will be visually inspected by a qualified inspector. Any defects will be repaired or cut out as required under the specified regulations and standards. 13. Coating. To prevent corrosion, the pipe will be externally coated with fusion bonded epoxy coating prior to delivery. After welding. field joints will be coated with fusion bond epoxy coating, tape and (0 ',Documents and Settingsbbusch\Local Semngs\Temporary Internet Files \OLK8A\Marrin Creel SWMP (East Dry Hallow Loop) 021808 dor 2-3 Revised February 2008 primer, or shrink sleeves. Before the pipe is lowered into the ditch, the pipeline coating will be visually inspected and tested with an electronic detector, and any faults or scratches will be repaired. 14. Lowering -In and Padding. Once the pipe coating operation has been completed, a section of the pipe will be lowered into the ditch. Side -boom tractors may be used to simultaneously lift the pipe, position it over the ditch, and lower it in place. Inspection will be conducted to verify: that minimum cover is provided; the trench bottom is free of rocks, debris, etc.; external pipe coating is not damaged; and the pipe is properly fitted and installed into the ditch. Specialized padding machines will be used to sift soil fines from the excavated subsoil to provide rock -free pipeline padding and bedding. In rocky areas, padding material or a rock shield will be used to protect the pipe. Topsoil will not be used to pad the pipe. At the completion of lowering -in and padding activities the contractor may install trench breakers around the pipelines to minimize subsurface water flow. Details for trench breakers are provided within the BMP Manual (discussed in Section 3.3). 15. Backfilling. Backfilling will begin after a section of the pipe has been successfully placed in the ditch and final inspection has been completed. Backfilling will be conducted using a bulldozer, rotary auger backfill, padding machine or other suitable equipment. Backfilling the trench will use the subsoil previously excavated from the trench. Backfill will be graded and compacted, where necessary for ground stability, by being tamped or walked in with a wheeled or track vehicle. Compaction will be performed to the extent that there are no voids in the trench. Any excavated materials or materials unfit for backfill will be utilized or properly disposed of in conformance with applicable laws or regulations. 16. General Grading. If general grading was conducted to facilitate pipeline construction, these materials will be replaced and graded to recreate the preconstruction topography. Final Reclamation: 17. Cleanup. Cleanup activities will be initiated as soon as practicable after backfilling activities have been completed. All construction -related debris will be removed and disposed of at an approved disposal facility. 18. Subsoil and Topsoil Placement. Subsoil will be evenly re-contoured across the right-of-way to pre -construction conditions. After the subsoil has been re -spread the contractor will spread the previously segregated topsoil back across the right-of-way. The topsoil will be evenly spread to original contours. 19. Vegetation. After any remaining topsoil is spread, the vegetative seed mix will be applied. The area will be revegetated according to private landowner Surface Use Agreements and/or according to the BLM/Forest Service reclamation requirements. Details for revegetation are provided within the BMP Manual (discussed in Section 3.3) and the Revegetation Manual (provided as Appendix 8). 20. Application of Erosion Stabilization. Depending on terrain (e.g. steep slopes and drainage crossings) additional measures may be applied to increase stability of the reclaimed area. Possible erosion stabilization methods are provided within the BMP Manual (discussed in Section 3.3). Actual locations and measures used are shown on the Site Plans, which are kept with the Site Specific Records (Volume 2 of the Master SWMP). 2.1.3 Compressor Stations, Treatment Facilities, or Other Facilities. Construction activities for compressor stations, treatment facilities, and other facilities are generally completed in the following sequence: Preconstruction: 1. Surveys. Topographic, vegetation, wildlife and archeology, as dictated. 2. Temporary BMP's. Where physical access is available, installation of terminal perimeter and temporary sediment controls, such as wattles, silt fence and/or other as necessary. Actual BMPs C:Documents and Settingstrbusch\Local Setlings\Temporary Internet Files\OLKSAWamm Creek SWMP (East Dry Hallow Loop) 021808.doc 2-4 Revised February 2008 used for each site are shown on the Site Plans, which are kept with the Site Specific Records (Volume 2 of the Master SWMP). Construction: 3. Vegetation Clearing. Vegetation will be cleared/grubbed and placed along the perimeter at the terminal discharge edges/points in a windrow and/or dam beyond the edge of excavation and at any run -on -protection discharge points, and/or chipped or other depending on landowner requirements. 4. Diversions and Retention Reservoirs. After vegetation clearing and prior to topsoil stockpiling, diversion are to be placed for ROP to prevent the greater landscape from discharging onto the planned disturbance. Temporary sediment control BMP's shall be placed at the discharge points of the ROP until permanent erosion controls can be installed along the entire length of the ROP. Diversions are to be installed along the terminal discharge edge inside of the vegetation windrows to convey site water/sediment to terminal discharge points where rough retention reservoirs are to be installed. The retention reservoir outlets are to receive temporary sediment control BMP's until permanent retention reservoirs and erosion, drainage, and sediment BMP's can be installed. 5. Topsoil Stripping/Conservation. All ACCESSIBLE TOPSOIL is to be removed from areas that are to be excavated, covered in subsoils, or turned into stabilized unpaved surfaces. If initial topsoil stockpile areas are insufficient to accommodate the quantities of topsoil being generated, the excess is to be placed at either end of the subsoil stockpile and segregated as much as possible. After major earthwork, grading, and erosion/drainage/sediment controls are complete, any areas that can be identified for immediate interim reclamation shall receive topsoil. 6. General Rough Grading. The site location will be graded to provide suitable surfaces for building sites and vehicle traffic, and may be graded to establish surface drainage patterns, such as berms or roadside ditches as necessary. 7. Excavation. Soil will be excavated to allow for the construction of foundations. Trenches will be excavated for all underground piping and conduit. Excess soil will typically be used in general site grading. 8. Foundation Construction. Foundations will be constructed to support facility buildings. Foundations may consist of select backfill, concrete spread footings, piles, etc. Finished support elevations are to be installed twelve to eighteen inches (12-18") above finished grade or the lowest point of the facility. 9. Facility Construction. Buildings, tanks, processing equipment, etc. will be constructed. Utilities will be installed. Interim Reclamation: 10. Landscaping. If necessary, certain areas will be spread with topsoil and landscaped. 11. Gravel Surfacing. Areas used for access, parking, or materials staging will typically be gravel surfaced. 12. Reclamation of Unused Areas. Areas not needed for facilities, roads, parking, or materials staging will generally be reclaimed. Salvaged topsoil will be spread and the vegetative seed mix will be applied. 13. Application of Erosion Stabilization. Depending on terrain (e.g. steep slopes and drainage crossings) additional measures may be applied to increase stability of the reclaimed area. Possible erosion stabilization methods are provided within the BMP Manual (discussed in Section 3.3). Actual locations and measures used are shown on the Site Plans, which are kept with the Site Specific Records (Volume 2 of the Master SWMP). Final Reclamation: 14. Reclamation of Closed Facilities. When facilities are no longer necessary, the buildings may be demolished, according to approved procedures. All construction materials will be removed and the newly disturbed areas will be reclaimed. Any remaining topsoil will be spread and the vegetative seed C',Documents and Settings\rbuschWocal SettingsAremporary Internet Flesl0LK8AAMamm CTe_Y. SP/MP (East Dn, Hallow Loon) 021808 doe 2-5 Revised February 2008 mix will be applied. This may occur after termination of this permit and under the coverage of a new construction permit. 2.2 Area Estimates The Permit Coverage Area encompasses portions or all of 113 sections of surface land (approximately 72,273 acres) in Township 6, 7, and 8 South, Range 92, 93, and 94 West. Development of the natural gas resource and related facilities within the area is estimated to result in a total disturbance area of 999+ acres. Because the area will vary over time, these are only approximate estimates. This information is used to help determine the extent of control measures (BMPs) needed. 2.3 Description of Existing Topography and Soils The Permit Coverage Area consists of relatively flat mesas and ridge crests, alluvial terraces, steep slopes, mountainsides, intermittent drainage swells, and valley bottoms. The Mamm Creek Unit is located south of the Colorado River, within the southern portion of the Piceance Basin. The Piceance Basin is a broad, asymmetric, southeast -northwest trending structural basin that contains sedimentary rocks up to 20,000 feet thick and lies between the White River uplift to the northeast, the Gunnison uplift to the south, and the Uncompahgre swell to the west (George 1927; Weiner and Haun 1960). Elevations within the Permit Coverage Area range from approximately 5,000 feet above mean sea level (amsl) along the Colorado River to 8,900 feet on Grass Mesa near the western edge of the unit area. Annual precipitation within the Permit Coverage Area ranges from 10 to 40 inches. Soils surrounding the Permit Coverage Area are distributed according to the major soil forming factors including climate (effective moisture and temperature), parent material, topographic position, and slope. The soils table within Appendix C provides a summary of the soil types found within the Permit Coverage Area (including permeability, available water capacity, surface runoff, erosion hazard, and others). Most of these soil types are considered to possess moderate to very severe potential for water erosion. 2.4 Description of Existing Vegetation The existing percent vegetative ground cover for each well pad, section of roadway/pipeline, etc. within the Permit Coverage Area is estimated on each inspection and maintenance report form (discussed in Section 5.4), which are kept with the Site Specific Records (Volume 2 of the Master SWMP). The primary vegetation types in the Mamm Creek Unit are sagebrush shrublands (Artemisia tridentata), pinyon -juniper woodlands (Pinus edulis-Juniperus osteosperma), and Gambel oak shrublands (Quercus gambelil). A small amount of aspen is present at the southern and eastern edge of the Project Area. The riparian vegetation includes narrowleaf cottonwood (Populus angustifolia), mountain maple (Acerglabrum), river birch (Betula occidentalis), alder (Alnus incana spp. tenuifolia), dogwood (Cornus sereciea), and Woods' rose (Rosa woodsi)). Snowberry occurs in the shrublayer, and orange sneezeweed (Dugaldia hoopesil), tailcup lupine (Lupinus caudatus), field horsetail (Equisetum arvense), American vetch (Vicia americana), orchardgrass (Dactylis gloverata), northern bedstraw, geranium (Geranium caespitosum), and yarrow (Achillea Ianulosa) occur in the understory. Further to the southwest, numerous blue spruce (Picea pungens) occur along the creek (BLM 2005). Vegetation within the Grass Mesa area primarily consists of hillsides dominated by pinyon -juniper woodlands (Juniperus osteosperma and Pinus edulis) and the mesa top dominated by mixed mountain shrubs, mostly big sagebrush (Artemisia tridentate), Gambel oak (Quercus gambelii), and serviceberry (Amelanchier alnifolia). Several of the proposed locations fall within areas dominated by sagebrush -steppe. Herbaceous and succulent species commonly found in the project area include arrow -leaf balsamroot (Balsamorhiza sagittata), prickly pear cactus (Opuntia polyacantha), prairie lupine (Lupinus wyethii), orange globemallow (Sphaeralcea munroana), and several species of penstemon (Penstemon spp.) and paintbrush (Castilleja spp.) (BLM 2004). C:\Documents and SettingsVbuscb\Local Settings\Temporary Internet Files\OLKBAWamm Creek SWMP (East Dry Hallow Loop) 021808.doc 2-6 Revised February 2008 The entire Mamm Creek Unit has, to some extent, been affected by cheatgrass (downy brome) (Bromus tectorum) (see Invasive, Non -Native Species). It is often associated with sagebrush communities and disturbed areas, especially two -track roads. In the pinyon/juniper woodlands, this species may be found as the understory. Stressed by the recent drought, many pinyon pine trees in the Colorado Plateau have succumbed to an engraver beetle (Ips confusus) infestation. However, in the Mamm Creek Unit, the scattered pinyon pine trees have shown few signs of infestation. 2.5 Identification of Potential Pollution Sources Potential sources of pollution are associated with all phases of the project from the start of construction though interim reclamation and up until final stabilization has occurred. Final stabilization occurs when construction activities have been completed and all disturbed areas have been either built on, paved, or a uniform vegetative cover has been established with a density of at least 70 percent of pre -disturbance levels, or equivalent permanent, physical erosion reduction methods have been employed. The most common source of pollution during construction is sediment resulting from the erosion of recently cleared and/or graded areas, such as cut/fill slopes and soil stockpiles. However, there may be many potential pollution sources at any given site. The following types of conditions that might affect the potential for a pollutant source to contribute pollutants to stormwater (CDPHE, 2007B) shall be evaluated: • The frequency of the activity (i.e., does it occur every day orjust once a month? can it be scheduled to occur only during dry weather?); • Characteristics of the area where the activity takes place (i.e., surface type (pavement, gravel, vegetation, etc.), physical characteristics [site gradients, slope lengths, etc.]); • Ability of primary and secondary containment (fuel tanks, drum storage, etc.) at product storage and loading/unloading facilities to prevent and contain spills and leaks; • Proximity of product storage and loading/unloading facilities to waterways or drainage facilities; • Concentration and toxicity of materials which may to be found in the site's stormwater runoff; and • Contamination of storage facilities/containment with stored materials (i.e., used oil drums or tanks coated with spilled oil). The following items are potential sources of pollutants at the Mamm Creek Unit. Each of the potential sources of pollutants will be controlled using one or more of the following types of BMPs: Erosion Controls, Drainage Controls, Sediment Controls or Non-Stormwater Controls. Descriptions and details for each of these types of BMPs are provided in the BMP Manual (discussed in Section 3.3). Actual BMPs used at each site are shown on the Site Plans (discussed in Section 5.4). Construction: • All Disturbed and Stored Soils: Erosion Controls, Drainage Controls, Sediment Controls. • Vehicle Tracking of Sediments: Sediment Controls, Non-Stormwater Controls. • Management of Contaminated Soils: Non-Stormwater Controls. • Loading and Unloading Operations: Non-Stormwater Controls. • Outdoor Storage Activities (Building Materials, Fertilizers, Chemicals, etc.): Non-Stormwater Controls. • Vehicle and Equipment Maintenance and Fueling: Non-Stormwater Controls. G \Documents and Settingsabusch\Local Settings'\Temporary Internet Fees \DLK8A\Marnm Cr SWMP (East Dry Hallow Loon) 021008 don 2-7 Revised February 2008 • Significant Dust or Particulate Generating Processes: Non-Stormwater Controls. • Routine Maintenance Activities Involving Fertilizers, Pesticides, Detergents, Fuels, Solvents, Oils, etc.: Non-Stormwater Controls. • On -Site Waste Management Practices (Waste Piles, Liquid Wastes, Dumpsters, etc.): Non-Stormwater Controls. • Concrete Truck/Equipment Washing, Including the Concrete Truck Chute and Associated Fixtures and Equipment: Non-Stormwater Controls. • Dedicated Asphalt and Concrete Batch Plants: There will be no asphalt or concrete batch plants located within the Permit Coverage Area of this SWMP. • Non -Industrial Waste Sources Such as Worker Trash and Portable Toilets: Non-Stormwater Controls. Interim/Final Reclamation: • All Disturbed and Stored Soils: Erosion Controls, Drainage Controls, Sediment Controls. • Vehicle Tracking of Sediments: Sediment Controls, Non-Stormwater Controls. • Vehicle and Equipment Maintenance and Fueling: Non-Stormwater Controls. • Significant Dust or Particulate Generating Processes: Non-Stormwater Controls. • Non -Industrial Waste Sources such as Worker Trash and Portable Toilets: Non-Stormwater Controls. 2.6 Allowable Sources of Non-Stormwater Discharge Allowable sources of non-stormwater discharge within the Permit Coverage Area include the following: • Uncontaminated Springs. Although there are several springs within the Permit Coverage Areas, none of these springs are currently located in areas where soil disturbance will occur. If this changes in the future, the controls used at any such location will be noted with the Site Specific Records. • Landscape Irrigation Return Flow. There are several locations where pipelines cross through irrigated fields. These locations will be treated similarly to any water crossing with the use of an appropriate control which will be noted in the Site Specific Records. • Construction Dewatering. Construction dewatering is described and discussed in Section 3.2.5. • Concrete Washout. Concrete washout is described and discussed in Section 3.2.4. • Emergency Fire Fighting Water. Water used to put out any type of fire is considered an allowable source of non-stormwater discharge. No other non-stormwater discharges are allowed under the Stormwater Construction Permit. Other types of non-stormwater discharges must be addressed in a separate permit issued for that discharge. 2.7 Receiving Water Runoff from disturbed areas during construction will be controlled and/or routed through the use of one or more BMPs, as described later in this plan, prior to being discharged to receiving waters. However, it may be expected that runoff from certain areas will infiltrate into the earth and is not expected to contribute to receiving waters. All streams in the Mamm Creek Unit are tributary to the Colorado River. The project area is located in the Mamm Creek watershed, and drained by Gant Gulch, Middle Mamm Creek, and an unnamed tributary to Middle Mamm Creek. Gant Gulch is tributary to West Mamm Creek. These drainages flow to the northeast into the mainstream portion of Mamm Creek. Mamm Creek is a perennial tributary to the Colorado River. C \Documents and Settings vbusch\Local Settings\Temporary Internet Files\OLK8AV.lamm Creek SWMP (East Dry Hallow Loop) 021808.doc 2-8 Revised February 2008 Floodplain habitat occurs along Middle Mamm Creek and East Mamm Creek, which are perennial streams within the Gant Gulch Area. Dry Hollow Creek is also within the Project Area. Riparian habitat is found along the banks of these streams. The riparian vegetation along Middle Mamm creek extends up to 100 feet on either side of the creek. The riparian habitats associated with Middle Mamm, East Mamm and Dry Hollow Creeks, have been determined to be "non-functional" or "functioning at risk" (M. Kinser, BLM, personal communication, September 2005) (BLM 2005). The Grass Mesa area is located within the watersheds of Dry Creek and Ramsey Gulch. Both of these creeks are tributaries to the Colorado River. Stream flows in the drainages within the Grass Mesa area are generally ephemeral and dependent on seasonal storm and snowmelt runoff. Floodplain habitats occur along the intermittent drainages within Dry Creek and Ramsey Gulch but no floodplain habitat would be impacted by the proposed action. Intermittent drainages occur along Dry Creek and Ramsey Gulch. However, no wetland habitats or riparian vegetation have been documented along these drainages (BLM 2004) 2.8 Master SWMP Permit Area Map and Individual Stormwater Site Plans An overall Master SWMP Permit Area Map is provided as Appendix D. This map is likely to change constantly and will be updated at least annually. The Master SWMP Permit Area Map includes: • Contours and elevations (topography) with existing drainage patterns; • Locations and names of major surface waters such as streams, wetlands, irrigation ditches, canals, etc.; • Master SWMP permit area boundaries; • Construction area locations including roads, pipelines, well pads, compressor station facilities, treatment facilities, water parks, and all other facilities. Individual Stormwater Site Plans (Site Plans) of each site (well pad, access road, section of pipeline, etc.) are provided with the Site Specific Records (Volume 2 of the Master SWMP) Separate Site Plans will be developed for each phase of construction: preconstruction, construction, interim reclamation (if applicable), final stabilization (if applicable) and final reclamation (if applicable). These Site Plans include: • Construction site boundaries (this is the area expected to be disturbed by clearing, excavating, grading, or other construction activities); • Contours and elevations (topography) with existing and proposed drainage patterns; • Limits of well pads and locations of reserve pits and well heads (if applicable); • All areas of ground surface disturbance, including areas of cut and fill; • Locations of all potential pollutant sources listed in Section 2.5 (including areas used for vehicle fueling, the storage of materials, equipment, soil, or waste, etc...); • Locations of all minor surface waters and all anticipated allowable sources of non-stormwater discharge (including springs, dewatering, concrete washout, etc...); • Locations of all existing and planned BMPs (including erosion, drainage, and sediment controls); • Locations, names, distances to streams, wetlands, irrigation ditches, canals, other surface waters, etc; • The size, type and location of any outfall(s). If the stormwater discharge is to a municipal separate stormwater system, name that system, the location of the storm sewer discharge, and the ultimate receiving water(s). Figures showing typical BMP locations along roadways and pipelines are provided as part of the BMP Manual (discussed in Section 3.3). G tDocumenis and Settings\rbusch\Laval 2-9 Revised February 2008 Settings\Temporary Internet FilesVOLKBAAMenm C:eei SWMP I East Dry Hallow Loopt 021808 dos 3.0 Best Management Practices (BMPs) A key component of this Master SWMP is employing BMPs to improve stormwater quality. Local factors will be evaluated to determine what BMPs are suitable and practical at different locations. BMPs will be employed in different combinations during construction activities and phases as conditions warrant. Due to the fact that this Master SWMP is likely to cover more than one ecosystem (as described in Section 2.4), the selection of BMPs (including type, quantity, sequence/combination, etc.) will vary at each site within the Master SWMP Permit Area. Specific BMPs to be employed at each well pad, road, pipeline, or other facility are identified on the Site Plans, which are kept with the Site Specific Records (Volume 2 of the Master SWMP). 3.1 Erosion, Drainage, and Sediment Control BMPs The primary method for controlling erosion, drainage, and sediment transport consists of minimizing initial disturbance of the soil and ground cover. However, many other methods can also be used. All stormwater- related BMPs will fall under at least one of the following three types of controls: • Erosion Control. Any source control practice that protects the soil surface and/or strengthens the subsurface in order to prevent soil particles from being detached by rain or wind, thus controlling raindrop, sheet, and/or rill erosion. • Runoff Control. Any practice that reduces or eliminates gully, channel, and stream erosion by minimizing, diverting, or conveying runoff. • Sediment Control. Any practice that traps the soil particles after they have been detached and moved by wind or water. Sediment control measures are usually passive systems that rely on filtering or settling the particles out of the water or wind that is transporting them prior to leaving the site boundary. BMPs may also be classified as either structural or non-structural controls: • Structural Control. Handles sediment -laden stormwater prior to it leaving each site. Structural BMPs are used to delay, capture, store, treat, or infiltrate stormwater runoff. Some examples of structural BMPs include sediment traps, diversions, and silt fences. Most Runoff Controls and • Sediment Controls can also be classified as Structural Controls. • Non-structural Control. Reduces the generation and accumulation of pollutants, including sediment, from a construction site by stabilizing disturbed areas and preventing the occurrence of erosion. Some examples of non-structural BMPs include revegetation, mulching, and surface roughening. These types of stabilization techniques are not only the most effective method for reducing soil loss, but they are also normally the most cost effective due to low initial cost and reduced maintenance requirements. Most, but not all, Erosion Controls can also be classified as Non-structural Controls. The Site Plans, as mentioned previously and kept with the Site Specific Records (Volume 2 of the Master SWMP), show the proposed locations of all erosion, drainage, and sediment control BMPs (both structural and non-structural). Detailed descriptions, design criteria, construction specifications, and maintenance information for all BMPs are provided in the BMP Manual (discussed in Section 3.3). 3.2 Non-Stormwater Control BMPs Non-stormwater controls include general site and materials management measures that indirectly aid in the minimization of water pollution. Types of pollution sources include, but are not limited to, litter, oil and grease, hazardous material spills, and sediment. C1Documents and Setlingstrbusch\Local Settings\Temporary Internet Files \OLKBA\Mamm Creek SWMP (East Dry Hallow Loo0) 021808 doc 3-1 Revised February 2008 3.2.1 Materials Delivery and Storage The good housekeeping practices listed below will be followed on site during construction and operation: • An effort will be made to store only enough product required for task completion. • All materials stored on site will be stored in a neat and orderly manner in appropriate containers and, where possible, under a roof or other enclosure, and/or within secondary containment areas to avoid contact with stormwater. • Products will be kept in their original containers with the original manufacturer's label. • Substances will not be mixed with one another unless recommended by the manufacturer. • Whenever possible, all of the product will be used before disposing of the container. • Manufacturer's recommendations for proper use and disposal will be followed. Additional information on material delivery and storage is available in the BMP Manual (discussed in Section 3.3). 3.2.2 Material Handling and Spill Prevention In addition to the material storage practices (listed in the previous section) that will be used to reduce the risk of spills or other accidental exposure of materials and substance, the BMP Manual (discussed in Section 3.3) will provide more detailed information on spill prevention and control. Furthermore, the Spill Prevention, Control and Countermeasure (SPCC) Plan will be followed for the control of hydrocarbons. In general, spill prevention and response procedures will include notification (CDPHE 24-hour spill reporting line — 877-518- 5608), clean-up with the use of spill kits and absorbents, and ensuring that materials and wash water can not discharge from the site, and never into a storm drain system or stream. 3.2.3 Vehicle Cleaning, Fueling, Maintenance, and Tracking Controls As required by EnCana Oil & Gas (USA), Inc. master service agreement(s) and drilling contract(s), contracting companies and/or vendors are required to service all vehicles and equipment prior to entering EnCana facilities. However, in the event maintenance procedures are required at EnCana facilities, all fluids transferred must utilize secondary containment and drip pans to minimize a release of materials and properly dispose or recycle spent materials in compliance with local, state, and federal guidelines. While on site, equipment will be parked, serviced, and fueled within designated areas. Equipment fueling on pipeline rights-of-way will be mobile during active construction. Periodic inspections of equipment and control procedures will be implemented. Selected equipment may be fueled in place using fuel trucks. When necessary, equipment and machinery will be decontaminated at an on-site decontamination area prior to removal from the construction area. Areas will be provided with adequate waste disposal receptacles for liquid as well as solid waste. Vehicle tracking of sediments is not expected to be a problem due to construction scheduling. Construction vehicles will remain on site throughout earth -moving activities. All other vehicles remain in stabilized areas and do not enter the construction area until that area is stabilized. However, applicable BMPs (such as scheduling (to minimize site access), stabilized construction entrances, vehicle cleaning, etc.) will be utilized if sediment tracking does become a problem. In addition to the typical practices listed above, the BMP Manual (discussed in Section 3.3) provides more detailed information on vehicle cleaning, fueling, maintenance, and tracking controls. C 1Documenis and SetangssbuschlLocal Se111ngs\Temporary Internet FiiesVOLK8AVdarnm Creek SWMP (East Dry Hallow Loop) 021808 don 3-2 Revised February 2008 3.2.4 Waste Management and Disposal As required by EnCana Oil & Gas (USA), Inc. master service agreement(s) and drilling contract(s), contracting companies and/or vendors are required to manage all waste generated by their activities at EnCana facilities in compliance with local, state, and federal guidelines. EnCana Oil & Gas (USA) utilizes a periodic inspection program to ensure waste management requirements are fulfilled and inspections are documented. A few of the waste management procedures that will be followed include the following: + Proper bins will be provided for trash collection and disposal in compliance with local, state, and federal guidelines. • Contaminated soils will be placed into a lined and bermed area. Samples of the impacted soil will be collected and a complete characterization analysis will be performed. When applicable, the impacted soil will be sent to a licensed disposal facility. • The contractor will provide portable toilets. Sanitary waste will be regularly collected by a licensed sanitary waste management contractor and disposed of in an approved manner. • In the event that sediment is inadvertently transported off the construction site, it will be collected and returned to the site and placed on the soil stockpile or spread over the construction pad area and compacted. On well pads and access roads concrete washout is used as an interior conductor pipe ballast. Concrete washout water can NOT be discharged to surface waters or to storm sewer systems without separate permit coverage. However, discharge to the ground of concrete washout water from washing of tools and concrete mixer chutes may be authorized by this permit, provided that (CDPHE, 2007a): 1. The source is identified in the SWMP; 2. BMPs are included in the SWMP to prevent pollution of groundwater; and 3. These discharges do not leave the site as surface runoff or to surface waters. Locations where concrete washout activities take place are shown on the Site Plans. Additional waste management procedures, including solid waste, hazardous waste, contaminated soil, concrete washout, and septic and sanitary waste, are included in the BMP Manual (discussed in Section 3.3). 3.2.5 Dewatering Dewatering refers to the mechanical removal of water from an excavation or other structure. Both groundwater and stormwater may require dewatering during construction. Dewatering of pipelines at the completion of hydrostatic testing will be required for most pipeline installations. 3.2.5.1 Groundwater Dewatering Groundwater is very rarely encountered during the construction activities associated with either E&P sites or Midstream Services sites. If groundwater is encountered, it is typically during construction of a pipeline across a stream crossing. These pipelines are either bored under the stream or a flume is utilized. Non-stormwater construction dewatering of groundwater can NOT be discharged to surface waters or to storm sewer systems without separate permit coverage. However, discharges to the ground of water from construction dewatering activities may be authorized by this permit, provided that (CDPHE, 2007a): C:\Documents and Setting sfbusch\Local Settings\Temporary Internet Files\OLK8AUAamm Creek SWMP (East Dry Hallow Loop) 021808.doc 3-3 Revised February 2008 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; and 4. These discharges do not leave the site as surface runoff or to surface waters. Dewatered groundwater shall be pumped or diverted to a sediment control BMP prior to discharge to the ground. Locations of groundwater dewatering, as well as any BMPs utilized, will be noted on the Site Plans as soon as such dewatering occurs. Additional information on groundwater dewatering is provided in the BMP Manual, discussed in Section 3.3. 3.2.5.2 Stormwater Dewatering The discharge of pumped stormwater (not including groundwater or other non-stormwater sources) from excavations, ponds, depressions, etc., to surface water, or to a municipal separate storm -sewer system is allowed by the Stormwater Construction Permit, as long as the dewatering activity and associated BMPs are identified in the SWMP (including location of the activity), and BMPs are implemented in accordance with the BMP Manual, discussed in Section 3.3 (CDPHE, 2007c). Stormwater that collects in open depressions or trenches during construction activities will be dewatered into an existing sediment control, such as a detention pond, a sediment trap, or simply into a well -vegetated area to percolate into the ground and catch suspended sediment. The quality, source, and location of dewatering, as well as any BMPs utilized, will be noted on the Site Plans as soon as such dewatering occurs. Additional information on stormwater dewatering is provided in the BMP Manual, discussed in Section 3.3. 3.2.5.3 Pipeline Dewatering New Department of Transportation (DOT) pipelines are hydrostatically tested with water upon completion of construction. Once the hydrostatic testing has been completed, dewatering of the pipeline must occur. This will involve the insertion of a displacer, commonly referred to as a pig, in the pipeline. The discharge rate will be regulated, and energy dissipation devices, and/or sediment controls will be used, as necessary, to prevent erosion, streambed scour, suspension of sediments, or excessive streamflow. Locations on pipeline dewatering, as well as any BMPs utilized, will be noted on the Site Plans as soon as such dewatering occurs. Additional information on stormwater dewatering is provided in the BMP Manual, discussed in Section 3.3. 3.3 Stormwater Manual of BMPs A Stormwater Manual of Best Management Practices (BMP Manual) is provided as Appendix E. The BMP Manual has been prepared to provide EnCana personnel, contractors, and subcontractors with information on the proper selection, design, installation, and maintenance of BMPs to manage oil and gas related stormwater and to meet federal and state SWMP implementation requirements. The main objectives of the BMP manual are to: • Serve as an easy-to-use guide for selecting, designing, installing, and maintaining BMPs. • Function as a reference for construction plans and specifications. • Ultimately lead to the avoidance of any net increase in off-site erosion and sedimentation of waters of the U.S. The BMPs within this BMP Manual are organized into four main types of controls for easy reference: Erosion Controls, Runoff Controls, Sediment Controls, and Non-stormwater Controls. Each of these types of controls has been discussed earlier in this section of the SWMP. CVDocuments and SettingstrbuscrdLooal Settings\Temporary Internet FilesVOLKBAdrdamm Creek SWMP [East Dry Hallow Loop) 021803 dm 3-4 Revised February 2008 3.4 Phased BMP Implementation Various BMPs will be implemented and maintained during different phases of the project. A description of each phase is as follows: • Preconstruction. The preconstruction phase involves the installation of BMPs (temporary and/or permanent) around each site perimeter and at discharge points (such as vegetation buffers (no installation required for this BMP), slash, wattles, diversions, sediment basins and reservoirs, etc...). • Construction. The construction phase involves the stripping and stockpiling of topsoil, the excavation and backfill for access roads, pipelines, and well pads, and the installation of additional BMPs (preferably permanent BMPs) to control erosion and sedimentation (such as tracking topsoil piles and the installation of roadside channels, culverts, diversions, etc...). • Interim Reclamation. The interim reclamation phase primarily involves seeding of all disturbed areas not needed during operation of the well pads. However, this phase also involves the installation of any additional permanent BMPs that may be needed, as well as the continued maintenance and inspections of all BMPs until final stabilization occurs. Final stabilization occurs once all surfaces are built on, paved or graveled, and/or a uniform stabilized vegetative cover with a density of 70 percent of pre -disturbance levels has been established or when an equivalent permanent, physical erosion reduction method has been employed. A further explanation of final stabilization is provided as section 4 of this plan. • Final Reclamation. For pipelines, this phase involves seeding of all disturbed areas, and the installation of any additional permanent BMPs that may be needed, as well as the continued maintenance and inspections of all BMPs until final stabilization occurs. For other areas (roads, well pads, facilities, etc...), this phase (which may occur after termination of this permit and under the coverage of a new construction permit) occurs when operation of the area is no longer necessary. In these cases, this phase will include the installation of any additional BMPs required during facility decommissioning as well as the spreading of any remaining topsoil, the application of seed, and the inspection/maintenance of all BMPs until final stabilization occurs. Temporary controls, such as silt fencing, may be used to control sediment and erosion during preconstruction and construction activities. Permanent controls, such as diversions and sediment traps, may also be used during the initial phases of the project. However, only permanent controls will be used during interim reclamation and final stabilization. Temporary controls may be converted into permanent controls (such as revegetating a diversion) if needed. The primary control used during interim and final stabilization will be revegetation. Seeding will occur as soon as possible after disturbance of an area is complete. If the seeding is not successful, the area will either be reseeded or other controls will be put in place until reseeding can occur. C:\Documents and Settings4busctiLocal Settings\Temporary Internet Files\OLKBAtMamm Creek SWMP (East Dry Hallow Loop) 021808 doc 3-5 Revised February 2008 4.0 Interim Reclamation and Final Stabilization As soon as practicable after construction activities have been completed in a disturbed area, interim (for well pads, or other facilities) or final (for roads and pipelines) reclamation will be started to prevent further erosion of soil from that area. This typically occurs immediately upon completion of earthwork activities. All disturbed areas (except for the surface of dirt roads, those portions covered by pavement or a structure, and those areas used during operation of a well) will be stabilized with permanent controls. The most common measure used to achieve final stabilization is revegetation. Mulching, erosion control blankets, surfacing with gravel or slash, and/or other methods may also be used. Structural controls (such as diversions, berms, and sediment traps) may be revegetated and used as permanent measures to control pollutants in stormwater discharges that will occur after construction operations have been completed. Appendix E includes detailed information on each of the previously discussed BMPs. In addition, a revegetation manual is provided as Appendix B, which provides guidance as to possible methods and materials needed to accomplish revegetation on differing site conditions. The specific BMPs used at each site are shown on the Site Plans which are kept with the Site Specific Records (Volume 2 of the Master SWMP). 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 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 final stabilization. Areas developed as stabilized unpaved surfaces as needed for operation of the facility after interim reclamation, will also qualify as "finally stabilized." This includes dirt road surfaces and the portions of the well pad surfaces that cannot be revegetated due to operational necessity, but does not include slopes, ditches, and other areas where revegetation is necessary. Stabilized unpaved surfaces will be prepared in such a way as to prevent ongoing erosion issues. Coverage under the Stormwater Construction Permit may be inactivated for any individual site or a portion/section of that site (i.e. the access road to a well pad) when the area has attained final stabilization and all temporary erosion and sediment control measures associated with that area have been removed. An area will be considered finally stabilized when construction and interim reclamation is complete and when the above final stabilization criteria have been met, even though the site may be disturbed again in the future for final reclamation. However, future land disturbances that follow final stabilization and result in disturbance of one acre or greater (such as final reclamation) will require new permit coverage at that time. Upon final stabilization of any site or portion/section of a site, a signed certification sheet (provided in Appendix F) will be placed into the Site Specific Records binder to replace the Site Plans and the inspection and maintenance records for that area. However, the Site Plans and inspection reports shall be retained in a separate location for a period of three years following final stabilization of the Permit Coverage Area. These documents will be made available to WQCD or EPA upon request and at the time of inspection. C'.ADocuments and Settinys,rbuschVLocal Settings \Temporary Internet Flies VOLK8AVMamnm Cr SWMP (East Dry Hallow Loop) 021803 doc 4-1 Revised February 2008 5.0 Inspection and Maintenance Inspections and maintenance is an extremely important part of the Stormwater Construction Permit. The Construction Manager will ensure that all stormwater management controls are constructed or applied in accordance with governing specifications or good engineering practices. Experienced teams will be used for construction. A first inspection will occur upon installation of the controls. In addition, all workers on the site will be trained as to the location and use of the controls, especially those controls that will be disturbed as construction proceeds across the site. The goal is to minimize the potential for inadvertent removal or disturbance of BMPs and to prevent the off site transport of sediment and other pollutants. 5.1 inspection Schedule Inspections are required as soon as the first soil disturbance occurs at the site. Once final stabilization of the site has occurred and the EnCana inspector has filled out the final stabilization certification sheet (see Section 4), inspections are no longer necessary. Specific information regarding inspection schedules are provided in the following sections. 5.1.1 Minimum Inspection Schedule for active sites The minimum inspection schedule applies to those sites under active construction, which includes the period from when the ground is initially disturbed to when construction activity is completed, and also includes the preparation of areas that will be revegetated for interim reclamation. During the Active Site period, a thorough inspection of the site stormwater management system (which includes all utilized BMPs) must be conducted at least 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. There are three exceptions to the minimum inspection schedule which are described in detail within the next three sections: post -storm event inspections at temporarily idle sites (inspections required within 72 hours after a storm), inspections at completed sites (inspections required monthly), and inspections during certain winter conditions (inspections may not be required). Any use of an exception is temporary, and does not eliminate the requirement to perform routine maintenance due to the effects of a storm event or other conditions that may impact BMP performance, including maintaining vehicle tracking controls and removing sediment from impervious areas. Inspections, as described above, are required at all other times. 5.1.2 Post -Storm Event Inspections at Temporarily Idle Sites Temporarily idle sites are those where there are no construction activities occurring following a storm event. At such sites, post -storm event inspections must be conducted prior to restarting construction activities at the site, but no later than 72 hours following the storm event, and the delay noted in the inspection report. Routine inspections still must be conducted at least every 14 calendar days. 5.1.3 Completed Sites Once construction is completed and the site has been prepared for interim or final stabilization (including completion of appropriate soil preparation, amendments and stabilization practices), the site (or portion of the site) is considered a Completed Site (for purposes of the stormwater permit). Note: only construction activities that result in a disturbance of the ground surface must be completed. Construction activities that can be conducted without disturbance of the ground surface, such as certain well completion activities, would not prohibit a site from otherwise qualifying as a Completed Site. (Completed Sites still require permit coverage until the final stabilization criteria have been met) Completed Sites qualify for a reduced inspection schedule, as the potential for pollution is reduced if the site has been adequately prepared and/or seeded. However, because slopes and other disturbed areas may not C:\Documents and Settingstrbusch\Local 5-1 Revised February 2008 Settings \Temporary Internet Files\OLKSAVAamm Creek SWMP (East Dry Hallow Loop) 021808.doc be fully vegetated, erosion in these areas still occurs which requires maintenance activities such as regrading and seeding of problem areas. As such, inspections must continue in order to address these situations. During the Completed Site period, a thorough inspection of the site stormwater management system (which included all utilized BMPs) is required at least once every month. The SWMP must be amended to indicate those areas that will be inspected at this reduced frequency. 5.1.4 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 soil erosion do not exist. This temporary exclusion is applicable only 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. It is typical that when snow cover exists, even at a Completed Site, significant potential for erosion and BMP failure exists when melting does finally occur. Therefore, the site should prepared prior to snow cover to ensure it is as stabilized as possible, and be prepared to perform site maintenance when melt -off occurs, to alleviate any potential problems. Inspection records (see Section 5.4) will document that winter conditions exist and that inspections will be excluded. 5.2 Performing Inspections Inspections will be conducted by qualified personnel on the following areas: • All vegetated areas until 70% of pre -disturbance vegetation levels are reached. • All BMP measures identified in this document. • Construction site perimeter and discharge points. • All disturbed areas. • Areas used for storage of material/waste that are exposed to precipitation. • Other areas determined to have a significant potential for stormwater pollution, such as demolition areas or concrete washout locations, or locations where vehicles enter or exit the site. These areas will be inspected to determine if there is evidence of, or the potential for, pollutants leaving the construction site boundaries, entering the stormwater drainage system, or discharging to state waters. All BMPs will be evaluated to determine if they still meet the design and operational criteria in the SWMP and if they continue to adequately control pollutants at the site. Any BMPs not operating in accordance with Appendix E of this SWMP will be addressed as soon as possible, immediately in most cases, to minimize the discharge of pollutants, and the Site Specific Records will be updated. 5.3 Maintenance Maintenance activities will ensure that all control measures are functioning at optimum levels and that all procedures and techniques will be in proper working order during a runoff event or spill condition. Any maintenance, repairs, or replacements deemed necessary after required inspections will be corrected as soon as possible (if not immediately), to minimize the discharge of pollutants. Certain maintenance procedures may take a short period of time to make sure that all the proper safety precautions are in place, such as a "one call" for utilities, if the maintenance involves excavation of sediment located above a buried pipeline. Maintenance will include, but is not limited to: • Pickup or otherwise prevention of litter, construction debris, and construction chemicals from becoming a pollutant source prior to anticipated storm events. • Removal of sediment from silt fences, sediment traps, and other sediment controls. CitDocuments and Settings9busch'\Local Settings'Temporary Internet FilesvOLKBAIMamm Creek SWMP (East Dry Maslow Loon) 021808. dos 5-2 Revised February 2008 • Reseeding of any bare spots where vegetation has failed to establish. • Repairs and/or adjustments to any erosion and sediment control that is deteriorating or found to be performing inadequately. Detailed maintenance requirements for each BMP are identified in Appendix E. When maintenance is required, the following process will typically be followed: 1. Perform inspections according to the minimum inspection schedule discussed in Section 5.1. 2. Note the need for maintenance on the inspection and maintenance report form. 3. If necessary, collect the additional materials and/or resources needed to perform the maintenance activity. 4. Perform maintenance and note the date performed on the inspection and maintenance report form. 5. Re -inspect the area to ensure compliance. 5.4 Documenting Inspections and Maintenance The permittee must document inspection results, maintenance activities, and maintain a record of the results for a period of 3 years following expiration or inactivation of permit coverage. A typical inspection and maintenance report form is provided in Appendix G. Although the site may have a phased construction schedule, all construction areas may be inspected at the same time and on one form. Each well pad, road, pipeline, or other facility which is inspected shall be clearly written on the inspection form. Inspection reports will include the following: • Date of inspection, name of inspector, and title of inspector • The area inspected (Site ID), type of area (well pad, access road, pipeline, etc.), phase of construction (preconstruction, construction, etc.), and type of inspection (active, completed, etc.) • Site specific information including disturbed area, soil type(s), ecosystem/vegetation type(s), receiving waters, etc. • Vegetation observations including the percent pre -disturbance vegetation and whether or not vegetation growth has reached 70% of pre -disturbance levels • Specific inspection requirements (all BMPs and areas of potential pollutant sources) • Observed conditions including: - Location(s) of discharges of sediment or other pollutants from the site - Location(s) of BMPs that need to be maintained - Location(s) of BMPs that failed to operate as designed or proved inadequate for a particular location - Location(s) where additional BMPs are needed that were not in place at the time of inspection • Description and date(s) of corrective action(s) taken, and measures taken to prevent future violations • Changes necessary to the SWMP A hand drawn Site Plan shall be included, if necessary, to show the location(s) of any observed condition (as listed above). C:\Documents and Settingstrbusch\Local Settings\Temporary Internet Files1OLK8A\Mamm Creek SWMP (East Dry Hallow Loop) 021808.doc 5-3 Revised February 2008 After adequate corrective action(s) has been taken and recorded, or where a report does not identify any incidents requiring corrective action, the report will contain a signed statement indicating the site is in compliance with the permit to the best of the signer's knowledge and belief. All completed inspection and maintenance report forms (a blank copy of which is included in Appendix G) are kept with the Site Specific Records (Volume 2 of the Master SWMP). C:\Dowments and Settingsebusch\_ocal Settings\Temporary Internet FilesVOLK8Addamm Creek S'NMP (East Dry Harlow Loop) 021808 don 5-4 Revised February 20018 6.0 Plan Revisions and Retention When BMPs or site conditions change, the Master SWMP (Volume 1) and/or the Site Specific Records (Volume 2) will be amended to accurately reflect the actual field conditions. Examples include, but are not limited to, removal of BMPs, identification of new potential pollutant sources, addition of BMPs, modification of BMP installation/implementation specifications or maintenance procedures, and changes in items included in the Site Plans. Changes to the Master SWMP (Volume 1) shall be noted on the SWMP Revisions log at the front of this plan. Changes to individual site conditions will be noted in the Site Specific Records (Volume 2) on the applicable inspection and maintenance report form. All changes in Volume 1 and Volume 2 shall be made prior to actual changes in the site conditions, except for responsive SWMP changes, which shall be made immediately after changes are made in the field or as soon as practical, but in no case more than 72 hours after the change(s) in BMP installation and/or implementation occur at the site that require development of materials to modify the SWMP. At a minimum, the Master SWMP will be updated annually. The Master SWMP and the Site Specific Records will be retained at the EnCana field office in Parachute during active construction and site inspections to ensure accurate implementation and maintenance of BMPs, and required revisions. These documents will be retained for a period of three years following final stabilization of the Permit Coverage Area. These reports will be made available to WQCD or EPA upon request and at the time of inspection. C \Documents and SettingsVbusch\Local Settings\Temporary Internet Files\OLK8A\Mamm Creek SWMP (East Dry Hallow Loop) 021808doc 6-1 Revised February 2008 7.0 Inactivation Notice When all disturbed areas associated with the Stormwater Construction Permit have reached "final stabilization" (as described in Section 4), all temporary erosion and sediment control measures have been removed, and all components of the SWMP are complete, the area no longer requires coverage under the permit terms. At that time, EnCana will submit an Inactivation Notice that closes this permit to the WQCD upon final stabilization of all areas covered by the permit. A blank copy of this form is included in Appendix H of this document. Upon receipt of the Inactivation Notice, the WQCD will provide written confirmation that coverage under this permit has been terminated. This historical documentation will be maintained at the EnCana field office in Parachute for a period of at least three years following termination of permit coverage. C :ADocuments and SettingslrbuscMLocai Settings\Temporary Internet FilesVOLKBA)Mamm Cm SA,MP (East Dry Halo..., Loop) 02169E inc 7-1 Revised February 2003 8.0 Signature "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 gathered and evaluated 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, to the best of my knowledge and belief, is true, accurate, and complete. 1 am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment or knowing violations." Brad Ankrum Printed name Piceance Midstream Operations Manager Title /i:/0.1� Signature Date Lindsey Kruckenberq South Piceance Midstream Stormwater Inspector Printed name Title Signature Date C9Documents and Set1ings\rbusch\Local Settings\Temporary Internet Files\OLK8A\Mamm Creek SWMP (East Dry Hallow Loop) 021808.doc 8-1 Revised February 2008 9.0 References CDPHE, 2007a. CDPS General Permit, Authorization to Discharge under the Colorado Discharge Permit System. Colorado Department of Public Health and Environment. Water Quality Control Division. Issued May 31, 2007. http://www.cdph e.state. co. us/wq/PermitsUn it/stormwater/SWConstruction Perm it. pdf CDPHE, 2007b. General Permit Application and Stormwater Management Plan Preparation Guidance. Colorado Department of Public Health and Environment. Water Quality Control Division. Revised July, 2007. http://www.cdphe.state.co.us/wq/PermitsUnit/stormwater/SWConstructionApplication.pdf CDPHE, 2007c. Rationale. Colorado Department of Public Health and Environment. Water Quality Control Division. 2007. http://www.cd phe.state.co. us/wq/PermitsUnit/stormwater/SWConstruction Rationale. pdf CDPHE, 2007d. Stormwater Fact Sheet — Construction at Oil and Gas Facilities. Colorado Department of Public Health and Environment. Water Quality Control Division. Revised July, 2007. http://www.cdphe.state. co. us/wq/PermitsUnit/stormwater/OGfactsheet. pdf George, R.D. 1927. Geology and Natural Resources of Colorado. University of Colorado, Boulder, CO. Mutel, C.F., and Emerick, J.C., 1992. From Grassland to Glacier - The Natural History of Colorado and the Surrounding Region. U.S. Department of Interior, Bureau of Land Management. 2004. Environmental Assessment of the Grass Mesa Geographic Area Plan. EA# C0140-2004-081 EA. Glenwood Springs Energy Office, Colorado. Online version available at: http://www.blm.gov/co/st/en/fo/gsfo/GSFO MasterPlansOfDevelopment.print.html U.S. Department of Interior, Bureau of Land Management. 2005. Environmental Assessment of the Gant Gulch Geographic Area Plan. EA# C0140-2005-134EA. Glenwood Springs Energy Office, Colorado. Online version available at: http://www.blm.gov/co/st/en/fo/gsfo/GSFO MasterPlansOfDevelopment.print.html USEPA, 1990. NPDES Stormwater Regulations, 40 CFR Parts 122.26. U.S. Environmental Protection Agency. Weiner, R.J., J.D. Haun. 1960. Guide to the Geology of Colorado. Geological Society of America. o ..Documents and Sethncs'buscn\Local Setlings,Teinporary Internet FilesiOLK°AiMamm Ore SbVMP l=ast Dry Haltom Loop) 021803.(loc RE, sec) February 2908 Bill Biller, Jr.. Governor James B. Marlin, Executive Director STATE OF COLORADO 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://www.cdphe.sta10 co. us June 20, 2007 Laboratory Services Division 8100 Lowry Blvd. Denver, Colorado 80730-6928 (3D3) 692-3090 'ferry C. Costley, Emir. Coord. EnCana Oil & Gas (USA) Inc., 2717 County Road 215 Ste. 100 Parachute, CO 81635 970/285-2687 RE: Final Permit, Colorado Discharge Permit System — Stormwater Certification No: COR -034840 Mamm Creek Garfield County Local Contact: Terry Gosney, Envir. Coordinator 970/309-8155 Dear Sir or Madam: Colorado Department of Public I Iealth 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 peri[ and certification. If you have any questions please visit our website at : \vw%v.cdphe.state.co.us/wq/permitsunit/stortnwater 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 Ilealth Department District Engineer, Technical Services, WQCD Permit File STATE OF COLORADO 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 COR034840 This Certification to Discharge specifically authorizes: EnCana Oil & Gas (USA) Inc. LEGAL CONTACT: TT +y) C Go C....:.. !',..... ei C. l7VSn eV, 1.nvi'• t.VV/I(. EnCana Oil & Gas (USA) Inc. 2717 ('nnn )' Rnad 715 Ste, 100 Parachute, CO 81635 Phone # 970/285-2687 ie rry. go sn ey@en c a n a. c onl LOCAL. CONTACT: i eny Go.inc , Env.,. C'oor, ,'IinatL':, Phone # 970/309-8155 terry,nosne ii2eneana.enm During the Construction Activity: Gas/Oil Field Exploration and/or Development to discharge stormwater from the facility identified as Mamm Creek sq which is located at; Various locations Various locations, Co 81650 Latitude 39/25/00, Longitude 107/50/00 In Garfield County to: -- Colorado River Anticipated Activity begins 07/01/2002 continuing through 06/30/2010 On 999 acres (999 acres disturbed) Certification is effective: 07/01/2007 Certification Expires: 06/30/2012 Annual Fee: S245.00 (DO NOT PAY NOW — A prorated bill w.ill be sent shortly.) Page 1 of 22 East Dry Hollow Loop Pipeline Phase 2 Affected Landowner Information County r Parcel # -:Landowners. Contact Info/Mailing4ddress Legal Description Garfield 240111200218 Eubanks, Torrence/Jim 6534 Co. Rd. 331 T7S, R92W, Sec 2 (970) 876-0405 (Jim) Silt, CO 81652 Garfield 240102400002 Schwartz, Henry 1114 Punahou St., Apt. 1 IA T7S, R92W, Sec 2 (808) 943-8736 Honolulu, HI 96826 Garfield 240102200001 Juniper Group/Don Price Attn: Don Price; 411 Franklin St P.O. Bx. 310 T7S, R92W, Sec 2, 1 Clayton, NY 13624 Garfield 240112200265 Langegger, Josef (Pepi) 3807 Lupine Dr. T7S, R92W, Sec 1 (970) 476-5711 Vail, CO 81657 Garfield 217936400245 Miller Land and Cattle 7121 Co.Rd. 311 T6S, R92W Sec 36 (970) 876-2465 Silt, CO 81652 (970)876-2180 Garfield 802321507000 EnCana Oil & Gas (USA) Inc. T7S, R92W, Sec 3 AMENDMENT OF PIPELINE RIGHT-OF-WAY GRANT This AMENDMENT OF PIPELINE RIGHT-OF-WAY GRANT ("Agreement") is dated the 15th day of May 2008 between Josef P. Langegger ("Owner") whose address is 3807 Lupine Drive, Vail, Colorado 81657, and EnCana Oil & Gas (USA) Inc. ("EnCana"), whose address is 370 17th Street, Suite 1700, Denver, Colorado 80202. Owner and EnCana are also referred to herein, together, as the "Parties." Whereas Owner and EnCana Gathering Services Inc. entered into Pipeline Right -of -Way Grant Agreement dated March 26, 2003, recorded on October 31, 2003 in Book 1534 at Page 338 in the records of Garfield County, Colorado, wherein Owner granted EnCana Gathering Services, Inc. a thirty foot Right -of -Way for the installation and operation of one or more pipelines over, through, upon, under and across a parcel of land located in the W/2SE/4 and E/2SW/4 of Section 1 of Township 7 South, Range 92 West, 6(h P.M. ("Pipeline Agreement"). Whereas, EnCana Gathering Services, Inc. installed a gas pipeline and water pipeline according to the terms and provisions of the Pipeline Agreement. Whereas, EnCana is the successor in interest to EnCana Gathering Services (USA) Inc. Whereas, EnCana intends to install another pipeline within the thirty-foot Right -of -Way granted in the Pipeline Agreement. Whereas, EnCana intends to install a launcher/received facility located on the Orion 5y_ Energy Partners Surface Location shown on attached Exhibit A. Whereas, EnCana needs to use space outside of the Right -of -Way granted in the Pipeline Agreement to install the additional pipeline. Whereas EnCana has agreed not to disturb any additional surface area during the installation of its pipeline, except the area originally disturbed by the installation of the pipelines installed by EnCana Gathering Services, Inc. and the area disturbed by the pipeline recently LI installed by Orion Energy Partners shown on attached Exhibit A as the Existing Disturbance 6 Area ("Existing Disturbance Area") and the area shown on attached Exhibit A as the as Total Q .19 Area of New Disturbance Area ("Area of New Disturbance"). The Existing Disturbance Area and i pf' Area of New Disturbance are also referred to herein, together, as the "Disturbed Area". �r 'M Whereas, Owner has agreed to allow EnCana to use the Area of New Disturbance 6' during the installation of the additional pipeline. Now therefore, in consideration of the covenants and agreements contained herein and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the Parties agree as follows: Owner shall allow EnCana the use of the Existing Disturbance Area and the Area of New Disturbance during the installation of the additional pipeline. EnCana shall reclaim and reseed the Disturbed Area immediately after installation of the additional pipeline and launcher/receiver facility. EnCana shall use its best efforts to reseed the Disturbed Area by October 1, 2008 and agrees that reseeding shall be completed no later than May 1, 2009. Upon Owner's execution of this agreement, EnCana shall pay Owner the sum of T u„d> fi irs Such payment shall constitute payment in full by EnCana and its affiliates for all normal damages, including, but not limited to, damages to growing crops, associated with the installation of the additional pipeline and said launcher/receiver facility. Owner and EnCana agree that the additional pipeline and launcher/receiver facility shall be installed pursuant to the terms and conditions of the Pipeline Agreement. Owner EnCaria OH & Gas (USA) Inc. / Josef P. Langegger STATE OF COLORADO )§ COUNTY OF GARFIELD Ricardo D. Gallegos, Attorney -In -Fact 'Si' On thisIRK_ day of May 2008, before me personally appeared Josef P. Langegger, known to the tg`pe the person described in and who executed the foregoing instrument and who acknowtedge;i4bVme that he executed the same. My Commission Expires: 4-27-117` Notary Public: 2'/ STATE OF COLORADO )§ CITY & COUNTY OF DENVER y)fr On this day of 2008, before me personally appeared Ricardo D. Gallegos, as Attorney in Fact for EnCana Oil & Gas (USA) Inc., known to me to be the person described in and who executed the foregoing instrument and who acknowledged to me that he executed the same. My Commission Expires: Notary Public: (729.36), CW0 l 60RSER _00 2003 \. ALUM CAP LS T!:J N8T5845"E, /326.54' dill J2'10'S2"c, 94.88' N87'58'45"E, 2593.54" CENTER 1/4 CORNER SEC. ! CALCULA 1E0 EAST 1/4 CORNER S2 1 CALCULATED Centerline of ;- Proposed Pipeline Total Area of New Disturbance = 0.30 Acres R0 Edge of Existing — Disturbance N2404"11"w, 304.00' PUBLIC LAND SURVEY CORNER 0 ANGLE POINT P.O.B. POINT OF BEGINNING P.01. POINT OF ENDING LIENT: EnCana Oil & Gas (USA) Inc. SCALE- AS cid 0 URVEYED 37: REVISION), i 2108 DRAWN 37: CUT DATE DRAWN: W,ASATCH.. SURVEYING ASSOCIATES 906 NW: STREET, EVANSTON, W7 82930 (307) 789-4545 Orion Energy Partners j Surface Location CORNER;. ST CORNER SEG 1 COUNTY SUR K604 BRASS CAP EAST DRY HOLLOW PHASE 2 EXHIBIT ACROSS LANGEGGER PROPERTY SECTION 1, T7S, R92W, GARFIELD COUNTY, COLOR __ 115 SHEET o. 2 LEGAL DESCRIPTION A pipeline right-of-way located in the W1/2 SE1/4 and the 51/2 SW1/4 of Section 1, T7S, R92W, 6th P.M., Garfield County, Colorado, the centerline of said right-of-way being more particularly described as follows: Commencing at the Southeast Corner of said Section 1, and running thence N 62°54'14"W, 248252 feet to the POINT OF BEGINNING, (the base bearing for this survey being S 00°0626"E, 264722 feet between the Southeast Corner and the East One -Quarter Corner of said Section 1); thence N 31°4046"W, 194.61 feet; thence N 32'4645' W, 233.46 feet; thence N 49°33'42"W, 201.45 feet; thence N 67°58'05"W, 167.28 feet; thence N 24°54'11"W, 304.00 feet; thence N 37°24'16"W, 647.96 feet; thence N 52'10'52-E, 94.88 feet to the POINT OF ENDING, said point lying on the North line of the NE1/4 S W1/4 of said Section 1, N 87°5845"E, 729.36 feet from the Northwest corner thereof. Said centerline being 1843.65 feet in length. Total Area of New Disturbance = 0.30 Acres BASIS OF --BEARING The base bearing for this survey is S 00°0626" E, 2647.22 feet between the Southeast Corner and the East One -Quarter Corner of Section 1; T7S, R92W. CERTIFICATE OF SURVEYOR I, Ted Taggart of Fruita, Colorado hereby certify that this map was made from notes taken during an actual survey made by me or under my direction for EnCana Oil & Gas (USA) Inc. and that the results of which are correctly shown hereon. RIGHT-OF-WAY LENGTHS PROPERTY OWNER SECTION FEET I TOTAL LANGEGGER Sec. 1, T7S R92W I 1843.65 1 1843.65 j Total i 1843.65 LICNT: EnCana Oil and Gas (USA) Inc. OESCRIPTiON: EAST DRY HOLLOW PHASE 2 EXHIBIT ACROSS ' ANGEGGER PROPERTY SECTION 1, T7S, R92W, GARFIELD COUNTY, COLORADO RCOSIGN: / DRAWN BIG Cif AS SHOWN 4�21/08 08 URVEYEO BY: WASATCH SURVEYING ASSOCIATES DATE ORA 3/25/08 I PROJECT NUMBER: 072-04-115 imicz 906 MAIN STREET, EVANSTON, WY 82930 SURVEYING (307) 789-4545 EXHIBIT A of 2 RIGHT-OF-WAY EASEMENT FOR AND IN CONSIDERATION of the sum of TEN AND NO/100 DOLLARS ($10.00) and other good and valuable consideration, in hand paid to Juniper Group LLC (hereinafter referred to as GRANTOR, whether one or more), the receipt and sufficiency of which is hereby acknowledged, whose mailing address is 411 Franklin Street, P.O. Box 310, Clayton, NY 13624, by EnCana Oil & Gas (USA) Inc., whose mailing address is 370 17th Street, Suite 1700, Denver, CO 80202 (hereinafter referred to as GRANTEE), GRANTOR hereby grants, sells, conveys and warrants to GRANTEE, its successors and assigns, a permanent easement, thirty (30) feet in width, for the purpose at any time and from time to time to lay, locate, construct, maintain, inspect, alter, repair, operate, protect, change the size of, replace, relocate, mark, remove and/or abandon in place, one (1) or more pipeline(s) and appurtenances, equipment and facilities useful or incidental thereto, including, but not limited to, valves, metering and corrosion control equipment, and any above -ground appurtenances, as may be necessary or convenient, for the transportation of natural gas, petroleum, petroleum products and derivatives thereof and any other liquids, gases, or substances which can be transported through pipelines, upon and along a route to be selected by GRANTEE on, over, across and through lands owned by GRANTOR, or in which GRANTOR has an interest, situated in Garfield County, State of Colorado described as follows: Township 7 South, Range.92 West, 6'h P.M. Section 1: Lot 2 Section 2: Lots 1 & 2 LA (Co vo and being the same land described in that certain Deed, recorded under the reception number 74501 on March 26, 2008, of the Clerk's office of said County, to which reference is made for further description. In addition to the thirty (30) feet permanent easement area as defined above, GRANTOR grants to GRANTEE a temporary easement thirty (30) feet in width adjacent to the permanent easement, for the purpose of enabling GRANTEE to initially construct the pipeline. After the post -construction cleanup following the initial pipeline construction, the permanent easement area shall be limited to a strip thirty (30) feet wide as referenced above. The permanent easement, located on the above described lands is generally described on Exhibit A attached hereto and made a part hereof. Exhibit A attached hereto is not intended to show the final location of the easement or pipeline as actually constructed; the actual location of the easement will extend fifteen (15) feet on each side of the centerline of the pipeline as actually laid. GRANTOR further grants and conveys unto GRANTEE the right of unimpaired ingress and egress on, over, across and through the above-described lands including other lands owned, leased or claimed by GRANTOR which are adjacent thereto or contiguous therewith for all purposes necessary or incidental to the exercise of the rights herein granted, with the further right of entry to maintain the easement herein granted clear of trees, undergrowth, brush, structures, and any other items, to the extent GRANTEE deems necessary in the exercise of the rights granted herein. GRANTEE shall not be liable for damages caused by keeping said easement clear of trees, undergrowth, brush, structures, or any other obstructions. GRANTEE shall have the right to select, change, and/or alter the right-of-way easement through the property above described or alter the route prior to or during construction with the consent of the GRANTOR which will not be unreasonably withheld or delayed. GRANTOR shall have the right to use and enjoy the above-described premises; provided however, GRANTOR shall not exercise such use and enjoyment in a manner that will impair or interfere with the exercise by GRANTEE of any of the rights herein granted. GRANTOR agrees not to change the grade over the pipeline constructed hereunder and shall not build, create, construct, or permit to be built, created, or constructed, any obstruction, building, lake, engineering works, or any other type of structure over or on said easement. All equipment or appurtenances to the pipeline, which shall be on or above the surface of the ground, shall be installed in a manner to protect the GRANTOR'S livestock when necessary. GRANTEE agrees at the time of construction to bury said pipeline to such depth as will not interfere with lands under cultivation, and in accordance with applicable Federal and State regulations. Following installation of the pipeline, GRANTEE agrees to restore the ground as nearly as is practicable, to its condition prior to the installation of the pipeline and in accordance with Federal regulations. GRANTEE shall, at its sole expense, keep the lands subject to the easement granted herein free and clear of all liens and encumbrances resulting from GRANTEE'S and its agents' activities on the said lands and shall indemnify and hold harmless GRANTOR from and against any and all liens, claims, demands, costs, and expenses, including, without limitation, attorneys' fees and court costs, in connection with or arising out of any work done, labor performed, or materials furnished with respect to or by GRANTEE and/or GRANTEE'S agent TO HAVF, ANI) TO HOLD unto GRANTEE, its successors and assiens_ so lone as the right and easement herein granted, or any one of them shall be used by, or useful to GRANTEE for the purposes herein granted and the provisions of this agreement are to be considered a covenant that runs with the land herein described and GRANTOR hereby binds themselves, their heirs, executors and administrators, and their successors and assigns to warrant and forever defend this right of way and easement unto the GRANTEE, its successors and assigns, against every person whomever lawfully claiming or to claim the same or any part thereof. The easement and rights herein granted may be transferred, leased or assigned, from time to time, in whole or in part. It is agreed that any payment due hereunder may be made direct to said GRANTOR or any one of them (if more than one). Section 1445 Certification — Under penalties of perjury, the undersigned Grantor(s) hereby certifies that it (they) is (are) not a non-resident alien, foreign corporation, foreign partnership, foreign trust or foreign estate for purposes of U.S. income taxation. EXECUTED as of this day '5 of 1Qf/'% / , 2008. Grantor: Juniper Group LLC By: )01-, -Q z, Donald G. Price, Manager Grantee: EnCana Oil & Gas (USA) Inc. By: ir------ T4) Ricardo D. Gallegos Attorney -in -Fact iI-- Notary page for Right -of -Way Easement dated this �fi day of April , 2008, by and between Donald G. Price, Manager of the Juniper Group LLC, and EnCana Oil & Gas (USA) ie. ACKNOWLEDGMENTS State of: New York ) ) § County of: Jefferson ) On this day of (�+u, Q 2008, before me personally appeared Donald G. Price, Manager of the Juniper Group LLC, known to be he person described in and who executed the foregoing instrument, and who acknowledged to me that He executed the same. SEAL My commission expires: Tall/ Ellzaeem Bach: Notary Public, State of New York Qualified in Jefferson County Commission Expires April 30,X h Notary Public: State of. Colorado City and County of Denver On thisday of 2008, before me personally appeared, Ricardo D. Gallegos, Attorney -in - Fact for nCana Oil & Gas ( S Inc., known to be the person described in and who executed the foregoing instrument, and who acknowledged to me that he executed the same. ) § SEAL My commission expires: 0 lo `...e OF GO - My Commission ExpireS 06123/2009 Notary Public: EXHIBIT "A" This Exhibit "A" is attached to and made a part of that certain Right of Way Easement by and between Juniper Group LLC, as Grantor and EnCana Gil & Gas (USA) Inc., as Grantee. i 1/4 Section Line N 1, & COLORADO N °naa F- t@ W ,_ W O r 7 -Ronin 6; 3 mini 6 3 aMN n55 % 1 o1' EXHIBIT A s�S32377"1,, 572138'56'X, 1583'47'8 7889' 12820' 10822' gopv7ly Line Ii 6 --- a hE IY0 tO N wz p nr Fl U ti a 8 j 3U)'IOIX W� $,; 0`0 67705 7i trig-- — IRK rmoe"ne (I0) MI qtq ST DRY HC COTTON ETAL SECT1ON 2, T: /25/08 IP cbz eIu- $ n V 0 Y —UC.r of frdlag Rad 10135W, 943.80' c o I An n ctto Oil- - i 00 ci- Sachin 38 \ \1' —9ranoge 33I'4S'S0 (!)p) d'S1 % n, "10 60004'02T 2627.42' :action 1 I!. INE v:SboN DRAWN BY: OJT DWN NZ a U W z F.:, Sullen 35 ^X,'.05 aGB Pa 71 —5�'e5'50'W, :0%.51' "—I 0 Section 2 i w m 04N NUp yqn 0 it Di p 11 0'yr. N to i o \N Ot i(1 CO MI 134 F F`o �� i u —$ • y50'431Y, 898.40 I bq =F lib 1st� `Ri 'bq o3u ` [^ is� X—__ 3 I 0 `` f Prpelty line p to o 0 q u , z 0 22 r“ -,Liz LENT: EnCana Oil & Gas 'nil Hz ) 4p �m (133dN) 00! i alit!.74—•u _ ._. _. .._ __ —— mtu22 "n 009 COC —_I 0 • €6" �7 JI �pvou —4 W i " ['o . S& EO ', IA n g ib Qt 24¢00 W Li J mW .0 4:4: W RIGHT-OF-WAY EASEMENT FOR AND IN CONSIDERATION of the sum of TEN AND NO/100 DOLLARS ($10.00) and other good and valuable consideration, in hand paid to MILLER LAND & CATTLE COMPANY (hereinafter referred to as GRANTOR, whether ane or more), the receipt and sufficiency of which is hereby acknowledged, whose mailing address is 7121 County Road 311, New Castle, CO 81647-9658, by EnCana Oil & Gas (USA) Inc., whose mailing address is 370 17th Street, Suite 1700, Denver, CO 80202 (hereinafter referred to as GRANTEE), GRANTOR hereby grants, sells, conveys and warrants to GRANTEE, its successors and assigns, a permanent easement, thirty (30) feet in width, for the purpose at any time and from time to time to lay, locate, constntct, maintain, inspect, alter, repair, operate, protect, change the size of, replace, relocate, mark, remove and/or abandon in place, one (1) or more pipeline(s) and appurtenances, equipment and facilities useful or incidental thereto, including, but not limited to, valves, metering and corrosion control equipment, and any above -ground appurtenances, as may be necessary or convenient, for the transportation of natural gas, petroleum, petroleum products and derivatives thereof and any other liquids, gases, or substances which can be transported through pipelines, upon and along a route to be selected by GRANTEE on, over, across and through lands owned by GRANTOR, or in which GRANTOR has an interest, situated in Garfield County, State of Colorado described as follows: Township 6 South, Range 92 West, 616 P.M. Section 36: SW/4 and being the same land described in that certain Deed, recorded in Book 851, Page 384, of the Clerk's office of said County, to which reference is made for further description. In addition to the thirty (30) feet permanent easement arca as defined above, GRANTOR grants to GRANTEE a temporary easement thirty (30) feet in width adjacent to the permanent easement, for the purpose of enabling GRANTEE to initially construct the pipeline. After the post -construction cleanup following the initial pipeline construction, the permanent easement area shall be limited to a strip thirty (30) feet wide as referenced above. fhe permanent easement, located on the above described lands is generally described on Exhibit A attached hereto and made a part hereof. Exhibit A attached hereto is not intended to show the final location of the easement or pipeline as actually constructed; the actual location of the easement will extend fifteen (15) feet on each side of the centerline of the pipeline as actually laid. GRANTOR further grants and conveys unto GRANTEE the right of unimpaired ingress and egress on, over, across and through the above-described lands including other lands owned, leased or claimed by GRANTOR which are adjacent thereto or contiguous therewith for all purposes necessary or incidental to the exercise of the rights herein granted, with the further right of entry to maintain the easement herein granted clear of trees, undergrowth, brush, stnictures, and any other items, to the extent GRANTEE deems necessary in the exercise of the rights granted herein. GRANTEE shall not be liable for damages caused by keeping said easement clear of trees, undergrowth, brush, structures, or any other obstructions. GRANTEE shall have the right to select, change, and/or alter the right-of-way easement through the property above described or alter the route prior to or during construction with the consent of the GRANTOR which will not be unreasonably withheld or delayed. GRANTOR shall have the right to use and enjoy the above-described premises; provided however, GRANTOR shall not exercise such use and enjoyment in a manner that will impair or interfere with the exercise by GRANTEE of any of the rights herein granted. GRANTOR agrees not to change the grade over the pipeline constructed hereunder and shall not build, create, construct, or permit to be built, created, or constructed, any obstruction, building, lake, engineering works, or any other type of structure over or on said easement. All equipment or appurtenances to the pipeline, which shall be on or above the surface of the ground, shall be installed in i manner to protect the GRANTOR'S livestock when necessary. GRANTEE agrees at the time of construction to bury said pipeline to such depth as will not interfere with lands under cultivation, and in accordance with applicable Federal and State regulations. Following installation of the pipeline, GRANTEE agrees to restore the ground as nearly as is practicable, to its condition prior to the installation of the pipeline and in accordance with Federal regulations. GRANTEE shall, at its sole expense, keep the lands subject to the easement granted herein free and clear of ail liens and encumbrances resulting from GRANTEE'S and its agents' activities on the said lands and shall indemnify and hold harmless GRANTOR from and against any and all liens, claims, demands, costs, and expenses, including, without limitation, attorneys' fees and court costs, in connection with or arising out of any work done, labor performed, or materials furnished with respect to or by GRANTEE and/or GRANTEE'S agent. TO HAVE AND TO HOLD unto GRANTEE, its successors and assigns, so long as the right and easement herein granted, or any one of them shall be used by, or useful to GRANTEE for the purposes herein granted and the provisions of this agreement are to he considered a covenant that rims with the land herein described and GRANTOR hereby binds themselves, their heirs, executors and administrators, and their successors and assigns to warrant and forever defend this right of way and easement unto the GRANTEE, its successors and assigns, against every person whomever lawfully claiming or to claim the same or any part thereof. The easement and rights herein granted may be transferred, leased or assigned, from dine to time, in whole or in part. It is agreed that any payment due hereunder may be made direct to said GRANTOR or any one of them (if more than one). Section 1445 Certification — Under penalties of perjury, the undersigned Grantor(s) hereby certifies that it (they) is (are) not a non-resident alien, foreign corporation, foreign partnership, foreign trust or foreign estate for purposes of U.S. income taxation. EXECUTED as of this day / of�Z 2008. Grantor: MILLER LAND & CATTLE COMPANY Grantee: EnCana Oil & Gas (USA) Inc. By: Ricardo D. Gallegos Attorney -in -Fact /J J Notary page for Right -of -Way Easement dated this day of /inti t , 2008, by and between Ruth Miller, President of the MILLER LAND & CATTLE COMPANY, and EnCana Oil & Gas (USA) Inc. State of: Colorado County of: Garfield ACKNOWLEDGMENTS 0 On this i6 day of AP; t , 2008, before me personally appeared Ruth Miller, President of the MILLER LAND & CATTLE COMPANY, known to be the person described in and who executed the foregoing instrument, and who acknowledged to me that He executed the same. SEAL My commission expires: 01.<1, fa( I Notary Public: State of. Colorado City and County of Denver ) § On this 2 2'``Uday of s/ / 2008, before me personally appeared, Ricardo D. Gallegos, Attorney -in - Fact for EnCana Oil & Gas (tl A Inc., known to be the person described in and who executed the foregoing instrument, and who acknowledged to me that he executed the same. SEAL My commission expires: k(?3/0°1 Notary Public: EXHIBIT "A" This Exhibit "A" is attached to and made a part of that certain Right of Way Easement by and between MILLER LAND & CATTLE LE COMPANY, as Grantor and EnCana Oil & Gas (USA) Inc., as Grantee. _. _... _.. __. 4, S�i�o J§9x DESCRIPTION: EAST DRY HOLLOW PHASE 2 EXHIBIT ACROSS MILLER LAND & CATTLE PROPER TV SECTION 36. TES. R92W. GARFIELD COUNTY. COLORADO GATE DRAWN: 3/25/08 1 PROJECT NUMBER: 07-04-11 15 F N 11.1-.. 1 n e o 7 n IS 'SI to !;_-..... �2 NO %Si,x.as 1 N m 1 1/ j 7 i \/ \' Q kg I O 3 cc p U V YE Y: �Ia WASATCH SURVEYING ASSOCIATES Hy l' t 506 MAIN STREET. EVANSTON. WY 82930 YY�---VRVevINo (307) 789-4545 SCALE: 1 n ( SEW M.ms�.us F Q 3W � y b 2 k J Oat VISION; I DRAWN ErnCJT AS SHOWN 0 ffffy 1W 11 ; O 11 0 aNO _¢q O P. p• J M7� C 4 A, O . C 4 2 c i x m0 Li 4 m 0 0 ' - w4 N m 0.\ . uENr: EnCana Oil 8c Gas 04 °0 a • •1, t 0 N ^ NW '0'4 W w'N L N N U4 3•ba hp (133M1,11) n I II I 0 , t b ' Nil 1 C U 4 Zu U'O izmt Y` J 04 0 0 m1zi ” 03 IA „" 1 Z aaa°4 0 9 St 0 0$ 8a � uaullE a I W W J _: Qodd tiff _' _ __ RIGHT-OF-WAY EASEMENT FOR AND IN CONSIDERATION of the sum of TEN AND NO/100 DOLLARS ($10.00) and other good and valuable consideration, in hand paid to HENRY J.C. SCHWARTZ and LINDA SCHWARTZ (hereinafter referred to as GRANTOR) and whose mailing address is 1114 Punahow Street Apt.1IA, Ilonolulu, HI 96826 and EnCana Oil & Gas (USA) Inc., whose mailing address is 370 17th Street, Suite 1700, Denver, CO 80202, (hereinafter referred to as GRANTEE), GRANTOR hereby grants, sells, conveys and warrants to GRANTEE, its successors and assigns, a permanent easement, thirty (30) feet in width, for the purpose at any time and from time to time to lay, locate and/or abandon in place, one (1) or more pipeline(s) and appurtenances, equipment and facilities useful or incidental thereto, including, but not limited to, valves, metering and corrosion control equipment, and any above -ground appurtenances, as may be necessary or convenient, for the transportation of natural gas, petroleum, petroleum products and derivatives thereof and any other liquids, gases, or substances which can be transported through pipelines, upon and along a route to be selected by GRANTEE on, over, across and through lands owned by GRANTOR, or in which GRANTOR has an interest, situated in Garfield County, State of Colorado described as follows: TOWNSHIP 7 SOUTII RANGE 92 WEST, 6TH P.M. Section 2: W%SE'/, S%2SW'% (East Dry Hollow 20" pipeline) i9 :i.l and being the same land described in that certain Deed, recorded in Book 955 , Page 677 of the Clerk's office of said County, to which reference is made for further description. In addition to the thirty (30) feet permanent easement area as defined above, GRANTOR grants to GRANTEE a temporary easement of thirty (30) feet in width adjacent to the permanent easement, for the purpose of enabling GRANTEE to initially construct the pipeline. After the post -construction cleanup following the initial pipeline construction, the permanent easement area shall be limited to a strip thirty (30) feet wide as referenced above. The permanent easement, located on the above described lands is generally described on Exhibit A attached hereto and made a part hereof. Exhibit A attached hereto is not intended to show the final location of the easement or pipeline as actually constructed; the actual location of the easement will extend fifteen (15) feet on each side of the centerline of the pipeline as actually laid. GRANTOR further grants and conveys unto GRANTEE the right of unimpaired ingress and egress on, over, across and through the above-described lands including other lands owned, leased or claimed by GRANTOR which are adjacent thereto or contiguous therewith for all purposes necessary or incidental to the exercise of the rights herein granted, with the further right of entry to maintain the easement herein granted clear of trees, undergrowth, brush, structures, and any other items, to the extent GRANTEE deems necessary in the exercise of the rights granted herein. GRANTEE shall not be liable for damages caused by keeping said easement clear of trees, undergrowth, brush, structures, or any other obstructions. GRANTOR shall have the right to use and enjoy the above-described premises; provided however, GRANTOR shall not exercise such use and enjoyment in a manner that will impair or interfere with the exercise by GRANTEE of any of the rights herein granted. GRANTOR agrees not to change the grade over the pipeline constructed hereunder and shall not build, create, construct, or permit to be built, created, or constructed, any obstruction, building, lake, engineering works, or any other type of structure over or on said easement. Notary page for Right -of -Way Easement dated this /s day of - / yrJR L- , 2008, by and between Henry J.C. Schwartz and Linda Schwartz and EnCana Oil & Gas (USA) Inc. ACKNOWLEDGMENTS State of: Hawaii ) )§ County of: Honolulu si On this t ' day of /1/.,,- . 1 , 2008, before me personally appeared Henry J.C. Schwartz. and Linda Schwartz, known tote the persons described in and who executed the foregoing instrument, and who ticitkiwil4eAlo the that they executed the same. :siAt' • lYly c'otr7ni`s�S"roti exjiires: i=1/ t z t 0 Notaiy Public:L— State of: Colorado City and County of Denver On this day of , 2008, before me personally appeared Ricardo D. Gallegos. Attorney -in -Fact for EnCana Oil & Gas (USA) Inc., known to be the person described in and who executed the foregoing instrument, and who acknowledged to me that he executed the same. SEAL My commission expires: Notary Public: LEGAL DESCRIPTION A pipeline right-of-way located in the W1/2 SE1/4 and the 61/2 SW1/4 of Section 2, T7S, R92W, 60 P.M., Garfield County, Colorado. the centerline of said right-of-way being more particularly described as follows: Commencing at the Northeast corner of said Section 2 and running thence S 81'41101" W, 1418.79 feet to the POINT OF BEGINNING (the base bearing for this survey being S 89"43'59" W, 263926 feet between found monuments at the Northeast comer and the North One -Quarter comer of said Section 2); (hence $ 00°50'27" E 238.51 feet; thence S 00°16'02" E, 1366.53 feet; thence S 18°28'26" W, 45.57 feet; thence S 56°1546" W, 41.41 feet thence S 89'12'58' W, 219.14 feet; thence N 89'3242" W, 201.64 feet; thence S 79'46'05" W, 396.41 feet; thence S 12°46154' W, 99.32 feet; thence S 1749'01" W, 189.27 feet; thence $ 78°31'12' W, 155.71 feet; thence S 80`30'38" W. 104.86 feet; thence S 85°2327' W, 467.62 feet; thence S 8027'18" W 65.16 feet; (hence S 77°58'49' W, 100.92 feet; thence S 36°2310"W, 50.93 feet; thence 5 64'03'46"W, 89.23 feet; (hence 5 50°0125" W, 77.90 feet; thence S 39°29'16"W, 47.18 feet; (hence S 21°51'30" W, 121.29 feet; thence S 31°39'02" W, 47.75 feet; thence S 46'56'13" W, 75.82 feet; thence 5 52°21'10"W, 77.51 feet thence S 55'40'48"W, 180.85 feet to the POINT OF ENDING, sald point tying an the south line of said Section 2, N 89°43'08' E, 1509.78 feet from the Southwest comer of said Section 2. Said centerline being 4440.52 feel in fength. RIGHT-OF-WAY LENGTHS PROPERTY OWNER SCHWARTZ SECTION Sec. 2, f7S R92W I FEET TOTAL 4440.52 4440,52 rota! 4440.52 BASIS OF BEARING The base bearing for this survey is S 89°43'59" W, 2639.26 feet between found monuments at the Northeast Comer and the North One -Quarter Corner of Section 2, T7S, R92W. CERTIFICATE OF SURVEYOR I, Ted Taggart of Fruita, Colorado hereby certify that this map was made from notes taken during an actual survey made by me or under my direction for EnCana Oil & Gas (USA) Inc. and that the results of which are correctly shown hereon. FROM TO RIGHT-OF-WAY LIMITS BOX Reference Paints .__.. r, __ ... J I d ��Permanent � Fer:rrn or�nt . Additional Temporary `.York Right -of -Way 1 Right -of -Way Temporary Nark Spore Left i Left Right Space itight 2.5' 12.5' 12.5'• 47.5' LiEd 9: EnCana Oil and Gas (USA) Inc. DESCRIEilor;: EAST DRY HOLLOW PHASE 2 EXHIBIT ACROSS SCH:':AR IL °ROPER'" SEC(ION 2, T7S, R92W. GARFIELD Cilli; f Y, CUR. LALE AS SHOWN URWlN) N'!: r [sin DRAWN DY: :Ai DATE ci1A;'Jr 3/28/08 6JLCT NUMBER. (; ; -- 04 - 1 I .i ATCH SURVEYING \'Arch SURVEYING ASSOCIATES 90" 4 IU STRFE 9, E'VANSTONI, V:r 32930 ;,9rf 7P,i-4545 EXHIBIT A St 2 of MEMORANDIIM OF PIPELINE CORRIDOR AGREEMENT WHEREAS effective August 14, 2008 ("Effective Date"), Torrance A. Eubanks, ("Eubanks"), whose address is 5562 Olde Stage Rd, Boulder, CO 80302 and EnCana Oil & Gas (USA) Inc., whose address is 370 17t1i Street, Suite 1700, Denver, CO 80202 ("EnCana"), entered into a Pipeline Corridor Agreement ("Agreement") covering the below described lands in Garfield County, Colorado. A parcel of land located in Section 11, Township 7 South, Range 92 West, as more particularly described and set out on the plat attached hereto as Exhibit A (the "Pipeline Corridor"). WHEREAS said Agreement provides for, among other things, the following provisions: 1. The Agreement is effective from August 14, 2008, for a term of ninety-nine (99) years, ending on August 14, 2107 (the "Term"). Eubanks, for and in consideration of the sum of $10.00=and other good and valuable consideration, the receipt and sufficiency of which is hereby acknowledged; does hereby lease and let the Pipeline Corridor unto EnCana subject to certain terms and provisionsset forth in the Agreement. EnCana's right to use and occupy the Pipeline'Con'idor for the installation, operation, maintenance, replacement, upgrade, repair and retnoval of two existing pipelines in the Pipeline Corridor as well as two additional pipelines to be installed in the Pipeline Corridor, for a total of four (4) pipelines for the transportation of (a) water, and/or (b) natural gas, natural gas liquids and any of their constituents (collectively, the "Pipelines"). Eubanks hereby grants, assigns and conveys; to EnCana the exclusive right to lay, locate, construct, maintain, inspect, operate, replace, upgrade, repair and remove and/or abandon in place within the Pipeline Corridor the Pipelines, together with the right and privilege to enter Eubanks' Property to access the Pipeline Corridor. The Pipeline Corridor shall be thirty feet (30') in width. In addition to the thirty (30) foot Pipeline Corridor as shown on Exhibit A, Eubanks grants to EnCana an additional thirty-five foot (35') construction corridor, as depicted on Exhibit A, for the purpose of enabling EnCana to construct the Pipelines. After the post construction cleanup of the Pipelines, the. Pipeline Corridor shall be limited to a strip thirty (30) feet wide as referenced above. The Agreement, with all of its terms, conditions, covenants and other provisions, is referred to and incorporated into this \+lemorandum for all purposes. NOW THEREFORE this Memorandum' is placed of record for the purpose of giving notice of the Agreement. 7cnomnclwn iNS'urrtt leas1 of IN WITNESS WHEREOF, the Parties have executed this Memorandum of Pipeline Corridor Agreement as of the Effective Date. 1'fRRANCE A. EUBANKS: p By. James R. ibanks, Attorney -in -Fact ENCANA_OIL& CAS (USA) INC. By: Ricardo D. Gallegos, Attorney -in -Fact STATE OF COLORADO ) ) CITY AND COUNTY OF DENVER) The foregoing instrument was acknowledged before nie this day of , 2008, by Ricardo D Gallegos, Attorney-in-fact for EnCana Oil & Gas (USA) Inc. IN WITNESS WHEREOF 1 have hereunto set my hand and affixed my notary seal the day and year above written. My Commission Expires: STATE OF COLORADO COUNTY OF Garfield ) )) Notary Public in and for The State of Colorado The foregoing instrument was acknowledged before me this day of 2008. by James R. Eubanks, Attorney -in -Fact on behalf of Torrance A. Eubanks_ IN WITNESS WHEREOF I have hereunto set my hand and affixed my notary seal the day and year above written. My Commission Expires: Xlemonniii SI 1r lr on Notary Public in and for The State of Colorado "5 IN f CA' s`a"ua �TwutitifACTUAL tO/Irf) rraU' RGN2R:: 4K porta Of ENCplo GEARS 5 Oran' E. 98413 HET FROM INE NCRIN1wSr C onto or SEc>tN 11. Section 2 N89'4308'E,2630.88' Section 1 (1509.78', P.aS Edge or 35.JNdo d Construction Easement \ Permanent Easement 0)0—f P.O;E. 12—...\ Point A P' Existing Potties-1ne ONnft: ENCANA It Owner: EUBANKS toOITH b,Lz ,t CALEMATCO Permanent Easement (typ) Evisting r2" Pipeline Centerline of Proposed Pipeline ling Fenceline LEGEND Qj PUSLN; LAND SURVEY CORNER o ANGLE POINT 9.0. a PCN T GF BEGIPIN/NC ?.D.E. P01(1 GF ENDING CUE EnCana Oil & Gas (USA) Inc. DE=.GRIP P,Ot EAST DRY HOLLOW PHASE 2 EXHIBIT ACROSS EUBANKS PROPERTY SECTION 11. TTS. R924't, GARFIELD COUNTY, CC'LOfAOO SCALE: RENIS AS SHOWN L. DRAWN BY: C. YASSTCIt SU.VEY;NG ASSOCiAILS 906 4'.6'1 STREET. _ ..'5102. ^!'t 62930 3(37) 729-1545 21/2 /08 PROJECrNUMBER: j7—01--115 EXHIBIT A SHEET r UNE TAKE LNE CiRECTION 1 LENGTi _ LI__ L2 __556'27.20'V. N8932'04'W _,_264.36 313.76 Section 2 N89'4308'E,2630.88' Section 1 (1509.78', P.aS Edge or 35.JNdo d Construction Easement \ Permanent Easement 0)0—f P.O;E. 12—...\ Point A P' Existing Potties-1ne ONnft: ENCANA It Owner: EUBANKS toOITH b,Lz ,t CALEMATCO Permanent Easement (typ) Evisting r2" Pipeline Centerline of Proposed Pipeline ling Fenceline LEGEND Qj PUSLN; LAND SURVEY CORNER o ANGLE POINT 9.0. a PCN T GF BEGIPIN/NC ?.D.E. P01(1 GF ENDING CUE EnCana Oil & Gas (USA) Inc. DE=.GRIP P,Ot EAST DRY HOLLOW PHASE 2 EXHIBIT ACROSS EUBANKS PROPERTY SECTION 11. TTS. R924't, GARFIELD COUNTY, CC'LOfAOO SCALE: RENIS AS SHOWN L. DRAWN BY: C. YASSTCIt SU.VEY;NG ASSOCiAILS 906 4'.6'1 STREET. _ ..'5102. ^!'t 62930 3(37) 729-1545 21/2 /08 PROJECrNUMBER: j7—01--115 EXHIBIT A SHEET r LEGA. DESCRIPTION A pipeline right-of-way located in the N1/2 NW1/4 ofSecticn 11, 17S, R92W, 6th P.M., Garfield County, Colored°, the centerline of said tight -of -way Delrg more particularly described as follows. Commencing at the Northwest corner of said Section 11 and running thence N 89'43'08".E, 1509.78 feel along the North line thereof to the POINT OF BEGINNING thence S 5642720' W, 264.36 feet; thence N 89°32'04"W, 313.76 feet to the POINT OF ENDING, said point lying on the westerly line of Eubanks property, S 82°0328"E, 985.13 feet from Me Northwest tamer of said Section 11. Said centerline being 578.12 feet in length. RIGHT-OF-WAY LENGTHS PROPERTY OWNER SECTION ' FEET . TOTAL EUBANKS, L L Sec. 11, T7S R92W 578.12 578.12 Total 576.12 BASIS OF OFARING The base bearing for this survey is N 89°43'08" E, 2630.88 feet between the. Northwest Corner and Me North One -Quarter Corner of Section 11, T7S, R92W- CERTIFICATE OF SURVEYOR I, Ted Taggart of Rub, Colorado hereby certify that this map was made from notes taken during an actual survey made by me or under my direction for EnCana Oil & Gas (USA) inc. and that the results of which are correctly shown hereon. RIGHT-OF-WAY LIMITS BOX FROM TO Reference Feints Additional Pernavie .at Permanent Additional Temporary Work. Right of 'Ncy Right -of -Way !Temporary Work Spode Left Left Riga: i Space Right 0 20. 10' j 35' C.:d i r p OE, 0 25' 35' CLI EnCana Oil and Gas (USA) Inc. CESCRIPTI EAST DRY HOLLOW PHASE 2 EXHIBIT ACROSS EU©ANKS PROPERTY SECTION ti, PS, R92sV, GARFIELD COUNTY, COLORAL1L FSCrli. AS SHOWN RELASI'0?:: DRAWN 81% Crh DATE DRAR 8/21/08 1 PRDiECT NOI:HERi 07-04-113 U mai WASAiCH SURVEYING ASSOCi.4TES 206 MAID. STREET. EVAPSTCN. :,. 82030 SURVEYING_ (3n1) 454@ EXHIBIT A SHEE. Report on the Class I Cultural Resource Inventory for a Sensitive Area Study on Private Lands for the Proposed East Dry Hollow Loop Phase 2 in Garfield County, Colorado, for EnCana Oil and Gas (USA) Inc. GRI Project No. 2840 11 June 2008 Prepared by Carl E. Conner (Principal Investigator) and Barbara Davenport Grand River Institute P.O. Box 3543 Grand Junction, Colorado 81502 State of Colorado Antiquities Permit No. 2008-63 Submitted to Board of County Commissioners Garfield County, Colorado Abstract At the request of EnCana Oil and Gas (USA) Inc., Grand River Institute conducted a Class I cultural resources inventory for a Sensitive Area Study in relation to an anticipated Special Use Permit Application with Garfield County for the proposed East Dry Hollow Loop Phase 1 pipeline project. The study is for a linear route of 3.9 miles and is located in the Dry Hollow and West Divide Creeks area about 5.0 miles south of Silt, Colorado. The Class 1 inventory was undertaken to ensure the project's compliance with county, state, and federal laws and regulations governing the identification and protection of cultural resources on privately owned lands that will be affected by a government action. This work was performed under State of Colorado Antiquities Permit No. 2008-63. The purpose of the cultural resources investigation was to identify previously recorded resources within or near the project area that may be adversely affected by the proposed action and to evaluate the potential of additional such resources in the project arca. The Class I files search and report preparation were performed during the first two weeks of June 2008. Although sites occur near the project area, none have been recorded within 300 meters of the proposed pipeline. Accordingly, a determination of "no effect" for the project is recommended pursuant to Section 106 of the National Historic Preservation Act (36 CFR 800). Table of Contents Introduction 1 Location of the Project Area 1 Environment 1 Paleoclimate 3 Files Search Results 4 Archaeological Assessment of Cultural Resources 6 Relevant Historical Background post -1880 R Summary and Recommendations 9 References 11 List of Figures and Tables Figure 1. Project location map 2 Table 1. List of projects previously conducted near the study area 4 Table 2. List of previously recorded cultural resources near the study area 5 iii Introduction At the request of EnCana Oil and Gas (USA) Inc., Grand River Institute conducted a Class 1 cultural resources inventory for a Sensitive Area Study in relation to an anticipated Special Use Permit Application with Garfield County for the proposed East Dry Hollow Loop Phase I pipeline project. The linear route of 3.9 miles is located on private land in the Dry Ilollow and West Divide Creeks area. This work was performed under State of Colorado Antiquities Permit No. 2008-62. Carl E. Conner, Principal Investigator, was assisted by archaeologist Barbara J. Davenport. The Class I files search and report preparation were performed during the first two weeks of June 2008. The Class 1 inventory was undertaken to ensure the project's compliance with state and federal legislation goveming the identification and protection of cultural resources on privately owned lands that will be affected by a government action. It was done to meet requirements of the National Historic Preservation Act (as amended in 1992), the National Environmental Policy Act 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 (16 U.S.C. 470aa et seq. as amended), and Article 80.1, Colorado Revised Statutes. These laws are concerned with the identification, evaluation, and protection of fragile, non-renewable evidence 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. All work was performed according to guidelines set forth by the Office of Archaeology and Historic Preservation (OAHP) of the Colorado Historical Society. Location of the Project Area The study area is located approximately 5.0 miles south of Silt, Colorado. It lies in T. 6 S., R. 92 W., Sections 35 and 36; T. 7 S., R. 92 W., Sections 1, 2, 3, 4, 10 and 11; 6ih P.M. (Figure 1). Environment The project area 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 arca. 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. 1 271000 272000 1 1 ll 273000 274000 275000 s\ •74, Composite Quadrangle Maps Gibson Gulch and Hunter Mesa (1963/1987) Garfield County - Colorado U.S.G.S. 7.5' Series (topographic) Scale 1:24000 Contour Interval 40 Feet T. 6 S. and T. 7 S., R. 92 W., 6th P.M. Zone 13 NAD 1983 'k V:49• 1 •',,/i; ,1 \ V / East Dry Hollow Loop Phase 2 Pipeline /,r •/ • i Private /.-I 13LM'1 '; Land " I .'Land' .1 1 ,�1 East Dry Hollow Loop Phase 1 Pipeline • 1/4 1 1 1 1 1 271000 272000 273000 274000 275000 Class I files search for the proposed East Dry Hollow Loop Phase 2 pipeline route in Garfield County for EnCana Oil and Gas (USA). The proposed route is indicated. [GRI #2840, 6/11/08] 2 Sediments are stream, floodplain, and swamp deposits. In the west 1.0 mile portion of the study area, Quaternary gravel deposits overlay the Wasatch formation. The project area rests on the benchland south of the Colorado River on the gently sloping ridges that border Dry Hollow and West Divide Creeks. Elevations average about 6000 feet. This relatively low elevation is host to a cool semiarid climate where temperatures can drop to - 10 degrees F during the winter and summer temperatures may reach 100 degrees F; there is a maximum of 120 frost free days and the annual precipitation is about 12 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 1978:244). There are several generalized vegetation communities in the area including riparian along the creeks, big sage and saltbush shrubland in the valley bottoms, and juniper/oak woodland on the surrounding mountain slopes. However, the prehistoric streamflow and habitats along Dry Hollow and West Divide Creeks have been significantly altered by historic EuroAmerican water diversions, reservoirs, and irrigation of agricultural fields. The valley bottoms have also changed due to infringement by pipelines, gravel operations, roadways and bridges. Ranchers currently use the area primarily for livestock grazing. Ground visibility ranges from 20% in the relatively recently undisturbed areas to about 90% in the cultivated fields and along the roads. These communities support a variety of wildlife species. Mule deer, elk, coyote, and black bear are common, as are cottontail rabbits, and various rodents. Mountain lion, bobcat, fox, skunk, badger, and weasel are also likely inhabitants. Bird species observed in the area include the wild turkey, jay, raven, red -shafted flicker, long-eared owl, and various raptors. Although the present day land use of the project area (including energy development, grazing, ranching and farming) has pushed some of the large mammals into the surrounding mountains, deer and wild turkeys make heavy use of the cultivated fields during the months of colder temperatures. Also, the creek contains several beaver ponds and wetlands that are supported primarily from snowmelt, groundwater, springs, and irrigation runoff. Paleoclimate Relatively small changes in past climatic conditions altered the exploitative potential of an area and put stress upon aboriginal cultures by requiring adjustments in their subsistence patterns. Therefore, reconstruction of paleoenvironmental conditions is essential to the understanding of population movement and cultural change in prehistoric times (Euler et al. 1979). To interpret whatever changes are seen in the archaeological record, an account of fluctuations in past climatic conditions must be available or inferences must be made from studies done in surrounding area. Generally, only gross climatic trends have been established for westem North America prior to 2000 BP (Antevs 1955; Berry and Berry 1986; Mehringer 1967; Madsen 1982; Wendhmd and Bryson 1974; Peterson 1981). Scientific data derived from 3 investigations of prehistoric cultures and geoclimatie and bioclimatic conditions on the southern Colorado Plateau over the past two millennia have achieved a much greater degree of resolution (Dean et al. 1985). Files Search Results Cultural resource investigations in the region have yielded surface diagnostic artifacts and excavated cultural materials consistent with the regional cultural history. Evidence provided by chronometric diagnostic artifacts and radiocarbon analyses indicate regional occupation during the Paleoindian Era, Archaic Era, Formative Era, and Protohistoric Era. Historic records suggest occupation or use of the region by EuroAmerican trappers, settlers, miners, and ranchers as well. Overviews of the prehistory and history of the region are provided in documents published by the Colorado Council of Professional Archaeologists' entitled Colorado Prehistory: A Context for the Northern Colorado Plateau (Reed and Metcalf I999), and by the Colorado Historical Society entitled Colorado Plateau Country Historic Context (Husband 1984). A file search for known cultural resources within the project area was made through the Colorado Historical Society's Office of Archaeology and Historic Preservation. This review identified seven reports that have been done in the general area, which are listed in Table 1. Table 1. List of projects previously conducted within about 1.0 mile of the study area. Project 11 Title/ Author/ Date/ Contractor MC.R.NR24 Title: Paleontological Resources Evaluation: West Divide Project Author: Sloan, Robert E., Joseph I1. Hartman, Laurie J. Dempsey, Martha E. Jordan, and Eddie B. Robertson Date: 03/01/1980 Contractor: Robertson Research, Inc. for the Bureau of Reclamation, Upper Colorado Region GP.LM.NR143 Title: Arkta Exploration of Federal 1-10 Well and Access Author: Borchelt, Tim Date: 07/30/1980 Contractor: Powers Elevation for Arkla Exploration And the Bureau of Land Management GF.LM.NR526 Title: Gibson Gulch Firewood Sale (S#794) Author: Williams, Paul R. Date: 04/26/1982 Contractor: Bureau of Land Management Glenwood Springs 4 Project # Title/ Author/ Date/ Contractor GF.CH.H Title: County Road 109 Hardwick Bridge Author Unknown Date: 10/01/1983 Contractor: Colorado Dept of Highways -Hist MC.LM.R16 Title: A Cultural Resource Inventory of Northern Geophysical Seismic Explorations near Battlement Mesa, Mesa and Garfield Counties, Colorado (S#1092) Author: Metcalf, Michael D. Date: 10/01/1989 Contractor: Metcalf Archaeological Consultants, Inc. for Northern Geophysical Seismic Explorations Inc. GF.LM.NR451 Title: Snyder Federal HMU 5-16 Well Project, Garfield County, Colorado, Class III Cultural Resource Inventory Author: Metcalf, Sally J. Date: 09/16/1996 Contractor: Metcalf Archaeological Consultants, Inc. for Snyder Oil Corporation GF.LM.R276 Title: KLT Gas, Inc., Castle Springs 2004/2005 Geographic Area Plan Class 111 Cultural Resource Inventory Garfield County, Colorado Addendum: A Proposed Pipeline Realignment and Relocation of Pad C Author: McDonald, Kac Date: 12/01/2003 Contractor: Kae McDonald, Ph.d. Consulting Archaeologist for KLT Gas, Inc. The files search identified three sites that occur within about one mile of the study area (Table 2). The nearest recorded site (5GF261) is 0.4 mile from the proposed pipeline. Table 2. List of previously recorded sites within about 1.0 mile of the project area. Site ID Site Type Assessment 50F.239 Historic Dugout Needs Data - Field 5GF.261 Open Camp Needs Data- Field 5GF.304 Rock Art Eligible - Field 5 Archaeological Assessment of Cultural Resources along the North Edge of Grand Mesa Previous archaeological studies in the general vicinity have suggested regional occupation for as long as 8000 years, although recently an inventory of block units east of this study area within the Doghead 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. Historic records also indicate a permanent Euro - American presence in the region began as early as the late 1880's. Notably, the prehistoric sites in the river corridor have been impacted by the 130 year occupation and use of the area by EuroAmericans. Notably, many of the newly and previously recorded resources in the general area indicate it was intensively occupied during the Protohistoric Em. 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. In general, although the study area was probably not continuously occupied prehistorically, it seems to have offered an attractive environment for gathering, floral processing, hunting, as well as lithic procurement and processing. Site density in the surrounding mesa areas is high, probably due to two factors: good access to permanent water, and strategic topographical positioning on the ridge tops and open benches. Such camp placement provided a good view of the surrounding lower elevations for purposes of hunting and protection. The heavily vegetated canyon bottoms were accessed for reasons of acquiring water and for the procurement of floral and faunal resources. The apparent differences in the characteristics of the upland and lowland sites may be due to factors other than cultural selection. The lowland sites are subjected to more artifact collecting than the uplands, and the areas along the Colorado River have been subject to few cultural resource surveys. The upland area exhibits a very thick vegetation cover that may be limiting discovery of features and additional artifacts. Lowland sites exhibit greater variability in site types. While the uplands are limited to isolated finds, open camps, and lithic scatters; the lowlands contain these site types and open architectural sites, sheltered sites, and a single tool stone procurement area. The lowland sites contain higher frequencies of cultural features or evidence of features. These features include fire -cracked rock scatters, charcoal stains, hearths, stone structures, and wickiups. All of the prehistoric sites contain low numbers of artifacts, including very limited numbers of debitage, bifacial tools and expedient tools. This suggests conservation, curation, and reuse of flaked stone tools in an area where tool material sources are limited. Lowland sites tend to be situated in the pinyon juniper vegetation community in greater frequencies than is suggested by the relative proportion of the pinyon juniper to other vegetation communities. The sites in the uplands are distributed proportionally to the size of the vegetation 6 communities, with the mountain shrub and sagebrush communities exhibiting the highest site density. 'I oo little is known of the age of the sites to make any definitive statements. The distribution of site ages based on projectile points and ceramics is generally the same as portrayed in Reed and Metcalf (1999), but the lack of absolute dating precludes any conclusions in this area. Lithic scatters exhibit a smaller site size than open camps in both the lowland and upland settings. Isolated finds are distributed across a wider range of slopes than lithic scatters or open camps. The differences in the type and distribution of historic sites are: Sites in the uplands are limited to sheep and cattle raising activities and arc primarily post -1889. Sites in the uplands are distributed proportionally to the size of the vegetation communities, with the mountain shrub and sagebrush communities exhibiting the highest site density. Sites in the lowlands display a greater diversity in types and are found mainly in the pinyon juniper and sagebrush zones. The historic sites in the lowlands are concentrated near transportation corridors and near permanent water sources, particularly the habitation sites. Sites indicative of particular economic activities are spread across the landscape. During 1980, the BLM 's Glenwood Springs Resource Area was subject to an archaeological survey that randomly sampled three percent of its managed lands. A total of 17,400 acres was surveyed for cultural resources. As a result, 58 prehistoric sites and 2 historic sites were recorded, an average of about 2 sites per section (.0034/acre). Three types of prehistoric sites were distinguished by the study; limited activity areas, short-term camps, and large habitation sites. These were classified on the basis of site size and the diversity of artifacts/activities represented. Notably, the sites were unevenly distributed and varied by vegetation community. The highest site density, about 5.0 sites/section (.0078/acre), occurred in pinyon/juniper and sagebrush communities. Concurrently, the greatest number of sites located during the survey tended to occur in or near the pinyon/juniper community. Other environmental factors found to be important during the statistical analysis of the settlement patterns included 1) vertical distance between the site and the primary water source is a greater controlling factor that the horizontal distance, 2) sites tend to be near or on points of vantage, 3) sites tend to be located in forested areas, preferably with a southern exposure and, 4) sites tend to occur on flat ground (less than 40% grade) in areas of relatively low surface relief (Burgess et al. 1980:108-120, 138- 139). In general, the region exhibits a relatively low site density and sites tend to cluster near permanent water sources. Relevant Historical Background post -1880 The the people occupied Targe areas of Western Colorado until about 1881. Due to the White River Ute's discontent that lead to the "Meeker Massacre," as the incident became know, a congressional investigation lead to the Treaty of 1880 that stipulated the removal of the White River bands to the Uintah Reservation in northeastern Utah. The Uncompahgre band was to be 7 given a small reservation in the vicinity of the confluence of the Colorado and Gunnison Rivers. Aware of the value of these agricultural lands, however, the commission charged with enforcing the terms of the treaty, under the direction of Otto Mears, manipulated the location process using a loophole in the treaty language, and the Uncompahgres were given lands in Utah near the Uintah Reservation. The Southern Ute bands were left on the small reservation in southwestern Colorado that had been given them by the Treaty of 1873. On 1 September 1881, the last of the Utes were moved to their new reservations in Utah, and western Colorado was completely opened to the whitcs. Interest in the potential agricultural lands of western Colorado (namely the Uncompahgre, Gunnison, Colorado, Dolores, San Miguel, White, and La Plata 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, townsites were chosen, and railroad routes were surveyed (Haskell 1886, Borland 1952, Rait 1932). However, because the former reservation lands were not officially declared public lands until August 1882, the first year of settlement activity was marked by a degree of uncertainty regarding the legality of land claims. When finally announced, the 1882 declaration did not allow home -stead entries on the newly opened lands, but only pre-emptions, or cash entries, at the rate of $1.25 per acre for agricultural land, $5.00 per acre for mineral land (Borland 1952:75). By 1895, the major portion of the land along Mamm Creek had been claimed, mostly under Cash Entry patents. The settlers raised their own food and availed themselves of the plentiful game in the area. Gardens, hay fields, and orchards were planted, and irrigation ditches were dug to divert the creek's water to cultivated fields. Large herds of cattle and sheep were accumulating, grazing the valley floor and the vast open range above, driven to the uplands via trails leading up the various gulches. Because the area was still fairly remote, competition for lands had not yet begun. Travel in and out of the Rifle area was restricted to horse and/or wagon. There were several well-developed Ute trails, and in the early 1880s, the federal government had built the aforementioned road between the White and Grand Valleys. In 1885 a toll road opened along the Grand River between Rifle and Grand Junction; prior to the building of this road through DeBeque Canyon, the route to Grand Junction had been a two-week journey "through the Cedar Hills, up Kimball Creek...down the "Sawtooth Range to Fruita and then back to Grand Junction" (Murray 1973:5). But, despite this network of trails and roads, Parachute remained pretty much isolated. With the coming of the D&RG railroad in 1890, however, new pressures were brought to the area. More and more settlers arrived, competing not only for arable land but also for grazing privileges on the unpatented public domain of the surrounding uplands. Increasing numbers of 8 cattle and sheep were imported, some being run as commission cattle for outside investors (ibid:84). Open warfare between cattle and sheep ranchers ensued, resulting in the slaughter of thousands of animals. Four thousand sheep belonging to Messrs. Starkey and Charlie Brown were killed by masked men who tried to drive the animals over cliffs at the head of a Clear Creek tributary and above the Granlee Schoolhouse (LaPoint et al. 1981:3-51). Another 4000 sheep belonging to J.B. Hurlburt were driven to their deaths above Ben Good Creek, a tributary of East Fork. The animosity between cattlemen and sheepmen continued into the 1900s. Finally, Congress passed the Taylor Grazing Act in 1934, bringing to an end to the free range by providing for regulated grazing and an end to the Sheep -Cattle Wars. Cash Entry, Desert Land, and Homestead patents continued to be granted into the 1920s and 30s. Ranching and farming were still the most important economic activities in the Parachute area and remained so until the 1960s and 1970s when many of the farms and ranches of the region were bought up by large companies interested in the large-scale extraction of oil shale and natural gas. Summary and Recommendations The National Historic Preservation Act of 1966 (NI -IPA) directs that federal agencies protect cultural resources that possess significant values. Significance is a quality of cultural resource properties that qualifies them for inclusion in the NRI -IP. The statements of significance included in this report are field assessments that support management recommendations to the State Historic Preservation Officer (SHPO). The final determination of site significance is made by the controlling agency in consultation with the SHPO. The Code of Federal Regulations was used as a guide for 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 60.6 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 pattems of history; or b) that are associated with the lives of persons significant in our past; or e) 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 individual distinction; or d) that have yielded, or may be likely to yield, information important in the prehistory or history. 9 The eligibility determination and consultation process is guided by Section 106 of the NI -IPA (36 CFR 60, 63, and 800). Final determinations of National Register eligibility and effect are made by the controlling agencies in consultation with the State Historic Preservation Officer. The Class 1 files search and report preparation were performed during the first two weeks of June 2008. Although sites occur in the general area, none have been recorded within 0.4 mile of the proposed pipeline. Accordingly, a determination of"no effect" for the project is recommended pursuant to Section 106 of the National Historic Preservation Act (36 CFR 800). 10 References Antevs, E. 1955 Geologic -climate dating in the west. American Antiquity 20:317-355. Borland, Lois 1952 Ho for the reservation; settlement of the Western Slope. Colorado Magazine 29(1):56-75. Berry, Claudia F. and Michael S. Berry 1986 Chronological and Conceptual Models of the Southwestern Archaic. In: Anthropology of the Desert West, ed. by Carol J. Condie and Don D. Fowler, pp. 253-327. University of Utah Anthropological Papers No. 110. Salt Lake City. Burgess, Robert J.; Kenneth L. Kvamme; Paul R. Nickens, Alan D. Reed; and Gordon C. Tucker 1980 Class II cultural resource inventory report of the Glenwood Springs Resource Area, Grand Junction District, Colorado. Ms on file, Bureau of Land Management, Grand Junction. Conner, Carl E., James C. Miller and Nicole Darnell 2006 Class IIl (intensive) cultural resource inventory of three block acreages within the South Parachute Geographic Area Plan (GAP) domain in Garfield County, Colorado, for Williams Production RMT. Ms on file, Bureau of Land Management, Glenwood Springs Field Office. Dean, Jeffery S.; R. C. Euler; G. J. Gumerman; F. Plog; R. H. Hevly; and T. N.V. Karlstrom 1985 Human behavior, demography and paleoenvironment on the Colorado Plateau. American Antiquity 50(3):537-554. Euler, Robert C.; G. J. Gumerman; Thor N.V. Karlstrom; J, S. Dean; and Richard H. Hevly 1979 The Colorado Plateaus: Cultural dynamics and paleoenvironment. Science 205(4411):1089-1101. Haskell, Charles W. 1886 History and Description of Mesa County, Colorado. Edited and published by the Mesa County Democrat, Grand Junction. Husband, Michael B. 1984 Colorado Plateau Country Historic Context. Colorado Historical Society, Denver. 11 LaPoint, Halcyon, Brian Aivazian, and Sherry Smith 1981 Cultural resources inventory baseline report for the Clear Creek Property, Garfield County, Colorado, Volume I. Laboratory of Public Archaeology, Colorado State University, Fort Collins. Madsen, David B. 1982 Great Basin paleoenvironments: summary and integration. In:Mand and Environment in the Great Basin, D.B. Madsen and J.F. O'Connell, editors. Society of American Archaeology Papers No. 2, pp.102-104. Washington, D.C. Mehringcr, Peter J. 1967 Pollen analysis and the alluvial chronology. The Kiva 32:96-101. Murray, Erlene D. 1973 Lest We Forget—A Short History of Early Grand Valley, Colorado, Originally called Parachute, Colorado. Quahada, Inc., Grand Junction. Peterson, Kenneth P. 1981 10,000 years of change reconstructed from fossil pollen, La Plata Mountains, southwestern Colorado. Unpublished Ph.D. dissertation, Department of Anthropology, Washington State University, Seattle. Rait, Mary 1932 History of the Grand Valley. M.A. thesis, University of Colorado, Boulder. Reed, Alan D. and Michael D. Metcalf 1999 Colorado Prehistory: A Context for the Northern Colorado River Basin. Colorado Historical Society, Denver. USDA Soil Conservation Service 1978 Technical Guide IIE: Range Site Descriptions. Wendlund, Wayne M. and Reid A. Bryson 1974 Dating climatic episodes of the Holocene. Ouatemary Research 4:9-24. Young, Robert G. and Joann W. 1977 Colorado West Land ofGeolo• and Wildflowers. Wheelwright Press, Ltd. 12 INTEGRATED VEGETATION AND NOXIOUS WEED MANAGEMENT PLAN East Dry Hollow Loop Phase 2 Pipeline Garfield County Cover Photo: Existing pipeline ROW west of the EnCana 02 well pad Prepared for: EnCana Oil and Gas (USA), Inc. Parachute, Colorado Prepared by: WestWater Engineering 2516 Foresight Circle #1 Grand Junction, CO 81505 August 2008 1.0 INTRODUCTION 1.1 Project Description EnCana Oil and Gas (USA), Inc. (EnCana), has requested WestWater Engineering (WWE) to provide an "Integrated Vegetation and Noxious Weed Management Plan" (IVNWMP) for a proposed "special use permit" in Garfield County, Colorado. EnCana is seeking the special use permit to install an additional section of 20 -inch gas pipeline, Phase 2, from the EnCana/Eubanks property boundary to the EnCana OlE well pad east of West Divide Creek (Figure 1). EnCana has initiated the installation of the Phase 1 segment of the gas pipeline from their Hunter Mesa compressor station to the EnCana/Eubanks property boundary line. The Phase 1 segment of the East Dry Hollow Loop Pipeline has been previously surveyed and discussed in reports filed in March 2008 and August 2008 (WWE 2008a, 2008b). This report pertains to the Phase 2 portion of the proposed pipeline which is approximately 2.3 miles in length (Figure 1). The entire Phase 2 portion of the pipeline is situated on private property approximately 5.5 miles south of the Town of Silt. Beginning at the EnCana/Eubanks property line, the Phase 2 pipeline follows an existing gas line right-of-way (ROW) northeasterly about 0.8 miles to the EnCana 02 well pad. In this section, the pipeline traverses irrigated and dry -land meadows, as well as adjacent pinon/juniper woodland (Cover Photo). The pipeline then traverses an open meadow, following an existing gas line ROW northward about 0.4 miles to an existing gas line ROW intersection. The pipeline then traverses sagebrush rangeland and pifion/juniper woodland eastward about 0.7 miles, descending to West Divide Creek while following an existing gas pipeline ROW. The pipeline then ascends the east bank of West Divide Creek to an irrigated meadow southeasterly about 0.4 miles to the EnCana OlE well pad. The pipeline crosses the Multa Trina irrigation ditch on the slope west of West Divide Creek. Numerous natural gas well pads are adjacent to the pipeline alignment. Rural residences are widely spaced in the vicinity of the proposed pipeline alignment along County Roads 311 (Divide Creek) and 331 (Dry Hollow Creek). The primary use of the surrounding area of the pipeline is agriculture/rangeland, wildlife habitat, and recent natural gas extraction/development. 2.0 LANDSCAPE SETTING 2.1 Vegetation Communities The topography in the Phase 2 section of the pipeline is generally flat to rolling terrain in meadows, rangeland, and pinon/juniper woodland that is intersected by the moderately steep slopes of West Divide Creek that lies below the surrounding mesas. The west slope of the West Divide Creek pipeline crossing is moderately steep with the east side gradually rising in elevation to the mesa area where well pad OlE is located. Elevations along the pipeline route range from 5,900 feet in the bottom of the West Divide Creek drainage to 6,200 feet on top of the mesas. The predominant vegetation community along the pipeline route consists of open irrigated and dry -land meadows comprised of alfalfa and introduced grass species. Adjacent woodlands and rangelands are vegetated with overstories of pinon pine (Pinus edulis), Utah juniper (Juniperus utahensis), sagebrush (Artemesia tridentata), rabbitbrush (Chrysothamnus nauseosus), mountain WestWater Engineering Page 2 of 19 August 2008 mahogany (Cercocarpus montanus) and sumac (Rhus trilobata). During the surveys of February 20, 2008, a snow -depth of 15-20 inches precluded observation of most understory compositions and densities, although cheatgrass (Bromus tectorum) and wheatgrass species were observed. Wheatgrass spp. and cheatgrass were the dominant understory grass species observed during the surveys of August 18, 2008. The riparian area adjacent to West Divide Creek contains narrowleaf cottonwood (Populus angustifolia), wild rose (Rosa woodsii) and grasses. Numerous weed species were observed throughout the pipeline alignment during both surveys and are discussed further in this report. 2.2 Soil Types There are seven soil types found within the proposed pipeline corridor: Ildefonso Stony loam, Olney loam, Potts loam, Torriorthents-Camborthids-Rock outcrop complex, Torriorthents-Rock outcrop complex, Torrifluents and Vale -silt loam. The Olney, Potts and Vale -silt foams are characteristic of mesa tops, alluvial fans and valley sides on slopes between 1 to 6 percent. These soils have very severe and severe limitations for land capability, requiring "very special" and "special" management for production. Native vegetation characteristic of the Olney, Potts and Vale -silt loam soils is western wheatgrass (Pascopyrum smithii), bluebunch wheatgrass (Agropyron spicatum), big sagebrush, needle and thread grass (Hesperostipa comata), Indian ricegrass (Oryzopsis hymenoides), rabbitbrush (Chrysothamnus nauseosus) and bottlebrush squirreltail (Elymus elymoides). The Idelfonso Stony loam occurs on valley sides, hilly mesas and benches on slopes between 6 to 45 percent. This soil type supports big sagebrush, western wheatgrass, prairie junegrass (Koeleria macrantha), Indian ricegrass, serviceberry (Amalanchier alnifolia) and antelope bitterbrush (Purshia tridentata). These soils have severe limitations for use and are primarily utilized for pasture, rangeland, forestland and wildlife habitat. The Torriorthents-Camborthids-Rock and Torriothents-Rock out complex soils are found on steep hillsides with slopes of 15-70 percent and adjacent ridge -tops. These soils are associated with the steep slopes adjacent to West Divide Creek and support vegetation communities generally of pinon-juniper woodlands and mountain shrubs. These soils have very severe limitations for land capability; are unsuitable for cultivation; and are primarily used for livestock grazing, recreation and wildlife habitat. The Torrifluents soil type occurs on near -level terrain in flood plains and tributaries; has severe limitations for land use; and is primarily used for grazing, forestland and wildlife habitat. The vegetation generally associated with Torrifluents, which would be found in the riparian area of West Divide Creek, is grass spp., cottonwood (Populus spp.), willow (Salix spp.), sedge (Carex spp.) and rush (Juncus spp.). 3.0 NOXIOUS WEEDS Noxious weeds are plants that are not native to an area. Most have come from Europe or Asia, either accidentally or as ornamentals that have escaped. Once established in a new environment they tend to spread quickly since insects, diseases and animals that normally control them are WestWater Engineering Page 3 of 19 August 2008 absent. Noxious weeds are spread by man, animals, water, and wind. Prime locations for the establishment of noxious weeds include roadsides, sites cleared for construction, areas that are overused by animals or humans, wetlands, and riparian corridors. Subsequent to soil disturbances, vegetation communities can be susceptible to infestations of invasive or exotic weed species. Vegetation removal and soil disturbance during construction can create optimal conditions for the establishment of invasive, non-native species. Construction equipment traveling from weed -infested areas into weed -free areas could disperse noxious or invasive weed seeds and propagates, resulting in the establishment of these weeds in previously weed -free areas (Photo 1). Photo 1. Potential source of weed seed — transported soil on equipment Prevention and control of noxious and invasive weeds is a high priority for the State of Colorado. Colorado's Noxious Weed Act (State of Colorado 2005) sets forth the rules pertaining to prevention and control and classifies noxious weeds into three lists; A, B, and C. Each list has specific control requirements, with the most stringent requirements for those species found on List A. List A includes noxious weeds targeted for eradication and for which management plans have been developed for their control. Control of these species is required by law. If these species are found within a project area, prescribed management techniques stipulated by Colorado's Noxious Weed Act must be implemented. These techniques must be applied for the duration of the seed longevity for the particular species. List B species are recommended for control through the development and implementation of state noxious weed management plans. List C species are generally considered too widespread to effectively control. Control of List C species is not required but may be done by jurisdictions that chose to manage these species. In addition to the State-wide noxious list, Counties may elect to target specific noxious weeds in their locale. The noxious weed list for Garfield County is found in Table 1. WestWater Engineering Page 4 of 19 August 2008 d LE a 0 x x x x x x x x x x x x x x x x x x x x x x X x State "C" List x x x m Y «. a, N X X X X X X X X XXXXXXX XXXX State "A" List x x Life History' 1 P a m a a m m a a A 11 a a m a a O. o. a s B P P P Growth Form' LL (9 F S F LL F F LL F F LL F F T F F F F F LL F- F- I- Species Code ACRE 3 AECY N g CC ARAB 3 CADR CAAC CANU 4 CEDI 3 CEMA4 CESO 3 1 CHLE 80 z 0I CIAR 4 [ CYOF ELAN EUES cal J W ° LIVU 2 LYSA 2 ONAC TACH 2 V a k 4a k Common name Russian knapweed Jointed goatgrass Common (Lesser) burdock Absinth wormwood Hoary cress, Whitetop Spiny plumeless thistle 1 Musk (Nodding plumeless) thistle Diffuse knapweed Spotted knapweed Yellow starthistle Oxeye daisy a" 8 0 Canada thistle Houndstongue, Gypsyflower Russian olive Leafy spurge Dalmatian toadflax, broad-leaved Dalmatian toadflax, narrow -leaved Yellow toadflax Purple loosestrife Scotch thistle Chinese tamarisk Smallflower tamarisk Salt cedar, Tamarisk Species Acroptilon repens v c U co O o= co ct Arctium minus Artemisia absinthium Cardaria draba Carduus acanthoides Carduus nutans Centaurea diffusa Centaurea maculosa Centaurea solstitialis Chrysanthemum leucanthemum Cichorium intybus Cirsium arvense Cynoglossum officinals Elaeagnus angustifolia Euphorbia esula Linaria dalmatica Linaria genistifolia Linaria vulgaris m U y � Onopordum acanthium Tamarix chinensis Tamarix parviflora Tamarix ramosissima 00 0 0 N N 6'n Q m c c N N o. 11.To rn W N O 0 11 a) 03 a a Tac m II a 0 0 J N 0 O c •E c 0 LL a O 0 (9 WestWater Engineering 3.1 Survey Methods Mapped soil types, as published by the Natural Resources Conservation Service (NRCS), U. S. Department of Agriculture (USDA), were reviewed to determine the soil types and vegetation characteristics of the pipeline alignment and surrounding property (NRCS 2008). Field surveys of the proposed East Dry Hollow Loop Phase 2 pipeline alignment were conducted by WWE biologists on February 20, 2008, and August 18, 2008. The February 2008 survey was conducted on the pipeline section between the EnCana O1 E and 02 well pads. The August 2008 survey was conducted on the pipeline section between the EnCana 02 well pad and the EnCana/Eubanks property boundary. WWE biologists surveyed an area 60 feet from the center line on both sides of the proposed pipeline to identify vegetation communities and to search for, identify, and map noxious weed species. For the February 2008 survey, a snow cover of 15-20 inches prevented accurate detection and identification of existing weeds (Photos 3 and 4). Only those plants persisting above the snow were observed and recorded. During the August 2008 survey ground and climate conditions were dry and visibility of resource features was excellent (Photo 2). Vegetation types were determined through field identification of plants, aerial photography, and on -the -ground assessments of plant abundance visible during the survey. Identification of plant species was aided by using pertinent published field guides (Whitson et al. 2001, CWMA 2007, Kershaw et al. 1998). For the February 2008 survey weeds visible above the snows were identified from dried residual growth (Photo 3). Weeds observed during the August 2008 survey were in mid- to late -growth stages and readily detected (Photo 2). Photographs were taken of the general project location, vegetation and terrain, and other specific biological findings. Locations of weeds and other features included in this report were recorded with the aid of a handheld global positioning system instrument (GPS) using NAD83/WGS84 map datum, with all coordinate locations based on the Universal Transverse Mercator (UTM) coordinate system in Zone 13S (Appendix A). 3.2 Observations This report includes weeds found during the February 2008 and August 2008 surveys by WWE biologists. Few weeds were observed during the February 2008 survey due to the 15-20 inch snow cover (Photo 3). Due to their high visibility, numerous weed populations were observed during the August 2008 surveys (Photo 2). Most weeds observed during both surveys were found within waterway drainages and previously disturbed areas such as the existing gas line ROW. Six noxious weed species, listed by Garfield County, were observed including chicory, common burdock, houndstongue, jointed goatgrass, musk thistle and Russian knapweed (Table 1, Figure 1). The most prevalent Garfield County listed weed species observed were houndstongue, musk thistle and Russian knapweed (Photo 2). Observed State listed weed species, not listed by Garfield County, were bull thistle, cheatgrass and redstem filaree (Table 1, Photo 2). Other problematic weeds noted during the surveys were clasping pepperweed, kochia, and Russian thistle (Photo 3). Location coordinates and densities of Garfield County listed noxious weeds observed during the surveys are presented in Appendix A. WestWater Engineering Page 6 of 19 August 2008 Photo 2. Russian knapweed and cheatgrass in pipeline ROW; August 18, 2008 Photo 3. Russian thistle in existing pipeline ROW; February 20, 2008 West Water Engineering Page 7 of 19 August 2008 Table 2. Name, Type and Control Methods For Weeds In The Project Area Common Name*/ USDA Symbol Scientific Name Type Control Methods common burdock a ARMI2 Arctium minus B Cutting and digging at rosette through early seed stages. Reseed with aggressive grasses. Approved herbicides if needed. Russian knapweed b ACRE3 Acroptilon repens P Re -seeding disturbed sites with fast growing grasses, herbicide in fall; allelopathic — tillage may be necessary houndstongue b CYOF Cynoglossum officinale B Re -seed with aggressive grasses, remove at flowering or early seed, dig or grub at pre -bud or rosette stage or apply herbicides prior to bud stage. chicory ` CIIN Cichorium intybusP Hand pulling effective in small patches only. Herbicide treatment in bud to bloom stage or in fall. Fall treatment most effective since following years shoots are killed. jointed goatgrass ` AECY AegilopsA cylindrica Apply herbicide in the fall to control winter annual; destroy small infestations; prevent seed production. musk thistle b CANU4 Carduus nutans B Tillage or hand grubbing in the rosette to pre- flowering stages. Repeated mowing at bolting or early flowering. Seed head and rosette weevils, leaf feeding beetles. Herbicides in rosette stage. bull thistle b CIVU Cirsium vulgare B Till or hand grub in the rosette stage, mow at bolting or early flowering; apply seed head & rosette weevils, leaf feeding beetles, cut and bag mature seed heads. Herbicides in rosette stage. redstem filaree b ERCI ErodiumB cicutarium Use a combination of seedbed tillage and herbicides. Cheatgrass ` BRTE Bromus tectorumC Eliminate seed source; re -vegetate with native grasses; herbicide treatment in early spring and fall. * 8 CCR 1203-19, Colorado Dep rtment of Agriculture; Bold type on G rfield County list and observed in field; "State of Colorado "A" list, ° "B" list, "C" list, , " not listed. Type: A -annual, B -biennial, P -perennial. MSU 2001, NDSU 2000, UN 2007, NRCS 2007, Sirota 2004, Whitson et al. 2001 WestWater Engineering Page 8 of 19 8/29/2008 3.3 Treatment and Control of Noxious Weed Infestations Invasive and noxious weeds commonly occur along creek corridors and adjacent drainages, especially along riparian areas, pipeline routes, disturbed areas such as well pads, roadsides, and abandoned fields. From the noxious weed list developed by the State of Colorado (8 CCR 1203- 19), Garfield County has designated 24 weeds to be controlled in its jurisdiction (Table 1). Six weed species from the Garfield County list were found in or near the proposed pipeline ROW and are indicated by bold type in Table 2. Included in Table 2 are weed life cycle type, state listing category, and recommended control method for each weed species. Those in regular type were also observed during the survey and are listed by the State of Colorado as noted (CWMA 2007). The locations of observed Garfield County listed weeds are plotted on the project map (Figure 1). 3.4 Recommended Treatment Strategies It is important to know whether the targeted weed species is annual, biennial, or perennial to select strategies that effectively control and eliminate the target. Treatment strategies are different depending on plant type, which are summarized in Tables 3 and 4. In Section 3.5, the Life Cycle and Management Calendars section and Table 5, best timing and strategies are illustrated for the noxious weeds found. Herbicides should not always be the first treatment of choice when other methods can be effectively employed. Table 3. Treatment Strategies for Annual and Biennial Noxious Weeds Target: Prevent Seed Production 1. Hand grub (pull), hoe, till, cultivate in rosette stage and before flowering or seed maturity. If seeds develop, cut and bag seed heads. 2. Chop roots with a spade below soil level. 3. Treat with herbicide in rosette or bolting stage, before flowering. 4. Mow biennials after bolting stage, before seed set. Mowing annuals will not prevent flowering but can reduce total seed production. (Sirota 2004) Table 4. Treatment Strategies for Perennials Target: Deplete nutrient reserves in root system, prevent seed production 1. Allow plants to expend as much energy from root system as possible, do not treat when first emerging in spring, but allow growth to bud/bloom stage. If seeds develop, cut and bag if possible. 2. Herbicide treatment at bud to bloom stage or in the fall (recommended, after August 15 when natural precipitation is present). In the fall, plants draw nutrients into the roots for winter storage. Herbicides will be drawn down to the roots more efficiently at this time due to translocation of nutrients to roots rather than leaves. If the weed patch has been present for a long period of time, another season of seed production is not as important as getting the herbicide into the root system. Spraying in fall (after middle August) will kill the following year's shoots, which are being formed on the roots at this time. 3. Mowing usually is not recommended because the plants will flower anyway; seed production should be reduced. Many studies have shown that mowing perennials and spraying the re -growth is not as effective as spraying without mowing. Effect of mowing is species dependent; therefore, it is imperative to know the species and its basic biology. Timing of application must be done when biologically appropriate, which is not necessarily convenient. 4. Tillage may or may not be effective. Most perennial roots can sprout from pieces only 'A - 1" long. Clean machinery thoroughly before leaving the weed patch. WestWater Engineering Page 10 of 19 August 2008 Table 4. Treatment Strategies for Perennials Target: Deplete nutrient reserves in root system, prevent seed production 5. Hand pulling is generally not recommended for perennial species unless you know the plants are seedlings and not established plants. Hand pulling can be effective on small patches but is very labor intensive because it must be done repeatedly. (Sirota 2004) Herbicide treatment with two or more herbicide modes of action in fall (after approximately August 15 when natural precipitation is present) is the best method to control difficult species. The resilience and ability to quickly develop immunity to herbicides, particularly those used incorrectly, makes it imperative to use the proper chemicals at the correct time in the specified concentration. Most misuse seems centered around excessive use either in frequency or concentration. This results in mostly top kill and an immune phenotype. 3.5 Life Cycle and Management Calendars Figure 2 is a two-year calendar for control and life cycle of biennial thistles such as bull thistle and musk thistle. It is also appropriate to control common mullein. One column that should be added is cutting of rosettes, which can be done any time during growing. Figure 2. Life Cycle and Management strategies for biennial thistles Herbicide Application Herb. Appl. 441 Mowing, 110 Emergence 4--- Roieue ► Bolls Ft.lnx13 Inas Spnng 1 Summar I Fail I Water [ Spnng Sunvner Year 1 Year 2 (Hartzler 2006) Best results in the control of thistles and knapweed can be achieved by following the recommended timetable presented in Table 5. WestWater Engineering Page 11 of 19 August 2008 [Species Type* Thistle, Canada P Knapweed, Russian rc—p Thistle, Bull - lst year Thistle, Bull - 2nd year B B Thistle, Musk, 15` B year Thistle, Musk, 2nd B year Tamarisk* Jan Feb 'March Table 5. Noxious Weed Biology May June [July Aug --� flowering Seed set germination --> --> --> rGermination -3 -4 -4 Semi - dormancy -4 4 April Rosettesl (emerges rosettes --> bolting flowering rosettes -4 -4 Bolting flowering Leaves emerge flowering flowering I--> seed set -4 seed set seed set [A = annual; WA = winter annual; B = biennial; P = perennial; CP = creeping perennial Shaded areas indicate best control timing. * Tamarisk control can be done any time of the year, but is easier when leaves are absent and weather is cooler. (Sirota 2004) Sept regrowth Oct -3 -> regrowth --> --> d --> --> --> rosettes -4 -4 growth flowering rosettes Semi - seed set dormancy 3.6 Commercial Applicator Recommendations A certified commercial applicator is a good choice for herbicide control efforts. An applicator has the full range of knowledge, skills, equipment and experience desired when dealing with Russian knapweed and other difficult vegetation. Reclamation farming services using multiple seed bin range drills and specialized related equipment is available and should be used for reclamation seeding projects. Common chemical and trade names may be used in this report. The use of trade names is for clarity by the reader. Inclusion of a trade name does not imply endorsement of that particular brand of herbicide and exclusion does not imply non -approval. Certified commercial applicators will decide which herbicide to use and at what concentration according to label directions. Landowners using unrestricted products must obey all label warnings, cautions, and application concentrations. The author of this report is not responsible for inappropriate herbicide use by readers. 3.7 Best Management Practices — Noxious Weeds The following practices should be adopted for any construction project to reduce the costs of noxious weed control. The practices include: • top soil, where present, should be segregated from deeper soils and replaced as top soil on the final grade, a process known as live topsoil handling; WestWater Engineering Page 12 of 19 August 2008 -3 • wetland vegetation, if encountered, should be live handled like sod, temporarily watered if necessary, and placed over excavated sub -soil relative to the position from which the wetland sod was removed; • cut-off collars should be placed on all wetland and stream crossings to prevent back washing or draining of important aquatic resources; • in all cases, temporary disturbance should be kept to an absolute minimum; • equipment and materials handling should be done on established sites such as the northern point of origin to reduce area and extent of soil compaction; • disturbances should be immediately re -seeded with the recommended mix in the re - vegetation section; • topsoil stockpiles should be seeded with non-invasive sterile hybrid grasses, if stored longer than one growing season; • prior to delivery to the site, equipment should be cleaned of soils remaining from previous construction sites which may be contaminated with noxious weeds; and • if working in sites with weed -seed contaminated soil, equipment should be cleaned of potentially seed -bearing soils and vegetative debris prior to moving to uncontaminated terrain. In areas with slope greater than 3 percent, imprinting of the seed bed is recommended. Imprinting can be in the form of dozer tracks or furrows perpendicular to the direction of slope. When hydro -seeding or mulching, imprinting should be done prior to seeding, unless the mulch is to be crimped into the soil surface. If broadcast seeding and harrowing, imprinting should be done as part of the harrowing. Furrowing can be done by several methods, the most simple of which is to drill seed perpendicular to the direction of slope in a prepared bed. Other simple imprinting methods include deep hand raking and harrowing, always perpendicular to the direction of slope. Herbicides: Difficult species respond better to an application of a combination of two or more chemical modes of action (biological reason for plant death) rather than one (Boerboom 1999). It has also been found that use of two different groups of chemicals in the same mode of action can increase effectiveness on difficult species, e.g., phenoxys and benzoic acids or carboxylic acids and benzoic acids in a mix. Some come commercially pre -mixed, e.g., Crossbow and Super Weed -be -Gone Max, which are available over the counter. However, some of the most effective herbicides are restricted use and available only for licensed applicators. Professionals or landowners using herbicides must use the concentration specified on the label of the container in hand. Herbicides generally do not work better at higher concentrations. Most herbicide failures observed by WWE are related to incomplete control caused by high concentrations killing top growth before the active ingredient can be transported to the roots through the nutrient translocation process. Most herbicide applications should use a surfactant if directed on the herbicide label or other adjuvants as called for on the herbicide label. Grazing: Grazing should be deferred in reclaimed areas until the desired species are established. Mechanical: Bull thistle when found in low density and occurrence is an example where control could be accomplished mechanically. WestWater Engineering Page 13 of 19 August 2008 Alternative Methods: An alternative method, particularly for downy brome infestations and poor or destroyed topsoil, is the application of vesicular-arbuscular mycorrhizal fungi typically referred to as AMF. These fungi, mostly of the genus Glomus are symbiotic with about 80 percent of all vegetation. Endo-mycorrhizal fungi are associated mostly with grasses and forbs and could be helpful when reclaiming this project. In symbiosis, the fungi increase water and nutrient transfer capacity of the host root system by as much as several orders of magnitude (Barrow and McCaslin 1995). Over-the-counter commercial products, which are better adapted to coating seeds when re- seeding and treating roots of live seedling trees and shrubs at time of planting, come in powder form and are available from many different sources. Some also come in granular form to be spread with seed from a broadcast spreader. The best AMF products should contain more than one species. All Colorado State Forest Salida District tree and shrub plantings include the application of AMF. According to District Forester Crystal Tischler, "AMF is worth it" (Tischler 2006). Most, if not all, Colorado Department of Transportation re-vegetation/re-seeding projects now require use of AMF and BioSol, a certified by-product of the penicillin manufacturing process composed primarily of mycelium. Compacted soils respond well to fossilized humic substances and by- products called humates. These humates, including humic and fulvic acids and humin were formed from pre -historic plant and animal deposits and work especially well on compacted soils when applied as directed. 4.0 REVEGETATION - RECLAMATION 4.1 Pipeline ROW The pipeline traverses a variety of terrain including open irrigated meadows, a steep drainage, small intermittent drainages, the riparian area of West Divide Creek and drier ridge top areas and hillsides. The majority of the pipeline route follows an existing gas and water line that has previously been disturbed (Cover Photo, Photo 4). The pipeline will disturb an area approximately 60 feet in width for a length of about 2.3 mile resulting in approximately 16.95 acres of disturbance. The vegetation ranges from irrigated and non -irrigated alfalfa/grass meadows to varying native vegetation depending on the site. Successful reclamation of the project area is dependent upon soil type and texture, aspect, slope, proper weed control and re - vegetation with suitable plant species. The surveys of February and August 2008, noted listed species of bull thistle, cheatgrass, chicory, common burdock, houndstongue, jointed goatgrass, musk thistle, redstem filaree and Russian knapweed in the pipeline ROW. Other problematic weeds noted were clasping pepperweed, kochia and Russian thistle. Construction of the new pipeline will create a new disturbance that could allow additional weeds to gain a foothold unless an effective monitoring and weed control program is implemented. Based on the soil types, terrain, and the presence of noxious weeds in the pipeline ROW, successful reclamation is most likely if a seed mix of grasses is used (Tables 6 and 7). This will allow control of noxious weeds while establishing vegetation in the disturbed areas. Two seed mixes are recommended based on soil type and available moisture; one for the drier pinon/juniper/sagebrush sites and one for the meadow/riparian sites with more moisture. WestWater Engineering Page 14 of 19 August 2008 Photo 4. Existing pipeline ROW west of West Divide Creek; February 20, 2008 Individual property owners affected by the pipeline may have specific seed mix preferences for vegetation reclamation on their respective properties. For best results and success, the recommended grass mixture reseeding should be done in late autumn. The reseeding rate should be doubled for broadcast application (CNHP 1998). Preferred seeding method is multiple seed bin rangeland drill with no soil preparation other than simple grading to slope and imprinting and waterbars where applicable. Alternative seeding methods include, but are not limited to: • harrow with just enough soil moisture to create a rough surface, broadcast seed and re - harrow, preferably at a 90 degree angle to the first harrow; • hydro -seeding (most economical in terms of seed cost); and • hand -raking and broadcast followed by re -raking at a 90 degree angle to the first raking. • These are not the only means of replanting the site. However, these methods have been observed to be effective in similar landscapes. After desired grasses are established and control of target weed species is successful, then shrubs, forbs and trees can be planted without concern for herbicide damage. Few native forb seeds are available commercially as cultivars. Most are collected from natural populations. Native shrubs and forbs often do not establish well from seed, particularly when mixed with grasses. Past experience has shown that stabilizing the soil with grasses, accomplishing weed control, and then coming back to plant live, containerized woody species in copses has been the most cost effective method for establishing the woody species component of the plant community. WestWater Engineering Page 15 of 19 August 2008 0 w O 'y C7 C as N (:Q d CI '0 P▪ r 0 E aL O O E W4 • op O d 8 • 0 w 0 s• em, d ciernO d aO u po • y as a • 1 A p F • lq PLS Ibs/acre* Plant the Following (10% Total) O 1-. and Both of the Following (15% Each, 30% Total) V1 N 2.8 and One of the Following (20% Total) 3.4 M M and Two of the Following (40% Total) 0.6 0.6 N N Form Bunch Bunch Bunch Sod -forming Bunch Bunch Bunch Bunch 0 0 00 0 Warm 0 0 0 Cool 0 0 0 Nezpar, Paloma, Rimrock Viva florets Secar, P-7, Anatone Critana, Schwendimar San Luis Scientific Names Achnatherum [OryzopsisJ hymenoides Pleuraphis (Hilaria] jamesii Pseudoroegneria spicata, Agropyron spicatum Elymus lanceolatus ssp. lanceolatus, Agropyron dasystachyum Elymus trachycaulus, Agropyron trachycaulum Poa fendleriana Poa sandbergii, Poa secunda Elymus elymoides, Sitanion hystrix Common Name Indian Ricegrass a a> 74 0 Bluebunch Wheatgrass Thickspike Wheatgrass Slender Wheatgrass Muttongrass Sandberg Bluegrass Bottlebrush Squirreltail *Based on 60 pure live seeds (PLS) per square foot, drill -seeded. Double this rate (120 PLS per square foot) if broadcast or hydro -seeded 00 0 0 N W C4-1 0 l WestWater Engineering d a % a 4 A Plant Both of the Following (20% Each, 40% Total) 00 3.3 and Three of the Following (20% Each, 60% Total) 3.5 00 .1- a 1.2 Form Bunch Bunch Bunch Bunch 1 Sod -forming Bunch bJ A E 0 0 h Uo U U loop o U U 0 U d .22 Lel Garnet San Luis Critana, Schwendimar Joseph 1 Scientific Names Bromopsis [Bromus] marginatus Elymus trachycaulus, Agropyron trachycaulum Achnatherum [Stipa] lettermanii Elymus glaucus 1 Elymus lanceolatus ssp. lanceolatus, Agropyron dasystachyum Festuca idahoensis Poa nervosa Common Name Mountain Brome Slender Wheatgrass Letterman Needlegrass Blue Wildrye Thickspike Wheatgrass Idaho Fescue Wheeler Bluegrass 00 0 0 N PO Q CN O N et WestWater Engineering For the pipeline ROW, grasses should be drilled after construction activities cease and the equipment removed from the site. After two years of controlling weeds (with herbicides) and allowing the grasses to become established, the forbs and woody species should be inter -seeded or hand -planted to increase the diversity and value of the reclamation plantings. 5.0 REFERENCES Barrow, J. R., and Bobby D. McCaslin. 1995. Role of microbes in resource management in arid ecosystems. In: Barrow, J. R., E. D. McArthur, R. E. Sosebee, and Tausch, R. J., comps. 1996. Proceedings: shrubland ecosystem dynamics in a changing environment. General Technical Report, INT -GTR -338, Ogden, Utah: U.S. Department of Agriculture, U.S. Forest Service, Intermountain Resource Station, 275 pp. Boerboom, C. 1999. Herbicide mode of action reference. Weed Science, University of Wisconsin, 5 pp. CNHP. 1998. Native Plant Re -vegetation Guide for Colorado. Colorado Natural Heritage Program, Caring for the Land Series, Vol. III, State of Colorado, Division of Parks and Outdoor Recreation, Department of Natural Resources, Denver, 258 pp. CWMA. 2007. S. Anthony, T. D'Amato, A. Doran, S. Elzinga, J. Powell, I. Schonle, K. Uhing. Noxious Weeds of Colorado, Ninth Edition. Colorado Weed Management Association, Centennial. Hartzler, Bob. 2006. Biennial thistles of Iowa. ISU Extension Agronomy. URL: http://www.weeds.iastate.edu/mgmt/2006/iowathistles.shtml Kershaw, L., A. MacKinnon, and J. Pojar. 1998. Plants of the Rocky Mountains. Lone Pine Publishing, Auburn, Washington. MSU. 2001. Redstem Filaree Management Practices. M. Trainor, A. J. Bussan., Montana State University. Bozeman, Montana. http://weeds.montana.edu/crop/redstem.htm NDSU. 2000. Identification and Control of Field Bindweed. Rodney G. Lym, R. K. Zollinger. North Dakota State University Agriculture and University Extension, Fargo, North Dakota: http://www.ag.ndsu.edu/pubs/plantsci/weeds/w802w.htm NRCS. 2007. The PLANTS Database (http://plants.usda.gov, 7 September 2006). National Plant Data Center, U.S. Department of Agriculture, Natural Resource Conservation Service, Baton Rouge, Louisiana 70874-4490. NRCS. 2008. Web Soil Survey, U.S. Department of Agriculture, Natural Resource Conservation Service, URL: http://websoilsurvey.nrcs.usda.gov Sirota, J. 2004. Best management practices for noxious weeds of Mesa County. Colorado State University Cooperative Extension Tri River Area, Grand Junction, Colorado. URL: http://www.coopext.colostate.edu/TRA/PLANTS/index.html#http://www.coopext.colosta te.edu/TRA/PLANTS/bindweedmite.html WestWater Engineering Page 18 of 19 August 2008 State of Colorado. 2005. Rules pertaining to the administration and enforcement of the Colorado Noxious Weed Act, 35-5-1-119, C.R.S. 2003. Department of Agriculture, Plant Industry Division, Denver, 78 pp. Tischler, Crystal. 2006. District Forester, Colorado State Forest Service, Salida, Colorado. Personal communication with Bill Clark, WestWater Engineering, Grand Junction, Colorado. UN. 2007. Controlling Jointed Goatgrass. Drew J. Lyon, and R. N. Klein, University of Nebraska- Lincoln Extension, Institute of Agriculture and Natural Resources, Lincoln, Nebraska: http://www.ianrpubs.unl.edu/epublic/pages/publicationD.jsp?publicationld=87 Whitson, T. D. (editor), L. C. Burrill, S. A. Dewey, D. W. Cudney, B. E. Nelson, R. D. Lee, and R. Parker. 2001. Weeds of the West - 9th edition. Western Society of Weed Science in cooperation with Cooperative Extension Services, University of Wyoming, Laramie. WWE. 2008a. Integrated Vegetation and Noxious Weed Management Report, East Dry Hollow Loop Phase 1 Pipeline. Prepared for EnCana Oil and Gas (USA), Inc., March 2008 by WestWater Engineering, Grand Junction, Colorado. WWE. 2008b. Integrated Vegetation and Noxious Weed Management Report, East Dry Hollow Loop Phase 1 Pipeline, Addendum. Prepared for EnCana Oil and Gas (USA), Inc., August 2008, by WestWater Engineering, Grand Junction, Colorado. WestWater Engineering Page 19 of 19 August 2008 APPENDIX A Garfield County Listed Noxious Weed Locations February 20, 2008; August 18, 2008 East Dry Hollow Loop Phase 2 Pipeline S • ecies Plant Code Continuous Weeds Start/Stop Zone Easting Northing # Plants in 50'x50' musk thistle CANU4 NA 13S 272696 4372102 10-100 Russian knapweed ACRE3 NA 13S 272749 4372098 >500 Russian knapweed ACRE3 NA 13S 272765 4372111 100-500 musk thistle CANU4 NA 13S 272771 4372106 0 Russian knapweed ACRE3 NA 13S 272775 4372097 10-100 musk thistle CANU4 NA 13S 272784 4372104 0-10 musk thistle CANU4 NA 13S 272815 4372120 100-500 musk thistle CANU4 NA 13S 272902 4372120 100-500 common burdock ARMI2 NA 13S 272902 4372120 100-500 Russian knapweed ACRE3 NA 13S 273009 4372085 0-10 jointed goatqrass AECY NA 13S 273543 4372303 >500 houndstongue CYOF NA 13S 274099 4372960 <10 houndstongue CYOF NA 13S 275179 4372568 10-100 common burdock ARMI2 NA 13S 274905 4372921 10-100 chicory CIIN NA 13S 275169 4372612 10-100 houndstongue CYOF NA 13S 274900 4372932 10-100 WestWater Engineering APPENDIX A August 2008 WILDLIFE IMPACT AND SENSITIVE AREAS REPORT East Dry Hollow Loop Phase 2 Pipeline Garfield County, Colorado Cover Photo: Existing pipeline ROW though pifion/juniper — northeast view toward EnCana 02 well pad Prepared For: EnCana Oil and Gas (USA), Inc. Prepared by: WestWater Engineering 2516 Foresight Circle #1 Grand Junction, CO 81505 August 2008 INTRODUCTION EnCana Oil and Gas (USA), Inc. (EnCana), has requested WestWater Engineering (WWE) to provide a "Wildlife Impact and Sensitive Areas Report" for a proposed "special use permit" in Garfield County, Colorado. EnCana is seeking the special use permit to install an additional section of 20 -inch gas pipeline from the EnCana/Eubanks property boundary to the EnCana OlE well pad east of West Divide Creek (Figure 1). Phase I of this pipeline begins at the Hunter Mesa compressor station and terminates at the EnCana/Eubanks property boundary. The Phase 1 segment of the East Dry Hollow Loop Pipeline has been previously surveyed and discussed in reports filed in March 2008 and August 2008 (WWE 2008a, 2008b). This report pertains to the Phase 2 portion of the proposed pipeline that is approximately 2.3 miles in length and utilizes a 60 -foot disturbance right-of-way (ROW). The potential area of disturbance for the Phase 2 portion is approximately 16.95 acres. The entire Phase 2 portion of the pipeline is situated on private property. In preparation for developing the following report, WWE biologists performed field surveys and assessments of wildlife, wildlife habitats, and habitats for sensitive plant species on the proposed Phase 2 pipeline alignment and surrounding area. WWE conducted the surveys on February 20, 2008, and August 18, 2008. The purposes of the surveys were to determine those wildlife and sensitive plant species that occupy the project area at varying periods during the year and which would potentially be impacted as a result of the pipeline construction and operational activities. Factors considered include soil type and texture, existing land management, absence or presence of wildlife and plant species, habitat designations by Federal and State wildlife agencies, and the present natural vegetation community. This report provides written documentation that describes survey findings as well as recommended mitigation measures to help offset potential impacts to wildlife and sensitive plants that occupy the project site and adjacent area. This assessment and mitigation plan meets the wildlife requirement of Garfield County Regulation 9.07.04 (10) (Board of County Commissioners 2006). BACKGROUND INFORMATION Descriptions of critical habitats for federally -listed threatened, endangered and candidate fish and wildlife species were reviewed in the Federal Register, U. S. Department of the Interior, Fish and Wildlife Service (USFWS). Wildlife habitat (activities) maps, provided via the Internet web by the Colorado Division of Wildlife's (CDOW) "Natural Diversity Information Source" (NDIS), were reviewed and incorporated into this report in reference to state -listed threatened, endangered and species of "special concern"(CDOW 2008a, 2008b). A list of Birds of Conservation Concern (BOCC) and their habitats for the Southern Rocky Mountain Region and the Colorado Plateau was reviewed. This list is published by the USFWS through a Memorandum of Understanding with the Bureau of Land Management (BLM) and the US Forest Service (USFS) that places high conservation priorities for BOCC species (USFWS 2002). Not all of these BOCC species occur regularly in Colorado, some are present only as seasonal migrants. Of those known to breed in Colorado, only a portion are known or suspected to breed within the vicinity of the proposed pipeline. Avian literature sources including the "Birds of Western Colorado Plateau and Mesa Country" (Righter et al. 2004) and the "Colorado Breeding Bird Atlas" (Kingery 1998) were reviewed to determine the likelihood for species WestWater Engineering Page 1 of 19 pages August 2008 occurrence within the project area. Bird identification and taxonomic nomenclature are in accordance with that applied by the Colorado Breeding Bird Atlas Project (Kingery 1998). Mapped soil types, as published by the Natural Resources Conservation Service (NRCS), U. S. Department of Agriculture, were reviewed to determine the soil types and vegetation characteristics of the project site and surrounding property (NRCS 2008). The determination of the presence/absence of suitable habitat for Threatened, Endangered and "Sensitive Species" plants (TESS) was based on previous WWE observations of typical habitat occupied by BLM or USFS sensitive plants, the Colorado Natural Heritage Program (CNHP) Rare Plant Field Guide (Spackman et al. 1997), and locations of species documented in the CNHP statewide database. LANDSCAPE SETTING General Description The proposed pipeline is located on private lands, about 5.5 miles south of the Town of Silt and about 4.5 miles south of the Colorado River. Beginning at the EnCana/Eubanks property line, the Phase 2 pipeline follows an existing gas line ROW northeasterly about 0.8 miles to the EnCana 02 well pad. In this section, the pipeline traverses irrigated and dry -land meadows, as well as adjacent pifon/juniper woodland (Cover Photo). The pipeline then traverses an open meadow, following an existing gas line ROW northward about 0.4 miles to an existing gas line ROW intersection. The pipeline then traverses sagebrush rangeland and pifion/juniper woodland eastward about 0.7 miles, descending to West Divide Creek while following an existing gas pipeline ROW. The pipeline then ascends the east bank of West Divide Creek to an irrigated meadow southeasterly about 0.4 miles to the EnCana OIE well pad. The pipeline crosses the Multa Trina irrigation ditch on the slope west of West Divide Creek. Numerous natural-gas well pads are adjacent to the pipeline alignment. Rural residences are widely spaced in the vicinity of the proposed pipeline alignment along County Roads 311 (Divide Creek) and 331 (Dry Hollow Creek). The primary use of the surrounding area of the pipeline is agriculture/rangeland, wildlife habitat and recent natural gas extraction/development. Soils There are seven soil types found within the proposed pipeline corridor: Ildefonso Stony loam, Olney loam, Potts loam, Torriorthents-Camborthids-Rock outcrop complex, Torriorthents-Rock outcrop complex, Torrifluents and Vale -silt loam. The Olney, Potts and Vale -silt loams are characteristic of mesa tops, alluvial fans and valley sides on slopes between 1 to 6 percent. These soils have very severe and severe limitations for land capability, requiring "very special" and "special" management for production. Native vegetation characteristic of the Olney, Potts and Vale -silt loam soils is western wheatgrass (Pascopyrum smithii), bluebunch wheatgrass (Agropyron spicatum), big sagebrush (Artemesia tridentata), needle and thread grass (Hesperostipa comata), Indian ricegrass (Oryzopsis hymenoides), rabbitbrush (Chrysothamnus nauseosus) and bottlebrush squirreltail (Elymus elymoides). WestWater Engineering Page 3 of 22 pages August 2008 The Idelfonso Stony loam occurs on valley sides, hilly mesas and benches on slopes between 6 to 45 percent. This soil type supports big sagebrush, western wheatgrass, prairie junegrass (Koeleria macrantha), Indian ricegrass, serviceberry (Amalanchier alnifolia) and antelope bitterbrush (Purshia tridentata). These soils have severe limitations for use and are primarily utilized for pasture, rangeland, forestland and wildlife habitat. The Torriorthents-Camborthids-Rock and Torriothents-Rock out complex soils are found on steep hillsides with slopes of 15-70 percent and adjacent ridge -tops. These soils are associated with the steep slopes adjacent to West Divide Creek and support vegetation communities generally of pinon/juniper woodlands and mountain shrubs. These soils have very severe limitations for land capability; are unsuitable for cultivation; and are primarily used for livestock grazing, recreation and wildlife habitat. The Torrifluents soil type occurs on near -level terrain in flood plains and tributaries; has severe limitations for land use; and is primarily used for grazing, forestland and wildlife habitat. The vegetation generally associated with Torrifluents, which would be found in the riparian area of West Divide Creek, is grass spp., cottonwood (Populus spp.), willow (Salix spp.), sedge (Carex spp.) and rush (Juncus spp.). Vegetation and Topography The topography in the Phase 2 section of the pipeline is generally flat to rolling terrain in meadows, rangeland, and pinon/juniper woodland that is intersected by the moderately steep slopes of West Divide Creek that lies below the surrounding mesas. The west slope of the West Divide Creek pipeline crossing is moderately steep, while the east side gradually rises in elevation to the mesa area where the EnCana OlE well pad is located. Elevations along the pipeline route range from 5,900 feet in the bottom of the West Divide Creek drainage to 6,200 feet on top of the mesas. The predominant vegetation community along the pipeline route consists of open -irrigated and dry -land meadows comprised of alfalfa and introduced grass species. Adjacent woodlands and rangelands are vegetated with overstories ofpinon pine (Pinus edulis), Utah juniper (Juniperus utahensis), sagebrush, rabbitbrush (Chrysothamnus nauseosus), mountain mahogany (Cercocarpus montanus) and sumac (Rhus trilobata). During the surveys of February 20, 2008, a snow -depth of 15-20 inches precluded observation of most understory compositions and densities, although cheatgrass (Bromus tectorum) and wheatgrass species were observed. Wheatgrass spp. and cheatgrass were the dominant understory grass species observed during the surveys of August 18, 2008. The riparian area adjacent to West Divide Creek contains narrowleaf cottonwood (Populus angustifolia), wild rose (Rosa woodsii) and grass species. Numerous weed species were observed throughout the pipeline alignment during both surveys and are discussed in a separate report entitled "Integrated Vegetation and Noxious Weed Management Plan, East Dry Hollow Loop Phase 2 Pipeline" (IVNWMP) (WWE 2008c). WestWater Engineering Page 4 of 19 pages August 2008 SURVEY METHODS Field surveys of the proposed East Dry Hollow Loop Phase 2 pipeline alignment were conducted by WWE biologists on February 20, 2008, and August 18, 2008. The February 2008 survey was conducted on the pipeline section between the EnCana OlE and 02 well pads. The August 2008 survey was conducted on the pipeline section between the EnCana 02 well pad and the EnCana/Eubanks property boundary. For the February 2008 survey a snow cover of 15-20 inches prevented accurate detection and identification of existing plant species (Photo 1). Only those plants persisting above the snow were observed and recorded. During the August 2008 survey, ground and climate conditions were dry and visibility of resource features was excellent (Photo 2). A preliminary roadside survey was conducted throughout the project area to familiarize personnel with vegetation types and terrain as an aid to help determine the likelihood of the presence of threatened, endangered or sensitive wildlife and plant species. The general project location, boundaries and reported features were verified and/or recorded with the aid of a handheld global positioning system instrument (GPS) that utilized NAD83/WGS84 map datum, with all coordinate locations based on the Universal Transverse Mercator (UTM) coordinate system within Zone 13S. WWE biologists physically surveyed the area within 60 feet of both sides of the pipeline alignment to identify and locate wildlife species, wildlife sign (tracks, fecal droppings, vegetation disturbance), vegetation communities and wildlife habitats. Vegetation types were determined through field identification of plants, aerial photography and on -the - ground assessments of plant abundance. Identification of plant species was aided by using pertinent published field guides (Whitson et al. 2004, CWMA 2007, Kershaw et al. 1998). Visual searches for raptor and other bird species nests were focused on the pition pine, Utah juniper, narrowleaf cottonwood trees and rock outcrops within a 0.25 mile distance from the pipeline's centerline. Nest searches and bird identification were aided with the use of binoculars and song recognition, where needed. Photographs were taken of the general project location, surrounding vegetation and terrain, and specific biological findings. RESULTS OF SURVEY TESS Plant Species Special status species of plants that may be present in the project area, and their habitats, are listed in Table 1. Nomenclature and habitat descriptions are based on the CHNP literature (Spackman et al. 1997). Harrington beardtongue, a BLM and USFS sensitive plant species, was the only special status plant species considered as possibly occurring in the project area Table 1. Potential BLM and FS sensitive plant species Scientific Name Common Name Habitat Preference Penstemon haringtonii Harrington beardtongue Rocky loam, rocky clay loam derived from coarse calcareous parent materials; open sagebrush or, less commonly, piflon juniper. Elev. 6,500-9,200 ft. Found in Garfield County on Grass Mesa. Results: No TESS plant species and/or their habitats were observed within the survey area of the proposed pipeline. The highest elevation of project area is approximately 6,200 feet, about 300 feet below the known lower elevation limit for Harrington beardtongue. WestWater Engineering Page 5 of 19 pages August 2008 Photo 1. Snow depth and vegetation condition for survey near the EnCana 02 well pad - February 20, 2008 Photo 2. Vegetation and survey condition by the EnCana/Eubanks property boundary - August 18, 2008 WestWater Engineering Page 6 of 19 pages August 2008 Federal Listed Threatened, Endangered, Candidate Wildlife Species No federal listed threatened, endangered or candidate wildlife species occupy the area of the proposed pipeline alignment and, thus, none of these species will be affected as a result of the proposed project. Habitats for these species do not occur on the project site or the immediate area (USFWS 2008). State Listed Threatened, Endangered, Special Concern Wildlife Species WWE biologists determined that two State -listed threatened or endangered species may occur within the project area and are listed in Table 2 below (CDOW 2008b). Potential state species of special concern are also listed in Table 2. Table 2. Potential State -listed Threatened and Endangered wildlife species Scientific Name Common Name State Status Habitat Preference Haliaeetus leucocephalus Bald Eagle T Open Water — Lakes, Forested Wetlands, Shrub Dominated Wetlands, Grass/Forb Dominated Wetlands; occurs in Garfield County; common winter migrant along stream corridors; elevation: 4,000 - 8,000 ft Vulpes macrotis Kit Fox E Xeric Upland Shrub, Pinyon -Juniper, Bitterbrush Shrub, Mountain Big Sage, Wyoming Big Sage, Big Sagebrush Shrubland, Desert Shrub, Saltbrush Fans & Flats, Greasewood Fans & Flats, Sand Dune (Shrubland), Disturbed Shrubland, Mixed Rangeland, grassland complexes; elevation: 4,500 - 6,500 ft Corynothinus townsendii pallescens Townsend's Big -eared Bat SC Mesio Upland Shrub, Xeric Upland Shrub, Deciduous Oak Bitterbrush Shrub, Mountain Big Sage, Wyoming Big Sage Big Sagebrush, Shrubland, Desert Shrub, Saltbrush Fans & Flats Greasewood Fans & Flats, Sand Dune Complex (Shrubland) Disturbed Shrubland, Juniper, Pinyon -Juniper, riparian; elevation: 4,500 — 9500 ft Rana pipiens Northern Leopard Frog SC Standing or running water along w/other habitat types, Deciduous Oak, Bitterbrush Shrub, Mountain Big Sage Wyoming Big Sage, Big Sagebrush Shrubland, coniferous and deciduous woodlands; occurs in Garfield County; elevation: 4,500-11,000 ft. * E= State Endangered, T= State Threatened, SC = Species of Concern During the surveys no State -listed threatened or endangered wildlife species were observed in the area of the proposed pipeline alignment. Bald Eagle may visit areas along West Divide Creek and adjacent mesas and slopes in search of winter forage in the form of fish and dead animal carcasses. The Colorado River corridor, approximately 4.5 miles north of the pipeline, is identified as winter foraging habitat and winter range for Bald Eagle (CDOW 2008a). No kit fox denning sites were observed in the area of the pipeline alignment. Potential foraging habitat for kit fox does not occur within the area of the pipeline alignment. WestWater Engineering Page 7 of 19 pages August 2008 Habitats for bat species for roosting, breeding and hibernating, in the form of caves, mine shafts, walls and cliffs, do not occur on the pipeline ROW. Townsend's big -eared bat can occur in the area while foraging (CDOW 2008a). Potential habitat occurs along the stream corridor of West Divide Creek for northern leopard frog. Breeding habitats for northern leopard frog, in the form of shallow and quiet areas of water, do not occur in the area of disturbance for the pipeline. Birds of Conservation Concern (BOCC) Raptors: Several raptor species (birds of prey) nest, reside, forage or pass through the general area of the pipeline project. Raptor species that are common to the area include Golden Eagle, Red-tailed Hawk, American Kestrel, Cooper's Hawk and Great -horned Owl. Bald Eagle, a common winter migrant, is discussed in Table 2 of this report. Raptor species that are listed as BOCC in the Southern Rockies and the Colorado Plateau, and which may occur in the project area, are listed in Table 3. In addition to the BOCC list, seven other species of raptors that could potentially be found nesting in the pipeline project area are also listed in Table 3. Numerous pinon pine, Utah juniper, and cottonwood trees encountered along and adjacent to the pipeline alignment are of sufficient height and density for tree nesting raptors. The small -rock outcrop north of the EnCana Al OE well pad, in the vicinity of the EnCana/Eubanks property boundary, appeared marginally suitable for raptor nesting. No raptor nests were observed during the February 2008 and August 2008 field surveys. Table 3. Raptor species that may be present in the project area Common Name Scientific Name BOCC Habitat & Breeding Records Northern Harrier cyaneus y • Grassland, shrubland, agricultural areas, and marshes. Nests in areas with abundant cover (e.g., tall reeds, cattails, grasses) in grasslands and marshes. Also cattails, known to nest in high -elevation sagebrush. Cooper's Hawk Accipiter cooperii N • Cottonwood riparian to spruce/fir forests, including pifion/juniper woodlands. Nests most frequently in pines and aspen. Sharp -shinned Hawk Accipiter striates N • High density young, or even -aged, stands of coniferous forest and deciduous forests of aspen or oak brush with small stands of conifers. Red-tailed Hawk ButeoN jamaicensis • Diverse habitats including grasslands, pifion-juniper woodlands and deciduous, coniferous and riparian forests. Nests in mature trees (especially cottonwood, aspen, and pines) and on cliffs and utility poles. Swainson's Hawk Buteo swainsoni Y • Typically, arid grassland, desert, agricultural areas, shrublands and riparian forests. Nests in trees in or near open areas. Golden Eagle Aquila chrysaetos Y • Grasslands, shrublands, agricultural areas, pifion- juniper woodlands, and ponderosa forests. Prefers nest sites on cliffs and sometimes in trees in rugged areas. American Kestrel Falco sparverius N • Coniferous and deciduous forests and open terrain with suitable perches. Nests in cavities in trees, cliffs and buildings. WestWater Engineering Page 8 of 19 pages August 2008 Table 3. Raptor species that may be present in the project area Common Name Scientific Name BOCC Habitat & Breeding Records Peregrine Falconperegrines Falco Y • Pifion-juniper woodlands and coniferous and riparian forest near cliffs. Nests on ledges of high cliffs away from human disturbance. Prairie Falcon Falco mexicanus 1, • Grasslands, shrublands, and alpine tundra. Nests on cliffs or bluffs in open areas. Great Horned Owl Bubo virginianus N • Occupies diverse habitats including riparian, deciduous and coniferous forests with adjacent open terrain for hunting. Northern Saw- whet Owl Aegolius acadicus N • Mountain and foothills forest and canyon country. Significant use of pilon -juniper woodland and Douglas -fir. Long-eared Owl Asio otos N • Occupies mixed shrublands. Nests and roost in sites in dense cottonwoods, willows, scrub oak, junipers and dense forest of mixed conifers and aspens. Birds of Conservation Concern (BOCC) other than raptors: In addition to raptors discussed above, WWE biologists surveyed the proposed pipeline route for the presence of sensitive or migratory BOCC that could potentially occur in the project area. BOCC habitat and nesting records, as described in the Colorado Breeding Bird Atlas (Kingery 1998, and references therein), Colorado Birds (Andrews and Righter 1992) and Birds of Western Colorado Plateau and Mesa Country (Righter et al. 2004) in the vicinity of the pipeline are summarized in Table 4. Table 4. BLM sensitive & migratory bird species that may be present in the project area Common Name Scientific Name Habitat & BreedingRecords Pinyon Jay Gymnorhinus cyanocephalus • Prion -juniper woodlands; nests in pifions or junipers. • Confirmed breeder in Garfield County in the vicinity of the pipeline. Brewer's Sparrow Spizella breweri • Sagebrush, greasewood and rabbitbrush in desert valleys; nests in sagebrush. • Confirmed breeder in Garfield County in the vicinity of the pipeline. Black -throated Gray Warbler Dendroica nigrescens • Mature pilon -juniper woodlands; nests on horizontal branches in pifion or juniper. • Confirmed breeder in Garfield County in the vicinity of the pipeline. Lewis' Woodpecker Melanerpes lewis • Open stands of cottonwood and ponderosa pine; nests in cottonwood in riparian settings, ponderosa pine and aspen. • Possible breeder in Garfield County. The quality of the sagebrush in the area of the pipeline project is suitable for nesting Brewer's Sparrow. The pifion/juniper woodlands associated with the project area are suitable nesting habitats for Pinyon Jay and Black -throated Gray Warbler. The cottonwood riparian vegetation along West Divide Creek appears to be suitable nesting habitat for Lewis' Woodpecker. No BOCC species were observed during the February 2008 and August 2008 field surveys. Field WestWater Engineering Page 9 of 19 pages August 2008 surveys were not conducted during the typical nesting period of May 15 to August 1 and, thus, BOCC species could have completed nesting in, and vacated, the area of the pipeline project. Terrestrial Species American Elk and Mule Deer: CDOW places the proposed pipeline within Game Management Unit (GMU) 42. The pipeline is situated within mule deer and American elk overall range and winter range (CDOW 2008a). For elk, the CDOW further categorizes the entire pipeline alignment within severe winter range and a majority is within a winter concentration area (Figure 2). For mule deer, the entire pipeline is within severe winter range and a winter concentration area (Figure 3). CDOW defines "winter range" as "that part of the overall range where 90 percent of the individuals are located during the average five winters out often from the first heavy snowfall to spring green -up". CDOW defines a "winter concentration area" as "that part of the winter range where densities are at least 200 percent greater than the surrounding winter range density during the same period used to define winter range in the average five winters out of ten". "Severe winter range" is defined as "that part of the range of a species where 90 percent of the individuals are located when the annual snowpack is at its maximum and/or temperatures are at a minimum in the two worst winters out of ten." During the February 2008 surveys of the pipeline section between the EnCana OIE and 02 well pads, numerous fresh deer tracks, beds, antler rubs and fecal pellets were observed in areas where sagebrush and/or pinon pine and juniper trees were present (Photo 3). Significant browsing by deer on available sagebrush and rabbitbrush was observed where these plant species occurred, especially in the sagebrush stand west of West Divide Creek (Photo 4). During the August 2008 surveys of the pipeline section between the EnCana 02 well pad and the EnCana/Eubanks property boundary, numerous deer fecal pellets and widely scattered elk fecal pellets were observed along the pipeline ROW indicating past winter use. For the project area, during winter periods when deep snow covers low-lying vegetation, mule deer rely on the existing sagebrush above the snow for their primary food source, while elk rely primarily on available grasses for food. Adjacent areas of pinon pine and juniper trees provide necessary escape, thermal and loafing cover for deer and elk (Photo 3). Black Bear and Mountain Lion: CDOW "NDIS" mapping shows the proposed pipeline to be within overall range for black bear and mountain lion. The vegetation of the proposed project site does not provide adequate food sources for black bear to be routinely attracted to the area. However, it is not uncommon for black bear to travel through the surrounding area during periods of short natural food supplies as bears search for food. During these periods black bears may be attracted to human -related food sources such as garbage and cooking areas. Mountain lion typically follow migrating deer herds in search of deer as the primary food source. Mountain lion have large territories and are highly mobile as they search for food or new territories. Mountain lion prefer to hunt in rocky terrain with trees or shrubs. This habitat condition occurs within the West Divide Creek and Dry Hollow Creek drainages and mountain lion could travel through the area, especially when deer are present during the winter period. WestWater Engineering Page 10 of 19 pages August 2008 Photo 3. 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' Page 13 of 19 pages WestWater Engineering Small Mammals: Common small mammal species (small game, forbearers, non -game) include mountain cottontail, coyote, bobcat, striped skunk, porcupine, deer mouse and least chipmunk. Fringed myotis and spotted bat are two bat species of the area that are considered "sensitive" by the BLM and would possibly forage for airborne insects through the area of the project property (Reid 2006). Townsend's big -eared bat is previously discussed in the section on "State Listed Threatened, Endangered Special Concern Wildlife Species". Roosting, breeding and hibernating habitats for bats in the form of caves, mine shafts, walls and cliffs do not occur on the pipeline alignment. Other Bird Species: The property's sagebrush, pifion pine, Utah juniper, cottonwood riparian and grass under stories provide nesting and foraging habitats for various other migratory and non -migratory bird species, depending on the season of the year. Bird species observed during the survey included House Finch, Black -billed Magpie, Common Raven, Dark -eyed Junco and Mourning Dove. The Mourning Dove is the most common game bird in the area (Righter et al. 2004) and likely nests in trees and ground settings throughout the project area. Habitats for Wild Turkey do not occur in the area of the proposed pipeline and no sign of Wild Turkey was observed (CDOW 2008a). Reptiles: Plateau striped whiptail, sagebrush lizard, side -blotched lizard, plateau lizard, bullsnake, and western rattlesnake are reptiles common to this region and could occur in the vegetation and terrain of the project area (Hammerson 1999). Aquatic Species Amphibians: Great Basin spadefoot is an amphibian species that could occur in the project area since it is common to the pifion/juniper woodland and sagebrush shrublands of the area (Hammerson 1999). This species breeds during summer periods in temporary pools in ravines and drainages that experience water flow after heavy rain events. Potential habitat for northern leopard frog occurs along the stream corridor of West Divide Creek. Breeding habitats for northern leopard frog, in the form of shallow and quiet areas of water, do not occur in the area of disturbance for the pipeline. Fish: No fish inventories were conducted as part of this survey. West Divide Creek, in the area of the pipeline project, apparently has never have been surveyed for fish species (Elmblad 2008, pers. comm.). Therefore, it is not certain if fish species occur in West Divide Creek at the pipeline creek crossing. Water flows in West Divide Creek were observed at the time of WWE field surveys and this stream likely supports aquatic invertebrates. Fish species do occur in the Colorado River that lies approximately 4.5 miles north of the project site. The soils of the pipeline project and adjacent drainages exhibit a high degree of erosion, which periodically affects silt loads and water quality of the Colorado River during significant runoff events. IMPACTS TO WILDLIFE Wildlife Impact Assessment Construction of the pipeline will directly disturb approximately 16.95 acres of native vegetation and wildlife habitat. Foreseen direct impacts would be (1) the loss of winter range to a small number of mule deer and elk that utilize this site, (2) the loss of foraging and nesting WestWater Engineering Page 14 of 19 pages August 2008 vegetation/habitat to a small number of bird and small mammal species. The casual human disturbance that will be associated with the pipeline construction activities will indirectly cause some wildlife species to avoid the area, at least during the periods of human activity. Some species will become accustomed to the human activity, while maintaining a distance that is tolerable. The impact to wildlife as a result of the pipeline installation and operation is relatively minimal and would not affect the overall status of wildlife populations of the area. The project and its ongoing activities will contribute, however, to the overall cumulative impacts to the wildlife populations of the area that are experiencing gradual habitat loss, fragmentation, alteration and displacement through increased development. MITIGATION RECOMMENDATIONS The following suggestions for mitigation are presented for maintenance and improvement of wildlife habitat quality as well as for the prevention of human -caused wildlife losses and/or conflicts. Maintenance and Restoration of Habitat In the Rocky Mountain Region sagebrush communities have declined over the years and continue to do so as a result of development and habitat conversion. Sagebrush is a key food source for wintering mule deer on this project site and provides nesting and foraging habitat for a variety of migratory birds and small mammals (Photo 5). The grass understory of the current sagebrush vegetation and adjacent meadows provides valuable forage for wintering elk. After disturbance and removal, it generally takes decades to return sagebrush to its current condition through natural vegetative succession. Deliberate planting of sagebrush is possible, yet costly. Native Wyoming and basin big sagebrush should be considered and added to the re -vegetation plan of disturbed soils once grass/forb plantings have established themselves. Seed from the existing sagebrush vegetation should be used to create wildlife forage that has a mix of grasses, forbs and sagebrush. Any further energy exploration and/or development in this project area, such as future pipeline installations, should include efforts to maintain and/or restore the sagebrush community. Ongoing control of noxious and invasive weeds is recommended as an additional method to maintain native vegetation communities and favorable wildlife habitats. An "Integrated Vegetation and Weed Management Plan" is provided for this project in a separate report. Off-site Mitigation A temporary loss of approximately 16.95 acres of wildlife habitat will occur as result of habitat alteration for the pipeline installation. Habitat loss will be permanent in areas where vegetation reclamation is unsuccessful. Some species of wildlife will benefit when the disturbed vegetation of the pipeline corridor is reclaimed with introduced plant species; yet other species will not benefit as a result ofa change in the native vegetation complex. For example, disturbance and removal of sagebrush will cause long term winter habitat loss to mule deer until native sagebrush becomes re-established. This habitat loss contributes to the overall cumulative impacts to wildlife as a result of increased development in this region. Efforts to conduct or contribute to off-site habitat mitigation in the local area, especially for deer and elk winter range, would help offset net habitat losses to these species. Off-site mitigation could be in the form of habitat improvement or habitat acquisition that protects key habitats in perpetuity. CDOW is a key WestWater Engineering Page 15 of 19 pages August 2008 agency to contact for suggestions and recommendations toward off-site wildlife habitat mitigation. Figure 5. Deer tracks in browsed sagebrush stand north of pipeline ROW Planning for Sensitive Time Periods Mule Deer and Elk: Wintering mule deer and elk would benefit if construction and/or energy exploration/development activities avoided the critical time for these species from December 1 to April 30. Energy industry activities are commonly limited during this time period on federal lands of the area in order to accommodate wintering mule deer and elk. Table 5 displays the most critical periods for deer and elk in the area of the pipeline project. Table 5. Seasonal critical periods in the area of the East Dry Hollow Loop Phase 2 Pipeline Concern Period Deer and Elk severe (critical) winter range December 1 — April 30 Migratory Birds primary nesting season May 15 — August 1 Raptor nesting season February 1 — August 15 Migratory Birds: Vegetation clearing activities, in relation to construction and development projects, would have less impact to migratory birds if conducted outside the primary nesting season of May 15 to August 1 (Table 5). Raptors: Activities associated with the proposed project have the potential to impact raptor populations. No raptor nests were observed during the surveys and the 2008 raptor nesting season has recently ended. Construction activities between the present and February 1, 2009, would not impact raptor nesting activities. If the project cannot be completed prior to, or after, the next nesting season, the project area should be re -inventoried by qualified biologists to locate WestWater Engineering Page 16 of 19 pages August 2008 any new raptor nests. In order to reduce the potential for impacts, if any active nests are located, it will be important that the project proponent schedule construction activities such that they do not interfere with breeding, nesting and brood rearing activities (Table 5). CDOW (Craig 2002) recommended raptor nest site avoidance standards for species common to the area are summarized below (Table 6). Table 6. Colorado Division of Wildlife raptor active nest avoidance standards Species Buffer Distance 0.33 mile Avoidance Period (Seasonal Restirictions) Red-tailed Hawk February 15 to July 15 Great -horned Owl No buffer recommended None Recommended Cooper's Hawk 0.25 mile April 1 to August 15 Other Mitieation Practices Erosion Control and Soil Stability: Efforts to control soil erosion within the project area should be implemented. Disturbed soils within the pipeline corridor will be highly susceptible to erosion and downstream water quality could be negatively affected by increased soil erosion. Boring beneath West Divide Creek for the pipeline stream crossing would minimize disturbance to the soils and vegetation of the stream bed and banks, thus reducing downstream silt and sediment loads that can affect aquatic life. Fences: Numerous livestock fences will be dismantled and re -built as part of the pipeline construction project. Re -built fences that are designed for easy passage of deer and elk can allow these animals to utilize the native and planted vegetation for forage and move about the adjacent areas freely as they search for food and cover. In addition, properly designed fences will prevent deer and elk from being injured or suffering death as a result of becoming entangled as they attempt to jump over or pass through a fence. Generally, wire fences that do not exceed 42 inches in height and have 12 -inch spacing between the top two wires will allow deer and elk to pass over a fence without conflict. The BLM utilizes these fence specifications for livestock fencing on federal lands (BLM 1989). The publication presented by CDOW, "Fencing with Wildlife in Mind" provides fence designs that are friendly to wildlife and is available at the CDOW web site at http://wildlife.state.co.us/NR/rdonlyres/B0D65D61-6CB0-4746-94F1- 6EE 194E1 C230/0/fencing.pdf. Traffic: Construction and service vehicle drivers should be encouraged to maintain modest speeds to reduce the chances of striking wildlife on public and private roads. Advisory signs with this cautionary message could be placed on roadways of the area. Posting speed limit signs where collisions with wildlife appear most likely, on County Roads and energy -industry roads, will help reduce losses to wildlife as a result of vehicle encounters. Mitieation Summary Table 7 briefly summarizes the mitigation measures mentioned in this report, which can help to reduce impacts to wildlife as a result of the East Dry Hollow Loop Phase 2 Pipeline. WestWater Engineering Page 17 of 19 pages August 2008 Table 7. List of mitigation measures for wildlife Mitigating Measure Benefitin: Wildlife Maintain and restore native sagebrush vegetation Deer, elk, migratory birds, small mammals, reptiles, amphibians Off-site habitat improvement or acquisition Deer, elk, migratory birds, small mammals, reptiles, amphibians Seasonal scheduling of construction and development (see Table 5) Deer and elk, migratory birds, raptors Make livestock and property fencing wildlife friendly Deer and elk, large mammals, small mammals Control soil erosion on disturbed soils; bore beneath West Divide Creek to install pipeline Aquatic species of West Divide Creek and the Colorado River Store food & garbage securely, remove often Black bears Educate workers and guests, supervise children and small pets while outdoors Mountain lion Reduce vehicular speeds on access roads Deer and elk, large mammals, small mammals REFERENCES Andrews, R., and R. Righter. 1992. Colorado Birds: A Reference to Their Distribution and Habitat. Denver Museum of Natural History, Colorado. BLM. 1989. Bureau of Land Management Manual, Handbook H-1741-1, "Fencing". http://blm.gov. Board of County Commissioners. 2006. Garfield County Zoning Resolution of 1978, amended October, 2006. Board of County Commissioners, Building and Planning Department, Glenwood Springs, Colorado. CDOW. 2008a. Colorado Division of Wildlife. Natural Diversity Information Source. http://ndis.nrel.colostate.edu/wildlife.asp. CDOW. 2008b. Colorado Division of Wildlife. Wildlife Species of Concern. Threatened and Endangered List. CDOW Web Home Page: http://wildlife. state.co.us/W ildlifeSpecies/SpeciesOfConcern/ThreatenedEnd angeredList. Craig, Gerald R. 2002. Recommended Buffer Zones and Seasonal Restrictions for Colorado Raptors. Colorado Division of Wildlife, Denver. CWMA. 2007. S. Anthony, T. D'Amato, A. Doran, S. Elzinga, J. Powell, I. Schonle, and K. Uhing. Noxious Weeds of Colorado, Ninth Edition. Colorado Weed Management Association, Centennial. Elmblad, William. 2008. Personal communication. Fisheries information for West Divide Creek. Aquatic biologist (Retired), Colorado Division of Wildlife, Grand Junction. WestWater Engineering Page 18 of 19 pages August 2008 Hammerson, G. A. 1999. Amphibians and Reptiles in Colorado, Second Edition. Colorado Division of Wildlife, Denver. Kershaw, Linda, A. MacKinnon, and J. Pojar. 1998. Plants of the Rocky Mountains. Lone Pine Publishing, Auburn, Washington. Kingery, H. E. 1998. Colorado Breeding Bird Atlas. Colorado Bird Atlas Partnership, Colorado Division of Wildlife, Denver. NRCS. 2008. U. S. Department of Agriculture, Natural Resources Conservation Service. Web Soil Survey: http://websoilsurvey.nrcs.usda.gov/. Reid, F. A. 2006. A Field Guide to Mammals of North America, Fourth Edition. Peterson Field Guides. National Audubon Society, National Wildlife Federation, Roger Tory Peterson Institute, New York. Righter, R., R. Levad, C. Dexter, and K. Potter. 2004. Birds of Western Colorado Plateau and Mesa Country. Grand Valley Audubon Society, Grand Junction, Colorado. Spackman, S., B. Jennings, J. Coles, C. Dawson, M. Minton, A. Kratz, and C. Spurrier. 1997. Colorado Rare Plant Field Guide. Prepared for the U.S. Bureau of Land Management, the U.S. Forest Service and the U.S. Fish and Wildlife Service by the Colorado Natural Heritage Program. USFWS. 2002. Birds of Conservation Concern 2002. U.S. Fish and Wildlife Service, Division of Migratory Bird Management, Arlington, Virginia. USFWS. 2008. Threatened & Endangered Species System, Species Report. Mountain -Prairie Region (6); http://ecos.fws.gov/tess public/SpeciesReport.do?lead=6&IistingType=L Whitson, T. D. (editor), L. C. Burrill, S. A. Dewey, D. W. Cudney, B. E. Nelson, R. D. Lee, and Robert Parker. 2004. Weeds of the West, Ninth Edition. Western Society of Weed Science in cooperation with Cooperative Extension Services, University of Wyoming. Laramie WWE. 2008a. Wildlife Impact and Sensitive Areas Report, East Dry Hollow Loop Phase 1 Pipeline. Prepared for EnCana Oil and Gas (USA), Inc., March 2008, by WestWater Engineering, Grand Junction, Colorado. WWE. 2008b. Wildlife Impact and Sensitive Areas Report, East Dry Hollow Loop Phase 1 Pipeline, Addendum. Prepared for EnCana Oil and Gas (USA), Inc., August 2008, by WestWater Engineering, Grand Junction, Colorado. WWE. 2008c. Integrated Vegetation and Noxious Weed Management Plan, East Dry Hollow Loop Phase 2 Pipeline. Prepared for EnCana Oil and Gas (USA), Inc., August 2008, by WestWater Engineering, Grand Junction, Colorado. WestWater Engineering Page 19 of 19 pages August 2008 ENCANA.. EMERGENCY RESPONSE PLAN ERP Quick Reference Guide FRP (1UICK REFERENCE GUIDE Hevlaed: 20U4 -Jan -19 E.1111EFL®EMCV'LEVE . ASSESS A[ PJT Ar. errergercy b en unexpected or unplennod event that demands immediate attention and hint or could result In harm to people, damage to property or the Gmrvonmani, legs of proCeU8 Cr Pratt or negative Impact on corporate ifelaCca and reputation. Emergencies' aro defined fn throe 10 o, that are uniyoreaiy rocognizud benne, o•nd tamMar be most response partici its. Levu! t There 10 r10 potential danger to oltlhile company property or right-of•way, no threat to the outgo. and Company personnel can handle iho situation. Nonunion t0 the Supervterors and other authorities'thread tar timely t=vamplos of Leval 1 emergoncloo include: An dl of se:Swetse opal of ony magnitude that is confined to the lease and due, not flow unto private, State Or rsdefal property, or enter a stream, river, pond, dry drainage. ' An empropee orcontrau of Inury xcddam'Canner indusldal of veNcular) resulting in minor injury (hal may require medical attention, but does not require noagtafrs teen. • Mirnr nrnll.n1y damage rtwl dcwa not compromise tho sore oparaaon of vehclea or oqulpmonl. Levet 3 lee potentoet crista for the emergency lo extend beyond Company properly. Therefore, outside municipal sen,4ces and Ole elate regulatory agencies may need to bo ateibei amt krtpt ktfomiad of rhe situation. Immediate nobftcatfon to the eupervIsor le mandatory. Exempted of Level 2 ernorgendes include. • An oil or salhvetar will of any magnittrde That leovon the tomo and flOAre onto private. elate or federal property, « that armlet° a abeam. river, pond, or dry dtarnega. • An employee orcpntraaoi frdury eoddent (either induabial or vehicutar) resulttng In ltctapitalization. • Property damage reselling from Area. explosions, Impact, or contacts that exceed the safety threshold of the equipment or the structure. Level 3 Selo operating coning has boon test, ct a fatality or o potential for eorloue Injuries or baa cutlets w hos ouurred, w puirh safa11 u tteY be ieooerdized. or there is a algnirxrnt and ongoing environmental Impact. Examp!ee of Lavot 3 omergendes Include: • M oil of Gatlwgfor spill of any magnitude that enters a watercourse and threatens the Intake of a municipal or private water supply. • My leak or mid (controlled or uncontrolled) that causes tho evacuation of nearby residencos, bulldinga, or facilities. or ceusee nigrdAcent environment domoge o A tine eaploeton, Impact, or contact resulting In the destruction of company property, injury to the general public andrordamage lu private or public structures. • M employee or contractor injury accident (cider indusbtal or vehicular) residdng Ina fatally. NEWS MEDIA It to important 10 devotes) and manlain a good working rebeiormhlp vest tha news mane from Ma outset or any emergency. Tha way that both Mold and corporate parsannal Interface eith reporters wit effect the public perception of the company and the tRvulvenese or our response. The news media have a responsibility to report on the incident. We have a reeponettUly to provide accurate information Ina timely, Consistent, and professional manner. Someernoe tho particulars of Cie inc:Sent are not kneel. Until the facts are curer, arrswers uta media queries aholdd be as follows: ' On WW1. at Wane them few been a (when at lerhoro) that Invdvod company ((rxdlt(lflil..onbafovooe. eevfamnoft. A rampteto rotator/tont ..l a be lasuod by ave COM pony lea coon mo tho facto havo been determined. Until then, no further Infonnodoa bt aysIablo," Until Media Retetbons has been engaged. the Emergency Coortlinetton Officer (ECO) will deal with medbr helulfes ROLES AND REBPONSID,L ITIEG Ott010FtCMEItr2Cui vMme:tAn3CMF.NTTEAM (RNt,1f) U Enaufe that resources have been attested to meet the onsde odorants; 0 Resource any necessary expertise be meatal in developing mothp la endear procedn roe to contain the emergency and lemon the kneed. O Aureate Uta nrdgnilude std Impact of tho omergeet y acme the value areas of the corporatbn. Le., people, environment, flnendsl, and public Image. 0 Obtain the relevant Information to develop n miaow management pian and Wmmu nicatona to ma President and Corporation 0 Participate in a Review the response effort for ImpruvemoM opportunities unoe the enrereency has been carted down. (.3 Establish a reliable moans of corn munlcabone with the site. CI Provide Immodk3ba bedsdcal Input to the Stto Safety Team Lean, OSC, and ECO regarding the anticipated hazards, tura, safety of response erode and Site security. O Aselst in determining the emergency level end escalation potential. 0 Contact the Regiatei CH8 representative. A Plan to trawl to the the or arrange for forst support that can strive wooer. O Re aveflabfa to provide support wfdlo trovotiing to the ate. 0 Assist the OSC and the ECO with the edrrenisbeAat of the Incident command nmand response system. O Acelat in tho eordalnnupd. opal a ddgdltol t of Me Want. O Aselat 1n Idanuf)keg the agencies that nood in bo notified. O Atefet the ECO In making the neoeseary roguletmy nollficatln tie U Provide regular updates to the Region El4S. 0 Assess the toss potental and environmental damage. 0 AsaraawlwUt®rany regulatory violations oc erred. 0 Provide technical assistance In Ilmt additional or potential violations. 0 Coordinate or perildpate in the Investigation O Evaluate reports end enouro that proventauvo molhodo and proeedurau ere developed. Nt_triori t:Mt:tillf:Nr.,Y MANAlitii 111t:M) O l txuwtil vein Ura FFM 1 wrests the pnlanhal mea **the corporation and t ho rtistt mttgat1on options. O M©ko or support eny decisions required to mitigate risk. 0 Cernmunlcate aha emergency response ®rant, rink and risk mitigation to tore President. U Peridpeto in IN:0E00 aro the corporate more Sante uve and liaison to rho President p k take he decision to notify the Division Crieis Manager and follow-up accordingly. TAI;TICA1_ 5IIPVOR l 1tArs+ f] Coordlnale of Carry out uta esetgned rote tie rely and to ensure that the 06C or Daputy OnSlte Commander {s regularly updated on the status and any Problems or apparent risks 0 The type of support rotes and as:odated responetbilitieo ore: t] Deputy Onsite Commander - ocelots iho 08C. O Site Safety - advise fn safety procedures end Incident command system response. A triyatht Planning Chid! - technical Support, order resources, peraonnol end equipment 0 Medle OlIlcar - field media issues and general public inquiries. Lt Public Protection Officer -coordinate site Severity and puttee safety actions. i f public Evacuation Loader- 100 -AIA, advise, and ocelot publb evacuation. 0) Roadblock Crews - establish rdadblocdls to secure emergency piennIng zone. 0 Switchboard lead - reoaivea and directs Incoming wire. O Telephoto Notfkxttbn Lead - notification of nearby residents In Ina emergency planning zona, 0 Documentation Lead - asslefa the OSC with documentation requlremante. 0 Revere - stand-by personnel prepared to asset any eupporl rote. ROLES AND RESPONSISIt,rfds (confinusdy ON4IITE COMMANDER (OSC) ❑ Amon mo gee and aye situation for hazanle, ovauate the actual and potonaof risks end setablIaih a sofa location for the on'ao°na command post. Re4iliw and complere Me incident Aeseesneent Chedhtlet t� Aueaa 1118 type of support roles neouired to manage the omorgenry Typed support roles are: o Deputy On -Silo Commander ocsialo tho OSC. 0 Sitio Seely- advice on ealety procedures and incident wmnsand system response. LI togisece 110 Ding Chief - technical support, order resources, personnel and equipmenU reedit Ontor - Med media 'Saute and general public Inquiries. U Public Protccbon Officer - coordinate age security end public eofaty actions O Puerto Evacuation Leader •• locate. arMee, and assist pubic evacuation. ❑ Roadblock Crewe - eslebihh roadblocks to secure emergency planning tonne. tl 6Mtdhboard Lead-recelvua and directs incoming Lulls. 0 Telephone ReCY5cotIon lead - notification of nearby rants In the emergency p1aMirtg zone. 0 Documontation Lead- eeaiala the OSC with documentation requirements. 0 Rovers - efend-by pereonnet prepared to eeriest any support role. L3 Get hep for any injuries Not then got help for 0jhe r erre-IRe threatening events as soon as posmbla. 11 required. enlist the ad of other Company employees or contract employees In your area. U Deel(,Tnete team toads and aladgn thein to Os required support rotas with primary emphasis to ensure thal all on -ribs pene0nnol aro ocoounted for, barriers and roadblock* ere In prate and ataffee, personnel protective equipment le eveilablo and personnel end public safety Is rewired. 0 Direct the Tactics! Support Team to report beck es soon es pr>xelhie nn the Statue of Cretr assigned reepone1b•Wes. O if there ens keened persons on•efn, administer limed La te sial said and arntahye kir tranvia t to a noAk®t facility ea soon as practical Of remote, meet the ambulance. or airlift, or drive victim to hospital, clinic, doctor, etc.). 0 Conrad end inform the COEof ea events Uwe town °mom i or may occur and delle re the initial emergency revel -1, 2, 3. U Reevaluate tine potentia for the emergency Ievei to escalate In consultation with the OSC. U Aeeeso and af0rm the required an scene supper' rem in consietetee with thio OSC. O Keep the situation calm and irnatHt confidonoa in No reeponno ream end 85011. O Replace the OSC 11 a oonlractor with company personnel, inappropriate. 0 Mott Ito OSC in deciding on Immediate action to be taken. 0 ()elm** if Itis beat to go directly to the accident site or remain al a more control Iocotion. LI Establish an OraSi?e Command Poet for level 2 and 3 emergencies. 0 Arlddpete and back ell for tha OSC. 11 Coordinate reptacernont of Cho Tactical Support Tosm members depending on the dunedon of the emergency. O Coordinate notif1ceton to families and next -or -kin hue uequtr ed by the nature of the haute. to Contact the FEM. O Raley as much of the who, whet, where, winen bnformation as poasibte. the melons thea hove bean undertaken or that are underway and any immediate dedaona required. Use the Thne end Event Log. LI Provide input to tho FEM regarding the need for additional personnel, Witted ssrvrcee, company spodanelo, etc. 0 Centel the Bei Unit EMS representative end determine if they can matt with die reppons° at the site or to remain on etand.by to assist with the investigation. O Asmtef its appropriate government speedos In oatateshing an Off Silo Emergency Operations Center. including a Public and Merlin Inrptire Room for ravel 3 emergencies. Lt Keep tha I nsa of cgmmunkatron open t0 both tno MC and the FEM. O Cow It Mei the OSC on -earl 0Onm• Of the emergency. 0 Supervise the cotlection of ell relevant Information Inhaling ung 'Ovate, occident reports, Safe Wndc Parente, OSHA documents and other appropriate company end government agency documento. Secure any evidence that may be relevant to the Investigation. 0 Collectrdowment as much of the Vito, whet, where, when' lnfurnwuort as possible, ma actions that have been undertaken orthat am undenvity. and any immediate decfsto ns required, Use the Incident Assessment Checklist 0 i)eane end prloview' critical Wets and evaluate the reed toe additional rsacuroas. pt Estadtah a renege muerte rur c90941 c nrmun[cations wain the Incident commander. O where the patented for more (nµuy or damage oxide, nauwa the nature of Ile threat and f tife safety Is assured. take immediate action to minimize those dangers. Thu may Include shutting oe' energy sources, riming valves to time Mei spies, ekeneuisie tg small Ores, and caning rhe police, lire depertmert, sec., ae nuceebary. LI A eras perimeter dee iki than eatakkohed around the occident site that aecuran the area from onlookers, mora. and unauVrotizod and unnecessary personnel. Uttlze the ponce and/or shoran depelberant to eccarnpltah this hoar. Local low enforcement onccate nave an obligation to protect the public and they veil help to secure the scone If requested. 0 As soar as vertical, the ARC, ehrxdd take stops necessary to SWUM the site Tire primary reasons fol securing the site during an emergency situation ere as to rntnlrnire further danger of injury, lose, or damage, to control outside Inve10ement and to presser° the fads for a truthhd Invesligatlnn 0 Onsite aa>ses should be limned to appropriate Company personnel, n aitrartars, and emergency peroCnno{. Do nee let employee*. contractors, or any other individual who eimpy wants to look el what happened' wander about the site. LI It an unauthorized person (trespasser) refuses to honor the access limitations end antero the secured area, Inform that person That they are Mespassfn0 and demand that they Nava immedletey. If they refute to leave the prcmlaoo, telephone the local law enforcement 001111)41y and ask them to removetreeIla passer and notify tho Iroapaeeor ertd the eutreritMa that we will prizes Charges. CI Corttnually rn-aneeae the situation end oak to safe safety. U Maintain control of elI °r•eita operattana O Maintain regular communications with the ECO. O Chs' an •et dear* Menai to on scene personnel when safe to do so. 0 Once the 'a11 dear* signal has been tweed, the site must remain secured In preparation for the Investigation. Ets;�13E6llitiOl:tiCe rel? IAtir 1, (r int),' .. U Keep onnmenitallene calm and rte Wm confidence In the response team end cited. U Garrett with the ECO end re-evaluate the potential for Lye emergency leve to escalate. Confirm the current emergency level .1, 2, 3. ❑ C lnuuualy aawee Ure potential oak to the Corporation and tho deal mitigation optona. 0 Arsddpate and bed DI for the ECO. L1 Assist the ECO in deeming on immediate, near-term actions' to be taken. 0 Contact tha REM and advise on the Curren! emergency level. 0 Relay a8 much Of 1ne Wm. whet, whorn, when evomaetkm an ecocide. iha cetrono and that rove bean undertaken or that are underway and any fmmedble dscielimit Ilse ltaiTkne and Event log. U Adrbe the REM on Rha need for aostelenee from Liminess support functions such ea Human Reaouroee, Legal Courted, Mac is Rotations or Region level EMS. U Advisee on the need to assemble the REMT basad on the nature and escalation potential of tie gmmaency 13 Keep the thea of eommunlcatfon open to the ECO and the REM. O Resource additional personnel, technical services, company epeoierists, etc„ ea required by the kCO. LJ GOamfnate the relationship betwreen Me HEMJRE,T and the (cold emergency rnaporea eftal wilt upodf c emphasis on reeourco eveirabiMy and moats management. 0 Assemble se required and coordinate any corporate busineea groups such as Human Resources, Legal Counsel, or Menta Relations 10 support the needs and efforts for level 2 emergency roepu,rea. lJ Assernbki tie roqulred and coordlneta din ripmetion of the Ft EMT for lovol 3 emergency roap001e. Deetgnate support personnel to the REMT such es scribe(s). telephone conlmunitatton coordinator(e), ex. The Ones group rney not be $eeomblod fur ovary stuetton, but dealgrleted members always bo an caul. LJ Coordinate a review of tho reopenao effort For Improvement opportunities once tha emergency has been caned doom. Ll Consult the ECO for epprOpnate *call dorm' of the emergency. `�. PlUE.:A (,L. ENICRCAENICY R! 1T;f'A1i(_N(., AIM ec GM SI I L COMMA NUL It Il_ {Yellow! 00051 senior employee or company representative cn the site) PRODUCTION David Grasso W (970) 285-2601 C (070) 250-9660 R (070) 241.6839 Koss L eters W(970) 285-2725 C (970) 309-0580 Gerald Papez C (970) 250.8968 R (970) 268-5050 Shane Summers W (070) 200.2002 C (970) 379.0418 DRILLING 6 COMPLETIONS John Grublch (Drag) W(070) 285-2831. C N70)379-8735 R (970) 241.1656 Mark Balderston (Comp) W (970) 2AS-7847 C (970)829-5846 R (970) 824.8115 Dave Archuleta (Comp) C (970) 823-4805 Kirby Durchett (Comp) C (970) 250.1179 8(970)434.0910 Dan Hacking (Comp) C (970) 778.1063 PLANT/PIPELINE Gas Control O (970) 025.1020 W (970) 2852615 C (070) 301 1319 T (800) 791-7691 Brad Ankrum W (970) 285-2830 C (435) 280.1673 Rocky Erb W (970) 285-2839 C (970) 210.8571 R (970) 285-7114 rloyd Atvoy W (970) 285-2679 C (970) 319.0357 Pete Straub W (720) 878 3812 C (303) 330-6353 FI6(.0 FMER13ENr;Y MANAGkIt (Purple) Joel Fox W (720) 876-3597 C (303) 885-0101 Tim Baer W (120) 878-5059 C (720) 580-3131 Jesse Wood W (720) 878-5064 C (303) 885-5559 N E()ION EMERGENCY MANM18RI81 Damn Henke Southern Rockies W (720) 876-5157 C (303) 810-7316 Dean Purcell( Gathering Services W (720) 878-3880 C (303) 748-9810 USA REGION PRESIDENT Jeff WoJahn W (720) 876.5200 0 (303) 807-5921 5 PICEANCE ERP - TAB 13 BUSINESS SUPPORT RoBarday Human Resources W (120) 878.5104 C (303) 547.8510 Mary Viviano Legal W (720) 878-5020 C (7 20) 272.6800 Bob Thomllnsurt Business Servlces W (720) 878-5232 C (303) 882.8822 Torn Foster-- Controller W(120) 878.5537 OSNA DIVISION PRESIDENT Randy Ereamen W (403) 645-4902 C (493) 519-6631 MeotPRe Conference Line Phone: (877) 645-4333 Access Code 8765248 Chairperson PIN. 8953 rAC1ICAL SUPPORT TEAM (Orange) (11pull eupputt. such as tnanpoti,..., eouiomen) services. Strophes. etc 1 COMMUNITY RELATIONS Doug Hock W(720)876-5096 C (303) 328-7048 R (303) 777-3412 EMERGENCY CONTACTS Mlbulance - Hard Line Fire/Police- Hard Line Arnb/F ire/Poli ce - Sat/Coll Garfield County Parachute Hospital Poison Control State Patrol Sheriff Care Flight (St. Mary's) Area RuadP Wealtwr 911 911 (970) 025.1099 (970) 285-7711 (970) 6.25-1510 (800)855-9119 (970) 945- 6108 (970) 945-0453 (800) 332-4923 (877)315-7623 E118 COUt1 01NA t c N+r,t[YVIt501t Kenny Allred Parachute W(970) 285-2835 C (435) 280-1889 R (970) 245.0091 S (877) 308-2732 Chris Williams W (720)137R-5490 C (393) 888-8078 R (303) 863-6564 Danny Knutson W(970)285-2709 C (970) 300 7510 5 (877) 621-6948 Terry Oosney Parachute W (970) 285-2887 C (970) 308-0105 R (970) 858-0418 5 (877) 494.4227 Brant Gimmeson W (720) 878-5030 C (303) 810.7323 R (303) 680.1568 Safety On -Call (970) 210-8755 Environmental On -Call (970) 319-9173 AGENCY CONTACTS Bureau of Land MOm1 WY Public Service Commission COGCC CDPHE National Response Ctr Federal OSHA LEPC CO Ono Call CO PUC (8-5 M -F) (After Hrs Pager) UT One -Call (970) 244.3050 (307) 777-5722 (970) 876-3000 (877) 518-560B (800) 424-8802 (600) 321-8742 (970) 945.0453 (800) 922.1907 (303) 894-2854 (303) 826-1313 (800) 862 4111 TEAM LEAD, EHS USA Region Jim Thatcher W(720) 878-3822 C (720) 289-4850 R (3031 053-0158 SECURITY ADVISOR USA Region John Lipka W (720)876.3748 C (303)807-8974 R (30 31 687 0928 CRISIS MANAGER - OSNA On Call 24 Hours (403) 645-7777 GPS Coordinates I1eirne W' Degree N: LOSS CONTROL! INSURANCE Petor Duthie W (403) 845-3459 C (403) 471.1323 Revised' 4/17108 Outside Agencies Emergency Contact List Service Name L Address Phone 911 Emergency Air Evacuation St. Mary's Care Flight Grand Junction, CO (800) 332-4923 Ambulance & Fire Parachute Fire Dept. Parachute, CO (970) 285-7711 Hospital Glenwood Springs Valley View Hospital 1906 Blake Avenue Glenwood Springs, CO (970) 945-6535 Hospital Grand Junction St. Mary's Hospital & Medical Center 2635 N. 7th Street Grand Junction, CO (970) 244-2273 Hospital Rifle Grand River Hospital District 501 Airport Road Rifle, CO (970) 625-1510 Medical Clinic Battlement Mesa Clinic 73 Sipprelle, Suite K Parachute, CO (970) 285-7046 (800) 332.31)73 (970) 285-7630 P•iismi Control Police Parachute Police Dept, 222 Grand Valley Way Parachute, CO Sheriff Garfield County Sheriff 107 8a' Street Glenwood Springs,C() (970) 945-0453 State Patrol State of Colorado 202 Centennial Drive Glenwood Springs,CO (970) 945-6198 State Patrol (Dispatch) (970) 625-8095 ENCANA.. Spill Plan Emergency Response For Midstream Construction May 2008 TABLE OF CONTENTS 1.0 INTRODUCTION 1 2.0 SPILL PREVENTION 2 3.0 SPILL REPORTING PROCEDURES 3 3.1 INTERNAL NOTIFICATION 3 4.0 EXTERNAL SPILL REPORTING REQUIREMENTS 4 4.1 WHAT ISA REPORTABLE SPILL? 4 4.1.1 Oil, Condensate, and Produced Water 4 4.1.2. Chemical and Refined Hydrocarbon Spill 4 4.1.2.1 Release into Water 5 4.1.2.2 Releases onto the Ground 5 4.1.3 Cumulative Releases 5 4.2 WHO IS TO REPORT? 5 4.3 WHEN TO REPORT AND WHAT TO REPORT? 5 5.0 INFORMATION TO REPORT 7 5.1 INITIAL VERBAL REPORT 7 5.2 FOLLOW-UP WRITTEN REPORTS 7 5.3 VERBAL REPORTING PROCEDURES 8 6.0 GENERAL SPILL RESPONSE PLAN 10 6.1 INITIAL COMMUNICATION AND ACTION PROCEDURES 10 6.2 SUPERVISOR'S RESPONSIBILITIES 12 6.3 "FIRST RESPONSE" COMPANIES 12 7.0 SPILL MANAGEMENT 13 7.1 SMALL VERSUS LARGE SPILLS 13 7.2 REMEDIATION FOR LARGE SPILLS 13 7.2.1 Spill Containment 14 7.2.1.1 Land Containment Methods 14 7.2.1.2 Containment on Waterways 15 7.2.2 Recovery 16 7.2.3 Initial Treatment 17 7.2.3.1 Soils Handling 17 7.2.3.2 Brine Spills 18 7.2.3.3 Hydrocarbon Spills 19 EnCana Spill Plan Emergency Response May 2008 Figure 6.1 Figure 6.2 Figure 6.3 Figure 6.4 Figure 6.5 Figure 6.6 Figure 6.7 Figure 6.8 Figure 6.9 Figure 6.10 Appendix A Figures Detail of Interceptor Trench Trenches to Intercept Overland/Subsurface Flow Culvert and Earth Dam Weirs Water Bypass (Underflow) Dam Various Means of Connecting Wood or Styrofoam Booms Jellyroll and Sausage Roll Improvised Sorbent Barriers Boom Angle Deployment vs. Water Velocities Multiple Angled Booms Possible Schemes for Boom Attachment Snow Fence and Sorbent Barrier EnCana Spill Plan Emergency Response May 2008 1.0 INTRODUCTION The purpose of this document is to provide to construction, drilling, completion and production operations personnel for EnCana Oil & Gas (USA), Inc. (EnCana) the following information as it relates to spill incidents: • Reporting requirements; • Initial spill response procedures; • How to access emergency response procedures; and • Initial remediation techniques. This document is intended to provide operations personnel with sufficient information so they can readily assess a spill, know which government agency to report to, what to report, and how to address the spill. This document only covers spills that are "manageable" with the tools and resources that operations personnel have readily available to them. The document does not cover unmanageable or catastrophic spills that require specialized expertise and equipment. Regardless of the size or type of spill, if difficulties or uncertainties arise, contact EnCana's Parachute, Colorado Office staff for advice and assistance. Please refer to the contact information provided in Section 2.1. This Project Specific Spill Response Plan covers spills associated with construction, drilling, completion and production operations and services associated with them. A copy of this Project Specific Spill Response Plan is on file at the following locations: EnCana Oil & Gas (USA), Inc. Parachute, Colorado Office EnCana Spill Plan Emergency Response May 2008 1 2.0 SPILL PREVENTION Care should be taken to prevent spills, leaks and releases. Two variables must be considered if a release occurs: Rate of flow: Is variable, depending on size and location of the related failure. Maximum expected potential rate of flow is not anticipated to exceed the amount of total liquid per day transferred using the pipeline. Personnel routinely perform visual inspections of piping to detect any failures. Total quantity of fluid that could be discharged: Is variable, depending on the rate of flow though the pipeline and the location of the failure. The maximum potential release would not exceed the volume for the pipeline and tank of the fluid being transferred. EnCana has engineering controls and management practices in place to prevent spills. Secondary containment is provided for oil spills at permanent facilities. For temporary surface pipelines EnCana has designed the pipeline with block valves which isolate sections of the pipeline to limit a release should one occur. Storage tanks are designed with isolation valves to ensure containment. EnCana's standard operating procedures require that any fluid transfer though temporary surface pipelines will be manned 24-hour a day until the transfer has been completed. If a spill is discovered then the following actions and reporting will be initiated immediately. EnCana Spill Plan Emergency Response May 2008 2 3.0 SPILL REPORTING PROCEDURES Spill reporting is an important part of environmental management. There can be fines and penalties imposed upon a company for not reporting a spill if it is considered a "reportable" occurrence under the legislation. This plan outlines when a spill is reportable, and to whom the spill must be reported. In addition to reporting to regulators, EnCana's personnel must be informed, and an incident/accident report completed and submitted to the EnCana's Parachute, Colorado Office. 3.1 INTERNAL NOTIFICATION Field personnel are to notify the EnCana's Parachute, Colorado office staff immediately upon locating a spill, release, or an unnatural event. The EnCana's Parachute, Colorado office staff will notify the required local, federal and state agencies. EnCana Oil & Gas (USA), Inc. — Parachute, Colorado Office (970) 285-2600 Brad Ankrum — Piceance Midstream Operations Manager Office: (970) 285-2630 Cell: (435) 260-1673 Dewey Neely — Construction Coordinator Office: (970) 285-2632 Cell: (970) 250-9462 Bob Anderson — Construction Inspector Office: (970) 285-2622 Cell: (303) 880-0038 Jess Wood — Team Lead Office: (303) 389-5064 Cell: (303) 885-5559 Home: (303) 621-2433 Brant Gimmeson — EHS Advisor Office: (720) 876-5030 Cell: (303) 819-7323 Home: (303) 680-1568 EnCana Spill Plan Emergency Response May 2008 3 4.0 EXTERNAL SPILL REPORTING REQUIREMENTS External spill reporting requirements are state and federal requirements as they relate to "reportable" spills. 4.1 WHAT IS A REPORTABLE SPILL? 4.1.1 OIL, CONDENSATE, AND PRODUCED WATER In Colorado, spills are under the jurisdiction of the State of Colorado Oil and Gas Conservation Commission. Reportable spills are defined as: • ANY spill or release that may impact waters of the State. These spills are reportable as soon as practicable. • Any spills in excess of 20 barrels (840 US gallons) are reportable within 24 hours. • Any spills in excess of five barrels (210 US gallons) are reportable within ten days. In addition, the following types of spills are reportable. Spills that may cause an adverse effect to the environment. An adverse effect is defined as "impairment of or damage to the environment, human health, or safety or property." Specifically, it is considered the following: • Spill is confirmed to have moved off -location (including vertical migration to water table); • Contaminants are present off -location at levels generally accepted to be problematic to soil, groundwater, livestock, and vegetation. This includes third party impact such as vegetation damage, and livestock impact; • Release is into surface water or a watercourse and moves off location; • Release or spill has potential for offsite odor complaints; and • Potential for toxic or flammable release to air going offsite. For assistance in determining if a release can be classified as an "adverse effect" or "potentially hazardous to the environment", contact EnCana's Parachute, Colorado Office Staff (See contact information provided in Section 2.1). 4.1.2. CHEMICAL AND REFINED HYDROCARBON SPILL Spills of production chemicals, fuels, lubricating oils as well as other refined hydrocarbons require reporting. Reporting of ANY AMOUNT of chemicals identified as toxic substances is required. Most of these compounds are associated with the downstream refining end of the petroleum industry, and are therefore not dealt with in detail in this report. EnCana Spill Plan Emergency Response May 2008 4 4.1.2.1 Release into Water A release of ANY AMOUNT of a chemical into surface water, a watercourse or groundwater that can cause an adverse effect on the environment must be immediately reported. Typically this means water found external to a containment berm. The regulations require reporting of any amount that can cause an adverse effect. This effectively means any chemical, fuel or lubricant used in construction; drilling, completion and production operations that are spilled into surface water must be reported. The regulatory authority then decides if any further action is required. 4.1.2.2 Releases onto the Ground A release of chemical or fuels onto the ground below the State of Colorado thresholds may still be reportable. Contact the EnCana's Parachute, Colorado Office staff for specific chemical releases. 4.1.3 CUMULATIVE RELEASES Cumulative releases involve the slow release of material over a sufficiently long time that the volumes eventually become significant and represent a potential risk to the environment. Cumulative releases that typically occur at our operations are associated with load outs, tank farms, pits, etc. and are relatively confined, therefore not causing a "significant environmental effect". Although the reporting of cumulative releases is required if they are causing a significant environmental effect, it should only be done in consultation with EnCana's Parachute, Colorado Office staff. 4.2 WHO IS TO REPORT? When an operator, maintenance person or other employee discovers a reportable spill, the area supervisor of EnCana's Parachute, Colorado Office staff must be notified immediately. The area supervisor must immediately contact EnCana's Parachute, Colorado Office staff, who will contact the appropriate government agency to report the spill (see Table 1 below). EnCana's employees and contractors are not to contact regulators unless directed to do so by their manager. 4.3 WHEN TO REPORT AND WHAT TO REPORT? A release should be reported to the appropriate government agency as soon as it is discovered or at the first available opportunity. The requirement for reporting is both verbal and written depending on the severity of the spill. Government authorities will advise if a written report is required at the time the verbal report is provided. Reporting personnel should make a point of inquiring about the need for a written report. The Table on page 10 outlines the specific information to be provided verbally and in written reports for spills of oil, condensate and produced water, as well as spills of chemicals and refined hydrocarbons. Verbal reports are provided as soon as possible, written reports are provided according to the schedule required by the government agency. EnCana Spill Plan Emergency Response May 2008 5 The proposed well sites are located in Garfield County, Colorado. In the Garfield County region, the Local Emergency Planning Commission (LEPC) is the County Sheriff's Office (Table 1). When notified of a spill, they may contact state and federal agencies, but be sure to confirm this, because procedures change regularly. Written reports will be compiled and submitted by EnCana. TABLE 1: GOVERNMENT AGENCY EMERGENCY CONTACT LIST FEDERAL AGENCIES National Response Center: http://www.nrc.uscg.mil/index.html EPA Region VIII: http://www.epa.gov/region8/ BLM Glenwood Springs Energy Office http://www.blm.gov/co/st/en/fo/gsfo.html BLM Grand Junction Field Office http://www.blm.gov/co/st/en/fo/vjfo.html BLM: White River Field Office http://www.co.blm.gov/wrra/index.htm STATE AGENCIES CO Oil & Gas Conservation Commission: http://oil-gas.state.co.us/ Colorado Department of Public Health and Environment (CDPHE): http://www.cdphe.state.co.us/ Colorado Division of Oil & Public Safety: http://oil.cdle.state.co.us/ Glenwood Springs Division of Wildlife Grand Junction Division of Wildlife COUNTY AGENCIES Garfield County LEPC Jim Sears, Emergency Ops Commander (Sheriff's Office) Glenwood Springs, CO 81601 800-424-8802 (24 Hour) 303-312-6312 303-293-1788 (Spill Line) 800-227-8914 (24 Hour) 970-947-2800 970-244-3000 970-878-3800 303-894-2100 1-888-235-1101 (Spill Line) 1-877-518-5608 (24 Hour) 303-318-8547 970-947-2920 970-255-6100 970-945-0453 (24 Hour) EnCana Spill Plan Emergency Response 6 May 2008 5.0 INFORMATION TO REPORT 5.1 INITIAL VERBAL REPORT Verbal reports must be provided immediately, or as soon as practicable. Reports should include: Oil, Condensate and Produced Water • The location and time of the release; • The type and quantity of the material released; • The details of any action taken so far, and the actions proposed to be taken at the site; • A general description of the location of the release and of the immediate surrounding area; Chemicals and Refined Hydrocarbons • Date and time of the release, or the time period over which the release occurred if known; • The location of the release; • The duration, frequency and rate of release if known; • The type of chemical released and amount released, if known; • A discussion of spill containment and recovery procedures used; • A discussion of steps to be taken to prevent similar spills; • The status of the remediation program (remediated, under active remediation or to be remediated); • The remediation plan and schedule of implementation if required; and • Information regarding landowner notification. 5.2 FOLLOW-UP WRITTEN REPORTS Written reports will be provided according to the schedule required by government agency. Colorado requires the completion of Form 19. Oil, Condensate and Produced Water • Date and time of the release, or the time period over which the release occurred if known; • The location of the release; • The duration, frequency and rate of release if known; • The type of material released (produced water, etc.) including concentration of key components and amount released if known; • A discussion of spill containment and recovery procedures used; • A discussion of steps to be taken to prevent similar spills; • The status of the remediation program (remediated, under active remediation or to be remediated); • The remediation plan and schedule of implementation if required; and information regarding landowner notification EnCana Spill Plan Emergency Response May 2008 7 Chemical and Refined Hydrocarbons • A description of the circumstances leading up to the release; • A discussion of spill containment and recovery procedures used; • A discussion of steps to be taken to prevent similar future spills; and an outline of the proposed spill site reclamation program 5.3 VERBAL REPORTING PROCEDURES The following contacts must be made in the event of a reportable spill or other emergency. Refer to Table 1 for current phone numbers. Garfield County Sheriff's Department (County LEPC) The Dispatch operator will assess the need for service and will dispatch emergency Police, Ambulance, Fire and/or Hazardous Material Response as required. Construction, drilling, completion and production operations personnel will contact the Garfield County Sheriffs Department in the early stages of operation to advise them of the start of operation and to provide instructions to reach the operations site. The directions will be kept on file by the Dispatch operator and utilized if required. In the event of a spill the Garfield Sheriffs department is also the County LEPC. The LEPC Coordinator will access the situation and activate the County Hazmat response team as required. The Coordinator will also act as first contact advisor to initial clean-up efforts. The Coordinator may also contact additional regulatory agencies as required, but be sure to ask them and document the response. National Response Center (NRC) The NRC must be notified in the event of a produced water spill that could reach waters of the US. The NRC will notify the US Coast Guard. They will contact the region in which the spill occurs and a regional coordinator may be dispatched to the site depending on severity of the spill. Both the EnCana's supervisor and the Garfield County LEPC Coordinator must contact the NRC. Environmental Protection Agency (EPA) The NRC should notify the EPA regarding a spill. However, contact the EPA Region 8 Spill Line (Table 1)just to be sure. Colorado Oil & Gas Conservation Commission This division must be contacted in the event of any spill (regardless of size). This is the state emergency response commission. A representative will be sent to the site if required. EnCana Spill Plan Emergency Response May 2008 8 Bureau of Land Management (BLM): Initial contact with BLM should be to the Glenwood Springs Energy Office, Grand Junction Field Office & White River field Office (Table 1). They will then activate the BLM spill response plan. EnCana Oil & Gas (USA), Inc. The EnCana Parachute, Colorado Office staff will activate EnCana's spill response personnel if required and dispatch an environmental/spill specialist to site if the spill severity requires it. The Division Manager will dispatch the Area Production Supervisor to the site to manage spill containment and clean up operations if needed. The Area Production Supervisor will communicate with the Garfield County Sheriffs Department, the appropriate surface use agency (Bureau of Land Management, Colorado Division of Wildlife) to facilitate and manage the overall clean-up operation and ensure to that all government requirements are fulfilled. EnCana Oil & Gas (USA), Inc. - Parachute, Colorado Office: The EnCana Parachute, Colorado Office staff will provide spill clean up guidance and will prepare detailed spill reports for the regulatory agencies. Environmental spill specialists will coordinate with the Garfield County LEPC Coordinator to ensure that all government regulations and requirements are met. Environmental spill specialists will work with and advise the onsite Production Supervisor regarding remediation measures required. Spill specialists will coordinate all post clean up sampling activity and reporting. EnCana Spill Plan Emergency Response May 2008 9 6.0 GENERAL SPILL RESPONSE PLAN 6.1 INITIAL COMMUNICATION AND ACTION PROCEDURES Internal spill reporting procedures require completion of an EnCana's incident/accident report as well as a spill assessment form. Information contained on this form assists operators in providing verbal reports to government authorities. The spill assessment form also helps to characterize the spill sufficiently that appropriate response procedures can be initiated. The assessment form covers spills from all facilities associated with the upstream oil and gas sector including pipelines; however the form will be completed for reportable spills only. The form is to be completed by operators at the time the spill is discovered. It is maintained with the operator's files with a copy forwarded to EnCana. The assessment form is not submitted to any government agencies. A copy of the assessment form is contained on the following page. It is important to document all phases of a spill. If an assessment form is not available, document all information (date, time of actions, phone numbers called, contact names, etc.) on available paper and transfer it to a proper form at a later date. The most critical aspects of spill response are accurately locating the spill, isolating or shutting in the source of the spill, if possible, and containing and recovering surface fluids. All of these activities must be undertaken with due consideration for the safety of the operator, clean-up crews and the general public. Reporting of the spill should take place once initial activities to contain and recover the spill are underway. Reports should be submitted to the appropriate government agencies, as well as to EnCana. The spill assessment form as well as an incident accident report form must be completed and retained in company files. EnCana Spill Plan Emergency Response May 2008 l0 SPILL ASSESSMENT FORM FOR NOTIFICATION PURPOSES 1. Date 2. Date & Time of discovery or occurrence am. pm. 3. Person who discovered spill 4. Telephone number of person who discovered spill. 5. Location of spill (detailed) 1/4 1/4 Sec. T R County State 6. Type of material spilled: _ Oil Saltwater Oil & Saltwater Toxic Fluid, Other (Specify) 7. Source of spill (Check one): Pipeline Failure Tank Overflow Treater Upset Tank Rupture Other Unknown 8. Quantity of material spilled bbls. Unknown 9. Is the spill source stopped? Yes No. If not, what remaining maximum quantity could be spilled? Bbls. 10. Present weather conditions. 11. Forecasted weather conditions: 24 hrs. 48 hrs. 72 hrs. 12. Actions underway to stop/control the spill. EnCana Spill Plan Emergency Response May 2008 6.2 SUPERVISOR'S RESPONSIBILITIES EnCana's Parachute, Colorado Office Staff can provide advice and assistance with respect to operator responsibilities as required. Operator is responsible for the following items: • Assessing the location and source of the spill and determining if the spill can be contained; • Assessing the hazards associated with responding to a spill; • Determining the extent/impact of the spill; • Contacting and dispatching clean-up crews; • Controlling access to the spill site; • Coordinating the containment and recovery of surface fluids; • Notifying company and regulatory agencies; • Completion of spill assessment form, and incident/accident report form; • Ensuring topsoil is salvaged and segregated; and • Scheduling clean-up and repairs. 6.3 "FIRST RESPONSE" COMPANIES First response companies will provide assistance with initial containment and recovery of product. Operators should be aware of local "first response" companies that they can call on to assist in initial containment of the spill. Operators should ensure that a listing of First Response companies is compiled and appended to this document. This list should also be posted in common areas at batteries and other facility sites. Operators should ensure that this list is periodically updated so that only those companies that are current appear on the list. Willow Creek Companies Russell Fowles P. O. Box 55174 Grand Junction, CO 81505 970-256-7003 — Office 970-778-5554 - Cell Backhoe/Dirt Work/Emergency Response Rockies Construction 970-319-3167 — Bill Hoke (Parachute) 970-769-5035 — Duane Higgins 505-334-1976 — New Mexico Office Vacuum Truck Badger Davlighting 970-309-7342 — Kent Powel (Rifle) 1-877-3BADGER — USA Office Vacuum Truck EnCana Spill Plan Emergency Response May 2008 12 7.0 SPILL MANAGEMENT 7.1 SMALL VERSUS LARGE SPILLS Many spills occur that are typically very small and located within the pad area. For smaller spills, the technique for spill clean-up is basically shoveling the material into a drum, labeling the drum, and disposing of it along with other oil field waste materials as per routine disposal methods to a landfill. Generally, Class I landfills accept this type of waste, however if the material is contained within drums, Class II landfills may also accept them. Other methods of manual recovery include using cans, buckets or rakes to pick-up contaminated soils on the surface. The important point to consider when remediating small spills is to ensure that ALL of the affected soils have been removed or otherwise dealt with and all actions to clean-up, repair the problem, and prevent further occurrence are well-documented. This is most easily accomplished if the spill is dealt with immediately, thereby not allowing the spill to soak into the ground. The following illustrates the decision matrix for spill clean-up. No Spill greater than 2yd3 or larger than what can easily be cleaned up with a shovel? Shovel and deposit into bin for later transport to a landfill or rake into the soil 7.2 REMEDIATION FOR LARGE SPILLS Initiate spill response as outlined in Section 5 The information contained within this section is meant to provide guidance on initial containment, recovery and treatment measures to be applied to spills, which are "manageable" with the equipment and expertise available to the majority of EnCana's operations supervisors. This section is not meant for larger, uncontrolled spills that will require specialized equipment and expertise. EnCana Spill Plan Emergency Response May 2008 13 Spills will require initial containment and treatment so as to minimize spill clean up and site restoration work, and the potential for environmental and public health risks. This section provides information on initial treatment to stabilize the spill and prevent the worst effects from settling in before the site can be sampled and more specific treatments applied. Contact EnCana's Parachute, Colorado Office staff for any additional advice or assistance that may be required. See contact information provided in Section 2.1. 7.2.1 SPILL CONTAINMENT Containment measures may be broadly categorized into two groups: land based and water based. The options for containment make use of a wide range of locally available materials such as straw, chicken wire, and snow fencing as well as commercial sorbents and booms. 7.2.1.1 Land Containment Methods It is important to note that land spills are generally much easier to deal with than spills that have reached a waterway. Efforts should be made to prevent or stop spilled product from entering the water. Land containment of spills can be achieved by using minor earthworks such as trenches and earth dams or dykes. In the winter, snow can be used for a similar purpose. Snow is also a suitable sorbent material for spills other than salt spills. Salt will melt the snow and result in further spread of salt contamination. Trenches Trenches can be used to intercept and hold all types of fluids; however trench construction is practical only in the summer. Figures 6.1 and 6.2 (Appendix A) provide details of an interceptor trench and methods of using trenches to intercept overland and subsurface flow. Trench construction should include the use of a plastic liner. This prevents downward migration into subsurface soils and potentially groundwater. Relatively shallow trenches may be strategically placed down slope of a spill to intercept surface and subsurface spilled materials. This method is effective in preventing subsurface contamination of water and eventual discharge to streams and other water bodies. Equipment required to build a trench includes: • Backhoe, loader, bulldozer; • Shovels, picks; and • Plastic liners. EnCana Spill Plan Emergency Response May 2008 14 Dams and Dykes Earth and snow dams may be constructed across ditches or low areas to contain a spill and stop its flow. The entire flow of the spilled material and any surface drainage may be contained. Construction materials include earth, wood, sandbags, and snow. The dam or dyke should be lined with plastic sheeting to make it impermeable to the spilled product. In the winter, water may be sprayed on the snow dams or dykes to create ice. Dams should be of sufficient size to contain the entire spill volume; insufficient capacity may result in overtopping and/or failure. 7.2.1.2 Containment on Waterways Water containment measures generally include the use of booms or barriers. However, dams and weirs may also be used for ditches with flowing water and for smaller streams. Figure 6.3 illustrates the use of dams and weirs. These methods are typically used where it is necessary to allow the water to flow, while retaining lighter than water liquids such as petroleum products that separate readily from water. Water bypass or underflow dams may also be constructed on small, slow -flowing streams. Water bypass involves first constructing an earthen dyke to stop the flow of water, and then inserting a pipe below the level of the spilled material and discharging the water on the other side of the dyke. (Figure 6.4). It is important to note that the discharge end of the pipe should not be inclined above the level of the dyke or overtopping and failure will result. Weirs made from plywood, lumber and sheet metal may also be used in ditches with flowing water and may be placed to completely or partially block culvert openings. These barriers may be suspended from stakes on either side of the culvert openings and raised or lowered to maintain the desired water level while retaining the oil. Recovery of material collected behind dams and weirs may be made with the use of sorbents, skimmers or by direct suction. Other water containment measures include the use of booms or barriers. These methods are typically limited to the containment and recovery of materials that will readily separate from and float on water. The type and size of a boom will depend on the specific location and the conditions within which the boom will be used. The general principles for using a boom are: • To contain a spill of floating liquid or debris; • To deflect or divert material to a defined area so that it may be recovered; and • To protect sensitive areas from contamination. EnCana Spill Plan Emergency Response May 2008 15 There are many common items that can be used as improvised booms. These include: • Railroad ties; • Telephone or power poles; • Trees; • Lumber; • Inflated fire hose; • Styrofoam; • Chicken wire or fishing net and sorbent materials (rolled into a sausage shape). It is important that buoyant material be used within the boom; otherwise it will become water logged and sink after several hours. Rope or wire can be used to hold the boom sections in place. Natural sorbents include straw and evergreen boughs. Commercial sorbents have greater capacity to absorb oil and other petroleum products; they last longer, and can be reused. Foam sections have good sorbent capacity and excellent buoyancy. Figures 6.5 and 6.6 illustrate methods of connecting booms together and construction of a "jellyroll" or "sausage roll" using improvised sorbent barriers. Proper boom deployment is a critical consideration. The angle of the boom relative to the flow direction must be related to water flow velocity in order to achieve effective containment (Figure 6.7). Several booms arranged in parallel may be necessary to contain the entire product. These should be spaced to allow for particles, which may escape the first boom, float to the surface, and be contained by the next boom. In addition, the use of several booms permits the removal of a boom for cleaning. Figures 6.7 to 6.9 illustrate boom deployment methods. The chart at the bottom of Figure 6.7 illustrates the proper angle to deploy the boom based on water velocity. The higher the stream velocity, the more perpendicular the boom will be with respect to the crossing. In the example shown in the illustration, proper bloom deployment is at an angle of 24° for a stream flow velocity of 175 feet/minute. Fixed barriers can be used in streams with soft beds where stakes can be driven. A snow fence barrier may be installed to span the width of a stream less than 1 m deep and may be anchored at both ends with steel or wooden stakes. Stakes are driven into the stream bottom at 3 to 6 foot intervals. Straw bales or commercial sorbents are placed on the upstream side. The barrier should be angled against the current for collection of product along the shore. Multiple snow fence barriers can be used to provide backup against potential losses from upstream barriers. Net or chicken wire barriers can be constructed for the same purpose. Figure 6.10 illustrates a typical snow fence barrier. 7.2.2 RECOVERY Recovery efforts must be undertaken as soon as it is practical and safe to do so. Focus on rapid recovery of spilled materials is required to reduce and/or eliminate any potential dangers or hazards to the environment. Recovery methods generally include suction, mechanical removal and use of sorbent materials. EnCana Spill Plan Emergency Response May 2008 16 Suction Direct suction includes the use of vacuum trucks or portable pumps. Large capacity wet service shop vacs may also be used if there is an available power source nearby. Suction screens may be required to prevent hose plugging by floating debris and to prevent pump damage. Care should be taken to reduce the uptake of water in order to minimize the amount of material, which requires disposal, and prevent mixing of oil and water. Manual and Mechanical Recovery Manual and mechanical recovery, discussed previously, is an effective option for the removal of small spills. Manual recovery using hand tools (shovels, buckets, rakes, cans) is also effective in removing spills from areas that are inaccessible to larger equipment. Though labor intensive and time consuming, manual recovery is often the only method of recovery available and in some cases is the preferred method as it causes the least amount of damage to an area. Mechanical recovery using heavy equipment is an option typically reserved for larger spills. Details with respect to the use of heavy equipment are provided in local area emergency response plans. Use of Sorbent Material Sorbents are materials that soak up oil or other product. They are commonly used for final clean up and recovery of small amounts of product or to remove product in places that are inaccessible by other means of recovery. They are effective in recovering thin as well as thick layers of product; however large volumes of sorbent material may be required for thick deposits. 7.2.3 INITIAL TREATMENT Initial treatments are designed to prevent the worst effects of a spill from "settling in" before the site can be sampled and more specific treatments completed. The purpose of initial treatment is to "buy time" to allow for more extensive sampling and analytical programs to be completed and to optimize treatment programs. Initial treatments are especially important on salt spills, as these initial remediation measures will greatly assist in deterring or slowing the soil "salinization" process. These treatments should proceed within 24 to 48 hours of the spill, before the spill dries out or receives much rain. If there has been considerable rain resulting in soft soils, chemicals may have to be hand broadcast or sprayed from offsite to prevent vehicles from rutting the soil. 7.2.3.1 Soils Handling Soil handling must be minimized to the extent possible during wet soil conditions. Typically if there is a potential to create ruts that are greater than 3 inches deep, equipment should be kept off the soils and the spill should be accessed on foot and manually dealt with as explained in Section 7.2.2. However, under an emergency situation this may not always be feasible and it may be necessary to strip the topsoil ahead of the machinery when accessing the site to prevent compaction and destruction of the soil structure. In particular, soils must be handled carefully during excavations. The following measures should be taken when excavating soils: EnCana Spill Plan Emergency Response May 2008 17 • Strip the topsoil away from the area where you intend to excavate. Stockpile the topsoil away from the area where you plan to stockpile the spoil materials to avoid mixing the two together. When it is time to fill the hole, fill it first with the spoil materials, leaving a low "roach" or mound to account for settling. Respread the topsoil evenly on top of the mound being sure to completely cover the excavated area. It is particularly important during winter excavations to not replace the topsoil until the spoil pile has settled; and • If the topsoil was contaminated during the spill, treat the topsoil according to the specifications listed below for brine and hydrocarbon spills. 7.2.3.2 Brine Spills For the purposes of this document, brine is defined as: • Water with over 10 000 mg/1 (ppm) of total dissolved solids (TDS); OR • Emulsions containing over 20% brine (emulsions with less than 20% brine can be treated as a hydrocarbon spill since the oil component will be sufficiently high that it is treatable as such); OR • Previous spills have caused "bare spots" on the ground where vegetation either does not grow, grows slowly, or is characterized by plants that appear different from the surrounding area. Information on the composition and general chemistry of fluids characterizing the field areas may be obtained from fluid sample analysis reports (CORE labs etc.), and should be reviewed by operators to determine the potential for a spill to result in impacts to soils or vegetation and the need to initiate immediate response. Initial treatment for brine spills typically involves the addition of a calcium product to be applied and incorporated into the soil within the first 24 to 48 hours of clean up prior to flushing with fresh water. Operators should be aware of product suppliers in their areas, and have a listing posted or readily available at facilities. Accepted treatment chemicals include gypsum (calcium sulphate) and various formulations of calcium nitrate (liquid or granular fertilizer 15.5-0-0; Saline Soil Saver (SSS); and LCA -II). Generally calcium nitrates are preferred because of better solubility, but are prone to surface washes and may contaminate nearby water sources. Conversely, gypsum's low solubility characteristics make it unsuitable for most sites except wet areas. Other chemicals that have been used successfully on brine spills include calcium chloride (CaCl2 ), and magnesium sulphate (MgSO4 ). The following options are provided for initial remediation of brine -contaminated soils. EnCana Spill Plan Emergency Response May 2008 18 Option 1: Site Conditions: Ground is not frozen, and can be cultivated or soaked with water to incorporate the fertilizer. There are no water sources (shallow wells, sloughs, dugouts, ponds) near the spill site, and soils are average in terms of moisture levels (mesic sites). Note: Calcium nitrate should never be used in situations where site run-off could cause it to contaminate sources of drinking water for human, livestock, or wildlife consumption. Application: 2.2 lbs. calcium nitrate per 10 yards2. Procedure: Spread the fertilizer on the spill site (by hand if the soils are wet). Cultivate or water the soil well so that the fertilizer is incorporated. Soak the soil until puddles form. Let puddles soak in, and then soak the soil some more. Soak the soil as often as possible over the next few days. Calcium nitrate/polymer/flocculant formulations may also be used and are preferred when the ground is not frozen or over saturated so that the treatment soaks in immediately. These formulations are commercially available under the trade names Saline Soil Saver (SSS) and LCA -II. Application: Dilute 0.8 US gallons of SSS or 0.5 US gallons of LCA -II with 6.2 US gallons of fresh water and apply 500 US and apply to 10 square yards. Be sure to protect the concentrate from freezing. Option 2: Site Conditions: The ground is frozen and there will likely be runoff in the spring; OR the site is near water, thereby precluding the use of calcium nitrate. Application: 11 lbs. gypsum per 10 yards2. Procedure: Spread the granular gypsum on site (by hand if soils are wet). If the ground is not frozen, and cultivation of the soils is possible (the affected site is not a bog or muskeg) cultivate as soon as soils are dry enough to permit cultivation, then soak the soil until puddles form. Only soak the site once immediately prior to incorporation as the chloride salinity will aid in increasing the solubility of the gypsum. 7.2.3.3 Hydrocarbon Spills Soil contaminated by hydrocarbons must be removed from the spill site and removed to an approved landfill. EnCana Spill Plan Emergency Response May 2008 19 Appendix A Figures EnCana Spill Plan Emergency Response May 2008 20 I'iqure 6.1 /Detail .N Intertq>pM Trench EnCana Spill Plan Emergency Response May 2008 21 Figure 5.2 Ireact" to Intercept [1.erinndJJutisurtatt Flaw EnCana Spill Plan Emergency Response May 2008 22 !Mari Water [ION 6.3 CuRret and Earth Aam Weirs EnCana Spill Plan Emergency Response May 2008 23 Figure 6.4 W'attr ttymtss (Undertlowi Dam EnCana Spill Plan Emergency Response May 2008 24 aFpifn+. f Wwea %VBai. as baric u..ca�ISr. t� fl •4)."$. CR AOPE -f�! G•41O c,... �J K ti. . ate, •%' .s'aMfP STYROFOAM LOCI PI /MALAY' Figure 6.5 1'arlmu Meares of 1'nnncctllog Waal or Styrn►nnm Rn ries EnCana Spill Plan Emergency Response 25 May 2008 Figure 6.6 Jaye -oil and Sausage Roll. hnpruvived Surlieut harriers EnCana Spill Plan Emergency Response May 2008 26 40 I i l CC 60 70 110 BOLwl Ar4041 M CEC,REES Figure 6.7 Boom Angle Depkivmrnl vs, ~Viler tielneity spa el 4 en 3 cr 3 EnCana Spill Plan Emergency Response 27 May 2008 ry * err-.'r1�.5 1": - 40 I i l CC 60 70 110 BOLwl Ar4041 M CEC,REES Figure 6.7 Boom Angle Depkivmrnl vs, ~Viler tielneity spa el 4 en 3 cr 3 EnCana Spill Plan Emergency Response 27 May 2008 •CUUUyaTE6 t_.. 016 1 ,,..7.„.... +-rI f FLOW c IKiT ILL OO tMST..aM a4AS E 9on.9€110VINS rNE u o4raEau 9ham ER KZ, Figure 6J1 \Initiple,aoglnd Rannw EnCana Spill Plan Emergency Response May 2008 28 rag. Recovery 8eriu or , e.- 'zoom F iµnre i$.9 P.?r•_slble Stlttuues for Clvnm Attachment m ent iiJ IttpLapment EnCana Spill Plan Emergency Response 29 May 2008 Lr taken 1.,,TH LIC Lh.1+• Filnirt 4.19 Sanwignct and Sorlbcnt Barrier EnCana Spill Plan Emergency Response May 2008 30 BOND NO. 105073500 PERMIT BONY) KNOW ALL 13Y THE PRESENTS, That we EnCana Oil & Gas (USA) Inc., 370 I7th Street, Suite 1700, Denver, CO 80202 as Principal, and the Travelers Casualty and Surety Company of America, a Connecticut Corporation, as Surety, are held and firmly bound unto Garfield County, Board of County Commissioners, 108 8`s Street, Bldg & Plannine Dept. Glenwood Springs, CO 81601, as Obligee, in the sum of Forty -Two Thousand Three Hundred Seventy -Five and No/l 00 1$42,375.00) DOLLARS for which sum, well and truly to be paid, we bind ourselves, our heirs executors, administrators, successors and assigns, jointly and severally, firmly by these presents, WHEREAS, the Principal has been or is about to be granted a Permit for East Dry I°Iollow Loop Phase 2 - Sec 1, T7S, R92W W1/2 SE1/4, E1/2 SW 1/4, W1/2 SWI/4: Sec 36, T7S, R92W SWI/4. Sec 2, T7S R92W EI/2 SEI/4, EII2 51 1/4, W1/2 SEI /4, E1/2 SW 1/4, E1/2 SW 1/4; Sec 11, T7S, R92W Part of the NW I /4; Sec 10, T7S, R92W Part of the NEI/4 NEI/4; Sec 3, T7S, R92W Part of the SEI/4 SE1/4, by the Obligee. NOW, THEREFORE, THE CONDITION OF TIIIS OBLIGATION IS SUCH THAT if the Principal shall well and truly comply with applicable local ordinances, and conduct business in conformity therewith, then this obligation to be void. otherwise to remain in full force and effect, in no event shall the liability hereunder exceed the penal sunt hereof PROVIDED AND SUBJECT TO THF CONDITIONS PRECEDENT: 1. This obligation may be canceled by the Surety by giving thirty (30) days notice in writing of the intention to do so to the Obligee, and the Surety shall be relieved of any further liability under this Bond thirty (30) days after receipt of said notice by the Obligee, except for defaults occurring prior thereto. 2. Any claim must be presented in writing to Travelers Casualty and Surety Company of America, 4650 Westway Park Blvd., Houston, Texas 77041-2036. 3. Surety shall have no obligation to the Principal, the Obligee or any other person or entity for any loss suffered by the Principal, the Obligee or any other person or entity by reason of acts or omissions which arc or could be covered by the Obligee's or the Principal's general liability insurance, products liability insurance, completed operations insurance or any other insurance. 4. No right or action shall accrue under this Bond to or for the use or benefit of anyone other Than the named Obligee. 5. The Obligee will issue a release of this Bond within a reasonable period, but in no instance longer than thirty (30) days after termination of the Permit. IN WITNESS WHEREOF, the above bound parties have executed this instrument under their several seals this 25th day of August, 2008, the name and corporate seal of each corporate party being hereto affixed and those presents duly signed by its undersigned representative pursuant to authority of its governing body. EnCana Oil & Gas (USA) Inc. By: Principal SC G . I,JGa d, rnei rn - F t7- Tra elers Casualty and Surety Company of America Surety By 4 Teresa D. Kelly, Attorncyipt Fast- TRAVELERS .! WARNING: THIS POWER OF ATTORNEY IS INVALID WITHOUT THE RED BORDER POWER OF ATTORNEY Farmington Casualty Company Fidelity and Guaranty Insurance Company Fidelity and Guaranty Insurance Underwriters, Inc. Seaboard Surety Company St. Paul Fire and Marine Insurance Company St. Parol Guardian Insurance Company St. Paul Mercury Insurance Company Travelers Casually and Surely Company Travelers Casualty and Surety Company of America United Stales Fidelity' and Guaranty Company Attorney -In Fact No. 219916 Certificate No. 002340065 KNOW All, MEN BY THESE PRESENTS: That Seaboard Surety Company is a corporation duly organized under the laws of the State of New York, that St. Paul Fire and Maurine Insurance Company. Si. Paul Guardian Insurance Company and St. Paul Mercury insurance Company are corporations duly organized under the laws of the Stale of Minnesota. that Farmington Casualty Company, Travelers Casualty and Surety Company, and Travelers Casualty and Surely Company of America are corporations duly organized under the Taws of the State of Connecticut, that United States Fidelity and Guaranty Cotnpany is a corporation duly organized under the laws Of the State of Maryland. that Fidelity and Guaranty Insurance Company is a corporation duly organized under the laws of the State of Iowa. and ~hal Fidelity and Guaranty Insurance Underwriters. inc. is a corporation duly organized under the laws of the State of Wisconsin therein collectively called the "Companies"). and that the Companies do hereby make, constitute and appoint Teresa D. Kelly, Dan W. Burton, Benjamin D. Wilcox, and Candace D. Boshears of the City of Houston . State of Texas . their true and lawful Attorncy(s)-in-Fact, eaeli in their separate capacity if more than one is maned above. to sign. execute. seal and acknowledge any and all bonds. recognizances, conditional undertakings and other writings obligatory in the nature thereof on behalf of the Companies in their business of guaranteeing the fidelity of persons, guaranteeing the performance of contracts and executing or guaranteeing bonus and undertakings required or permitted in any actions or proceedings allowed by lana, 'ArITN SSWHEREOF. the Corn ?j j have caused this instrument to ha signed and their corporate seals to he hereto affixed, this 23rd of April Farmington Casualty Company. Fidelity and Guaranty Insurance Company Fidelity and Guaranty insurance Underwriters, Inc. Seaboard Surety Company Sl. Paul Fire mid Marine Insurancwe Company St. Paul Guardian Insurance Company St. Paul Mercury Insurance Company Travelers Casualty and Surety Company Travelers Casualty and Surely Company of America United States Fidelity and Guaranty Company State of Connecticut City of l lartturd ss. On this the 23rd da of April 2008. . before me personally appeared George %V. Thompson, who acknowledged himself to be the Senior Vice President of Farmington Casualty Company. Fidelity and Guaranty insurance Company, Fidelity and Guaranty Insurance Underwriters, Inc.. Seaboard Surety Company, Sl. Paul Fire and Marine Insurance Company. Si, Paul Conarditut Insurance Company, St. Paul Mercury Insurance Company. Travelers Casualty and Surety Cumpuny, Travelers, Casually and Surety Company ray of America. and United States fidelity and Guaranty Company, and that he, us such. being authorized so to do. executed the foregoing: irtstrunrcnt for the purposes therein contained by signing on behalf of the corporations by himself as a duly authorized officer. r- Witness Whereof, 1 hereunto set my hand and official zeal. .tlrnrnlssion expires the 30th day of lune. 2011. 58440-5-07 Printed in U.S.A. Marie C. Tctrc:udt. Notary Public WARNING: THIS POWER OF ATTORNEY IS INVALID WITHOUT THE RED BORDER WARNING: THIS POWER OF ATTORNEY 1S INVALID WITHOUT THE RED BODER 'I'llis rower of Attorney is granted under and by the authority of the following resolutions adopted by the Boards of Directors of Farmington Casualty Company, Fidelity and Guaranty Insurance Company, Fidelity and Guaranty Insurance Underwriters, Inc,. Seaboard Surety Company, St. Paul Fire and Marine Insurance Company. Si. Paul Guardian Insurance Company, St. Paul Mercury Insurance Company. Travelers Casualty and Surety Company, Travelers Casualty and Surety Company of America, and United States Fidelity and Guaranty Company, which resolutions are now in full force and effect. reading as follows: RESOLVED, that the Chairman, the President. any Vice Chairman, any Executive Vice. President, any Senior Vice President, any Vice President. any Second' President, the Treasurer, any Assistant Treasurer. the Corporate Secretary or any Assistant Secretary may appoint Attorneys -in -Fact and Agents to act for and on bet. of the Company and may give such appointee such authority as his or her certificate of authority may prescribe to sign with the Company's name and seal with the Company's seal fronds, recognizanccs, contracts of intdctttrtity. acrd other Wntillgs obligatory 111 the nature of a bond. recoglliiallee, aur conditional undertaking. and any of said officers or the Board of Directors at any time may remove any such appointee and revoke the power given Iliru or her: and it k FURTHER MOLVEI), that the Chairman, the President, any Vier Chairman, any Executive Vice President, any Senior Vice President or any Vice President may delegate all or any pan of the foregoing, authority to one or molt officers or employees of this Company. provided that each such delegation is in writing and a copy thereof is filed in the orrice of the Secretary: and it is FURTHER RESOLVED, that any bond, recognizance, contract of indemnity, or writing obligatory in the nature of a bond. recognizance. Or conditional undertaking shall he valid and binding upon the Company When (a) signed by the President, any Vice Chairman. any Executive Vice President, any Senior Vice President or any Vice President, any Second Vice President, the Treasurer. any Assistant Treasurer, the Corporate Secretary or any Assistant Secretary and duly attested and sealed with the Company's scat by a Secretary or Assistant Secretary, or (h) duly executed (under seal, if required) by one or more Attorneys -in -Fact and Agents pursuant to the power prescribed in his or her certificate or their ccniticates of authority or by one or more Company officers pursuant 10 a written delegation of authority: and it is FI.IRTHER RESOLVED, that the signature of each of the following officers: President, any Executive Vice President. any Senior Vice President, arty Vice President. any Assistant Vice President. any Secretary. any Assistant Secretary, and the seal of the Company may he affixed by facsimile to any power or attorney or to any certificate relating thereto appointing Resident Vice Presidents. Resident Assistant Secretaries or Attorneys -in -Fact for purposes only of execrating and attesting bonds and undertakings and other writings obligatory in the nature tilereof, and any such power of attorney or certificate hearing such facsimile signature or facsimile seal shall be valid and binding upon the Company and any such power so executed and certified by such facsimile signature and facsimile seal shall he valid and binding on the Company in the future with respect to any hond or understanding to which it is attached. I, Kori M. Johanson, the undersigned, Assistant Secretary. of Farmington Casualty Company, Fidelity and Guaranty Insurance Company, Fidelity and Guaranty insurance Underwriters, Inc., Seaboard Surely Company, S1. Paul Fire and Marine Insurance Company, St. Paul Guardian Insurance Company, St. Pant Mercury Insurantce Company, 'lulu lers Casually cord Surely Company, Travelers Casualty and Surety Company of America, and United States Fidelity and Guaranty Company do hereby certify than the above and foregoing is a true and correct copy of the Power of Attorney executed by said Companies, which is in full force and effect and has not been revoked. INTESTIMONY WHEREOF, 1 have hereunto set my (rand and affixed the seals of said Companies this day of t 20C Kori l t lohansciu(Assistant Secretary To verify, the authenticity of this Power of Attorney, call I-800421 -MO or contact us it www.Iravelershnnd.cnm. Please refer to the Attorney -Lt -Fact number, the above-named individuals and the details of the bond to which the power is attached. WARNING: THIS POWER OF ATTORNEY IS INVALID WITHOUT THE RED BORDER