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1.08 Application Part9
AES Peace Bear Project | Garfield County, Colorado Biological Resources Report October 2021 | A-2 Figure 2: Project Area Vegetation AES Peace Bear Project | Garfield County, Colorado Biological Resources Report October 2021 | A-3 Figure 3: Big Game Habitat (ELK) AES Peace Bear Project | Garfield County, Colorado Biological Resources Report October 2021 | A-4 Figure 4: Big Game Habitat (MULE DEER) AES Peace Bear Project | Garfield County, Colorado Biological Resources Report Appendix B Site Photographs Appendix B AES Peace Bear Project | Garfield County, Colorado Biological Resources Report October 2021 | B-1 Photograph 1 – Mixed greasewood and pinyon-juniper vegetation community Photograph 2 – Mixed greasewood and pinyon-juniper vegetation community AES Peace Bear Project | Garfield County, Colorado Biological Resources Report October 2021 | B-2 Photograph 3 – Pinyon-juniper woodlands Photograph 4 – Pinyon-juniper woodlands AES Peace Bear Project | Garfield County, Colorado Biological Resources Report October 2021 | B-3 Photograph 5 – Sagebrush shrublands Photograph 6 – Sagebrush shrublands in foreground with pinyon-juniper woodlands in the distance AES Peace Bear Project | Garfield County, Colorado Biological Resources Report October 2021 | B-4 Photograph 7 – Heavily dominant Russian knapweed population within the mapped noxious weed area (looking north) Photograph 8 – Heavily dominant Russian knapweed population within the mapped noxious weed area (looking east) AES Peace Bear Project | Garfield County, Colorado Biological Resources Report Appendix C USFWS IPaC Report Appendix C AES Peace Bear Project | Garfield County, Colorado Biological Resources Report October 2021 | C-1 AES Peace Bear Project | Garfield County, Colorado Biological Resources Report October 2021 | C-2 AES Peace Bear Project | Garfield County, Colorado Biological Resources Report October 2021 | C-3 AES Peace Bear Project | Garfield County, Colorado Biological Resources Report October 2021 | C-4 AES Peace Bear Project | Garfield County, Colorado Biological Resources Report October 2021 | C-5 AES Peace Bear Project | Garfield County, Colorado Biological Resources Report October 2021 | C-6 AES Peace Bear Project | Garfield County, Colorado Biological Resources Report October 2021 | C-7 AES Peace Bear Project | Garfield County, Colorado Biological Resources Report October 2021 | C-8 AES Peace Bear Project | Garfield County, Colorado Biological Resources Report October 2021 | C-9 AES Peace Bear Project | Garfield County, Colorado Biological Resources Report October 2021 | C-10 AES Peace Bear Project | Garfield County, Colorado Biological Resources Report October 2021 | C-11 AES Peace Bear Project | Garfield County, Colorado Biological Resources Report October 2021 | C-12 AES Peace Bear Project | Garfield County, Colorado Biological Resources Report October 2021 | C-13 AES Peace Bear Project | Garfield County, Colorado Biological Resources Report October 2021 | C-14 AES Peace Bear Ranch Solar – Land Use Change – Major Impact permit application (11/5/2021) AES Peace Bear Ranch Solar – Garfield County 48 Please see the following pages for the Phase I ESA – AES Peace Bear Ranch Solar, LLC published in January, 2021. PHASE I ENVIRONMENTAL SITE ASSESSMENT Appendix C3 Phase I Environmental Site Assessment DAVIS 2714 County Road 331,Silt, Colorado 81652 Prepared for: AES Peace Bear Ranch Solar, LLC Prepared by: January 2021 Davis Phase 1 Environmental Site Assessment 2714 County Road 331 Silt, Garfield County, Colorado January 2021 | i Contents Page No. Executive Summary ................................................................................................................. 1 Recognized Environmental Conditions and Business Environmental Risks ............................ 1 Recognized Environmental Condition (REC) .................................................................. 1 Historical REC (HREC) ................................................................................................... 1 Controlled REC (CREC) ................................................................................................. 2 Business Environmental Risk (BER) ............................................................................... 2 Findings and Conclusions ...................................................................................................... 2 Recommendations ................................................................................................................... 3 1.0 Introduction ........................................................................................................................ 4 1.1 Purpose ........................................................................................................................... 4 1.1.1 Recognized Environmental Condition (REC) ........................................................ 4 1.2 Report Users ................................................................................................................... 5 1.3 Scope of Services, Significant Assumptions, and Limitations .......................................... 5 2.0 Site Description .................................................................................................................. 8 2.1 Location and Legal Description ....................................................................................... 8 2.2 Site and Vicinity Characteristics....................................................................................... 8 2.3 Description of Structures, Roads, and Other Site Improvements ..................................... 8 2.4 Area Geology and Hydrogeology ..................................................................................... 9 3.0 User-Provided Information ...............................................................................................11 4.0 Records Review ................................................................................................................12 4.1 Environmental Records Review ..................................................................................... 12 4.1.1 Online Agency File Sources ................................................................................16 4.2 Historical Use Information.............................................................................................. 16 4.2.1 Fire Insurance Maps ............................................................................................17 4.2.2 City Directory Information ....................................................................................17 4.2.3 Historical Aerial Photographs ..............................................................................17 4.2.4 Historical Topographic Maps ...............................................................................17 4.3 Environmental Liens, Activity Use Limitations and Additional Information ...................... 18 4.4 Summary of Previous Environmental Investigations ...................................................... 18 4.5 Interviews ...................................................................................................................... 18 4.6 Site Reconnaissance ..................................................................................................... 18 4.7 Utilities and PCBs .......................................................................................................... 19 5.0 Data Gap Analysis .............................................................................................................20 6.0 Findings, Opinions, and Conclusions .............................................................................21 6.1 Findings ......................................................................................................................... 21 6.2 Opinions ........................................................................................................................ 21 6.3 Conclusions ................................................................................................................... 22 7.0 Recommendations ............................................................................................................23 8.0 Qualifications of Environmental Professionals ..............................................................24 8.1 Signatures and Qualifications ........................................................................................ 24 8.1.1 Qualifications of Environmental Professionals .....................................................24 Davis Phase 1 Environmental Site Assessment 2714 County Road 331 Silt, Garfield County, Colorado January 2021 | ii 9.0 References .........................................................................................................................26 Appendices Appendix A. Historical Topographic Map Report Appendix B. Radius Map Report with GeoCheck Appendix C. Aerial Photo Decade Package Appendix D. Project Area Site Photographs Tables Table 1. Summary of Environmental Database Search ........................................................... 12 Figures Figure 1. Project Area Location Map ........................................................................................ 10 Davis Phase 1 Environmental Site Assessment 2714 County Road 331 Silt, Garfield County, Colorado January 2021 | iii Acronyms and Abbreviations AAI All Appropriate Inquiry AES AES Peace Bear Ranch Solar, LLC AIRS Aerometric Information Retrieval System amsl Above Mean Sea Level APCD Air Pollution Control Division AST Aboveground Storage Tank ASTM American Society for Testing and Materials AUL Activity Use Limitation BER Business Environmental Risk BESS Battery Energy Storage Systems CDPHE Colorado Department of Public Health and Environment CERCLA Comprehensive Environmental Response, Compensation, and Liability Act CERCLIS Comprehensive Environmental Response Compensation and Liability Information System CFR Code of Federal Regulations CO Colorado CO LAST CO Leaking Aboveground Storage Tank Sites CO LTANKS Active and Closed OPS Petroleum Release Events in CO CORRACTS Corrective Action Report CR County Road CREC Controlled REC DC Direct Current DOD Department of Defense DOT Department of Transportation ECHO Enforcement and Compliance History EDR Environmental Data Resources, Inc. ENG Engineering EPA Environmental Protection Agency EPCRA Emergency Planning and Community Right-to-Know Act Davis Phase 1 Environmental Site Assessment 2714 County Road 331 Silt, Garfield County, Colorado January 2021 | iv ERNS Emergency Response Notification System ESA Environmental Site Assessment FIFRA Federal Insecticide, Fungicide, and Rodenticide Act FINDS Facility Index System/Facility Registry System HAZWOPER Hazardous Waste Operations and Emergency Response HDR HDR, Inc. Hist Auto Historic Gas Station or Auto Repair Shop HMIRS Hazardous Materials Information Reporting System HREC Historical REC INST Institutional kg Kilogram LBP Lead-based Paint LQG Large Quantity Generator LTANKS Leaking Aboveground Storage Tank LUST Leaking Underground Storage Tank LUST TRUST LUST Trust Reimbursement Fund MLTS Material Licensing Tracking System MW Megawatt MWh Megawatt Hours NCP National Oil and Hazardous Substances Pollution Contingency Plan NFRAP No Further Remedial Action Planned NonGen/NLR Non-generators No Longer Regulated NPDES National Pollutant Discharge Elimination System NPL National Priorities List NRC Nuclear Regulatory Commission NRCS Natural Resources Conservation Service OH SWRCY Ohio Owned Landfill List PADS PCB Activity Database System PCB Polychlorinated Biphenyl PRP Potentially Responsible Parties Davis Phase 1 Environmental Site Assessment 2714 County Road 331 Silt, Garfield County, Colorado January 2021 | v PV Photovoltaic QA Quality Assurance QC Quality Control RAATS RCRA Administrative Action Tracking System RCRA Resource Conservation and Recovery Act REC Recognized Environmental Condition ROD Record of Decision SARA Superfund Amendments and Reauthorization Act of 1986 SEMS Superfund Enterprise Management System SWF/LF Solid Waste Facilities/Landfill Sites SWRCY Solid Waste Recycler TRIS Toxic Chemical Release Inventory System TSCA Toxic Substances Control Act TSD Treatment, Storage and Disposal US United States U.S.C. United States Code USDA United States Department of Agriculture USGS United States Geological Survey UST Underground Storage Tank VCP Voluntary Cleanup Program VSQG Very Small Quantity Generator WQCD Water Quality Control Division Davis Phase 1 Environmental Site Assessment 2714 County Road 331 Silt, Garfield County, Colorado January 2021 | 1 Executive Summary HDR, Inc. (HDR) conducted a Phase I Environmental Site Assessment (Phase I ESA) of the Davis property, 2714 County Road (CR) 331, Silt, Garfield County, Colorado (CO), parcel # 217921400130 (Project Area). This Phase I ESA has been prepared for AES Peace Bear Ranch Solar, LLC (AES). AES requested a Phase I ESA of the aforementioned Project Area for their Holy Cross Photovoltaic (PV) and Battery Energy Storage Systems (BESS) Portfolio to determine its suitability for a planned greenfield solar project targeting up to 17 Megawatt (MW) Direct Current (DC) / 10 MW plus 20 Megawatt Hours (MWh) of battery storage. The Project Area is approximately 201 acres and irregularly shaped. A northwestern area and a southeastern area are divided by a small ravine located in the northeast portion of the Project Area. The majority of the Project Area is vacant rolling fields with a few trees and a wooded ravine in the northeast. Except for an old wood corral and fences, no structures or utilities were observed in the Project Area. CR 331 borders most of the Project Area’s eastern boundary, and an oil/gas infrastructure pad is located adjacent to the western central boundary. This Phase I ESA was conducted in accordance with the scope and limitations of American Society for Testing and Materials (ASTM) Practice E1527-13. This report includes a summary of the site reconnaissance, a review of environmental databases, interview excerpts, and a review of historical data sources. Any exceptions to or deletions from these ASTM practices are described later in this report. Recognized Environmental Conditions and Business Environmental Risks Recognized Environmental Condition (REC) A recognized environmental condition (REC) is defined as - the presence or likely presence of any hazardous substances or petroleum products in, on, or at a property: (1) due to release to the environment; (2) under conditions indicative of a release to the environment; or (3) under conditions that pose a material threat of a future release to the environment. No RECs were identified. Historical REC (HREC) A Historical REC (HREC) is defined as - a past release of any hazardous substances or petroleum products that has occurred in connection with the property and has been addressed to the satisfaction of the applicable regulatory authority or meeting unrestricted use criteria established by a regulatory authority, without subjecting the property to any required controls Davis Phase 1 Environmental Site Assessment 2714 County Road 331 Silt, Garfield County, Colorado January 2021 | 2 (for example, property use restrictions, activity and use limitations, institutional controls, or engineering controls). No HRECs were identified. Controlled REC (CREC) A Controlled REC (CREC) is defined as - a REC resulting from a past release of hazardous substances or petroleum products that has been addressed to the satisfaction of the applicable regulatory authority (for example, as evidenced by the issuance of a no further action letter or equivalent, or meeting risk-based criteria established by regulatory authority), with hazardous substances or petroleum products allowed to remain in place subject to the implementation of required controls (for example, property use restrictions, activity and use limitations, institutional controls, or engineering controls). No CRECs were identified. Business Environmental Risk (BER) A Business Environmental Risk (BER) is defined as - a risk which can have a material environmental or environmentally driven impact on the business associated with the current or planned use of a parcel of commercial real estate, not necessarily limited to those environmental issues required to be investigated in this practice. The following BERs were identified: • Various ditches run through the Project Area and one of the ditches located in the north central portion of the southeastern portion of the Project Area contained various debris, such as a car frame, oven, washing machine, and other metal debris. No hazardous materials were observed. Other debris may be buried in this ditch or in other ditches in the Project Area. • Oil/gas pad infrastructure is located in the general surrounding area including an oil/gas pad located adjacent to the western central boundary of the Project Area. Findings and Conclusions HDR has reached the following findings and conclusions: • The Project Area is approximately 201 acres and is irregularly shaped. A northwestern area and a southeastern area are divided by a small ravine located in the northeast portion of the Project Area. The majority of the Project Area is vacant rolling fields with a few trees and a wooded ravine in the northeast. Other than an old wood corral and fences, there are no structures in the Project Area. CR 331 borders most of the Project Area’s eastern boundary and an oil/gas infrastructure pad is located adjacent to the western central boundary. Davis Phase 1 Environmental Site Assessment 2714 County Road 331 Silt, Garfield County, Colorado January 2021 | 3 • Zero RECs, zero HRECs, zero CRECs, and two BERs were identified in connection with the Project Area. Recommendations Recommendations included in this report were developed through the investigative procedures described in the Scope of Services, Significant Assumptions, and Limitations sections of this report (see Section 2.3). These findings should be reviewed within the context of the limitations provided in the Limitations section. Based on the identified BERs, HDR makes the following recommendation: • During construction activities, either avoid the ditches in the Project Area, or excavate and properly dispose of any debris found in the ditches. HDR also recommends that AES consider the “shelf life” of Phase I documents in determining risk. ASTM Practice E1527-13: 4.6 states that a conforming “Phase I” report is valid for a period of 180 days, and may be updated during the 180 days to 1-year timeframe. The report is valid for use in any of the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) defenses ONLY if it is updated within this time frame. If greater than one year passes from the final report date, the Phase I effort would need to be repeated to remain in compliance with ASTM and the “All Appropriate Inquiry” protection. Davis Phase 1 Environmental Site Assessment 2714 County Road 331 Silt, Garfield County, Colorado January 2021 | 4 1.0 Introduction 1.1 Purpose The purpose of this Phase I Environmental Site Assessment (Phase I ESA) is to document the evaluation of the Project Area for indications of “recognized environmental conditions (RECs).” American Society for Testing and Materials (ASTM) Practice E1527-13 defines the following categories of RECs: 1.1.1 Recognized Environmental Condition (REC) The presence or likely presence of any hazardous substances or petroleum products in, on, or at a property: (1) due to release to the environment; (2) under conditions indicative of a release to the environment; or (3) under conditions that pose a material threat of a future release to the environment. De minimis conditions are not RECs (see definition below). ASTM Practice E1527-13 defines release as a release of any hazardous substance or petroleum product and shall have the same meaning as the definition of “release” in the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) 42 United States Code (U.S.C.) § 9601(22)). Historical REC (HREC) A past release of any hazardous substances or petroleum products that has occurred in connection with the property and has been addressed to the satisfaction of the applicable regulatory authority or meeting unrestricted use criteria established by a regulatory authority, without subjecting the property to any required controls (for example, property use restrictions, activity and use limitations, institutional controls, or engineering controls). Controlled REC (CREC) A REC resulting from a past release of hazardous substances or petroleum products that has been addressed to the satisfaction of the applicable regulatory authority (for example, as evidenced by the issuance of a no further action letter or equivalent, or meeting risk-based criteria established by regulatory authority), with hazardous substances or petroleum products allowed to remain in place subject to the implementation of required controls (for example, property use restrictions, activity and use limitations, institutional controls, or engineering controls). Additional conditions that are not included under the definitions of a REC, but are defined by ASTM Practice E1527-13 include: De Minimis A condition that generally does not present a threat to human health or the environment and that generally would not be the subject of an enforcement action if brought to the attention of appropriate governmental agencies. Conditions determined to be de minimis conditions are not RECs nor HRECs or CRECs. Davis Phase 1 Environmental Site Assessment 2714 County Road 331 Silt, Garfield County, Colorado January 2021 | 5 Business Environmental Risk (BER) A risk which can have a material environmental or environmentally-driven impact on the business associated with the current or planned use of a parcel of commercial real estate, not necessarily limited to those environmental issues required to be investigated in this practice. Consideration of BER issues may involve addressing one or more non-scope considerations. 1.2 Report Users HDR, Inc. (HDR) received authorization from AES Peace Bear Ranch Solar, LLC (AES) to conduct a Phase I ESA of the Project Area. This Phase I ESA has been prepared for AES and only AES has the right to rely on the contents of this Phase I ESA without written authorization. 1.3 Scope of Services, Significant Assumptions, and Limitations The services provided for this project consisted of the following: • Provide a description of the Project Area including current land uses (Section 2.0). • Provide a general description of the topography, soils, geology, and groundwater flow (Section 2.4). • Provide a summary of user provided information (Section 3.0). • Review reasonably ascertainable and reviewable regulatory information published by federal, state, local, tribal, health, and/or environmental agencies pertaining to the Project Area (Section 4.1). • Review historical data sources for the Project Area, including aerial photographs, topographic maps, fire insurance maps, city directories, and other readily available development data (Section 4.2). • Provide a summary of environmental liens of the Project Area (Section 4.3). • Provide a summary of previous investigations of the Project Area (Section 4.4). • Interview the current owner of the Project Area and interview other persons with knowledge of the development history of the Project Area (Section 4.5). • Conduct an area reconnaissance and an environmental review—including a visual review of adjoining properties—with a focus on indications of hazardous substances, petroleum products, polychlorinated biphenyls (PCBs), wells, storage tanks, solid waste disposal pits and sumps, and utilities (Sections 4.6 and 4.7). • Determine data gaps in the information obtained and comment on their significance in identifying RECs for the Project Area (Section 5.0). Davis Phase 1 Environmental Site Assessment 2714 County Road 331 Silt, Garfield County, Colorado January 2021 | 6 • Prepare a written report of methods, findings, opinions and conclusions (Section 6.0). The goal of this scope of services is to assist the user in identifying conditions in the Project Area that may indicate risks regarding hazardous materials storage, disposal, or other impacts. The resulting report may qualify the user for relief from liabilities as one of three “defenses” identified in the 2002 Brownfields Amendments to the CERCLA Section 9607 (All Appropriate Inquiry [AAI] subsections). These three defenses include: 1. The “innocent landowner” defense to potential liabilities under 42 U.S.C. § 9601 2. The “contiguous project corridor owner” defense pursuant to 42 U.S.C. § 9607q 3. The “bona fide prospective purchaser” defense pursuant to 42 U.S.C. §9607r Federal regulations at (42 U.S.C §9601(35)(A) & (B),§9607(b)(3), §9607(q); and §9607(r)), promulgated by the United States Environmental Protection Agency (U.S. EPA), require that liability release be based (in part) on completion of AAI prior to purchase of a property. Those inquiries are documented by Phase I reports, or ESAs. EPA has agreed that the recently developed ASTM guidance (ASTM Practice E1527-13: 3.2.6) specifies and interprets AAI requirements. A user is defined by ASTM Practice E1527-13: as the party seeking to use Practice E1527 to complete an ESA of the project area and may include a potential purchaser of land in the project area, a potential tenant of the project area, an owner of land in the project area, a lender, or a project area manager. Investigative areas not included in the standard ASTM ESA scope include: asbestos, lead-based paint (LBP), lead in drinking water, radon or urea formaldehyde, wetland issues, regulatory compliance, cultural and historic resources, industrial hygiene, health and safety, ecological resources, endangered species, and high voltage power lines. Indoor air quality from sources such as mold and asbestos is not included in the ASTM standard except to the extent that indoor air impacts are related to a Superfund release and/or caused by releases of hazardous substances into subsurface soil or groundwater (vapor intrusion). The potential for vapor encroachment or intrusion into structures in the Project Area is considered and identified from on site or off site sources based on the experience of the Environmental Professional. The scope of services for ESA projects also does not include the completion of soil borings, the installation of groundwater monitoring wells, or the collection of soil or groundwater samples. State and national policies and standards relevant to vapor intrusion are in flux and subject to change. HDR has made certain assumptions in preparing the scope of this assessment: • Data gathered from public information sources (i.e., libraries or public regulatory agencies) are accurate and reliable. Davis Phase 1 Environmental Site Assessment 2714 County Road 331 Silt, Garfield County, Colorado January 2021 | 7 • Site operations reflect site conditions relative to potential releases and no intentional concealment of environmental conditions or releases has occurred. • Interview information is directly reported as gathered by the assessor and is limited by the accuracy of the interviewee’s recollection and experience. • Published geologic information and site observations made by the environmental professional are used to estimate likely contaminant migration pathways in the subsurface. These estimates by the environmental professional are limited in accuracy and are generally cross-referenced with existing information about similar sites and environmental releases in the area. • Regulatory information is limited to sites identified after the late 1980s because reliable records were not kept by regulatory agencies prior to that time frame. The findings and conclusions presented in this report are based on the procedures described in ASTM Practice E1527-13, informal discussions with various agencies, a review of the available literature cited in this report, conditions noted at the time of this Phase I ESA, and HDR’s interpretation of the information obtained as part of this Phase I ESA. The findings and conclusions are limited to the specific project and properties described in this report, and by the accuracy and completeness of the information provided by others. An ESA cannot entirely eliminate uncertainty regarding the potential for RECs. Conducting this assessment is intended to reduce, but not eliminate, uncertainty regarding the potential for RECs in connection with a project area within reasonable limits of time and cost. In conducting its services, HDR used a degree of care and skill ordinarily exercised under similar circumstances by reputable members of its profession practicing in the same locality. This Phase I ESA conforms to the level of documentation required in ASTM Practice E1527-13. However, HDR may omit discussion of certain records, i.e., sources deemed, in HDR’s professional opinion, to be inapplicable, or of limited value, to the specific needs of this client. In accordance with ASTM, however, if the lack of available documentation results in a data gap, this data gap is identified herein and its significance is discussed. Davis Phase 1 Environmental Site Assessment 2714 County Road 331 Silt, Garfield County, Colorado January 2021 | 8 2.0 Site Description 2.1 Location and Legal Description The Project Area is located at the Davis property, 2714 County Road (CR) 331, Silt, Garfield County, Colorado (CO), parcel # 217921400130 (Project Area). The Project Area is approximately 201 acres and is irregularly shaped. A northwestern area and a southeastern area are divided by a small ravine located in the northeast portion of the Project Area. The majority of the Project Area is vacant rolling fields with a few trees and a wooded ravine area in the northeast. CR 331 borders most of the Project Area’s eastern boundary, and an oil/gas infrastructure pad is located adjacent to the western central boundary. See Figure 1 for the Project Area location. See Section 4.6 for more details on the Project Area. 2.2 Site and Vicinity Characteristics The Project Area is located on a mesa that is relatively flat on top with slight rolling hills and a steep downward grade on the eastern side. The United States Geological Survey (USGS) 7.5-minute quadrangle maps for Silt indicate that the the northwest portion of the Project Area lies on top of a flat mesa with an elevation of approximately 5,800 feet above mean sea level (amsl). The southeastern portion has a high elevation of approximately 5,775 feet amsl in the southeast corner and has a steep downward grade on the eastern side to approximately 5,600 ft amsl. A ravine located in the northeastern portion of the Project Area separates it into northwest and southeast portions. The ravine slopes downwards to the northeast from approximately 5,800 to 5,600 ft amsl (Environmental Data Resources, Inc. [EDR] 2020a). See Appendix A. 2.3 Description of Structures, Roads, and Other Site Improvements An unnamed, unmarked gravel road (referred to as Chair Bar Road on maps) runs west off of CR 331 approximately 300 feet north of the Project Area. Approximately 2,000 feet west of CR 331 an unmarked dirt road runs south off of Chair Bar Road to the northwestern corner of the Project Area. At the northeast corner of the Project Area, an unmarked jeep trail leads to the west from CR 331 and into the northeastern portion of the Project Area. This road was used to access the Project Area for the site reconnaissance. Approximately 500 feet south of the southeastern corner of the Project Area, an unnamed, unmarked gravel road (referred to as Alta Mesa Road on maps) runs west off of CR 331 and leads to a dirt road that runs north into the southeastern portion of the Project Area. Alta Mesa Road was impassable during the site reconnaissance. Davis Phase 1 Environmental Site Assessment 2714 County Road 331 Silt, Garfield County, Colorado January 2021 | 9 The only structures in the Project Area are an old wood corral and several wood and wire mesh fences. See Section 4.6 for more details on the Project Area. 2.4 Area Geology and Hydrogeology The geology of the Project Area consists of the Wasatch Formation (including Fort Union equivalent at base) and the Ohio Creek Formation (USGS 2013). According to the United States Department of Agriculture’s (USDA) Natural Resources Conservation Service (NRCS) web soil survey (USDA 2020), the Project Area consists of the following four soil types: • Olney Loam, 6-12% slopes. It is well drained with medium runoff and is found on valley sides and alluvial fans. • Potts Loam, 3-6% slopes. It is well drained with high runoff and is found on valley sides, benches, and mesas. • Potts Loam, 6-12% slopes. It is well drained with high runoff and is found on valley sides, benches, and mesas. • Torriorthents-Camborthids-Rock outcrop complex, steep. This soil type is located in the northeastern ravine area and the eastern downward sloping area. It is well drained with high runoff and is found on mountainsides. Dry Hollow Creek runs parallel to CR 331 and adjacent to the east of the Project Area. The creek flows from south to north and empties into the Colorado River, which flows to the west. A reservoir is located adjacent to the southwest corner of the Project Area, and a pond is off site near the northwest corner of the Project Area. Seasonal intermittent ponds are located in the northeastern ravine of the Project Area; however, they were empty during the site reconnaissance in November 2020. Davis Phase 1 Environmental Site Assessment 2714 County Road 331 Silt, Garfield County, Colorado January 2021 | 10 Figure 1. Project Area Location Map Davis Phase 1 Environmental Site Assessment 2714 County Road 331 Silt, Garfield County, Colorado January 2021 | 11 3.0 User-Provided Information AES provided project information and descriptions to HDR. A User Questionnaire was also filled out on November 25, 2020 by Joshua Mayer, Business Development Manager, AES (ASTM 2020). Mr. Mayer stated the following: • The property is presently rural pasture land and was used for cattle ranching in the past. • The property has no known liens or activity use limitations. • The property has no known chemical storage. • The title report shows several oil and gas leases but it is uknown if activity took place. There are also no visible signs of infrastructure within property boundaries. • The property has no known spills or cleanup. • AES only knows that the property was previously used for cattle ranching. As such, no releases are expected to be present. It is not clear if past oil and gas leases have been physically acted upon within the property's boundaries, although neighboring parcels have evidence of infrastructure. This information was reviewed by HDR and incorporated into this Phase I ESA report. Davis Phase 1 Environmental Site Assessment 2714 County Road 331 Silt, Garfield County, Colorado January 2021 | 12 4.0 Records Review 4.1 Environmental Records Review EDR was contracted by HDR to complete a database search of federal, state, and tribal environmental records for the Project Area and facilities in the designated search radii in proximity to the Project Area. A computerized environmental information database search was performed by EDR on November 6, 2020. The databases searched included federal, state, local, tribal, and EDR proprietary databases as defined by ASTM Practice E1527-13. The results of the database search are summarized in Table 1 and in the following paragraphs. A complete copy of the EDR environmental database report (EDR Area/Corridor Report) is included in Appendix B (EDR 2020b). Table 1. Summary of Environmental Database Search Database Description Facilities Listed Sites of Concern to the Project Area Federal DOD Department of Defense (DOD) sites. This data set consists of federally owned or administered lands, administered by the Department of Defense, that have any area equal to or greater than 640 acres of the United States, Puerto Rico, and the US Virgin Islands. 0 0 NPL The National Priorities List (NPL) is the US EPA’s database of uncontrolled or abandoned hazardous waste facilities that have been listed for priority remedial actions under the Superfund program. 0 0 Delisted NPL The National Oil and Hazardous Substances Pollution Contingency Plan (NCP) established the criteria that the EPA uses to delete sites from the NPL. 0 0 SEMS Superfund Enterprise Management System tracks hazardous waste sites, potentially hazardous waste sites and remedial activities performed in support of EPAs Superfund Program. Former Comprehensive Environmental Response Compensation and Liability Information System (CERCLIS) list. 0 0 SEMS—Archive Superfund Enterprise Management System (SEMS) Archive, formerly the CERCLIS No Further Remedial Action Planned (NFRAP) database, is a compilation of facilities that the EPA has investigated or is currently investigating for a release or threatened release of hazardous substances pursuant to the CERCLA of 1980. NFRAP refers to facilities that have been removed and archived from its inventory of CERCLA sites. 0 0 Davis Phase 1 Environmental Site Assessment 2714 County Road 331 Silt, Garfield County, Colorado January 2021 | 13 Table 1. Summary of Environmental Database Search Database Description Facilities Listed Sites of Concern to the Project Area RCRA TSDF The EPA maintains a database of Resource Conservation and Recovery Act (RCRA) facilities associated with the treatment, storage, and disposal (TSD) of hazardous materials. 0 0 RCRA VSQG RCRA - Very Small Quantity Generators (VSQG) (Formerly Conditionally Exempt Small Quantity Generators). 0 0 RCRA LGQ The RCRA Large quantity generators (LQG) produce at least 1,000 kilograms (kg)/month of nonacutely hazardous waste or 1 kg/month of acutely hazardous waste. 0 0 RCRA NonGen/NLR RCRA non-generators, no longer regulated. 0 0 CORRACTS Corrective Action Report: CORRACTS identifies hazardous waste handlers with RCRA corrective action activity. 0 0 2020 COR ACTION This RCRA cleanup baseline includes facilities expected to need corrective action. 0 0 ROD Record of Decision (ROD) documents mandate a permanent remedy at an NPL site. 0 0 CONSENT Major legal settlements that establish responsibility for cleanup. 0 0 PRP A listing of verified Potentially Responsible Parties (PRP). 0 0 CO ERNS Emergency Response Notification System (ERNS) records and stores information on reported releases of oil and hazardous substances. 0 0 HMIRS Hazardous Materials Information Reporting System (HMIRS) contains hazardous material spill incidents reported to US Department of Transportation (DOT). 0 0 US ENG Controls A listing of sites with engineering controls in place. 0 0 US INST Controls A listing of sites with institutional controls in place. 0 0 AUL A listing of sites with Activity Use Limitations (AULs). 0 0 Davis Phase 1 Environmental Site Assessment 2714 County Road 331 Silt, Garfield County, Colorado January 2021 | 14 Table 1. Summary of Environmental Database Search Database Description Facilities Listed Sites of Concern to the Project Area PADS PCB Activity Database System (PADS) identifies generators, transporters, commercial storers, and/or brokers and disposers of PCBs who are required to notify the EPA of such activities. 0 0 RAATS RCRA Administrative Action Tracking System (RAATS) contains records based on enforcement actions issued under RCRA pertaining to major violators and includes administrative and civil actions brought by the EPA. 0 0 MLTS Material Licensing Tracking System (MLTS) is maintained by the Nuclear Regulatory Commission (NRC) and contains a list of approximately 8,100 sites that possess or use radioactive materials and are subject to NRC licensing requirements. 0 0 TRIS Toxic Chemical Release Inventory System (TRIS) identifies facilities that release toxic chemicals into the air, water, and land in reportable quantities under the Superfund Amendments and Reauthorization Act of 1986 (SARA) Title III, Section 313. 0 0 FINDS Facility Index System/Facility Registry System (FINDS) contains both facility information and “pointers” to other sources that contain further detail. 0 0 TSCA Toxic Substances Control Act (TSCA) identifies manufacturers and importers of chemical substances included on the TSCA Chemical Substance Inventory list. 0 0 FTTS Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA)/TSCA Tracking System, FIFRA/TSCA. FTTS tracks administrative cases, pesticide enforcement actions, and compliance activities related to FIFRA, TSCA, and Emergency Planning and Community Right-to-Know Act (EPCRA). 0 0 ECHO Enforcement and Compliance History (ECHO) provides compliance and enforcement information. 0 0 MINES/ABADON ED MINES A listing of mines since 1971. 0 0 AIRS/US AIRS Aerometric Information Retrieval System (AIRS). A listing of Air Pollution permits and emissions data. 0 0 Davis Phase 1 Environmental Site Assessment 2714 County Road 331 Silt, Garfield County, Colorado January 2021 | 15 Table 1. Summary of Environmental Database Search Database Description Facilities Listed Sites of Concern to the Project Area NPDES National Pollutant Discharge Elimination System (NPDES). A listing of permitted facilities from the Water Quality Control Division (WQCD). 0 0 State and Local SWF/LF State Landfill/ Historical Landfill The Colorado Department of Public Health and Environment (CDPHE) maintains a list of Solid Waste Facilities/Landfill Sites (SWF/LF), including active and inactive, permitted and nonpermitted solid waste disposal facilities. 0 0 SWRCY Solid Waste Recycler (SWRCY) list of recyclers in Colorado. 0 0 Asbestos Asbestos abatement and demolition projects. 0 0 CO VCP A listing of state and tribal Voluntary Cleanup Program (VCP) priority sites. 0 0 CO LUST Leaking Underground Storage Tanks (LUST) Site List - CDPHE provides a database of the LUSTs within the specified area based on LUST incident reports and cleanup actions underway. 0 0 CO LUST TRUST LUST Trust reimbursement fund to clean up petroleum contamination. 0 0 CO UST Underground Storage Tank (UST) Database - The State Oil Inspector’s Office maintains a Tank List, including USTs. USTs are regulated under subtitle I of RCRA. 0 0 CO AST Registered aboveground storage tanks (ASTs). 0 0 CO LAST A listing of Leaking Aboveground Storage Tank sites. This list is no longer maintained. 0 0 CO Spills CDPHE lists chemical spills and incidents referred to the ERNS. 0 0 CO AIRS A listing of Air Pollution Control Division (APCD) permits and emissions data. 0 0 Davis Phase 1 Environmental Site Assessment 2714 County Road 331 Silt, Garfield County, Colorado January 2021 | 16 Table 1. Summary of Environmental Database Search Database Description Facilities Listed Sites of Concern to the Project Area Brownfields A brownfield site is an industrial or commercial project corridor that is abandoned, inactive, or underutilized, on which expansion or redevelopment is complicated because of the actual or perceived environmental contamination. 0 0 Hist Auto Historic gas stations or auto repair shops. 0 0 CO LTANKS Active and Closed OPS Petroleum Release Events in Colorado. 0 0 OH SWRCY Ohio owned landfill list. 0 0 No sites were listed on or within the ASTM search distances to the Project Area. The database listed 15 orphan sites, which are facilities that cannot be accurately mapped due to improper address information. HDR reviewed the orphan sites and determined none of the sites are in proximity to the Project Area. 4.1.1 Online Agency File Sources HDR conducted a web search on November 17, 2020, to supplement the database search and determine whether any other potentially contaminated sites were located within a 0.25 mile radius of the Project Area. HDR searched the following agency websites: • The CDPHE Voluntary Cleanup and Redevelopment Program (CDPHE 2020c) https://www.colorado.gov/pacific/cdphe/voluntary-cleanup • The CDPHE Brownfields Program (CDPHE 2020d) https://www.colorado.gov/pacific/cdphe/brownfields No additional information was obtained from these online sources. 4.2 Historical Use Information The objective of reviewing historical use information is to develop a history of previous land uses at and in the vicinity of the Project Area and to assess these uses for potential hazardous materials impacts that may affect the Project Area. HDR reviewed those historical sources that were reasonably ascertainable and likely to provide useful information, as defined by the ASTM Practice E1527-13 standard. Davis Phase 1 Environmental Site Assessment 2714 County Road 331 Silt, Garfield County, Colorado January 2021 | 17 4.2.1 Fire Insurance Maps Due to its rural setting, the Project Area is in an unmapped area for Sanborn Fire Insurance Maps. 4.2.2 City Directory Information Due to it rural setting, City Directories are not available for the Project Area. 4.2.3 Historical Aerial Photographs Historical aerial photographs are a valuable resource that allow the environmental professional to review features of the Project Area and surrounding properties over a long period of time. HDR reviewed an Aerial Photo Decade Package of historical aerial photographs provided by EDR for the following years: 1955, 1960, 1979, 1982, 1993, 2009, 2013, and 2019 (EDR 2020c) (see Appendix C). 1955 - 1979: The Project Area appears as vacant land. There is a small structure along CR 331 on the eastern boundary of the Project Area. CR 331, Chair Bar Road, and Alta Mesa Road are all present. 1982: The northwest portion of the Project Area is used for agriculture. Three ponds are located along the ravine in the northeast portion of the Project Area, a pond is located near the southeast corner and a reservoir is adjacent to the southwest. The small structure along the eastern boundary is stil present. 1993: The aerial photographs look essentially the same as in 1982 except there are a few structures present near the intersection of CR 331 and Alta Mesa Road. 2009 - 2019: The Project Area appears vacant. The structure along the eastern boundary is no longer present. There are two ponds in the ravine area, and one pond near the southeast corner. A reservoir is adjacent to the southwest. An oil/gas infrastructure pad is adjacent to the western central boundary. There are several ranches and an oil/gas infrastructure pad to the north. The northwest portion of the Project Area appears to have been used for agriculture in the 1980s and 1990s. The rest of the Project Area appears to have been vacant except for one small structure along the eastern boundary from approximately 1955-2009. 4.2.4 Historical Topographic Maps Historical topographic maps provide an overview of the area relative to potential previous land uses. HDR reviewed historical topographic maps of the Project Area provided by EDR (EDR 2020a) (see Appendix A). The following USGS 7.5 minute series topographic maps were reviewed: Silt (1962/1963, 1982, 1987, 2013), Hunter Mesa (1962/1963, 1982, 1987, 2013), and Grand Hogback (1906,1910). 1906 – 1910: The topographic maps are not detailed enough to show any useful information. Davis Phase 1 Environmental Site Assessment 2714 County Road 331 Silt, Garfield County, Colorado January 2021 | 18 1962/1963: The Project Area appears vacant except for one small structure along the eastern boundary. CR 331, Chair Bar Road, and Alta Mesa Road are all present. 1982 - 1987: The topographic map appears essentially the same as in 1962/1963 except there are two small structures along the eastern boundary. There are also three ponds located in the northeastern ravine area, one pond located near the southeast corner of the Project Area, and a reservoir adjacent to the southwest of the Project Area. 2013: This topographic map isn’t as detailed as the previous maps. The structures along the eastern boundary are no longer depicted. Otherwise, the Project Area appears the same as in 1987. Indications of environmental impacts were not identified during the review of historical topographic maps. 4.3 Environmental Liens, Activity Use Limitations and Additional Information Environmental liens and activity and use limitations (AULs) were searched as part of the database search discussed in Section 4.1 above. No environmental liens were identified. 4.4 Summary of Previous Environmental Investigations Previous environmental investigations of the Project Area were not provided, discovered, nor conducted by HDR. 4.5 Interviews A Property Owner Interview Form was sent to AES on November 10, 2020, who then forwarded it to the property owner. Ms Christina Davis, property owner, returned the filled out form on December 1, 2020. Ms Davis stated the following (Davis 2020): • She has owned the land for 33 years. • It is currently used for cattle grazing and was previously used for horse breeding. • She is not aware of any current or past chemical, petroleum, or hazardous waste spills or leakage of tanks; environmental concerns; environmental cleanups; or environmental liens on or near their parcel. • There is a septic system on the east side of the road by their house. 4.6 Site Reconnaissance HDR visited the Project Area and surrounding properties and conducted reconnaissance on November 2, 2020. Adjacent properties were generally not accessed and were observed from the Project Area roads or right of ways. Davis Phase 1 Environmental Site Assessment 2714 County Road 331 Silt, Garfield County, Colorado January 2021 | 19 The Project Area is approximately 201 acres and is irregularly shaped with a northwestern portion and a southeastern portion that are divided by a small ravine located in the northeast portion of the Project Area. CR 331 borders most of the Project Area’s eastern boundary. HDR traveled on an unnamed, unmarked gravel road (referred to as Chair Bar Road on maps) west off of CR 331 and approximately 300 feet north of the Project Area. Approximately 2,000 feet west of CR 331 an unmarked dirt road runs south off of Chair Bar Road near a pond to the northwestern corner of the Project Area where a ranch is located. The northwestern portion of the Project Area, looking to the southeast, was observed from this location. HDR then traversed an unmarked jeep trail located in the northeast corner of the Project Area . The trail lead to the west and into the northeastern portion of the Project Area from CR 331. This road was used to access the Project Area for the site reconnaissance. The jeep trail is rough and steep and runs up a wooded ravine to the southwest into the Project Area. Various debris and garbage was observed; however, it was minimal and no hazardous materials were observed. A fence line and an old wood corral were also observed in this area. Various ditches run through the Project Area and one of the ditches, located in the north central portion of the southeastern portion of the Project Area, contained various debris such as a car frame, oven, washing machine, and other metal debris. No hazardous materials were observed. The majority of the Project Area is rolling fields with a few trees and a wooded ravine area in the northeast. An oil/gas infrastructure pad is located adjacent to the western central boundary. This area was not accessed. Approximately 150-feet south of the southern boundary of the Project Area a very steep ravine was observed with large piles of metal and wood debris at the bottom and along the top of the rim of the ravine. The bottom of the ravine was inaccessible; however, that area is not within the Project Area. Approximately 500 feet south of the southeastern corner of the Project Area an unnamed unmarked gravel road (referred to as Alta Mesa Road on maps) runs west off of CR 331 and leads to a dirt road that runs to the north into the southeastern portion of the Project Area. Alta Mesa Road was impassable during the site reconnaissance. The only structures in the Project Area are an old wood corral and several wood and wire mesh fences. No utilities were observed. The surrounding area is mostly vacant land with interspersed agricultural land and ranches along with numerous oil/gas infrastructure pads. Photographs taken during the Project Area reconnaissance are located in Appendix D. 4.7 Utilities and PCBs No utilities were observed in the Project Area. Davis Phase 1 Environmental Site Assessment 2714 County Road 331 Silt, Garfield County, Colorado January 2021 | 20 5.0 Data Gap Analysis The ASTM Practice E1527-13 standards require a listing of “data gaps,” including data failure, encountered during the investigative process that may affect the validity of the conclusions drawn by the environmental professional. The ASTM Practice E1527-13: 12.7 standard also requires that the environmental professional estimate the relative importance of the data gaps. Generally, gaps in available data are related to the availability of historical data sources for specific sites of concern. The environmental professional uses multiple historical data sources as a method to provide coverage for data gaps. Historical information is collected on a recurring basis, and the passage of time between data sets may or may not constitute a significant gap in data coverage. For this project, the following items may constitute data gaps as defined by ASTM Practice E1527-13: • Absence of Sanborn fire insurance maps and city directories • No access to adjacent oil/gas infrastructure pad These data gaps do not appear to be significant due to observations made from the Project Area, database information, and the supplemental historical information. Davis Phase 1 Environmental Site Assessment 2714 County Road 331 Silt, Garfield County, Colorado January 2021 | 21 6.0 Findings, Opinions, and Conclusions HDR has conducted a Phase I ESA of the Davis property, 2714 CR 331, Silt, Garfield County, CO, parcel # 217921400130 (Project Area). This Phase I ESA has been prepared for AES who has requested a Phase I ESA of the aforementioned Project Area for their Holy Cross PV and BESS Portfolio to determine its suitability for a planned greenfield solar project targeting up to 17 MW DC / 10 MW plus 20 MWh of battery storage. This Phase I ESA was performed in accordance with the scope and limitations of ASTM Practice E1527-13. Any exceptions to, or deletions from, this practice are described previously in this report. Included in this Phase I ESA are a summary of the Project Area reconnaissance, interviews, and a review of the environmental database search report, historical data sources, and other records. 6.1 Findings The Project Area is approximately 201 acres and is irregularly shaped with a northwestern area and a southeastern area that are divided by a small ravine located in the northeast portion of the Project Area. The majority of the Project Area is vacant rolling fields with a few trees and a wooded ravine area in the northeast. Other than an old wood corral and fences, no structures or utilities were observed in the Project Area. CR 331 borders most of the Project Area’s eastern boundary, and an oil/gas infrastructure pad is located adjacent to the western central boundary. The surrounding area is mostly vacant land with interspersed agricultural land and ranches along with numerous oil/gas infrastructure pads. 6.2 Opinions HDR has reviewed all of the stated data sources that are part of the ASTM Practice E1527-13 assessment protocol. Based upon the review of the data, HDR has developed the following professional opinions: No RECs, HRECs, or CRECs were identified. BERs The following BERs were identified: • Various ditches run through the Project Area and one of the ditches, located in the north central portion of the southeastern portion of the Project Area, contained various debris such as a car frame, oven, washing machine, and other metal debris. No hazardous materials were observed. Other debris may be buried in this ditch or in other ditches in the Project Area. • Oil/gas pad infrastructure is located in the general surrounding area including an oil/gas Davis Phase 1 Environmental Site Assessment 2714 County Road 331 Silt, Garfield County, Colorado January 2021 | 22 pad located adjacent to the western central boundary. 6.3 Conclusions Based upon the above-detailed Findings and Opinions, HDR concludes that zero RECs, zero HRECs, zero CRECs, and two BERs have been identified for the Project Area. The following statement is required by ASTM Practice E1527-13 as a positive declaration of whether RECs were found: HDR has performed a Phase I ESA in conformance with the scope and limitations of ASTM Practice E1527-13 of the Davis property, 2714 County Road 331, Silt, Garfield County, Colorado, parcel # 217921400130 (Project Area). Any exceptions to or deletions from these practices are described in previous sections of this report. This report has revealed zero RECs, zero HRECs, zero CRECs, and two BERs in connection with the Project Area. Davis Phase 1 Environmental Site Assessment 2714 County Road 331 Silt, Garfield County, Colorado January 2021 | 23 7.0 Recommendations Recommendations included in this report were developed through the investigative procedures previously described in the Scope of Services, Significant Assumptions, and Limitations sections. These findings should be reviewed within the context of the limitations provided in the Limitations section. Based on the identified RECs, HRECs, CRECs, and BERs, HDR makes the following recommendation: • During construction activities either avoid the ditches in the Project Area, or excavate and properly dispose of any debris found in the ditches. HDR also recommends that AES consider the “shelf life” of Phase I documents in determining risk. ASTM Practice E1527-13: 4.6 states that a conforming “Phase I” report is valid for a period of 180 days, and may be updated during the 180 days to 1-year timeframe. The report is valid for use in any of the CERCLA defenses ONLY if it is updated within this time frame. If greater than one year passes from the final report date, the Phase I effort would need to be repeated to remain in compliance with ASTM and the “All Appropriate Inquiry” protection. Davis Phase 1 Environmental Site Assessment 2714 County Road 331 Silt, Garfield County, Colorado January 2021 | 24 8.0 Qualifications of Environmental Professionals 8.1 Signatures and Qualifications We declare that, to the best of our professional knowledge and belief, we meet the definition of environmental professional as defined in Section 312.10 of 40 Code of Federal Regulations (CFR) Part 312. We have the specific qualifications based on education, training, and experience to assess a property of the nature, history, and setting of the subject property. We have developed and performed the AAIs in conformance with standards and practices set forth in 40 CFR Part 312. Todd Wickert, M.S. Project Manager HDR, Inc. Greg Kelly, PG Senior Hydrogeologist HDR, Inc. 8.1.1 Qualifications of Environmental Professionals This Phase I ESA was performed by the following HDR personnel: • Mr. Wickert has a Master’s Degree in Environmental Policy and Management with more than 26 years of experience providing environmental compliance and restoration services to federal, state, and commercial clients. He has performed and managed in excess of 400 Phase I and Phase II environmental site assessment and site characterizations; has managed the installation of groundwater monitoring wells; has managed UST removal, remediation, and long-term monitoring projects; has managed large-scale asbestos abatement projects; has performed asbestos inspections; has performed LBP surveys; has developed and authored various documents such as work plans, field sampling plans, quality assurance plans, environmental management plans, and Site Inspection (SI) reports; has provided contractor oversight; conducted health and safety audits, and environmental baseline surveys; and has managed environmental laboratory scientists and support staff. Davis Phase 1 Environmental Site Assessment 2714 County Road 331 Silt, Garfield County, Colorado January 2021 | 25 • Mr. Wickert has the following registrations and certifications relevant to the environmental field: o 40 Hour Hazardous Waste Operations and Emergency Response (HAZWOPER) o State of Colorado Certified Asbestos Inspector No. 1568 o State of Colorado, Petroleum Tank Committee, Registered Professional Environmental Scientist No. 5474. Quality Assurance/Quality Control (QA/QC) was performed by the following HDR Personnel: • Mr. Greg Kelly, PG is a qualified environmental professional, as defined by ASTM Practice E1527-13, and has more than 32 years of experience in investigative hydrogeology at CERCLA, RCRA, and commercial hazardous waste sites. He has extensive experience at petroleum hydrocarbon contaminated sites and has managed the design, construction, and implementation of soil and groundwater remediation systems including: soil vapor extraction, air sparge, dual-phase extraction, oxygen diffusion, bioremediation, chemical oxidation, monitored natural attenuation, and excavation and disposal. He is skilled in the application of geologic and hydrologic principles in a variety of complex hydrogeologic settings and has conducted numerous remedial investigations of groundwater, surface water, sediment, soil, and soil vapor. Davis Phase 1 Environmental Site Assessment 2714 County Road 331 Silt, Garfield County, Colorado January 2021 | 26 9.0 References American Society for Testing and Materials (ASTM) Practice E1527-13, 2013. Standard Practice for Environmental Site Assessments: Phase I Environmental Site Assessment Process. ASTM, 2020. User Questionnaire. AES Pease Bear Ranch Solar, LLC. November 25, 2020. CDPHE, 2020c. CDPHE Voluntary Cleanup and Redevelopment Program (https://www.colorado.gov/pacific/cdphe/voluntary-cleanup). November 17, 2020 CDPHE, 2020d. The CDPHE Brownfields Program (https://www.colorado.gov/pacific/cdphe/brownfields). November 17, 2020 Davis, 2020. Property Owner Interview Form. Christina Davis. December 1, 2020. Environmental Data Resources (EDR), 2020a. Historical Topo Map Report. Garfield Davis Stephen S Christina, Silt, CO 81652. November 9, 2020. EDR, 2020b. EDR Area/Corridor Report. Garfield Davis Stephen S Christina, Silt, CO 81652. November 6, 2020. EDR, 2020c. The EDR Aerial Photo Decade Package. Garfield Davis Stephen S Christina, Silt, CO 81652. November 11, 2020. USDA, 2020. United States Department of Agriculture (USDA), 2020. Natural Resources Soil Conservation (NRSC) database https://websoilsurvey.sc.egov.usda.gov/App/ WebSoilSurvey.aspx. Accessed November 17, 2020. USGS, 2013. USGS Mineral Resources On-line Spatial Data. Colorado Geologic Map Data. http://mrdata.usgs.gov/sgmc/co.html. Accessed November 17, 2020 Appendix A. Historical Topographic Map Report EDR Historical Topo Map Report Inquiry Number: 6 Armstrong Road, 4th floor Shelton, CT 06484 Toll Free: 800.352.0050 www.edrnet.com with QuadMatch™ Garfield Davis Stephen S Christina Garfield Davis Stephen S Christina Silt, CO 81652 November 09, 2020 6253164.5 EDR Historical Topo Map Report EDR Inquiry # Search Results: P.O.# Project: Maps Provided: Disclaimer - Copyright and Trademark Notice EDR and its logos (including Sanborn and Sanborn Map) are trademarks of Environmental Data Resources, Inc. or its affiliates. All other trademarks used herein are the property of their respective owners. page- Coordinates: Latitude: Longitude: UTM Zone: UTM X Meters: UTM Y Meters: Elevation: Contact: Site Name: Client Name: 2013 1987 1982 1962, 1963 1910 1906 11/09/20 Garfield Davis Stephen S Christina HDR Garfield Davis Stephen S Christina 9781 S Meridian Boulevard, Ste 300 Silt, CO 81652 Englewood, CO 80112 6253164.5 Todd Wickert EDR Topographic Map Library has been searched by EDR and maps covering the target property location as provided by HDR were identified for the years listed below. EDR’s Historical Topo Map Report is designed to assist professionals in evaluating potential liability on a target property resulting from past activities. EDRs Historical Topo Map Report includes a search of a collection of public and private color historical topographic maps, dating back to the late 1800s. NA 39.5086 39° 30' 31" North 10259080-002 -107.6641 -107° 39' 51" West Zone 13 North 270955.64 4376608.01 5767.01' above sea level This Report contains certain information obtained from a variety of public and other sources reasonably available to Environmental Data Resources, Inc. It cannot be concluded from this Report that coverage information for the target and surrounding properties does not exist from other sources. NO WARRANTY EXPRESSED OR IMPLIED, IS MADE WHATSOEVER IN CONNECTION WITH THIS REPORT. ENVIRONMENTAL DATA RESOURCES, INC. SPECIFICALLY DISCLAIMS THE MAKING OF ANY SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE OR PURPOSE. ALL RISK IS ASSUMED BY THE USER. IN NO EVENT SHALL ENVIRONMENTAL DATA RESOURCES, INC. BE LIABLE TO ANYONE, WHETHER ARISING OUT OF ERRORS OR OMISSIONS, NEGLIGENCE, ACCIDENT OR ANY OTHER CAUSE, FOR ANY LOSS OF DAMAGE, INCLUDING, WITHOUT LIMITATION, SPECIAL, INCIDENTAL, CONSEQUENTIAL, OR EXEMPLARY DAMAGES. ANY LIABILITY ON THE PART OF ENVIRONMENTAL DATA RESOURCES, INC. IS STRICTLY LIMITED TO A REFUND OF THE AMOUNT PAID FOR THIS REPORT. Purchaser accepts this Report "AS IS". Any analyses, estimates, ratings, environmental risk levels or risk codes provided in this Report are provided for illustrative purposes only, and are not intended to provide, nor should they be interpreted as providing any facts regarding, or prediction or forecast of, any environmental risk for any property. Only a Phase I Environmental Site Assessment performed by an environmental professional can provide information regarding the environmental risk for any property. Additionally, the information provided in this Report is not to be construed as legal advice. Copyright 2020 by Environmental Data Resources, Inc. All rights reserved. Reproduction in any media or format, in whole or in part, of any report or map of Environmental Data Resources, Inc., or its affiliates, is prohibited without prior written permission. 6253164 5 2 page Topo Sheet Key This EDR Topo Map Report is based upon the following USGS topographic map sheets. - 2013 Source Sheets 2013 Silt 7.5-minute, 24000 2013 Hunter Mesa 7.5-minute, 24000 1987 Source Sheets 1987 Silt 7.5-minute, 24000 Aerial Photo Revised 1982 1987 Hunter Mesa 7.5-minute, 24000 Aerial Photo Revised 1982 1982 Source Sheets 1982 Silt 7.5-minute, 24000 Aerial Photo Revised 1979 1982 Hunter Mesa 7.5-minute, 24000 Aerial Photo Revised 1979 1962, 1963 Source Sheets 1962 Silt 7.5-minute, 24000 Aerial Photo Revised 1960 1963 Hunter Mesa 7.5-minute, 24000 Aerial Photo Revised 1962 6253164 5 3 page Topo Sheet Key This EDR Topo Map Report is based upon the following USGS topographic map sheets. - 1910 Source Sheets 1910 Grand Hogback 30-minute, 125000 1906 Source Sheets 1906 Grand Hogback 30-minute, 125000 6253164 5 4 Historical Topo Map page SITE NAME: ADDRESS: CLIENT: This report includes information from the following map sheet(s). - EW SW S SE NW N NE 2013 0 Miles 0.25 0.5 1 1.5 Garfield Davis Stephen S Christina Garfield Davis Stephen S Christina Silt, CO 81652 HDR TP, Silt, 2013, 7.5-minute S, Hunter Mesa, 2013, 7.5-minute 6253164 5 5 Historical Topo Map page SITE NAME: ADDRESS: CLIENT: This report includes information from the following map sheet(s). - EW SW S SE NW N NE 1987 0 Miles 0.25 0.5 1 1.5 Garfield Davis Stephen S Christina Garfield Davis Stephen S Christina Silt, CO 81652 HDR TP, Silt, 1987, 7.5-minute S, Hunter Mesa, 1987, 7.5-minute 6253164 5 6 Historical Topo Map page SITE NAME: ADDRESS: CLIENT: This report includes information from the following map sheet(s). - EW SW S SE NW N NE 1982 0 Miles 0.25 0.5 1 1.5 Garfield Davis Stephen S Christina Garfield Davis Stephen S Christina Silt, CO 81652 HDR TP, Silt, 1982, 7.5-minute S, Hunter Mesa, 1982, 7.5-minute 6253164 5 7 Historical Topo Map page SITE NAME: ADDRESS: CLIENT: This report includes information from the following map sheet(s). - EW SW S SE NW N NE 1962, 1963 0 Miles 0.25 0.5 1 1.5 Garfield Davis Stephen S Christina Garfield Davis Stephen S Christina Silt, CO 81652 HDR TP, Silt, 1962, 7.5-minute S, Hunter Mesa, 1963, 7.5-minute 6253164 5 8 Historical Topo Map page SITE NAME: ADDRESS: CLIENT: This report includes information from the following map sheet(s). - EW SW S SE NW N NE 1910 0 Miles 0.25 0.5 1 1.5 Garfield Davis Stephen S Christina Garfield Davis Stephen S Christina Silt, CO 81652 HDR TP, Grand Hogback, 1910, 30-minute 6253164 5 9 Historical Topo Map page SITE NAME: ADDRESS: CLIENT: This report includes information from the following map sheet(s). - EW SW S SE NW N NE 1906 0 Miles 0.25 0.5 1 1.5 Garfield Davis Stephen S Christina Garfield Davis Stephen S Christina Silt, CO 81652 HDR TP, Grand Hogback, 1906, 30-minute 6253164 5 10 Appendix B. Radius Map Report with GeoCheck tropeR rodirroC / aerA RDE 6 Armstrong Road, 4th floor Shelton, CT 06484 Toll Free: 800.352.0050 www.edrnet.com Garfield Davis Stephen S Christina Garfield Davis Stephen S Christina Silt, CO 81652 Inquiry Number: 6253164.7s November 06, 2020 SECTION PAGE Executive Summary ES1 Mapped Sites Summary 2 Key Map 2 Map Findings Summary 3 Focus Maps 7 Map Findings 9 Orphan Summary OR-1 Government Records Searched/Data Currency Tracking GR-1 TC6253164.7s Page 1 Thank you for your business. Please contact EDR at 1-800-352-0050 with any questions or comments. Disclaimer - Copyright and Trademark Notice This Report contains certain information obtained from a variety of public and other sources reasonably available to Environmental Data Resources, Inc. It cannot be concluded from this Report that coverage information for the target and surrounding properties does not exist from other sources. NO WARRANTY EXPRESSED OR IMPLIED, IS MADE WHATSOEVER IN CONNECTION WITH THIS REPORT. ENVIRONMENTAL DATA RESOURCES, INC. SPECIFICALLY DISCLAIMS THE MAKING OF ANY SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE OR PURPOSE. ALL RISK IS ASSUMED BY THE USER. IN NO EVENT SHALL ENVIRONMENTAL DATA RESOURCES, INC. BE LIABLE TO ANYONE, WHETHER ARISING OUT OF ERRORS OR OMISSIONS, NEGLIGENCE, ACCIDENT OR ANY OTHER CAUSE, FOR ANY LOSS OF DAMAGE, INCLUDING, WITHOUT LIMITATION, SPECIAL, INCIDENTAL, CONSEQUENTIAL, OR EXEMPLARY DAMAGES. ANY LIABILITY ON THE PART OF ENVIRONMENTAL DATA RESOURCES, INC. IS STRICTLY LIMITED TO A REFUND OF THE AMOUNT PAID FOR THIS REPORT. Purchaser accepts this Report "AS IS". Any analyses, estimates, ratings, environmental risk levels or risk codes provided in this Report are provided for illustrative purposes only, and are not intended to provide, nor should they be interpreted as providing any facts regarding, or prediction or forecast of, any environmental risk for any property. Only a Phase I Environmental Site Assessment performed by an environmental professional can provide information regarding the environmental risk for any property. Additionally, the information provided in this Report is not to be construed as legal advice. Copyright 2020 by Environmental Data Resources, Inc. All rights reserved. Reproduction in any media or format, in whole or in part, of any report or map of Environmental Data Resources, Inc., or its affiliates, is prohibited without prior written permission. EDR and its logos (including Sanborn and Sanborn Map) are trademarks of Environmental Data Resources, Inc. or its affiliates. All other trademarks used herein are the property of their respective owners. TABLE OF CONTENTS EXECUTIVE SUMMARY TC6253164.7s EXECUTIVE SUMMARY 1 A search of available environmental records was conducted by Environmental Data Resources, Inc (EDR). The report was designed to assist parties seeking to meet the search requirements of EPA’s Standards and Practices for All Appropriate Inquiries (40 CFR Part 312), the ASTM Standard Practice for Environmental Site Assessments (E 1527-13), the ASTM Standard Practice for Environmental Site Assessments for Forestland or Rural Property (E 2247-16), the ASTM Standard Practice for Limited Environmental Due Diligence: Transaction Screen Process (E 1528-14) or custom requirements developed for the evaluation of environmental risk associated with a parcel of real estate. SUBJECT PROPERTY INFORMATION ADDRESS GARFIELD DAVIS STEPHEN S CHRISTINA SILT, CO 81652 TARGET PROPERTY SEARCH RESULTS The Target Property was identified in the following databases. Page Numbers and Map Identifcations refer to the EDR Area/Corridor Report where detailed data on individual sites can be reviewed. Sites listed in bold italics are in multiple databases. SURROUNDING SITES: SEARCH RESULTS Surrounding sites were not identified. Unmappable (orphan) sites are not considered in the foregoing analysis. TC6253164.7s Page 2 NO MAPPED SITES FOUND MAPPED SITES SUMMARY Target Property: GARFIELD DAVIS STEPHEN S CHRISTINA SILT, CO 81652 FOCUS MAP DIST (ft. & mi.)MAP ID / DATABASE ACRONYMS DIRECTIONSITE NAME ADDRESS MAP FINDINGS SUMMARY Search TargetDistance Total Database Property(Miles) < 1/8 1/8 - 1/4 1/4 - 1/2 1/2 - 1 > 1 Plotted STANDARD ENVIRONMENTAL RECORDS Federal NPL site list 0 NR 0 0 0 0 1.000NPL 0 NR 0 0 0 0 1.000Proposed NPL 0 NR 0 0 0 0 1.000NPL LIENS Federal Delisted NPL site list 0 NR 0 0 0 0 1.000Delisted NPL Federal CERCLIS list 0 NR NR 0 0 0 0.500FEDERAL FACILITY 0 NR NR 0 0 0 0.500SEMS Federal CERCLIS NFRAP site list 0 NR NR 0 0 0 0.500SEMS-ARCHIVE Federal RCRA CORRACTS facilities list 0 NR 0 0 0 0 1.000CORRACTS Federal RCRA non-CORRACTS TSD facilities list 0 NR NR 0 0 0 0.500RCRA-TSDF Federal RCRA generators list 0 NR NR NR 0 0 0.250RCRA-LQG 0 NR NR NR 0 0 0.250RCRA-SQG 0 NR NR NR 0 0 0.250RCRA-VSQG Federal institutional controls / engineering controls registries 0 NR NR 0 0 0 0.500LUCIS 0 NR NR 0 0 0 0.500US ENG CONTROLS 0 NR NR 0 0 0 0.500US INST CONTROLS Federal ERNS list 0 NR NR NR NR NR TPERNS State- and tribal - equivalent CERCLIS N/A N/A N/A N/A N/A N/A N/ASHWS State and tribal landfill and/or solid waste disposal site lists 0 NR NR 0 0 0 0.500SWF/LF State and tribal leaking storage tank lists 0 NR NR 0 0 0 0.500LAST 0 NR NR 0 0 0 0.500LTANKS 0 NR NR 0 0 0 0.500LUST 0 NR NR 0 0 0 0.500INDIAN LUST TC6253164.7s Page 1 MAP FINDINGS SUMMARY Search TargetDistance Total Database Property(Miles) < 1/8 1/8 - 1/4 1/4 - 1/2 1/2 - 1 > 1 Plotted 0 NR NR 0 0 0 0.500LUST TRUST State and tribal registered storage tank lists 0 NR NR NR 0 0 0.250FEMA UST 0 NR NR NR 0 0 0.250UST 0 NR NR NR 0 0 0.250AST 0 NR NR NR 0 0 0.250INDIAN UST State and tribal institutional control / engineering control registries 0 NR NR 0 0 0 0.500AUL State and tribal voluntary cleanup sites 0 NR NR 0 0 0 0.500VCP 0 NR NR 0 0 0 0.500INDIAN VCP State and tribal Brownfields sites 0 NR NR 0 0 0 0.500BROWNFIELDS ADDITIONAL ENVIRONMENTAL RECORDS Local Brownfield lists 0 NR NR 0 0 0 0.500US BROWNFIELDS Local Lists of Landfill / Solid Waste Disposal Sites 0 NR NR 0 0 0 0.500SWRCY 0 NR NR 0 0 0 0.500HIST LF 0 NR NR 0 0 0 0.500INDIAN ODI 0 NR NR 0 0 0 0.500ODI 0 NR NR 0 0 0 0.500DEBRIS REGION 9 0 NR NR 0 0 0 0.500IHS OPEN DUMPS 0 NR NR 0 0 0 0.500DENVER CO HISTORIC FILL Local Lists of Hazardous waste / Contaminated Sites 0 NR NR NR NR NR TPUS HIST CDL 0 NR NR NR NR NR TPCDL 0 NR NR NR NR NR TPUS CDL Local Land Records 0 NR NR NR NR NR TPLIENS 2 Records of Emergency Release Reports 0 NR NR NR NR NR TPHMIRS 0 NR NR NR NR NR TPSPILLS 0 NR NR NR NR NR TPSPILLS 90 Other Ascertainable Records 0 NR NR NR 0 0 0.250RCRA NonGen / NLR TC6253164.7s Page 2 MAP FINDINGS SUMMARY Search TargetDistance Total Database Property(Miles) < 1/8 1/8 - 1/4 1/4 - 1/2 1/2 - 1 > 1 Plotted 0 NR 0 0 0 0 1.000FUDS 0 NR 0 0 0 0 1.000DOD 0 NR NR 0 0 0 0.500SCRD DRYCLEANERS 0 NR NR NR NR NR TPUS FIN ASSUR 0 NR NR NR NR NR TPEPA WATCH LIST 0 NR NR NR 0 0 0.2502020 COR ACTION 0 NR NR NR NR NR TPTSCA 0 NR NR NR NR NR TPTRIS 0 NR NR NR NR NR TPSSTS 0 NR 0 0 0 0 1.000ROD 0 NR NR NR NR NR TPRMP 0 NR NR NR NR NR TPRAATS 0 NR NR NR NR NR TPPRP 0 NR NR NR NR NR TPPADS 0 NR NR NR NR NR TPICIS 0 NR NR NR NR NR TPFTTS 0 NR NR NR NR NR TPMLTS 0 NR NR NR NR NR TPCOAL ASH DOE 0 NR NR 0 0 0 0.500COAL ASH EPA 0 NR NR NR NR NR TPPCB TRANSFORMER 0 NR NR NR NR NR TPRADINFO 0 NR NR NR NR NR TPHIST FTTS 0 NR NR NR NR NR TPDOT OPS 0 NR 0 0 0 0 1.000CONSENT 0 NR 0 0 0 0 1.000INDIAN RESERV 0 NR 0 0 0 0 1.000FUSRAP 0 NR NR 0 0 0 0.500UMTRA 0 NR NR NR NR NR TPLEAD SMELTERS 0 NR NR NR NR NR TPUS AIRS 0 NR NR NR 0 0 0.250US MINES 0 NR NR NR 0 0 0.250ABANDONED MINES 0 NR NR NR NR NR TPFINDS 0 NR NR NR NR NR TPDOCKET HWC 0 NR 0 0 0 0 1.000UXO 0 NR NR NR NR NR TPECHO 0 NR NR NR 0 0 0.250FUELS PROGRAM 0 NR NR NR NR NR TPAIRS 0 NR NR NR NR NR TPASBESTOS 0 NR NR NR NR NR TPMETHANE SITE 0 NR NR NR NR NR TPMethane Investigation 0 NR NR NR 0 0 0.250DRYCLEANERS 0 NR NR NR NR NR TPFinancial Assurance 0 NR NR NR NR NR TPLEAD 0 NR NR NR 0 0 0.250MINES 0 NR NR NR NR NR TPNPDES 0 NR NR NR NR NR TPUIC 0 NR NR 0 0 0 0.500UMTRA 0 NR NR NR NR NR TPMINES MRDS EDR HIGH RISK HISTORICAL RECORDS EDR Exclusive Records 0 NR 0 0 0 0 1.000EDR MGP TC6253164.7s Page 3 MAP FINDINGS SUMMARY Search TargetDistance Total Database Property(Miles) < 1/8 1/8 - 1/4 1/4 - 1/2 1/2 - 1 > 1 Plotted 0 NR NR NR NR 0 0.125EDR Hist Auto 0 NR NR NR NR 0 0.125EDR Hist Cleaner EDR RECOVERED GOVERNMENT ARCHIVES Exclusive Recovered Govt. Archives 0 NR NR NR NR NR TPRGA LF 0 NR NR NR NR NR TPRGA LUST 0 0 0 0 0 0 0- Totals -- NOTES: TP = Target Property NR = Not Requested at this Search Distance Sites may be listed in more than one database N/A = This State does not maintain a SHWS list. See the Federal CERCLIS list. TC6253164.7s Page 4 TC6253164.7s.1 Page 7 NO MAPPED SITES FOUND MAPPED SITES SUMMARY - FOCUS MAP 1 Target Property: GARFIELD DAVIS STEPHEN S CHRISTINA SILT, CO 81652 FOCUS MAP DIST (ft. & mi.)MAP ID / DATABASE ACRONYMS DIRECTIONSITE NAME ADDRESS TC6253164.7s Page 8 NO SITES FOUND MAP FINDINGSMap ID Direction EDR ID NumberDistance EPA ID NumberDatabase(s)SiteElevation TC6253164.7s Page OR-1SILTU004319928GARFIELD COUNTY SHOP AT SILT312 GARFIELD CR 21481652USTSILTS125420359GARFIELD COUNTY SHOP AT SILT312 GARFIELD CR 21481652LTANKSGARFIELD COUNTYS1256170463500 GARFIELD COUNTY ROAD 331SPILLSGARFIELD COUNTYS108029848GARFIELD CREEK ROADSPILLSGARFIELD COUNTYS108029847GARFIELD COUNTY 331-7 MILES S. OF SILTSPILLSGARFIELD COUNTYS118974759GARFIELD COUNTY RD 317, APPROX 6 MILES FROM RIFLESPILLSGARFIELD COUNTYS108030347WEST BOUND I-70 ON EAGLE/GARFIELD COUNTY LINESPILLSGARFIELD COUNTYS118892363GARFIELD COUNTY RD. 134 (1/2 MILE IN)SPILLSGARFIELD COUNTYS106778344GARFIELD COUNTY RD. 201 (BAXTER PASS)SPILLS608 OTHER ADDRESS TO FOLLOW IN COMMTTOWNSHIP 6 SOUTH RIAGE 97 WEST, GARFIELD-CASCADE CREEKGARFIELD COUNTYS111066698SKINNY RIDGE INTO PRATHER SPRINGS NW NE SECTION 23SPILLSGARFIELD COUNTYS117960308INTERSECTION OF GARFIELD CR 293 AND GARFIELD CR 294SPILLSGARFIELD COUNTYS105529594GARFIELD COUNTY AIRPORTSPILLSGARFIELD COUNTY20192666053500 GARFIELD COUNTY ROAD 331ERNSCount: 13 recordsORPHAN SUMMARYCityEDR IDSite NameSite AddressZipDatabase(s) To maintain currency of the following federal and state databases, EDR contacts the appropriate governmental agency on a monthly or quarterly basis, as required. Number of Days to Update:Provides confirmation that EDR is reporting records that have been updated within 90 days from the date the government agency made the information available to the public. STANDARD ENVIRONMENTAL RECORDS Federal NPL site list NPL: National Priority List National Priorities List (Superfund). The NPL is a subset of CERCLIS and identifies over 1,200 sites for priority cleanup under the Superfund Program. NPL sites may encompass relatively large areas. As such, EDR provides polygon coverage for over 1,000 NPL site boundaries produced by EPA’s Environmental Photographic Interpretation Center (EPIC) and regional EPA offices. Date of Government Version: 07/29/2020 Date Data Arrived at EDR: 08/03/2020 Date Made Active in Reports: 08/25/2020 Number of Days to Update: 22 Source: EPA Telephone: N/A Last EDR Contact: 11/05/2020 Next Scheduled EDR Contact: 01/11/2021 Data Release Frequency: Quarterly NPL Site Boundaries Sources: EPA’s Environmental Photographic Interpretation Center (EPIC) Telephone: 202-564-7333 EPA Region 1 EPA Region 6 Telephone 617-918-1143 Telephone: 214-655-6659 EPA Region 3 EPA Region 7 Telephone 215-814-5418 Telephone: 913-551-7247 EPA Region 4 EPA Region 8 Telephone 404-562-8033 Telephone: 303-312-6774 EPA Region 5 EPA Region 9 Telephone 312-886-6686 Telephone: 415-947-4246 EPA Region 10 Telephone 206-553-8665 Proposed NPL: Proposed National Priority List Sites A site that has been proposed for listing on the National Priorities List through the issuance of a proposed rule in the Federal Register. EPA then accepts public comments on the site, responds to the comments, and places on the NPL those sites that continue to meet the requirements for listing. Date of Government Version: 07/29/2020 Date Data Arrived at EDR: 08/03/2020 Date Made Active in Reports: 08/25/2020 Number of Days to Update: 22 Source: EPA Telephone: N/A Last EDR Contact: 11/05/2020 Next Scheduled EDR Contact: 01/11/2021 Data Release Frequency: Quarterly NPL LIENS: Federal Superfund Liens Federal Superfund Liens. Under the authority granted the USEPA by CERCLA of 1980, the USEPA has the authority to file liens against real property in order to recover remedial action expenditures or when the property owner received notification of potential liability. USEPA compiles a listing of filed notices of Superfund Liens. TC6253164.7s Page GR-1 GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING Date of Government Version: 10/15/1991 Date Data Arrived at EDR: 02/02/1994 Date Made Active in Reports: 03/30/1994 Number of Days to Update: 56 Source: EPA Telephone: 202-564-4267 Last EDR Contact: 08/15/2011 Next Scheduled EDR Contact: 11/28/2011 Data Release Frequency: No Update Planned Federal Delisted NPL site list Delisted NPL: National Priority List Deletions The National Oil and Hazardous Substances Pollution Contingency Plan (NCP) establishes the criteria that the EPA uses to delete sites from the NPL. In accordance with 40 CFR 300.425.(e), sites may be deleted from the NPL where no further response is appropriate. Date of Government Version: 07/29/2020 Date Data Arrived at EDR: 08/03/2020 Date Made Active in Reports: 08/25/2020 Number of Days to Update: 22 Source: EPA Telephone: N/A Last EDR Contact: 11/05/2020 Next Scheduled EDR Contact: 01/11/2021 Data Release Frequency: Quarterly Federal CERCLIS list FEDERAL FACILITY: Federal Facility Site Information listing A listing of National Priority List (NPL) and Base Realignment and Closure (BRAC) sites found in the Comprehensive Environmental Response, Compensation and Liability Information System (CERCLIS) Database where EPA Federal Facilities Restoration and Reuse Office is involved in cleanup activities. Date of Government Version: 04/03/2019 Date Data Arrived at EDR: 04/05/2019 Date Made Active in Reports: 05/14/2019 Number of Days to Update: 39 Source: Environmental Protection Agency Telephone: 703-603-8704 Last EDR Contact: 10/02/2020 Next Scheduled EDR Contact: 01/11/2021 Data Release Frequency: Varies SEMS: Superfund Enterprise Management System SEMS (Superfund Enterprise Management System) tracks hazardous waste sites, potentially hazardous waste sites, and remedial activities performed in support of EPA’s Superfund Program across the United States. The list was formerly know as CERCLIS, renamed to SEMS by the EPA in 2015. The list contains data on potentially hazardous waste sites that have been reported to the USEPA by states, municipalities, private companies and private persons, pursuant to Section 103 of the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). This dataset also contains sites which are either proposed to or on the National Priorities List (NPL) and the sites which are in the screening and assessment phase for possible inclusion on the NPL. Date of Government Version: 07/29/2020 Date Data Arrived at EDR: 08/03/2020 Date Made Active in Reports: 08/25/2020 Number of Days to Update: 22 Source: EPA Telephone: 800-424-9346 Last EDR Contact: 11/05/2020 Next Scheduled EDR Contact: 01/25/2021 Data Release Frequency: Quarterly Federal CERCLIS NFRAP site list SEMS-ARCHIVE: Superfund Enterprise Management System Archive TC6253164.7s Page GR-2 GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING SEMS-ARCHIVE (Superfund Enterprise Management System Archive) tracks sites that have no further interest under the Federal Superfund Program based on available information. The list was formerly known as the CERCLIS-NFRAP, renamed to SEMS ARCHIVE by the EPA in 2015. EPA may perform a minimal level of assessment work at a site while it is archived if site conditions change and/or new information becomes available. Archived sites have been removed and archived from the inventory of SEMS sites. Archived status indicates that, to the best of EPA’s knowledge, assessment at a site has been completed and that EPA has determined no further steps will be taken to list the site on the National Priorities List (NPL), unless information indicates this decision was not appropriate or other considerations require a recommendation for listing at a later time. The decision does not necessarily mean that there is no hazard associated with a given site; it only means that. based upon available information, the location is not judged to be potential NPL site. Date of Government Version: 07/29/2020 Date Data Arrived at EDR: 08/03/2020 Date Made Active in Reports: 08/25/2020 Number of Days to Update: 22 Source: EPA Telephone: 800-424-9346 Last EDR Contact: 11/05/2020 Next Scheduled EDR Contact: 01/25/2021 Data Release Frequency: Quarterly Federal RCRA CORRACTS facilities list CORRACTS: Corrective Action Report CORRACTS identifies hazardous waste handlers with RCRA corrective action activity. Date of Government Version: 06/15/2020 Date Data Arrived at EDR: 06/22/2020 Date Made Active in Reports: 09/17/2020 Number of Days to Update: 87 Source: EPA Telephone: 800-424-9346 Last EDR Contact: 09/22/2020 Next Scheduled EDR Contact: 01/04/2021 Data Release Frequency: Quarterly Federal RCRA non-CORRACTS TSD facilities list RCRA-TSDF: RCRA - Treatment, Storage and Disposal RCRAInfo is EPA’s comprehensive information system, providing access to data supporting the Resource Conservation and Recovery Act (RCRA) of 1976 and the Hazardous and Solid Waste Amendments (HSWA) of 1984. The database includes selective information on sites which generate, transport, store, treat and/or dispose of hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA). Transporters are individuals or entities that move hazardous waste from the generator offsite to a facility that can recycle, treat, store, or dispose of the waste. TSDFs treat, store, or dispose of the waste. Date of Government Version: 06/15/2020 Date Data Arrived at EDR: 06/22/2020 Date Made Active in Reports: 09/18/2020 Number of Days to Update: 88 Source: Environmental Protection Agency Telephone: 303-312-6149 Last EDR Contact: 09/22/2020 Next Scheduled EDR Contact: 01/04/2021 Data Release Frequency: Quarterly Federal RCRA generators list RCRA-LQG: RCRA - Large Quantity Generators RCRAInfo is EPA’s comprehensive information system, providing access to data supporting the Resource Conservation and Recovery Act (RCRA) of 1976 and the Hazardous and Solid Waste Amendments (HSWA) of 1984. The database includes selective information on sites which generate, transport, store, treat and/or dispose of hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA). Large quantity generators (LQGs) generate over 1,000 kilograms (kg) of hazardous waste, or over 1 kg of acutely hazardous waste per month. Date of Government Version: 06/15/2020 Date Data Arrived at EDR: 06/22/2020 Date Made Active in Reports: 09/18/2020 Number of Days to Update: 88 Source: Environmental Protection Agency Telephone: 303-312-6149 Last EDR Contact: 09/22/2020 Next Scheduled EDR Contact: 01/04/2021 Data Release Frequency: Quarterly TC6253164.7s Page GR-3 GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING RCRA-SQG: RCRA - Small Quantity Generators RCRAInfo is EPA’s comprehensive information system, providing access to data supporting the Resource Conservation and Recovery Act (RCRA) of 1976 and the Hazardous and Solid Waste Amendments (HSWA) of 1984. The database includes selective information on sites which generate, transport, store, treat and/or dispose of hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA). Small quantity generators (SQGs) generate between 100 kg and 1,000 kg of hazardous waste per month. Date of Government Version: 06/15/2020 Date Data Arrived at EDR: 06/22/2020 Date Made Active in Reports: 09/18/2020 Number of Days to Update: 88 Source: Environmental Protection Agency Telephone: 303-312-6149 Last EDR Contact: 09/22/2020 Next Scheduled EDR Contact: 01/04/2021 Data Release Frequency: Quarterly RCRA-VSQG: RCRA - Very Small Quantity Generators (Formerly Conditionally Exempt Small Quantity Generators) RCRAInfo is EPA’s comprehensive information system, providing access to data supporting the Resource Conservation and Recovery Act (RCRA) of 1976 and the Hazardous and Solid Waste Amendments (HSWA) of 1984. The database includes selective information on sites which generate, transport, store, treat and/or dispose of hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA). Very small quantity generators (VSQGs) generate less than 100 kg of hazardous waste, or less than 1 kg of acutely hazardous waste per month. Date of Government Version: 06/15/2020 Date Data Arrived at EDR: 06/22/2020 Date Made Active in Reports: 09/18/2020 Number of Days to Update: 88 Source: Environmental Protection Agency Telephone: 303-312-6149 Last EDR Contact: 09/22/2020 Next Scheduled EDR Contact: 01/04/2021 Data Release Frequency: Quarterly Federal institutional controls / engineering controls registries LUCIS: Land Use Control Information System LUCIS contains records of land use control information pertaining to the former Navy Base Realignment and Closure properties. Date of Government Version: 05/15/2020 Date Data Arrived at EDR: 05/19/2020 Date Made Active in Reports: 06/18/2020 Number of Days to Update: 30 Source: Department of the Navy Telephone: 843-820-7326 Last EDR Contact: 11/05/2020 Next Scheduled EDR Contact: 02/22/2021 Data Release Frequency: Varies US ENG CONTROLS: Engineering Controls Sites List A listing of sites with engineering controls in place. Engineering controls include various forms of caps, building foundations, liners, and treatment methods to create pathway elimination for regulated substances to enter environmental media or effect human health. Date of Government Version: 02/13/2020 Date Data Arrived at EDR: 02/20/2020 Date Made Active in Reports: 05/15/2020 Number of Days to Update: 85 Source: Environmental Protection Agency Telephone: 703-603-0695 Last EDR Contact: 11/05/2020 Next Scheduled EDR Contact: 12/07/2020 Data Release Frequency: Varies US INST CONTROLS: Institutional Controls Sites List A listing of sites with institutional controls in place. Institutional controls include administrative measures, such as groundwater use restrictions, construction restrictions, property use restrictions, and post remediation care requirements intended to prevent exposure to contaminants remaining on site. Deed restrictions are generally required as part of the institutional controls. Date of Government Version: 02/13/2020 Date Data Arrived at EDR: 02/20/2020 Date Made Active in Reports: 05/15/2020 Number of Days to Update: 85 Source: Environmental Protection Agency Telephone: 703-603-0695 Last EDR Contact: 11/05/2020 Next Scheduled EDR Contact: 12/07/2020 Data Release Frequency: Varies TC6253164.7s Page GR-4 GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING Federal ERNS list ERNS: Emergency Response Notification System Emergency Response Notification System. ERNS records and stores information on reported releases of oil and hazardous substances. Date of Government Version: 06/15/2020 Date Data Arrived at EDR: 06/22/2020 Date Made Active in Reports: 09/17/2020 Number of Days to Update: 87 Source: National Response Center, United States Coast Guard Telephone: 202-267-2180 Last EDR Contact: 09/22/2020 Next Scheduled EDR Contact: 01/04/2021 Data Release Frequency: Quarterly State- and tribal - equivalent CERCLIS SHWS: This state does not maintain a SHWS list. See the Federal CERCLIS list and Federal NPL list. State Hazardous Waste Sites. State hazardous waste site records are the states’ equivalent to CERCLIS. These sites may or may not already be listed on the federal CERCLIS list. Priority sites planned for cleanup using state funds (state equivalent of Superfund) are identified along with sites where cleanup will be paid for by potentially responsible parties. Available information varies by state. Date of Government Version: N/A Date Data Arrived at EDR: N/A Date Made Active in Reports: N/A Number of Days to Update: N/A Source: Department of Public Health & Environment Telephone: 303-692-3300 Last EDR Contact: 08/14/2020 Next Scheduled EDR Contact: 11/23/2020 Data Release Frequency: N/A State and tribal landfill and/or solid waste disposal site lists SWF/LF: Solid Waste Sites & Facilities Solid Waste Facilities/Landfill Sites. SWF/LF type records typically contain an inventory of solid waste disposal facilities or landfills in a particular state. Depending on the state, these may be active or inactive facilities or open dumps that failed to meet RCRA Subtitle D Section 4004 criteria for solid waste landfills or disposal sites. Date of Government Version: 04/24/2020 Date Data Arrived at EDR: 05/05/2020 Date Made Active in Reports: 07/17/2020 Number of Days to Update: 73 Source: Department of Public Health & Environment Telephone: 303-692-3300 Last EDR Contact: 11/02/2020 Next Scheduled EDR Contact: 02/15/2021 Data Release Frequency: Varies State and tribal leaking storage tank lists LUST: Leaking Underground Storage Tank List Leaking Underground Storage Tank Incident Reports. LUST records contain an inventory of reported leaking underground storage tank incidents. Not all states maintain these records, and the information stored varies by state. Date of Government Version: 03/01/2018 Date Data Arrived at EDR: 03/07/2018 Date Made Active in Reports: 04/03/2018 Number of Days to Update: 27 Source: Department of Labor and Employment, Oil Inspection Section Telephone: 303-318-8521 Last EDR Contact: 03/07/2018 Next Scheduled EDR Contact: 06/18/2018 Data Release Frequency: Quarterly LTANKS: Petroleum Release Events Listing Active and Closed OPS Petroleum Release Events in Colorado. Includes the OPS Open Event locations, but also shows locations of closed events (releases that have been issued a No Further Action determination). Date of Government Version: 06/01/2020 Date Data Arrived at EDR: 06/03/2020 Date Made Active in Reports: 08/18/2020 Number of Days to Update: 76 Source: Department of Labor & Employment Telephone: 303-318-8525 Last EDR Contact: 08/31/2020 Next Scheduled EDR Contact: 12/14/2020 Data Release Frequency: Quarterly TC6253164.7s Page GR-5 GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING LAST: Leaking Aboveground Storage Tank Listing A listing of leaking aboveground storage tank sites. This list is no longer maintained. For current Leaking AST information, please see LTANKS. Date of Government Version: 03/01/2018 Date Data Arrived at EDR: 03/07/2018 Date Made Active in Reports: 04/03/2018 Number of Days to Update: 27 Source: Department of Labor & Employment Telephone: 303-318-8525 Last EDR Contact: 05/31/2018 Next Scheduled EDR Contact: 09/10/2018 Data Release Frequency: No Update Planned INDIAN LUST R10: Leaking Underground Storage Tanks on Indian Land LUSTs on Indian land in Alaska, Idaho, Oregon and Washington. Date of Government Version: 04/14/2020 Date Data Arrived at EDR: 05/20/2020 Date Made Active in Reports: 08/12/2020 Number of Days to Update: 84 Source: EPA Region 10 Telephone: 206-553-2857 Last EDR Contact: 10/23/2020 Next Scheduled EDR Contact: 02/01/2021 Data Release Frequency: Varies INDIAN LUST R1: Leaking Underground Storage Tanks on Indian Land A listing of leaking underground storage tank locations on Indian Land. Date of Government Version: 04/29/2020 Date Data Arrived at EDR: 05/20/2020 Date Made Active in Reports: 08/12/2020 Number of Days to Update: 84 Source: EPA Region 1 Telephone: 617-918-1313 Last EDR Contact: 10/23/2020 Next Scheduled EDR Contact: 02/01/2021 Data Release Frequency: Varies INDIAN LUST R4: Leaking Underground Storage Tanks on Indian Land LUSTs on Indian land in Florida, Mississippi and North Carolina. Date of Government Version: 04/14/2020 Date Data Arrived at EDR: 05/26/2020 Date Made Active in Reports: 08/12/2020 Number of Days to Update: 78 Source: EPA Region 4 Telephone: 404-562-8677 Last EDR Contact: 10/23/2020 Next Scheduled EDR Contact: 02/01/2021 Data Release Frequency: Varies INDIAN LUST R5: Leaking Underground Storage Tanks on Indian Land Leaking underground storage tanks located on Indian Land in Michigan, Minnesota and Wisconsin. Date of Government Version: 04/14/2020 Date Data Arrived at EDR: 05/20/2020 Date Made Active in Reports: 08/12/2020 Number of Days to Update: 84 Source: EPA, Region 5 Telephone: 312-886-7439 Last EDR Contact: 10/23/2020 Next Scheduled EDR Contact: 02/01/2021 Data Release Frequency: Varies INDIAN LUST R9: Leaking Underground Storage Tanks on Indian Land LUSTs on Indian land in Arizona, California, New Mexico and Nevada Date of Government Version: 04/08/2020 Date Data Arrived at EDR: 05/20/2020 Date Made Active in Reports: 08/12/2020 Number of Days to Update: 84 Source: Environmental Protection Agency Telephone: 415-972-3372 Last EDR Contact: 10/23/2020 Next Scheduled EDR Contact: 02/01/2021 Data Release Frequency: Varies INDIAN LUST R8: Leaking Underground Storage Tanks on Indian Land LUSTs on Indian land in Colorado, Montana, North Dakota, South Dakota, Utah and Wyoming. Date of Government Version: 04/14/2020 Date Data Arrived at EDR: 05/20/2020 Date Made Active in Reports: 08/12/2020 Number of Days to Update: 84 Source: EPA Region 8 Telephone: 303-312-6271 Last EDR Contact: 10/23/2020 Next Scheduled EDR Contact: 02/01/2021 Data Release Frequency: Varies TC6253164.7s Page GR-6 GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING INDIAN LUST R7: Leaking Underground Storage Tanks on Indian Land LUSTs on Indian land in Iowa, Kansas, and Nebraska Date of Government Version: 04/15/2020 Date Data Arrived at EDR: 05/20/2020 Date Made Active in Reports: 08/12/2020 Number of Days to Update: 84 Source: EPA Region 7 Telephone: 913-551-7003 Last EDR Contact: 10/23/2020 Next Scheduled EDR Contact: 02/01/2021 Data Release Frequency: Varies INDIAN LUST R6: Leaking Underground Storage Tanks on Indian Land LUSTs on Indian land in New Mexico and Oklahoma. Date of Government Version: 04/08/2020 Date Data Arrived at EDR: 05/20/2020 Date Made Active in Reports: 08/12/2020 Number of Days to Update: 84 Source: EPA Region 6 Telephone: 214-665-6597 Last EDR Contact: 10/23/2020 Next Scheduled EDR Contact: 02/01/2021 Data Release Frequency: Varies TRUST: Lust Trust Sites Reimbursement application package. The 1989 Colorado General Assembly established Colorado’s Petroleum Storage Tank Fund. The Fund reimburses eligible applicants for allowable costs incurred in cleaning up petroleum contamination from underground and aboveground petroleum storage tanks, as well as for third-party liability expenses. Remediation of contamination caused by railroad or aircraft fuel is not eligible for reimbursement. The Fund satisfies federal Environmental Protection Agency financial assurance requirements. Monies in the Fund come from various sources, predominantly the state environmental surcharge imposed on all petroleum products except railroad or aircraft fuel. Date of Government Version: 07/19/2020 Date Data Arrived at EDR: 07/20/2020 Date Made Active in Reports: 10/05/2020 Number of Days to Update: 77 Source: Department of Labor and Employment, Oil Inspection Section Telephone: 303-318-8521 Last EDR Contact: 09/16/2020 Next Scheduled EDR Contact: 01/04/2021 Data Release Frequency: Varies State and tribal registered storage tank lists FEMA UST: Underground Storage Tank Listing A listing of all FEMA owned underground storage tanks. Date of Government Version: 02/01/2020 Date Data Arrived at EDR: 03/19/2020 Date Made Active in Reports: 06/09/2020 Number of Days to Update: 82 Source: FEMA Telephone: 202-646-5797 Last EDR Contact: 10/01/2020 Next Scheduled EDR Contact: 01/18/2021 Data Release Frequency: Varies UST: Underground Storage Tank Database Registered Underground Storage Tanks. UST’s are regulated under Subtitle I of the Resource Conservation and Recovery Act (RCRA) and must be registered with the state department responsible for administering the UST program. Available information varies by state program. Date of Government Version: 06/01/2020 Date Data Arrived at EDR: 06/02/2020 Date Made Active in Reports: 07/30/2020 Number of Days to Update: 58 Source: Department of Labor and Employment, Oil Inspection Section Telephone: 303-318-8521 Last EDR Contact: 08/31/2020 Next Scheduled EDR Contact: 12/14/2020 Data Release Frequency: Quarterly AST: Aboveground Tank List Aboveground storage tank locations. Date of Government Version: 06/01/2020 Date Data Arrived at EDR: 06/02/2020 Date Made Active in Reports: 07/30/2020 Number of Days to Update: 58 Source: Department of Labor and Employment, Oil Inspection Section Telephone: 303-318-8521 Last EDR Contact: 08/31/2020 Next Scheduled EDR Contact: 12/14/2020 Data Release Frequency: Semi-Annually TC6253164.7s Page GR-7 GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING INDIAN UST R6: Underground Storage Tanks on Indian Land The Indian Underground Storage Tank (UST) database provides information about underground storage tanks on Indian land in EPA Region 6 (Louisiana, Arkansas, Oklahoma, New Mexico, Texas and 65 Tribes). Date of Government Version: 04/08/2020 Date Data Arrived at EDR: 05/20/2020 Date Made Active in Reports: 08/12/2020 Number of Days to Update: 84 Source: EPA Region 6 Telephone: 214-665-7591 Last EDR Contact: 10/23/2020 Next Scheduled EDR Contact: 02/01/2021 Data Release Frequency: Varies INDIAN UST R7: Underground Storage Tanks on Indian Land The Indian Underground Storage Tank (UST) database provides information about underground storage tanks on Indian land in EPA Region 7 (Iowa, Kansas, Missouri, Nebraska, and 9 Tribal Nations). Date of Government Version: 04/03/2020 Date Data Arrived at EDR: 05/20/2020 Date Made Active in Reports: 08/12/2020 Number of Days to Update: 84 Source: EPA Region 7 Telephone: 913-551-7003 Last EDR Contact: 10/23/2020 Next Scheduled EDR Contact: 02/01/2021 Data Release Frequency: Varies INDIAN UST R9: Underground Storage Tanks on Indian Land The Indian Underground Storage Tank (UST) database provides information about underground storage tanks on Indian land in EPA Region 9 (Arizona, California, Hawaii, Nevada, the Pacific Islands, and Tribal Nations). Date of Government Version: 04/08/2020 Date Data Arrived at EDR: 05/20/2020 Date Made Active in Reports: 08/12/2020 Number of Days to Update: 84 Source: EPA Region 9 Telephone: 415-972-3368 Last EDR Contact: 10/23/2020 Next Scheduled EDR Contact: 02/01/2021 Data Release Frequency: Varies INDIAN UST R10: Underground Storage Tanks on Indian Land The Indian Underground Storage Tank (UST) database provides information about underground storage tanks on Indian land in EPA Region 10 (Alaska, Idaho, Oregon, Washington, and Tribal Nations). Date of Government Version: 04/14/2020 Date Data Arrived at EDR: 05/20/2020 Date Made Active in Reports: 08/12/2020 Number of Days to Update: 84 Source: EPA Region 10 Telephone: 206-553-2857 Last EDR Contact: 10/23/2020 Next Scheduled EDR Contact: 02/01/2021 Data Release Frequency: Varies INDIAN UST R8: Underground Storage Tanks on Indian Land The Indian Underground Storage Tank (UST) database provides information about underground storage tanks on Indian land in EPA Region 8 (Colorado, Montana, North Dakota, South Dakota, Utah, Wyoming and 27 Tribal Nations). Date of Government Version: 04/14/2020 Date Data Arrived at EDR: 05/20/2020 Date Made Active in Reports: 08/13/2020 Number of Days to Update: 85 Source: EPA Region 8 Telephone: 303-312-6137 Last EDR Contact: 10/23/2020 Next Scheduled EDR Contact: 02/01/2021 Data Release Frequency: Varies INDIAN UST R1: Underground Storage Tanks on Indian Land The Indian Underground Storage Tank (UST) database provides information about underground storage tanks on Indian land in EPA Region 1 (Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont and ten Tribal Nations). Date of Government Version: 04/29/2020 Date Data Arrived at EDR: 05/20/2020 Date Made Active in Reports: 08/12/2020 Number of Days to Update: 84 Source: EPA, Region 1 Telephone: 617-918-1313 Last EDR Contact: 10/23/2020 Next Scheduled EDR Contact: 02/01/2021 Data Release Frequency: Varies TC6253164.7s Page GR-8 GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING INDIAN UST R4: Underground Storage Tanks on Indian Land The Indian Underground Storage Tank (UST) database provides information about underground storage tanks on Indian land in EPA Region 4 (Alabama, Florida, Georgia, Kentucky, Mississippi, North Carolina, South Carolina, Tennessee and Tribal Nations) Date of Government Version: 04/14/2020 Date Data Arrived at EDR: 05/26/2020 Date Made Active in Reports: 08/12/2020 Number of Days to Update: 78 Source: EPA Region 4 Telephone: 404-562-9424 Last EDR Contact: 10/23/2020 Next Scheduled EDR Contact: 02/01/2021 Data Release Frequency: Varies INDIAN UST R5: Underground Storage Tanks on Indian Land The Indian Underground Storage Tank (UST) database provides information about underground storage tanks on Indian land in EPA Region 5 (Michigan, Minnesota and Wisconsin and Tribal Nations). Date of Government Version: 04/14/2020 Date Data Arrived at EDR: 05/20/2020 Date Made Active in Reports: 08/12/2020 Number of Days to Update: 84 Source: EPA Region 5 Telephone: 312-886-6136 Last EDR Contact: 10/23/2020 Next Scheduled EDR Contact: 02/01/2021 Data Release Frequency: Varies State and tribal institutional control / engineering control registries AUL: Environmental Real Covenants List Senate Bill 01-145 gave authority to the Colorado Department of Public Health and Environment to approve requests to restrict the future use of a property using an enforceable agreement called an environmental covenant. When a contaminated site is not cleaned up completely, land use restrictions may be used to ensure that the selected cleanup remedy is adequately protective of human health and the environment. Date of Government Version: 07/21/2020 Date Data Arrived at EDR: 07/22/2020 Date Made Active in Reports: 10/05/2020 Number of Days to Update: 75 Source: Department of Public Health & Environment Telephone: 303-692-3331 Last EDR Contact: 10/20/2020 Next Scheduled EDR Contact: 02/08/2021 Data Release Frequency: Varies State and tribal voluntary cleanup sites VCP: Voluntary Cleanup & Redevelopment Act Application Tracking Report The Voluntary Cleanup and Redevelopment Act is intended to permit and encourage voluntary cleanups by providing a method to determine clean-up responsibilities in planning the reuse of property. The VCRA was intended for sites which were not covered by existing regulatory programs. Date of Government Version: 12/04/2019 Date Data Arrived at EDR: 01/07/2020 Date Made Active in Reports: 03/16/2020 Number of Days to Update: 69 Source: Department of Public Health and Environmental Telephone: 303-692-3331 Last EDR Contact: 10/09/2020 Next Scheduled EDR Contact: 01/18/2021 Data Release Frequency: Semi-Annually INDIAN VCP R1: Voluntary Cleanup Priority Listing A listing of voluntary cleanup priority sites located on Indian Land located in Region 1. Date of Government Version: 07/27/2015 Date Data Arrived at EDR: 09/29/2015 Date Made Active in Reports: 02/18/2016 Number of Days to Update: 142 Source: EPA, Region 1 Telephone: 617-918-1102 Last EDR Contact: 09/16/2020 Next Scheduled EDR Contact: 01/04/2021 Data Release Frequency: Varies INDIAN VCP R7: Voluntary Cleanup Priority Lisitng A listing of voluntary cleanup priority sites located on Indian Land located in Region 7. TC6253164.7s Page GR-9 GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING Date of Government Version: 03/20/2008 Date Data Arrived at EDR: 04/22/2008 Date Made Active in Reports: 05/19/2008 Number of Days to Update: 27 Source: EPA, Region 7 Telephone: 913-551-7365 Last EDR Contact: 04/20/2009 Next Scheduled EDR Contact: 07/20/2009 Data Release Frequency: Varies State and tribal Brownfields sites BROWNFIELDS: Brownfields Sites Listing Brownfields Sites Listing Date of Government Version: 04/09/2020 Date Data Arrived at EDR: 04/10/2020 Date Made Active in Reports: 07/01/2020 Number of Days to Update: 82 Source: Department of Public Health & Environment Telephone: 303-692-3331 Last EDR Contact: 10/05/2020 Next Scheduled EDR Contact: 02/01/2021 Data Release Frequency: Varies ADDITIONAL ENVIRONMENTAL RECORDS Local Brownfield lists US BROWNFIELDS: A Listing of Brownfields Sites Brownfields are real property, the expansion, redevelopment, or reuse of which may be complicated by the presence or potential presence of a hazardous substance, pollutant, or contaminant. Cleaning up and reinvesting in these properties takes development pressures off of undeveloped, open land, and both improves and protects the environment. Assessment, Cleanup and Redevelopment Exchange System (ACRES) stores information reported by EPA Brownfields grant recipients on brownfields properties assessed or cleaned up with grant funding as well as information on Targeted Brownfields Assessments performed by EPA Regions. A listing of ACRES Brownfield sites is obtained from Cleanups in My Community. Cleanups in My Community provides information on Brownfields properties for which information is reported back to EPA, as well as areas served by Brownfields grant programs. Date of Government Version: 06/01/2020 Date Data Arrived at EDR: 06/02/2020 Date Made Active in Reports: 06/09/2020 Number of Days to Update: 7 Source: Environmental Protection Agency Telephone: 202-566-2777 Last EDR Contact: 09/15/2020 Next Scheduled EDR Contact: 12/28/2020 Data Release Frequency: Semi-Annually Local Lists of Landfill / Solid Waste Disposal Sites SWRCY: Registered Recyclers Listing A listing of registered recycler locations in the state of Colorado. Date of Government Version: 06/03/2020 Date Data Arrived at EDR: 06/04/2020 Date Made Active in Reports: 08/14/2020 Number of Days to Update: 71 Source: Department of Public Health & Environment Telephone: 303-692-3337 Last EDR Contact: 09/01/2020 Next Scheduled EDR Contact: 12/21/2020 Data Release Frequency: Semi-Annually HISTORICAL LANDFILL: Historical Landfill List Abandoned/Inactive Landfills. Date of Government Version: 01/31/1993 Date Data Arrived at EDR: 04/24/1994 Date Made Active in Reports: 05/30/1994 Number of Days to Update: 36 Source: Department of Public Health & Environment Telephone: 303-692-3300 Last EDR Contact: 09/05/1996 Next Scheduled EDR Contact: N/A Data Release Frequency: No Update Planned INDIAN ODI: Report on the Status of Open Dumps on Indian Lands Location of open dumps on Indian land. TC6253164.7s Page GR-10 GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING Date of Government Version: 12/31/1998 Date Data Arrived at EDR: 12/03/2007 Date Made Active in Reports: 01/24/2008 Number of Days to Update: 52 Source: Environmental Protection Agency Telephone: 703-308-8245 Last EDR Contact: 10/20/2020 Next Scheduled EDR Contact: 02/08/2021 Data Release Frequency: Varies DEBRIS REGION 9: Torres Martinez Reservation Illegal Dump Site Locations A listing of illegal dump sites location on the Torres Martinez Indian Reservation located in eastern Riverside County and northern Imperial County, California. Date of Government Version: 01/12/2009 Date Data Arrived at EDR: 05/07/2009 Date Made Active in Reports: 09/21/2009 Number of Days to Update: 137 Source: EPA, Region 9 Telephone: 415-947-4219 Last EDR Contact: 10/13/2020 Next Scheduled EDR Contact: 02/01/2021 Data Release Frequency: No Update Planned ODI: Open Dump Inventory An open dump is defined as a disposal facility that does not comply with one or more of the Part 257 or Part 258 Subtitle D Criteria. Date of Government Version: 06/30/1985 Date Data Arrived at EDR: 08/09/2004 Date Made Active in Reports: 09/17/2004 Number of Days to Update: 39 Source: Environmental Protection Agency Telephone: 800-424-9346 Last EDR Contact: 06/09/2004 Next Scheduled EDR Contact: N/A Data Release Frequency: No Update Planned IHS OPEN DUMPS: Open Dumps on Indian Land A listing of all open dumps located on Indian Land in the United States. Date of Government Version: 04/01/2014 Date Data Arrived at EDR: 08/06/2014 Date Made Active in Reports: 01/29/2015 Number of Days to Update: 176 Source: Department of Health & Human Serivces, Indian Health Service Telephone: 301-443-1452 Last EDR Contact: 10/30/2020 Next Scheduled EDR Contact: 02/08/2021 Data Release Frequency: Varies DENVER CO HISTORIC FILL: Denver City & County Historic Fill Areas This dataset denotes the approximate locations of historical fill areas within the City and County of Denver (CCoD) and with within approximately three-quarters of a mile of the CCoD boundaries. The data is of a general nature and obtained from historic and current documents that may not be accurate or precise. Date of Government Version: 12/17/2019 Date Data Arrived at EDR: 01/07/2020 Date Made Active in Reports: 03/13/2020 Number of Days to Update: 66 Source: City & County of Denver Telephone: 720-913-5237 Last EDR Contact: 10/09/2020 Next Scheduled EDR Contact: 01/18/2021 Data Release Frequency: No Update Planned Local Lists of Hazardous waste / Contaminated Sites US HIST CDL: National Clandestine Laboratory Register A listing of clandestine drug lab locations that have been removed from the DEAs National Clandestine Laboratory Register. Date of Government Version: 03/18/2020 Date Data Arrived at EDR: 03/19/2020 Date Made Active in Reports: 06/09/2020 Number of Days to Update: 82 Source: Drug Enforcement Administration Telephone: 202-307-1000 Last EDR Contact: 08/19/2020 Next Scheduled EDR Contact: 12/07/2020 Data Release Frequency: No Update Planned CDL: Meth Lab Locations Meth lab locations that were reported to the Department of Public Health & Environment. TC6253164.7s Page GR-11 GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING Date of Government Version: 06/20/2020 Date Data Arrived at EDR: 07/09/2020 Date Made Active in Reports: 07/20/2020 Number of Days to Update: 11 Source: Department of Public Health and Environment Telephone: 303-692-3023 Last EDR Contact: 09/23/2020 Next Scheduled EDR Contact: 01/11/2021 Data Release Frequency: Quarterly US CDL: Clandestine Drug Labs A listing of clandestine drug lab locations. The U.S. Department of Justice ("the Department") provides this web site as a public service. It contains addresses of some locations where law enforcement agencies reported they found chemicals or other items that indicated the presence of either clandestine drug laboratories or dumpsites. In most cases, the source of the entries is not the Department, and the Department has not verified the entry and does not guarantee its accuracy. Members of the public must verify the accuracy of all entries by, for example, contacting local law enforcement and local health departments. Date of Government Version: 03/18/2020 Date Data Arrived at EDR: 03/19/2020 Date Made Active in Reports: 06/09/2020 Number of Days to Update: 82 Source: Drug Enforcement Administration Telephone: 202-307-1000 Last EDR Contact: 08/19/2020 Next Scheduled EDR Contact: 12/07/2020 Data Release Frequency: Quarterly Local Land Records LIENS 2: CERCLA Lien Information A Federal CERCLA (’Superfund’) lien can exist by operation of law at any site or property at which EPA has spent Superfund monies. These monies are spent to investigate and address releases and threatened releases of contamination. CERCLIS provides information as to the identity of these sites and properties. Date of Government Version: 07/29/2020 Date Data Arrived at EDR: 08/03/2020 Date Made Active in Reports: 08/25/2020 Number of Days to Update: 22 Source: Environmental Protection Agency Telephone: 202-564-6023 Last EDR Contact: 11/05/2020 Next Scheduled EDR Contact: 01/11/2021 Data Release Frequency: Semi-Annually Records of Emergency Release Reports HMIRS: Hazardous Materials Information Reporting System Hazardous Materials Incident Report System. HMIRS contains hazardous material spill incidents reported to DOT. Date of Government Version: 06/22/2020 Date Data Arrived at EDR: 06/23/2020 Date Made Active in Reports: 09/17/2020 Number of Days to Update: 86 Source: U.S. Department of Transportation Telephone: 202-366-4555 Last EDR Contact: 09/22/2020 Next Scheduled EDR Contact: 01/04/2021 Data Release Frequency: Quarterly SPILLS 2: Spills A listing of spills reported to the Oil & Gas Conservation Commission Date of Government Version: 06/15/2020 Date Data Arrived at EDR: 06/22/2020 Date Made Active in Reports: 09/08/2020 Number of Days to Update: 78 Source: Oil & Gas Conservation Commission Telephone: 303-894-2100 Last EDR Contact: 09/21/2020 Next Scheduled EDR Contact: 01/03/2021 Data Release Frequency: Quarterly CO ERNS: Spills Database State reported spills. Date of Government Version: 06/20/2020 Date Data Arrived at EDR: 07/09/2020 Date Made Active in Reports: 07/20/2020 Number of Days to Update: 11 Source: Department of Public Health and Environmental Telephone: 303-692-2000 Last EDR Contact: 09/23/2020 Next Scheduled EDR Contact: 01/11/2021 Data Release Frequency: Quarterly TC6253164.7s Page GR-12 GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING SPILLS 90: SPILLS90 data from FirstSearch Spills 90 includes those spill and release records available exclusively from FirstSearch databases. Typically, they may include chemical, oil and/or hazardous substance spills recorded after 1990. Duplicate records that are already included in EDR incident and release records are not included in Spills 90. Date of Government Version: 10/15/2012 Date Data Arrived at EDR: 01/03/2013 Date Made Active in Reports: 02/06/2013 Number of Days to Update: 34 Source: FirstSearch Telephone: N/A Last EDR Contact: 01/03/2013 Next Scheduled EDR Contact: N/A Data Release Frequency: No Update Planned Other Ascertainable Records RCRA NonGen / NLR: RCRA - Non Generators / No Longer Regulated RCRAInfo is EPA’s comprehensive information system, providing access to data supporting the Resource Conservation and Recovery Act (RCRA) of 1976 and the Hazardous and Solid Waste Amendments (HSWA) of 1984. The database includes selective information on sites which generate, transport, store, treat and/or dispose of hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA). Non-Generators do not presently generate hazardous waste. Date of Government Version: 06/15/2020 Date Data Arrived at EDR: 06/22/2020 Date Made Active in Reports: 09/18/2020 Number of Days to Update: 88 Source: Environmental Protection Agency Telephone: 303-312-6149 Last EDR Contact: 09/22/2020 Next Scheduled EDR Contact: 01/04/2021 Data Release Frequency: Quarterly FUDS: Formerly Used Defense Sites The listing includes locations of Formerly Used Defense Sites properties where the US Army Corps of Engineers is actively working or will take necessary cleanup actions. Date of Government Version: 08/05/2020 Date Data Arrived at EDR: 08/13/2020 Date Made Active in Reports: 10/21/2020 Number of Days to Update: 69 Source: U.S. Army Corps of Engineers Telephone: 202-528-4285 Last EDR Contact: 08/13/2020 Next Scheduled EDR Contact: 11/30/2020 Data Release Frequency: Varies DOD: Department of Defense Sites This data set consists of federally owned or administered lands, administered by the Department of Defense, that have any area equal to or greater than 640 acres of the United States, Puerto Rico, and the U.S. Virgin Islands. Date of Government Version: 12/31/2005 Date Data Arrived at EDR: 11/10/2006 Date Made Active in Reports: 01/11/2007 Number of Days to Update: 62 Source: USGS Telephone: 888-275-8747 Last EDR Contact: 10/13/2020 Next Scheduled EDR Contact: 01/25/2021 Data Release Frequency: Semi-Annually FEDLAND: Federal and Indian Lands Federally and Indian administrated lands of the United States. Lands included are administrated by: Army Corps of Engineers, Bureau of Reclamation, National Wild and Scenic River, National Wildlife Refuge, Public Domain Land, Wilderness, Wilderness Study Area, Wildlife Management Area, Bureau of Indian Affairs, Bureau of Land Management, Department of Justice, Forest Service, Fish and Wildlife Service, National Park Service. Date of Government Version: 04/02/2018 Date Data Arrived at EDR: 04/11/2018 Date Made Active in Reports: 11/06/2019 Number of Days to Update: 574 Source: U.S. Geological Survey Telephone: 888-275-8747 Last EDR Contact: 10/08/2020 Next Scheduled EDR Contact: 01/18/2021 Data Release Frequency: N/A SCRD DRYCLEANERS: State Coalition for Remediation of Drycleaners Listing The State Coalition for Remediation of Drycleaners was established in 1998, with support from the U.S. EPA Office of Superfund Remediation and Technology Innovation. It is comprised of representatives of states with established drycleaner remediation programs. Currently the member states are Alabama, Connecticut, Florida, Illinois, Kansas, Minnesota, Missouri, North Carolina, Oregon, South Carolina, Tennessee, Texas, and Wisconsin. TC6253164.7s Page GR-13 GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING Date of Government Version: 01/01/2017 Date Data Arrived at EDR: 02/03/2017 Date Made Active in Reports: 04/07/2017 Number of Days to Update: 63 Source: Environmental Protection Agency Telephone: 615-532-8599 Last EDR Contact: 08/05/2020 Next Scheduled EDR Contact: 11/23/2020 Data Release Frequency: Varies US FIN ASSUR: Financial Assurance Information All owners and operators of facilities that treat, store, or dispose of hazardous waste are required to provide proof that they will have sufficient funds to pay for the clean up, closure, and post-closure care of their facilities. Date of Government Version: 06/15/2020 Date Data Arrived at EDR: 06/22/2020 Date Made Active in Reports: 09/10/2020 Number of Days to Update: 80 Source: Environmental Protection Agency Telephone: 202-566-1917 Last EDR Contact: 09/22/2020 Next Scheduled EDR Contact: 01/04/2021 Data Release Frequency: Quarterly EPA WATCH LIST: EPA WATCH LIST EPA maintains a "Watch List" to facilitate dialogue between EPA, state and local environmental agencies on enforcement matters relating to facilities with alleged violations identified as either significant or high priority. Being on the Watch List does not mean that the facility has actually violated the law only that an investigation by EPA or a state or local environmental agency has led those organizations to allege that an unproven violation has in fact occurred. Being on the Watch List does not represent a higher level of concern regarding the alleged violations that were detected, but instead indicates cases requiring additional dialogue between EPA, state and local agencies - primarily because of the length of time the alleged violation has gone unaddressed or unresolved. Date of Government Version: 08/30/2013 Date Data Arrived at EDR: 03/21/2014 Date Made Active in Reports: 06/17/2014 Number of Days to Update: 88 Source: Environmental Protection Agency Telephone: 617-520-3000 Last EDR Contact: 11/02/2020 Next Scheduled EDR Contact: 02/15/2021 Data Release Frequency: Quarterly 2020 COR ACTION: 2020 Corrective Action Program List The EPA has set ambitious goals for the RCRA Corrective Action program by creating the 2020 Corrective Action Universe. This RCRA cleanup baseline includes facilities expected to need corrective action. The 2020 universe contains a wide variety of sites. Some properties are heavily contaminated while others were contaminated but have since been cleaned up. Still others have not been fully investigated yet, and may require little or no remediation. Inclusion in the 2020 Universe does not necessarily imply failure on the part of a facility to meet its RCRA obligations. Date of Government Version: 09/30/2017 Date Data Arrived at EDR: 05/08/2018 Date Made Active in Reports: 07/20/2018 Number of Days to Update: 73 Source: Environmental Protection Agency Telephone: 703-308-4044 Last EDR Contact: 08/06/2020 Next Scheduled EDR Contact: 11/16/2020 Data Release Frequency: Varies TSCA: Toxic Substances Control Act Toxic Substances Control Act. TSCA identifies manufacturers and importers of chemical substances included on the TSCA Chemical Substance Inventory list. It includes data on the production volume of these substances by plant site. Date of Government Version: 12/31/2016 Date Data Arrived at EDR: 06/17/2020 Date Made Active in Reports: 09/10/2020 Number of Days to Update: 85 Source: EPA Telephone: 202-260-5521 Last EDR Contact: 09/18/2020 Next Scheduled EDR Contact: 12/28/2020 Data Release Frequency: Every 4 Years TRIS: Toxic Chemical Release Inventory System Toxic Release Inventory System. TRIS identifies facilities which release toxic chemicals to the air, water and land in reportable quantities under SARA Title III Section 313. TC6253164.7s Page GR-14 GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING Date of Government Version: 12/31/2018 Date Data Arrived at EDR: 08/14/2020 Date Made Active in Reports: 11/04/2020 Number of Days to Update: 82 Source: EPA Telephone: 202-566-0250 Last EDR Contact: 08/14/2020 Next Scheduled EDR Contact: 11/30/2020 Data Release Frequency: Annually SSTS: Section 7 Tracking Systems Section 7 of the Federal Insecticide, Fungicide and Rodenticide Act, as amended (92 Stat. 829) requires all registered pesticide-producing establishments to submit a report to the Environmental Protection Agency by March 1st each year. Each establishment must report the types and amounts of pesticides, active ingredients and devices being produced, and those having been produced and sold or distributed in the past year. Date of Government Version: 07/20/2020 Date Data Arrived at EDR: 07/21/2020 Date Made Active in Reports: 10/08/2020 Number of Days to Update: 79 Source: EPA Telephone: 202-564-4203 Last EDR Contact: 10/19/2020 Next Scheduled EDR Contact: 02/01/2021 Data Release Frequency: Annually ROD: Records Of Decision Record of Decision. ROD documents mandate a permanent remedy at an NPL (Superfund) site containing technical and health information to aid in the cleanup. Date of Government Version: 07/29/2020 Date Data Arrived at EDR: 08/03/2020 Date Made Active in Reports: 08/25/2020 Number of Days to Update: 22 Source: EPA Telephone: 703-416-0223 Last EDR Contact: 11/05/2020 Next Scheduled EDR Contact: 12/14/2020 Data Release Frequency: Annually RMP: Risk Management Plans When Congress passed the Clean Air Act Amendments of 1990, it required EPA to publish regulations and guidance for chemical accident prevention at facilities using extremely hazardous substances. The Risk Management Program Rule (RMP Rule) was written to implement Section 112(r) of these amendments. The rule, which built upon existing industry codes and standards, requires companies of all sizes that use certain flammable and toxic substances to develop a Risk Management Program, which includes a(n): Hazard assessment that details the potential effects of an accidental release, an accident history of the last five years, and an evaluation of worst-case and alternative accidental releases; Prevention program that includes safety precautions and maintenance, monitoring, and employee training measures; and Emergency response program that spells out emergency health care, employee training measures and procedures for informing the public and response agencies (e.g the fire department) should an accident occur. Date of Government Version: 07/24/2020 Date Data Arrived at EDR: 08/03/2020 Date Made Active in Reports: 10/21/2020 Number of Days to Update: 79 Source: Environmental Protection Agency Telephone: 202-564-8600 Last EDR Contact: 10/14/2020 Next Scheduled EDR Contact: 02/01/2021 Data Release Frequency: Varies RAATS: RCRA Administrative Action Tracking System RCRA Administration Action Tracking System. RAATS contains records based on enforcement actions issued under RCRA pertaining to major violators and includes administrative and civil actions brought by the EPA. For administration actions after September 30, 1995, data entry in the RAATS database was discontinued. EPA will retain a copy of the database for historical records. It was necessary to terminate RAATS because a decrease in agency resources made it impossible to continue to update the information contained in the database. Date of Government Version: 04/17/1995 Date Data Arrived at EDR: 07/03/1995 Date Made Active in Reports: 08/07/1995 Number of Days to Update: 35 Source: EPA Telephone: 202-564-4104 Last EDR Contact: 06/02/2008 Next Scheduled EDR Contact: 09/01/2008 Data Release Frequency: No Update Planned TC6253164.7s Page GR-15 GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING PRP: Potentially Responsible Parties A listing of verified Potentially Responsible Parties Date of Government Version: 04/27/2020 Date Data Arrived at EDR: 05/06/2020 Date Made Active in Reports: 06/09/2020 Number of Days to Update: 34 Source: EPA Telephone: 202-564-6023 Last EDR Contact: 11/05/2020 Next Scheduled EDR Contact: 02/15/2021 Data Release Frequency: Quarterly PADS: PCB Activity Database System PCB Activity Database. PADS Identifies generators, transporters, commercial storers and/or brokers and disposers of PCB’s who are required to notify the EPA of such activities. Date of Government Version: 10/09/2019 Date Data Arrived at EDR: 10/11/2019 Date Made Active in Reports: 12/20/2019 Number of Days to Update: 70 Source: EPA Telephone: 202-566-0500 Last EDR Contact: 10/02/2020 Next Scheduled EDR Contact: 01/18/2021 Data Release Frequency: Annually ICIS: Integrated Compliance Information System The Integrated Compliance Information System (ICIS) supports the information needs of the national enforcement and compliance program as well as the unique needs of the National Pollutant Discharge Elimination System (NPDES) program. Date of Government Version: 11/18/2016 Date Data Arrived at EDR: 11/23/2016 Date Made Active in Reports: 02/10/2017 Number of Days to Update: 79 Source: Environmental Protection Agency Telephone: 202-564-2501 Last EDR Contact: 10/01/2020 Next Scheduled EDR Contact: 01/18/2021 Data Release Frequency: Quarterly FTTS: FIFRA/ TSCA Tracking System - FIFRA (Federal Insecticide, Fungicide, & Rodenticide Act)/TSCA (Toxic Substances Control Act) FTTS tracks administrative cases and pesticide enforcement actions and compliance activities related to FIFRA, TSCA and EPCRA (Emergency Planning and Community Right-to-Know Act). To maintain currency, EDR contacts the Agency on a quarterly basis. Date of Government Version: 04/09/2009 Date Data Arrived at EDR: 04/16/2009 Date Made Active in Reports: 05/11/2009 Number of Days to Update: 25 Source: EPA/Office of Prevention, Pesticides and Toxic Substances Telephone: 202-566-1667 Last EDR Contact: 08/18/2017 Next Scheduled EDR Contact: 12/04/2017 Data Release Frequency: No Update Planned FTTS INSP: FIFRA/ TSCA Tracking System - FIFRA (Federal Insecticide, Fungicide, & Rodenticide Act)/TSCA (Toxic Substances Control Act) A listing of FIFRA/TSCA Tracking System (FTTS) inspections and enforcements. Date of Government Version: 04/09/2009 Date Data Arrived at EDR: 04/16/2009 Date Made Active in Reports: 05/11/2009 Number of Days to Update: 25 Source: EPA Telephone: 202-566-1667 Last EDR Contact: 08/18/2017 Next Scheduled EDR Contact: 12/04/2017 Data Release Frequency: No Update Planned MLTS: Material Licensing Tracking System MLTS is maintained by the Nuclear Regulatory Commission and contains a list of approximately 8,100 sites which possess or use radioactive materials and which are subject to NRC licensing requirements. To maintain currency, EDR contacts the Agency on a quarterly basis. Date of Government Version: 08/05/2020 Date Data Arrived at EDR: 08/10/2020 Date Made Active in Reports: 10/08/2020 Number of Days to Update: 59 Source: Nuclear Regulatory Commission Telephone: 301-415-7169 Last EDR Contact: 10/13/2020 Next Scheduled EDR Contact: 01/31/2021 Data Release Frequency: Quarterly TC6253164.7s Page GR-16 GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING COAL ASH DOE: Steam-Electric Plant Operation Data A listing of power plants that store ash in surface ponds. Date of Government Version: 12/31/2018 Date Data Arrived at EDR: 12/04/2019 Date Made Active in Reports: 01/15/2020 Number of Days to Update: 42 Source: Department of Energy Telephone: 202-586-8719 Last EDR Contact: 09/04/2020 Next Scheduled EDR Contact: 12/14/2020 Data Release Frequency: Varies COAL ASH EPA: Coal Combustion Residues Surface Impoundments List A listing of coal combustion residues surface impoundments with high hazard potential ratings. Date of Government Version: 01/12/2017 Date Data Arrived at EDR: 03/05/2019 Date Made Active in Reports: 11/11/2019 Number of Days to Update: 251 Source: Environmental Protection Agency Telephone: N/A Last EDR Contact: 08/31/2020 Next Scheduled EDR Contact: 12/14/2020 Data Release Frequency: Varies PCB TRANSFORMER: PCB Transformer Registration Database The database of PCB transformer registrations that includes all PCB registration submittals. Date of Government Version: 09/13/2019 Date Data Arrived at EDR: 11/06/2019 Date Made Active in Reports: 02/10/2020 Number of Days to Update: 96 Source: Environmental Protection Agency Telephone: 202-566-0517 Last EDR Contact: 08/06/2020 Next Scheduled EDR Contact: 11/16/2020 Data Release Frequency: Varies RADINFO: Radiation Information Database The Radiation Information Database (RADINFO) contains information about facilities that are regulated by U.S. Environmental Protection Agency (EPA) regulations for radiation and radioactivity. Date of Government Version: 07/01/2019 Date Data Arrived at EDR: 07/01/2019 Date Made Active in Reports: 09/23/2019 Number of Days to Update: 84 Source: Environmental Protection Agency Telephone: 202-343-9775 Last EDR Contact: 09/24/2020 Next Scheduled EDR Contact: 01/11/2021 Data Release Frequency: Quarterly HIST FTTS: FIFRA/TSCA Tracking System Administrative Case Listing A complete administrative case listing from the FIFRA/TSCA Tracking System (FTTS) for all ten EPA regions. The information was obtained from the National Compliance Database (NCDB). NCDB supports the implementation of FIFRA (Federal Insecticide, Fungicide, and Rodenticide Act) and TSCA (Toxic Substances Control Act). Some EPA regions are now closing out records. Because of that, and the fact that some EPA regions are not providing EPA Headquarters with updated records, it was decided to create a HIST FTTS database. It included records that may not be included in the newer FTTS database updates. This database is no longer updated. Date of Government Version: 10/19/2006 Date Data Arrived at EDR: 03/01/2007 Date Made Active in Reports: 04/10/2007 Number of Days to Update: 40 Source: Environmental Protection Agency Telephone: 202-564-2501 Last EDR Contact: 12/17/2007 Next Scheduled EDR Contact: 03/17/2008 Data Release Frequency: No Update Planned HIST FTTS INSP: FIFRA/TSCA Tracking System Inspection & Enforcement Case Listing A complete inspection and enforcement case listing from the FIFRA/TSCA Tracking System (FTTS) for all ten EPA regions. The information was obtained from the National Compliance Database (NCDB). NCDB supports the implementation of FIFRA (Federal Insecticide, Fungicide, and Rodenticide Act) and TSCA (Toxic Substances Control Act). Some EPA regions are now closing out records. Because of that, and the fact that some EPA regions are not providing EPA Headquarters with updated records, it was decided to create a HIST FTTS database. It included records that may not be included in the newer FTTS database updates. This database is no longer updated. TC6253164.7s Page GR-17 GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING Date of Government Version: 10/19/2006 Date Data Arrived at EDR: 03/01/2007 Date Made Active in Reports: 04/10/2007 Number of Days to Update: 40 Source: Environmental Protection Agency Telephone: 202-564-2501 Last EDR Contact: 12/17/2008 Next Scheduled EDR Contact: 03/17/2008 Data Release Frequency: No Update Planned DOT OPS: Incident and Accident Data Department of Transporation, Office of Pipeline Safety Incident and Accident data. Date of Government Version: 01/02/2020 Date Data Arrived at EDR: 01/28/2020 Date Made Active in Reports: 04/17/2020 Number of Days to Update: 80 Source: Department of Transporation, Office of Pipeline Safety Telephone: 202-366-4595 Last EDR Contact: 10/27/2020 Next Scheduled EDR Contact: 02/08/2021 Data Release Frequency: Quarterly CONSENT: Superfund (CERCLA) Consent Decrees Major legal settlements that establish responsibility and standards for cleanup at NPL (Superfund) sites. Released periodically by United States District Courts after settlement by parties to litigation matters. Date of Government Version: 06/30/2020 Date Data Arrived at EDR: 07/15/2020 Date Made Active in Reports: 07/21/2020 Number of Days to Update: 6 Source: Department of Justice, Consent Decree Library Telephone: Varies Last EDR Contact: 10/01/2020 Next Scheduled EDR Contact: 01/18/2021 Data Release Frequency: Varies BRS: Biennial Reporting System The Biennial Reporting System is a national system administered by the EPA that collects data on the generation and management of hazardous waste. BRS captures detailed data from two groups: Large Quantity Generators (LQG) and Treatment, Storage, and Disposal Facilities. Date of Government Version: 12/31/2015 Date Data Arrived at EDR: 02/22/2017 Date Made Active in Reports: 09/28/2017 Number of Days to Update: 218 Source: EPA/NTIS Telephone: 800-424-9346 Last EDR Contact: 09/22/2020 Next Scheduled EDR Contact: 01/04/2021 Data Release Frequency: Biennially INDIAN RESERV: Indian Reservations This map layer portrays Indian administered lands of the United States that have any area equal to or greater than 640 acres. Date of Government Version: 12/31/2014 Date Data Arrived at EDR: 07/14/2015 Date Made Active in Reports: 01/10/2017 Number of Days to Update: 546 Source: USGS Telephone: 202-208-3710 Last EDR Contact: 10/06/2020 Next Scheduled EDR Contact: 01/18/2021 Data Release Frequency: Semi-Annually FUSRAP: Formerly Utilized Sites Remedial Action Program DOE established the Formerly Utilized Sites Remedial Action Program (FUSRAP) in 1974 to remediate sites where radioactive contamination remained from Manhattan Project and early U.S. Atomic Energy Commission (AEC) operations. Date of Government Version: 08/08/2017 Date Data Arrived at EDR: 09/11/2018 Date Made Active in Reports: 09/14/2018 Number of Days to Update: 3 Source: Department of Energy Telephone: 202-586-3559 Last EDR Contact: 07/28/2020 Next Scheduled EDR Contact: 11/16/2020 Data Release Frequency: Varies UMTRA: Uranium Mill Tailings Sites Uranium ore was mined by private companies for federal government use in national defense programs. When the mills shut down, large piles of the sand-like material (mill tailings) remain after uranium has been extracted from the ore. Levels of human exposure to radioactive materials from the piles are low; however, in some cases tailings were used as construction materials before the potential health hazards of the tailings were recognized. TC6253164.7s Page GR-18 GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING Date of Government Version: 08/30/2019 Date Data Arrived at EDR: 11/15/2019 Date Made Active in Reports: 01/28/2020 Number of Days to Update: 74 Source: Department of Energy Telephone: 505-845-0011 Last EDR Contact: 08/21/2020 Next Scheduled EDR Contact: 11/30/2020 Data Release Frequency: Varies LEAD SMELTER 1: Lead Smelter Sites A listing of former lead smelter site locations. Date of Government Version: 07/29/2020 Date Data Arrived at EDR: 08/03/2020 Date Made Active in Reports: 08/25/2020 Number of Days to Update: 22 Source: Environmental Protection Agency Telephone: 703-603-8787 Last EDR Contact: 11/05/2020 Next Scheduled EDR Contact: 01/11/2021 Data Release Frequency: Varies LEAD SMELTER 2: Lead Smelter Sites A list of several hundred sites in the U.S. where secondary lead smelting was done from 1931and 1964. These sites may pose a threat to public health through ingestion or inhalation of contaminated soil or dust Date of Government Version: 04/05/2001 Date Data Arrived at EDR: 10/27/2010 Date Made Active in Reports: 12/02/2010 Number of Days to Update: 36 Source: American Journal of Public Health Telephone: 703-305-6451 Last EDR Contact: 12/02/2009 Next Scheduled EDR Contact: N/A Data Release Frequency: No Update Planned US AIRS (AFS): Aerometric Information Retrieval System Facility Subsystem (AFS) The database is a sub-system of Aerometric Information Retrieval System (AIRS). AFS contains compliance data on air pollution point sources regulated by the U.S. EPA and/or state and local air regulatory agencies. This information comes from source reports by various stationary sources of air pollution, such as electric power plants, steel mills, factories, and universities, and provides information about the air pollutants they produce. Action, air program, air program pollutant, and general level plant data. It is used to track emissions and compliance data from industrial plants. Date of Government Version: 10/12/2016 Date Data Arrived at EDR: 10/26/2016 Date Made Active in Reports: 02/03/2017 Number of Days to Update: 100 Source: EPA Telephone: 202-564-2496 Last EDR Contact: 09/26/2017 Next Scheduled EDR Contact: 01/08/2018 Data Release Frequency: Annually US AIRS MINOR: Air Facility System Data A listing of minor source facilities. Date of Government Version: 10/12/2016 Date Data Arrived at EDR: 10/26/2016 Date Made Active in Reports: 02/03/2017 Number of Days to Update: 100 Source: EPA Telephone: 202-564-2496 Last EDR Contact: 09/26/2017 Next Scheduled EDR Contact: 01/08/2018 Data Release Frequency: Annually US MINES: Mines Master Index File Contains all mine identification numbers issued for mines active or opened since 1971. The data also includes violation information. Date of Government Version: 05/01/2020 Date Data Arrived at EDR: 05/21/2020 Date Made Active in Reports: 08/13/2020 Number of Days to Update: 84 Source: Department of Labor, Mine Safety and Health Administration Telephone: 303-231-5959 Last EDR Contact: 08/25/2020 Next Scheduled EDR Contact: 12/07/2020 Data Release Frequency: Semi-Annually MINES VIOLATIONS: MSHA Violation Assessment Data Mines violation and assessment information. Department of Labor, Mine Safety & Health Administration. TC6253164.7s Page GR-19 GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING Date of Government Version: 05/28/2020 Date Data Arrived at EDR: 05/28/2020 Date Made Active in Reports: 08/13/2020 Number of Days to Update: 77 Source: DOL, Mine Safety & Health Admi Telephone: 202-693-9424 Last EDR Contact: 09/10/2020 Next Scheduled EDR Contact: 12/14/2020 Data Release Frequency: Quarterly US MINES 2: Ferrous and Nonferrous Metal Mines Database Listing This map layer includes ferrous (ferrous metal mines are facilities that extract ferrous metals, such as iron ore or molybdenum) and nonferrous (Nonferrous metal mines are facilities that extract nonferrous metals, such as gold, silver, copper, zinc, and lead) metal mines in the United States. Date of Government Version: 05/06/2020 Date Data Arrived at EDR: 05/27/2020 Date Made Active in Reports: 08/13/2020 Number of Days to Update: 78 Source: USGS Telephone: 703-648-7709 Last EDR Contact: 08/28/2020 Next Scheduled EDR Contact: 12/07/2020 Data Release Frequency: Varies US MINES 3: Active Mines & Mineral Plants Database Listing Active Mines and Mineral Processing Plant operations for commodities monitored by the Minerals Information Team of the USGS. Date of Government Version: 04/14/2011 Date Data Arrived at EDR: 06/08/2011 Date Made Active in Reports: 09/13/2011 Number of Days to Update: 97 Source: USGS Telephone: 703-648-7709 Last EDR Contact: 08/28/2020 Next Scheduled EDR Contact: 12/07/2020 Data Release Frequency: Varies ABANDONED MINES: Abandoned Mines An inventory of land and water impacted by past mining (primarily coal mining) is maintained by OSMRE to provide information needed to implement the Surface Mining Control and Reclamation Act of 1977 (SMCRA). The inventory contains information on the location, type, and extent of AML impacts, as well as, information on the cost associated with the reclamation of those problems. The inventory is based upon field surveys by State, Tribal, and OSMRE program officials. It is dynamic to the extent that it is modified as new problems are identified and existing problems are reclaimed. Date of Government Version: 06/22/2020 Date Data Arrived at EDR: 06/22/2020 Date Made Active in Reports: 09/10/2020 Number of Days to Update: 80 Source: Department of Interior Telephone: 202-208-2609 Last EDR Contact: 09/16/2020 Next Scheduled EDR Contact: 12/21/2020 Data Release Frequency: Quarterly FINDS: Facility Index System/Facility Registry System Facility Index System. FINDS contains both facility information and ’pointers’ to other sources that contain more detail. EDR includes the following FINDS databases in this report: PCS (Permit Compliance System), AIRS (Aerometric Information Retrieval System), DOCKET (Enforcement Docket used to manage and track information on civil judicial enforcement cases for all environmental statutes), FURS (Federal Underground Injection Control), C-DOCKET (Criminal Docket System used to track criminal enforcement actions for all environmental statutes), FFIS (Federal Facilities Information System), STATE (State Environmental Laws and Statutes), and PADS (PCB Activity Data System). Date of Government Version: 02/03/2020 Date Data Arrived at EDR: 03/03/2020 Date Made Active in Reports: 05/28/2020 Number of Days to Update: 86 Source: EPA Telephone: (303) 312-6312 Last EDR Contact: 09/15/2020 Next Scheduled EDR Contact: 12/14/2020 Data Release Frequency: Quarterly UXO: Unexploded Ordnance Sites A listing of unexploded ordnance site locations Date of Government Version: 12/31/2018 Date Data Arrived at EDR: 07/02/2020 Date Made Active in Reports: 09/17/2020 Number of Days to Update: 77 Source: Department of Defense Telephone: 703-704-1564 Last EDR Contact: 10/08/2020 Next Scheduled EDR Contact: 01/25/2021 Data Release Frequency: Varies TC6253164.7s Page GR-20 GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING DOCKET HWC: Hazardous Waste Compliance Docket Listing A complete list of the Federal Agency Hazardous Waste Compliance Docket Facilities. Date of Government Version: 05/31/2018 Date Data Arrived at EDR: 07/26/2018 Date Made Active in Reports: 10/05/2018 Number of Days to Update: 71 Source: Environmental Protection Agency Telephone: 202-564-0527 Last EDR Contact: 08/19/2020 Next Scheduled EDR Contact: 12/07/2020 Data Release Frequency: Varies ECHO: Enforcement & Compliance History Information ECHO provides integrated compliance and enforcement information for about 800,000 regulated facilities nationwide. Date of Government Version: 06/27/2020 Date Data Arrived at EDR: 07/02/2020 Date Made Active in Reports: 09/28/2020 Number of Days to Update: 88 Source: Environmental Protection Agency Telephone: 202-564-2280 Last EDR Contact: 10/06/2020 Next Scheduled EDR Contact: 01/18/2021 Data Release Frequency: Quarterly FUELS PROGRAM: EPA Fuels Program Registered Listing This listing includes facilities that are registered under the Part 80 (Code of Federal Regulations) EPA Fuels Programs. All companies now are required to submit new and updated registrations. Date of Government Version: 08/17/2020 Date Data Arrived at EDR: 08/17/2020 Date Made Active in Reports: 10/21/2020 Number of Days to Update: 65 Source: EPA Telephone: 800-385-6164 Last EDR Contact: 08/17/2020 Next Scheduled EDR Contact: 11/30/2020 Data Release Frequency: Quarterly AIRS: Permitted Facility & Emissions Listing A listing of Air Pollution Control Division permits and emissions data. Date of Government Version: 05/29/2020 Date Data Arrived at EDR: 05/29/2020 Date Made Active in Reports: 08/18/2020 Number of Days to Update: 81 Source: Department of Public Health & Environment Telephone: 303-692-3213 Last EDR Contact: 08/25/2020 Next Scheduled EDR Contact: 12/14/2020 Data Release Frequency: Varies ASBESTOS: Asbestos Abatement & Demolition Projects Asbestos abatement and demolition projects by the contractor. Date of Government Version: 11/06/2019 Date Data Arrived at EDR: 01/09/2020 Date Made Active in Reports: 03/16/2020 Number of Days to Update: 67 Source: Department of Public Health & Environment Telephone: 303-692-3100 Last EDR Contact: 10/28/2020 Next Scheduled EDR Contact: 02/15/2021 Data Release Frequency: Semi-Annually METHANE SITE: Methane Site Investigations - Jefferson County 1980 The objectives of the study are to define as closely as possible the boundaries of methane producing solid waste landfills. Date of Government Version: 12/31/1980 Date Data Arrived at EDR: 02/13/1995 Date Made Active in Reports: 04/04/1995 Number of Days to Update: 50 Source: Jefferson County Health Department Telephone: 303-239-7175 Last EDR Contact: 01/27/1995 Next Scheduled EDR Contact: N/A Data Release Frequency: No Update Planned METHANE INVESTIGATION: Methane Gas & Swamp Findings The primary objective of this study was to assess methane gas related hazards at selected landfill sites in Colorado. These sites were selected by the Colorado Department of Health following evaluation of responses received from County and Municipal agencies about completed and existing landfills within their jurisdiction. TC6253164.7s Page GR-21 GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING Date of Government Version: 03/15/1979 Date Data Arrived at EDR: 02/13/1995 Date Made Active in Reports: 04/04/1995 Number of Days to Update: 50 Source: Department of Health Telephone: 303-640-3335 Last EDR Contact: 01/27/1995 Next Scheduled EDR Contact: N/A Data Release Frequency: No Update Planned DRYCLEANERS: Drycleaner Facilities A listing of drycleaning facilities. Date of Government Version: 05/29/2020 Date Data Arrived at EDR: 05/29/2020 Date Made Active in Reports: 08/12/2020 Number of Days to Update: 75 Source: Department of Public Health & Environment Telephone: 303-692-3213 Last EDR Contact: 08/25/2020 Next Scheduled EDR Contact: 12/14/2020 Data Release Frequency: Varies Financial Assurance 1: Financial Assurance Information Listing A listing of financial assurance information for hazardous waste facilities. Financial assurance is intended to ensure that resources are available to pay for the cost of closure, post-closure care, and corrective measures if the owner or operator of a regulated facility is unable or unwilling to pay. Date of Government Version: 06/30/2020 Date Data Arrived at EDR: 07/08/2020 Date Made Active in Reports: 09/24/2020 Number of Days to Update: 78 Source: Department of Public Health & Environment Telephone: 303-692-3350 Last EDR Contact: 09/23/2020 Next Scheduled EDR Contact: 01/11/2021 Data Release Frequency: Varies Financial Assurance 2: Financial Assurance Information Listing A listing of financial assurance information for solid waste facilities. Financial assurance is intended to ensure that resources are available to pay for the cost of closure, post-closure care, and corrective measures if the owner or operator of a regulated facility is unable or unwilling to pay. Date of Government Version: 06/30/2020 Date Data Arrived at EDR: 07/08/2020 Date Made Active in Reports: 09/24/2020 Number of Days to Update: 78 Source: Department of Public Health & Environment Telephone: 303-392-3350 Last EDR Contact: 09/23/2020 Next Scheduled EDR Contact: 01/11/2021 Data Release Frequency: Quarterly LEAD: Lead Abatement Permit Listing Lead inspection Date of Government Version: 11/07/2019 Date Data Arrived at EDR: 11/14/2019 Date Made Active in Reports: 01/21/2020 Number of Days to Update: 68 Source: Department of Publich Health & Environment Telephone: 303-692-2000 Last EDR Contact: 10/28/2020 Next Scheduled EDR Contact: 02/15/2021 Data Release Frequency: Varies MINES: Permitted Mines Listing This dataset represents permitted mines in the State of Colorado Date of Government Version: 07/11/2020 Date Data Arrived at EDR: 07/13/2020 Date Made Active in Reports: 09/24/2020 Number of Days to Update: 73 Source: Division of Reclamation Mining and safety Telephone: 303-866-3567 Last EDR Contact: 10/09/2020 Next Scheduled EDR Contact: 01/25/2021 Data Release Frequency: Semi-Annually NPDES: Permitted Facility Listing A listing of permitted facilities from the Water Quality Control Division. Date of Government Version: 02/13/2020 Date Data Arrived at EDR: 04/28/2020 Date Made Active in Reports: 07/14/2020 Number of Days to Update: 77 Source: Department of Public Health & Environment Telephone: 303-692-3611 Last EDR Contact: 10/27/2020 Next Scheduled EDR Contact: 02/08/2021 Data Release Frequency: Varies TC6253164.7s Page GR-22 GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING UIC: Underground Injection Control A list of underground injection wells and their locations. Date of Government Version: 04/27/2020 Date Data Arrived at EDR: 04/27/2020 Date Made Active in Reports: 05/01/2020 Number of Days to Update: 4 Source: Oil & Gas Conservation Commission Telephone: 303-894-2100 Last EDR Contact: 11/05/2020 Next Scheduled EDR Contact: 02/22/2021 Data Release Frequency: Varies UMTRA: Uranium Mill Tailings Sites There were nine uranium mill tailings sites in Colorado designated for cleanup under the federal Uranium Mill Tailings Radiation Control Act. These nine sites, know commonly as UMTRA sites, were remediated jointly by the State of Colorado and the U.S. Department of Energy during the late 1980’s and early 1990’s. Mill tailings were removed from 8 of the mill sites and relocated in engineered disposal cells. A disposal cell is designed to encapsulate the material, reduce radon emanation, and prevent the movement of water through the material. At one site, Maybell, CO, the tailings were stabilized in-place at the mill site. After remediation of the tailings was completed, the State and DOE began to investigate the residual impacts to groundwater at the mill sites. The groundwater phase of the UMTRA program is on-going. Date of Government Version: 11/23/2004 Date Data Arrived at EDR: 03/21/2007 Date Made Active in Reports: 05/02/2007 Number of Days to Update: 42 Source: Department of Public Health & Environment Telephone: 970-248-7164 Last EDR Contact: 08/11/2020 Next Scheduled EDR Contact: 11/30/2020 Data Release Frequency: Varies MINES MRDS: Mineral Resources Data System Mineral Resources Data System Date of Government Version: 04/06/2018 Date Data Arrived at EDR: 10/21/2019 Date Made Active in Reports: 10/24/2019 Number of Days to Update: 3 Source: USGS Telephone: 703-648-6533 Last EDR Contact: 08/28/2020 Next Scheduled EDR Contact: 12/07/2020 Data Release Frequency: Varies PCS ENF: Enforcement data No description is available for this data Date of Government Version: 12/31/2014 Date Data Arrived at EDR: 02/05/2015 Date Made Active in Reports: 03/06/2015 Number of Days to Update: 29 Source: EPA Telephone: 202-564-2497 Last EDR Contact: 10/02/2020 Next Scheduled EDR Contact: 01/18/2021 Data Release Frequency: Varies PCS INACTIVE: Listing of Inactive PCS Permits An inactive permit is a facility that has shut down or is no longer discharging. Date of Government Version: 11/05/2014 Date Data Arrived at EDR: 01/06/2015 Date Made Active in Reports: 05/06/2015 Number of Days to Update: 120 Source: EPA Telephone: 202-564-2496 Last EDR Contact: 10/02/2020 Next Scheduled EDR Contact: 01/18/2021 Data Release Frequency: Semi-Annually PCS: Permit Compliance System PCS is a computerized management information system that contains data on National Pollutant Discharge Elimination System (NPDES) permit holding facilities. PCS tracks the permit, compliance, and enforcement status of NPDES facilities. Date of Government Version: 07/14/2011 Date Data Arrived at EDR: 08/05/2011 Date Made Active in Reports: 09/29/2011 Number of Days to Update: 55 Source: EPA, Office of Water Telephone: 202-564-2496 Last EDR Contact: 10/02/2020 Next Scheduled EDR Contact: 01/18/2021 Data Release Frequency: Semi-Annually TC6253164.7s Page GR-23 GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING EDR HIGH RISK HISTORICAL RECORDS EDR Exclusive Records EDR MGP: EDR Proprietary Manufactured Gas Plants The EDR Proprietary Manufactured Gas Plant Database includes records of coal gas plants (manufactured gas plants) compiled by EDR’s researchers. Manufactured gas sites were used in the United States from the 1800’s to 1950’s to produce a gas that could be distributed and used as fuel. These plants used whale oil, rosin, coal, or a mixture of coal, oil, and water that also produced a significant amount of waste. Many of the byproducts of the gas production, such as coal tar (oily waste containing volatile and non-volatile chemicals), sludges, oils and other compounds are potentially hazardous to human health and the environment. The byproduct from this process was frequently disposed of directly at the plant site and can remain or spread slowly, serving as a continuous source of soil and groundwater contamination. Date of Government Version: N/A Date Data Arrived at EDR: N/A Date Made Active in Reports: N/A Number of Days to Update: N/A Source: EDR, Inc. Telephone: N/A Last EDR Contact: N/A Next Scheduled EDR Contact: N/A Data Release Frequency: No Update Planned EDR Hist Auto: EDR Exclusive Historical Auto Stations EDR has searched selected national collections of business directories and has collected listings of potential gas station/filling station/service station sites that were available to EDR researchers. EDR’s review was limited to those categories of sources that might, in EDR’s opinion, include gas station/filling station/service station establishments. The categories reviewed included, but were not limited to gas, gas station, gasoline station, filling station, auto, automobile repair, auto service station, service station, etc. This database falls within a category of information EDR classifies as "High Risk Historical Records", or HRHR. EDR’s HRHR effort presents unique and sometimes proprietary data about past sites and operations that typically create environmental concerns, but may not show up in current government records searches. Date of Government Version: N/A Date Data Arrived at EDR: N/A Date Made Active in Reports: N/A Number of Days to Update: N/A Source: EDR, Inc. Telephone: N/A Last EDR Contact: N/A Next Scheduled EDR Contact: N/A Data Release Frequency: Varies EDR Hist Cleaner: EDR Exclusive Historical Cleaners EDR has searched selected national collections of business directories and has collected listings of potential dry cleaner sites that were available to EDR researchers. EDR’s review was limited to those categories of sources that might, in EDR’s opinion, include dry cleaning establishments. The categories reviewed included, but were not limited to dry cleaners, cleaners, laundry, laundromat, cleaning/laundry, wash & dry etc. This database falls within a category of information EDR classifies as "High Risk Historical Records", or HRHR. EDR’s HRHR effort presents unique and sometimes proprietary data about past sites and operations that typically create environmental concerns, but may not show up in current government records searches. Date of Government Version: N/A Date Data Arrived at EDR: N/A Date Made Active in Reports: N/A Number of Days to Update: N/A Source: EDR, Inc. Telephone: N/A Last EDR Contact: N/A Next Scheduled EDR Contact: N/A Data Release Frequency: Varies EDR RECOVERED GOVERNMENT ARCHIVES Exclusive Recovered Govt. Archives RGA LF: Recovered Government Archive Solid Waste Facilities List The EDR Recovered Government Archive Landfill database provides a list of landfills derived from historical databases and includes many records that no longer appear in current government lists. Compiled from Records formerly available from the Department of Public Health & Environment in Colorado. TC6253164.7s Page GR-24 GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING Date of Government Version: N/A Date Data Arrived at EDR: 07/01/2013 Date Made Active in Reports: 01/15/2014 Number of Days to Update: 198 Source: Department of Public Health & Environment Telephone: N/A Last EDR Contact: 06/01/2012 Next Scheduled EDR Contact: N/A Data Release Frequency: Varies RGA LUST: Recovered Government Archive Leaking Underground Storage Tank The EDR Recovered Government Archive Leaking Underground Storage Tank database provides a list of LUST incidents derived from historical databases and includes many records that no longer appear in current government lists. Compiled from Records formerly available from the Department of Labor and Employment, Oil Inspection Section in Colorado. Date of Government Version: N/A Date Data Arrived at EDR: 07/01/2013 Date Made Active in Reports: 01/02/2014 Number of Days to Update: 185 Source: Department of Labor and Employment, Oil Inspection Section Telephone: N/A Last EDR Contact: 06/01/2012 Next Scheduled EDR Contact: N/A Data Release Frequency: Varies COUNTY RECORDS ADAMS COUNTY: LF ADAMS: Summary Report on Methane Gas Hazards and Surveys Conducted on Domestic and Demolition Landfills in Adams County As of May 8, 1978, all known landfills or dumping sites in the Adams County area have been surveyed. Date of Government Version: 05/08/1978 Date Data Arrived at EDR: 02/16/1995 Date Made Active in Reports: 04/04/1995 Number of Days to Update: 47 Source: Tri-County Health Department Telephone: 303-761-1340 Last EDR Contact: 01/27/1995 Next Scheduled EDR Contact: N/A Data Release Frequency: No Update Planned ARAPAHOE COUNTY: LF ARAPAHOE: A Survey of Landfills in Arapahoe County A survey of Arapahoe County was conducted from August through November, 1977, of all open and closed landfills and dumpsites in the county. Each of the sites found was classified as domestic or demolition. Date of Government Version: 12/31/1978 Date Data Arrived at EDR: 02/16/1995 Date Made Active in Reports: 04/04/1995 Number of Days to Update: 47 Source: Tri-County Health Department Telephone: 303-761-1340 Last EDR Contact: 01/27/1995 Next Scheduled EDR Contact: N/A Data Release Frequency: No Update Planned BOULDER COUNTY: LF BOULDER: Old Landfill Sites Landfill sites in Boulder county. Date of Government Version: 05/01/1986 Date Data Arrived at EDR: 11/14/1995 Date Made Active in Reports: 12/07/1995 Number of Days to Update: 23 Source: Boulder County Health Department Telephone: 303-441-1182 Last EDR Contact: 01/30/1998 Next Scheduled EDR Contact: N/A Data Release Frequency: No Update Planned DENVER COUNTY: TC6253164.7s Page GR-25 GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING LF DENVER: Landfills in Denver County Landfill sites in the city and county of Denver. Date of Government Version: 06/23/2017 Date Data Arrived at EDR: 06/23/2017 Date Made Active in Reports: 09/06/2017 Number of Days to Update: 75 Source: City and County of Denver Telephone: 720-913-4839 Last EDR Contact: 09/18/2020 Next Scheduled EDR Contact: 12/28/2020 Data Release Frequency: No Update Planned LF DENVER CO METHANE: Investigation of Methane Gas Hazards The purpose of this study was to assess the actual and potential generation, migration, explosive and related problem associated with specified old landfills, and to identify existing and potential problems, suggested strategies to prevent, abate, and control such problems and recommend investigative and monitoring functions as may be deemed necessary. Eight sites determined to be priorities due to population density and potential hazards to population and property were selected by the Colorado Department of Health. Date of Government Version: 01/01/1981 Date Data Arrived at EDR: 01/29/2013 Date Made Active in Reports: 03/08/2013 Number of Days to Update: 38 Source: City and County of Denver Department of Environmental Health Telephone: 720-865-5522 Last EDR Contact: 01/15/2013 Next Scheduled EDR Contact: N/A Data Release Frequency: No Update Planned DOUGLAS COUNTY: LF DOUGLAS: Douglas County Landfill Key Landfill sites in Douglas county. Date of Government Version: 06/12/1991 Date Data Arrived at EDR: 02/16/1995 Date Made Active in Reports: 04/04/1995 Number of Days to Update: 47 Source: Tri-County Health Department Telephone: 303-761-1340 Last EDR Contact: 01/27/1995 Next Scheduled EDR Contact: N/A Data Release Frequency: No Update Planned PUEBLO COUNTY: LF PUEBLO: Designated Disposal & Landfill Sites Only inert materials. Asphalt, cement, dirt & rock unless otherwise specified. These sites are no longer active. Date of Government Version: 04/30/1990 Date Data Arrived at EDR: 11/16/1995 Date Made Active in Reports: 12/07/1995 Number of Days to Update: 21 Source: Pueblo City-County Health Department Telephone: 719-583-4300 Last EDR Contact: 11/13/1995 Next Scheduled EDR Contact: N/A Data Release Frequency: No Update Planned TRI COUNTY: LF TRI: Tri-County Area Solid Waste Facilities List (Adams, Arapahoe and Douglas Counties) Closed Domestic Landfills in Adams County, Closed Domestic Landfills in Arapahoe County, Closed Demolition Landfills in Arapahoe County, Closed Domestic Landfills in Douglas County. Date of Government Version: 10/15/1983 Date Data Arrived at EDR: 02/16/1995 Date Made Active in Reports: 04/04/1995 Number of Days to Update: 47 Source: Tri-County Health Department Telephone: 303-761-1340 Last EDR Contact: 01/27/1995 Next Scheduled EDR Contact: N/A Data Release Frequency: No Update Planned WELD COUNTY: TC6253164.7s Page GR-26 GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING LF WELD: Solid Waste Facilities in Weld County Solid Waste Facilities in Weld County. Date of Government Version: 01/16/2018 Date Data Arrived at EDR: 02/09/2018 Date Made Active in Reports: 02/23/2018 Number of Days to Update: 14 Source: Weld County Department of Public Health Telephone: 970-304-6415 Last EDR Contact: 08/06/2020 Next Scheduled EDR Contact: 11/16/2020 Data Release Frequency: No Update Planned OTHER DATABASE(S) Depending on the geographic area covered by this report, the data provided in these specialty databases may or may not be complete. For example, the existence of wetlands information data in a specific report does not mean that all wetlands in the area covered by the report are included. Moreover, the absence of any reported wetlands information does not necessarily mean that wetlands do not exist in the area covered by the report. CT MANIFEST: Hazardous Waste Manifest Data Facility and manifest data. Manifest is a document that lists and tracks hazardous waste from the generator through transporters to a tsd facility. Date of Government Version: 08/10/2020 Date Data Arrived at EDR: 10/20/2020 Date Made Active in Reports: 11/02/2020 Number of Days to Update: 13 Source: Department of Energy & Environmental Protection Telephone: 860-424-3375 Last EDR Contact: 10/20/2020 Next Scheduled EDR Contact: 11/23/2020 Data Release Frequency: No Update Planned NY MANIFEST: Facility and Manifest Data Manifest is a document that lists and tracks hazardous waste from the generator through transporters to a TSD facility. Date of Government Version: 01/01/2019 Date Data Arrived at EDR: 04/29/2020 Date Made Active in Reports: 07/10/2020 Number of Days to Update: 72 Source: Department of Environmental Conservation Telephone: 518-402-8651 Last EDR Contact: 10/30/2020 Next Scheduled EDR Contact: 02/08/2021 Data Release Frequency: Quarterly PA MANIFEST: Manifest Information Hazardous waste manifest information. Date of Government Version: 06/30/2018 Date Data Arrived at EDR: 07/19/2019 Date Made Active in Reports: 09/10/2019 Number of Days to Update: 53 Source: Department of Environmental Protection Telephone: 717-783-8990 Last EDR Contact: 10/07/2020 Next Scheduled EDR Contact: 01/25/2021 Data Release Frequency: Annually WI MANIFEST: Manifest Information Hazardous waste manifest information. Date of Government Version: 05/31/2018 Date Data Arrived at EDR: 06/19/2019 Date Made Active in Reports: 09/03/2019 Number of Days to Update: 76 Source: Department of Natural Resources Telephone: N/A Last EDR Contact: 09/02/2020 Next Scheduled EDR Contact: 12/21/2020 Data Release Frequency: Annually Oil/Gas Pipelines Source: Endeavor Business Media Petroleum Bundle (Crude Oil, Refined Products, Petrochemicals, Gas Liquids (LPG/NGL), and Specialty Gases (Miscellaneous)) N = Natural Gas Bundle (Natural Gas, Gas Liquids (LPG/NGL), and Specialty Gases (Miscellaneous)). This map includes information copyrighted by Endeavor Business Media. This information is provided on a best effort basis and Endeavor Business Media does not guarantee its accuracy nor warrant its fitness for any particular purpose. Such information has been reprinted with the permission of Endeavor Business Media. Electric Power Transmission Line Data Source: Endeavor Business Media This map includes information copyrighted by Endeavor Business Media. This information is provided on a best effort basis and Endeavor Business Media does not guarantee its accuracy nor warrant its fitness for any particular purpose. Such information has been reprinted with the permission of Endeavor Business Media. TC6253164.7s Page GR-27 GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING Sensitive Receptors: There are individuals deemed sensitive receptors due to their fragile immune systems and special sensitivity to environmental discharges. These sensitive receptors typically include the elderly, the sick, and children. While the location of all sensitive receptors cannot be determined, EDR indicates those buildings and facilities - schools, daycares, hospitals, medical centers, and nursing homes - where individuals who are sensitive receptors are likely to be located. AHA Hospitals: Source: American Hospital Association, Inc. Telephone: 312-280-5991 The database includes a listing of hospitals based on the American Hospital Association’s annual survey of hospitals. Medical Centers: Provider of Services Listing Source: Centers for Medicare & Medicaid Services Telephone: 410-786-3000 A listing of hospitals with Medicare provider number, produced by Centers of Medicare & Medicaid Services, a federal agency within the U.S. Department of Health and Human Services. Nursing Homes Source: National Institutes of Health Telephone: 301-594-6248 Information on Medicare and Medicaid certified nursing homes in the United States. Public Schools Source: National Center for Education Statistics Telephone: 202-502-7300 The National Center for Education Statistics’ primary database on elementary and secondary public education in the United States. It is a comprehensive, annual, national statistical database of all public elementary and secondary schools and school districts, which contains data that are comparable across all states. Private Schools Source: National Center for Education Statistics Telephone: 202-502-7300 The National Center for Education Statistics’ primary database on private school locations in the United States. Daycare Centers: Daycare Listing Source: Department of Human Services Telephone: 303-866-5958 Flood Zone Data: This data was obtained from the Federal Emergency Management Agency (FEMA). It depicts 100-year and 500-year flood zones as defined by FEMA. It includes the National Flood Hazard Layer (NFHL) which incorporates Flood Insurance Rate Map (FIRM) data and Q3 data from FEMA in areas not covered by NFHL. Source: FEMA Telephone: 877-336-2627 Date of Government Version: 2003, 2015 NWI: National Wetlands Inventory. This data, available in select counties across the country, was obtained by EDR in 2002, 2005 and 2010 from the U.S. Fish and Wildlife Service. State Wetlands Data: Riparian Vegetation Data Source: Division of Wildlife Telephone: 970-416-3360 STREET AND ADDRESS INFORMATION © 2015 TomTom North America, Inc. All rights reserved. This material is proprietary and the subject of copyright protection and other intellectual property rights owned by or licensed to Tele Atlas North America, Inc. The use of this material is subject to the terms of a license agreement. You will be held liable for any unauthorized copying or disclosure of this material. TC6253164.7s Page GR-28 GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING Appendix C. Aerial Photo Decade Package The EDR Aerial Photo Decade Package Garfield Davis Stephen S Christina Garfield Davis Stephen S Christina Silt, CO 81652 Inquiry Number: November 11, 2020 6253164.6 6 Armstrong Road, 4th floor Shelton, CT 06484 Toll Free: 800.352.0050 www.edrnet.com Garfield Davis Stephen S Christina November 11, 2020 Target Property: Silt, CO 81652 Date EDR Searched Historical Sources: Aerial Photography ScaleYear Details Source 1955 Aerial Photograph. Scale:1"=500"Flight Year: 1955 USGS 1960 Aerial Photograph. Scale:1"=500"Flight Year: 1960 USGS 1979 Aerial Photograph. Scale:1"=500"Flight Year: 1979 USGS 1982 Aerial Photograph. Scale:1"=500"Flight Year: 1982 USDA 1993 Aerial Photograph. Scale:1"=500"Flight Year: 1993 USGS/DOQQ 2009 Aerial Photograph. Scale:1"=500"Flight Year: 2009 USDA/NAIP 2013 Aerial Photograph. Scale:1"=500"Flight Year: 2013 USDA/NAIP 2019 Aerial Photograph. Scale:1"=500"Flight Year: 2019 USDA/NAIP 6253164.6 2