OAI-E-0f = $3.59: $7/2/ DRAFT.) | PS WAN U.S. Department of the Interior Pieter ‘Bureau of Land Management Wyoming State Office Buffalo Field Office January 2002 Draft Environmental Impact Statement and Draft Planning Amendment for the Powder River Basin Oil and Gas Project Volume 1 (WY-070-—02-065) it BEST COPY AVAILABLE COMPLETED | waeoere e MISSION STATEMENT EL0aagOLcySefAeOp Oec L Raec E t ,st R TI It is the mission of the Bureau of Land Management to sustain the health, diversity, and productivity of the public lands for the use and enjoyment of present and future generations. i BLM/WY/PL-02/0031+1310 4 ’'; ee sme:f o | United States Department of the Interior BUREAU OF LAND MANAGEMENT Wyoming State Office P.O. Box 1828 Cheyenne, Wyoming 82003-1828 January 2, 2002 Dear Reader: The Burzau of Land Management (BLM) has prepared this Draft Environmental Impact State- ment (DEIS) to document and disclose the results of environmental analysis. A copy of this document has been provided to you for your review. You also may view the DEIS on the Wyo- ming BLM homepage (www.wy.blm.gov) and Powder River Basin EIS web site at http://www.prb-eis.org. Copies of the DEIS also are available for public inspection at the fol- lowing BLM offices: Bureau of Land Management Bureau of Land Management Bureau of Land Management Wyoming State Office Buffalo Field Office Casper Field Office 5353 Yellowstone Road 1425 Fort Street 2987 Prospector Drive Cheyenne, Wyoming 82009 Buffalo, Wyoming 82834 Casper, Wyoming 82604-2968 We recommend that you begin by reading the Preface of the DEIS, which will orient you to the document. As a result of the analysis documented in this DEIS, our preferred alternative, at this time, is Al- ternative 1. We will not; however, make a final decision until we have reviewed comments on the DEIS and completed the FEIS. Public comments on this DEIS will be accepted for 90 days following the date the Environ- mental Protection Agency publishes its Notice of Availability in the Federal Register. The BLM will notify all parties on the project mailing list of the dates when comments will be accepted. During this time, you are welcome to submit written comments. During the comment period, the BLM will hold public meetings (anticipated during March 2002) or other public involvement activities. The BLM will notify the public of these meetings or ac- tivities through public notices, news media releases, the Wyoming BLM homepage (www.wy.blm.gov), the project’s homepage (www.prb-eis.org), or mailings. These notifications will provide at least 15-days’ notice of public meetings or gatherings and etal notice of written comment requests. é ae ARRB E The agencies are required to respond in the Final Environmental! Impact Statement (FEIS) to all substantive comments submitted on the DEIS. The comment period mentioned above provides you, the public, with an opportunity to make an impact on the content of the document and; therefore, potentially affect the decision that will be made after the FEIS is released. We ask that your comments relate directly to the DEIS, that you are as specific as possible, and that you cite the location or locations in the document on which you are commenting. Although public opin- ions for or against the alternatives are of interest, often they are not useful for modifying an EIS. Additionally, they seldom have any bearing on the criteria the agencies must use to make deci- Sions regarding proposals. Substantive comments should: (1) give any new information that could alter conclusions; (2) show why or how analysis or assumptions are flawed; (3) show er- rors in data, sources, or methods; or (4) request assessment clarifications that bear on conclu- sions. Please retain this copy of the DEIS for future reference because the FEIS may be published in abbreviated format. If you have any questions or require additional copies of this document, please contact Paul Beels 307-684-1168. We appreciate your interest in the management of the public lands. Comments on the DEIS should be sent to Paul Beels, Project Manager, Bureau Land manage- ment Buffalo Field Office, 1425 Fort Street, Buffalo, Wyoming 82834-2436. Sincerely, hill Alan R: Pierson State Director Draft Environmental impact Statement Powder River Basin Oil and Gas Project Campbell, Converse, Johnson, and Sheridan Counties Lead Agency: Bureau of Land Management Buffalo Field Office Buffalo, Wyoming Cooperating Agencies: Bureau of Land Management Casper Field Office Casper, Wyoming USDA Forest Service Medicine Bow-Routt National Forest Douglas, Wyoming State of Wyoming For Further Information, Contact: Paul Beels Bureau of Land Management 1425 Fort Street Buffalo, Wyoming 82834-2436 (307) 684-1168 Abstract A group of oil and gas companies (Companies) has notified the Bureau of Land Management and Forest Service of their intent to develop additional coal bed methane (CBM) resources in Wyoming’s Powder River Basin. The Proposed Action includes drilling, completing, operating, and reclaiming almost 39,400 new CBM wells and constructing, operating, and reclaiming various ancillary facilities needed to support the new wells. The Proposed Action would occur in an almost 8,000,000-acre Project Area. Drilling would begin in 2002 and continue for 10 years. Three alternatives were considered in detail. They were Alternative 1 — the Proposed Action, Alternative 2 — the Proposed Action with Reduced Emission Levels and Expanded Disposed Water Handling Sce- nario, and Alternative 3 — No Action. Alternative 1 consisted of a combination of the Companies’ pro- posal and the BLM’s Reasonable Foreseeable Development Scenario. Alternative 2 was developed in re- sponse to issues raised during the public and agency scoping process. This alternative, which consists of Alternative 2A and 2B, would replace some of the proposed gas-fired compressors with electrical com- pressors and would involve less water discharged directly to the sub-watersheds. The No Action alterna- tive is required by the National Environmental Policy Act for comparison to other alternatives analyzed in the EIS. For this project, the No Action Alternative would not authorize additional natural gas develop- ment on Federal leases within the Project Area. Drilling could continue on State and private leases, The Wyoming State Director is the BLM’s Authorized Officer responsible for preparing this Draft Envi- ronmental Impact Statement. .j |e ee BLANK PAGE maicles n Environmental Impact Statement (EIS) usually is not read like a book — from chapter one to the end. The best way to read an EIS depends on your interests. You may be more interested in effects, whereas others might have more interest in the details of the proposed project or be more concerned about what opportunities were made available to the public to be involved in the environ- mental assessment process. Many readers probably just want to know what is being proposed and how it will affect them. This document follows the format established in the National Environmental Pol- icy Act’s regulations (40 CFR 1500 to 1508). The following paragraphs outline information contained in the chapters and appendices so readers may find the OTRIHAIFON~aEA O yRM N REE UNM AR RESTT S parts of interest without having to read the entire document. > Summary: contains a short, simple discussion to provide the reader and the decision makers with a sketch of the more important aspects of the EIS. The reader can obtain additional, more-detailed information from the actual text of the EIS. >» Chapter 1 — Purpose and Need: identifies the proposed action and de- scribes the purpose of and need for the proposed action, history of oi) and gas activities in the Powder River Basin, decisions to be made by the agencies, agencies’ roles and responsibilities, the National Environ- mental Policy Act (NEPA) process, and other permits required. >» Chapter 2 — Public Participation, Issue Identification, and Alternative Development. describes the Proposed Action, the significant or key is- sues associated with the Proposed Action, and alternatives to that action, including the no action alternative. Action alternatives that meet the pur- pose and need were developed by the agencies in response to one or ze more of the key issues. Alternatives considered but dropped from de- tailed consideration are identified along with the rationale for not includ- ing them in the analysis. This chapter also provides a comparative analy- sis of the environmental effects of the primary alternatives to provide a clear basis of choice among options for the decision maker and public. The lead agency’s preferred alternative is identified. n2e+ n, >» Chapter 3 — Affected Environment: describes the present condition of } the environment that would be affected by implementation of the pro- i posed action or any action alternative. >» Chapter 4 — Environmental Consequences: describes the probable di- rect, indirect, and cumulative effects to the human environment that would result from implementing the Proposed Action or alternatives. The discussion also addresses the short-term uses versus long-term productiv- ity, unavoidable impacts, and irreversible or irretrievable impacts. Reasonably foreseeable activities near the proposed project are identi- fied. Chapter 5 — Land Use Planning and Management: contains the analysis of the alternatives for conformance with the Buffalo Resource Area Re- source Management Plan, Platte River Resource Management Plan, and Medicine Bow National Forest Land and Resource Management Plan. Chapter 6 — Consultation with Others: identifies the agencies, compa- nies, and organizations consulted as well as the cooperating agencies. Chapter 7 — Preparers and Contributors: identifies the people involved in the research, writing, and internal review of the draft EIS. Chapter 8 — Distribution and Review of the Draft EIS: \ists the agencies, organizations, and individuals who received a copy of the draft EIS. Chapter 9 — Glossary: describes the technical terms used in the draft EIS. Chapter 10 — References Cited: lists the references cited in the draft EIS. Index: contains cross references and identifies the pages where key topics can be found. Appendices: contain technical and non-technical information that is im- portant to full comprehension of the NEPA analysis, but was too long to be included in the primary chapters. ee ee ea 7 Preface . Acronyms and Abbreviuasetd iino thnis sEI S ADT AverDaialy gTreaff ic -- APD Applifcora Petrmiit oton Dri ll : AUM Animal Unit Month BACT Best AvaiColntraol bTeclhnoelo gy : bef Billion Cubic Feet BFO BuffFiealdl Ofofi ce BFOA BufFifelda Offliceo Ar ea BLM U.S. Department of Interior, Bureau of Land Management = BMP Best Management Practices CBM CoBead Mletha ne CEQ Council on EnvironmenQtuaalilt y a CFO Casper Field Office ‘ CFOA CasFielpd Oefficre A rea CFR Code of Federal Regulations cfs Cubic Feet per Second CMF Central Metering Facility COA Conditoif Aoppnrosva l COE U.S. Army Corps of Engineers CSU Controlled Surface Use CWA Clean Water Act DEIS Draft EnvironImmpaectn Sttaatemlen t EIS EnvironImmpaectn Sttaatemlen t EPA U.S. Environmental Protection Agency ESA Endangered Species Act FEIS Final EnvironImmpaectn Sttaatemlen t FERC Federal Energy RegulatoAgrenyc y FLPMA Federal Land Policy and ManagemenAtct FS U.S. Department of AgriculFotreust rSeerv,ic e FWS U.S. Departomfe Intnertior , Fish and Wildlife Service gpm Gallpeor nMinsut e HP Horsepower kV Kilovolt LAD Land Application Disposa! LRMP Land and Resource ManagemenPlta n ) mcf Thousand Cubic Feet