Regulations last checked for updates: Nov 24, 2024

Title 40 - Protection of Environment last revised: Nov 21, 2024
§ 147.2550 - State-administered program—Class I, III, IV, V and VI wells.

The UIC program for Class I, III, IV, and V wells in the State of Wyoming, except those located on Indian lands, is the program administered by Wyoming Department of Environmental Quality, approved by EPA pursuant to the Safe Drinking Water Act (SDWA) section 1422. The effective date of this program is August 17, 1983. The UIC Program for Class VI wells in Wyoming, except those located on Indian lands, is the program administered by Wyoming Department of Environmental Quality, approved by EPA pursuant to the SDWA section 1422. The effective date of this program is October 9, 2020. The UIC program for Class I, III, IV, V, and VI wells in the State of Wyoming, except those located on Indian lands, consists of the following elements, as submitted to the EPA in the State's program application and program revision application.

(a) Incorporation by reference. The requirements set forth in the state statutes and regulations approved by the EPA for inclusion in “EPA-Approved Wyoming SDWA § 1422 Underground Injection Control Program Statutes and Regulations for Well Classes I, III, IV, V and VI,” dated March 31, 2020, and listed in Table 1 to this paragraph (a), are hereby incorporated by reference and made a part of the applicable UIC program under the SDWA for Wyoming. The Director of the Federal Register approves this incorporation by reference in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Copies of the State of Wyoming's regulations that are incorporated by reference may be inspected at the U.S. Environmental Protection Agency, Region 8, 1595 Wynkoop Street, MSC 8WD-SDU, Denver, Colorado 80202 and the Water Docket, EPA Docket Center (EPA/DC) EPA West, Room 3334, 1301 Constitution Ave., NW, Washington, DC 20460. If you wish to obtain materials from the EPA Regional Office, please call (303) 312-7226; for materials from a docket in the EPA Headquarters Library, please call the Water Docket at (202) 566-2426. You may also inspect the materials at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, email [email protected], or go to www.archives.gov/federal-register/cfr/ibr-locations.html.

Table 1 to Paragraph (a)—EPA-Approved Wyoming SDWA § 1422 Underground Injection Control Program Statutes and Regulations for Well Classes I, III, IV, V and VI

State citation Title/subject State
effective
date
EPA approval date 1
Wyoming Statutes sections 35-11-101 through 35-11-115, and 35-11-301 through 35-11-305Wyoming Environmental Quality Act1989March 6, 1991, 56 FR 9421.
Water Quality Rules and Regulations, Wyoming Department of Environmental Quality Chapter III: Regulations for Permit to Construct, Install or Modify Public Facilities Capable or, (sic) Causing or Contributing to PollutionRegulations for Permit to Construct, Install or Modify Public Water Supplies, Wastewater Facilities, Disposal Systems, Biosolids Management Facilities, Treated Wastewater Reuse Systems and Other Facilities Capable of Causing or Contributing to Pollution1983May 11, 1984, 49 FR 20197.
Water Quality Rules and Regulations, Wyoming Department of Environmental Quality, Chapter VIII: Quality Standards for Groundwaters of WyomingQuality Standards for Groundwaters of Wyoming1980May 11, 1984, 49 FR 20197.
Water Quality Rules and Regulations, Wyoming Department of Environmental Quality, Chapter IX: Wyoming Groundwater Pollution Control PermitWyoming Groundwater Pollution Control Permit1980May 11, 1984, 49 FR 20197.
Water Quality Rules and Regulations, Wyoming Department of Environmental Quality, Chapter XIII: Prohibitions of Permits for New Hazardous Waste Injection WellsProhibitions of Permits for New Hazardous Waste Injection Wells1989March 6, 1991, 56 FR 9421.
Land Quality Rules and Regulations, Wyoming Department of Environmental Quality, Chapter XXI: In Situ MiningIn Situ Mining1981May 11, 1984, 49 FR 20197.
Water Quality Rules and Regulations, Wyoming Department of Environmental Quality, Chapter XXIV: Class VI Injection Wells and Facilities Underground and Injection Control ProgramClass VI Injection Wells and Facilities Underground and Injection Control Program2020October 9, 2020, 85 FR 64055

1 In order to determine the EPA effective date for a specific provision listed in this table, consult the Federal Register notice cited in this column for the particular provision.

(b) Other laws. The following statutes and regulations, although not incorporated by reference except for select sections identified in paragraph (a) of this section, are also part of the approved State-administered program:

(1) Article 9, Underground Water, Wyoming Statutes sections 41-3-901 through 41-3-938 (September 1982);

(2) Wyoming Administrative Procedure Act, Wyoming Statutes sections 9-4-101 through 9-4-115 (1988);

(3) Department of Environmental Quality Rules of Practice and Procedure (1982).

(c)(1) The Memorandum of Agreement between EPA, Region VIII and the Wyoming Department of Environmental Quality, signed by the EPA Regional Administrator on April 26, 1983.

(2) Letter from Regional Administrator, EPA Region VIII, to Governor of Wyoming, May 21, 1982, with Attachment (regarding aquifer exemptions);

(3) Letter from Governor of Wyoming to Regional Administrator, EPA Region VIII, “Re: Underground Injection Control (UIC) Program—Aquifer Exemption Issues,” June 7, 1982;

(4) Letter from Regional Administrator, EPA Region VIII to Governor of Wyoming, “Re: Underground Injection Control (UIC) Program—Aquifer Exemption Issues,” June 25, 1982;

(5) Letter from Director, Wyoming Department of Environmental Quality, to Acting Director, Water Management Division, EPA Region VIII, December 1, 1982.

(6) Memorandum of Agreement addendum between EPA, Region VIII, and Wyoming Department of Environmental Quality, signed by the EPA Regional Administrator on March 20, 2020.

(7) Letter from Governor of Wyoming to Regional Administrator, EPA Region VIII, “Re: UIC Program Class VI Application,” January 23, 2020.

(d) Statement of legal authority. (1) “Attorney General's Statement—Wyoming Statutory and Regulatory Authority for Assumption of the Underground Injection Control Program Pursuant to the Federal Safe Drinking Water Act,” signed by Attorney General and Assistant Attorney General for the State of Wyoming, September 22, 1982;

(2) Letter from Attorney General for the State of Wyoming to Acting Regional Counsel, EPA Region VIII, “Re: Wyoming Assumption of the UIC Program—$36, Chapter IX, Wyoming Water Quality Rules and Regulations,” November 24, 1982.

(3) “Attorney General's Statement—“Attorney General's Statement to Accompany Wyoming's Underground Injection Control Program Class VI Primacy Application,” signed by Attorney General and Assistant Attorney General for the State of Wyoming, January 9, 2020.

(4) Letter from the Attorney General for the State of Wyoming to Regional Counsel, EPA Region VIII, “Re: Wyoming Underground Injection Control Program Class VI Regulations,” October 25, 2019.

(e) The Program Description and any other materials submitted as part of the application or amendment thereto, and the Program Description and any other materials submitted as part of the revision application or amendment thereto.

(e) The Program Description and any other materials submitted as part of the application or amendment thereto.

[49 FR 20197, May 11, 1984, as amended at 53 FR 43092, Oct. 25, 1988; 56 FR 9421, Mar. 6, 1991]
§ 147.2551 - State-administered program—Class II wells.

The UIC program for Class II wells in the State of Wyoming, except those on Indian lands, is the program administered by the Wyoming Oil and Gas Conservation Commission approved by EPA pursuant to section 1425 of the SDWA. Notice of this approval was published in the FR on November 23, 1982 (47 FR 52434); the effective date of this program is December 23, 1982. This program consists of the following elements as submitted to EPA in the State's program application:

(a) Incorporation by reference. The requirements set forth in the State statutes and regulations cited in this paragraph are hereby incorporated by reference and made a part of the applicable UIC program under the SDWA for the State of Wyoming. This incorporation by reference was approved by the Director of the OFR in accordance with 5 U.S.C. 552(a) and 1 CFR Part 51. Copies may be obtained at the Wyoming Oil and Gas Conservation Commission, Office of the State Oil and Gas Supervisor, P.O. Box 2640, 77 West First Street, Casper, Wyoming, 82602. Copies may be inspected at the Environmental Protection Agency, Region VIII, 999 18th Street, Suite 500, Denver, Colorado, 80202-2405, or at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202-741-6030, or go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.

(1) Rules and Regulations of the Wyoming Oil and Gas Conservation Commission, including Rules of Practice and Procedure, as published by the Wyoming Oil and Gas Conservation Commission, August 7, 1990;

(2) Title 30, Chapter 5, Wyoming Statutes, sections 30-5-101 through 30-5-126 (June 1983 and Wyoming Statutes Annotated, July 1990 Supp.).

(b) Memorandum of Agreement. (1) The initial Memorandum of Agreement between EPA, Region VIII and Wyoming Oil and Gas Conservation Commission, signed by the EPA Regional Administrator and the Oil Field Supervisor of the Commission on June 2, 1982;

(2) Amendment No. 1 to the Memorandum of Agreement, dated December 22, 1982;

(3) Amendment No. 2 to the Memorandum of Agreement, dated January 25, 1990;

(4) Letter from State Oil and Gas Supervisor, Wyoming Oil and Gas Conservation Commission, to the Acting Director, Water Management Division, EPA Region VIII, “Re: Application for Primacy in the Regulation of Class II Injection Wells,” March 8, 1982;

(5) Letter from State Oil and Gas Supervisor, Wyoming Oil and Gas Conservation Commission, to EPA Region VIII, “Re: Regulation of Liquid Hydrocarbon Storage Wells Under the UIC Program,” July 1, 1982;

(6) Memorandum of Agreement Between the Wyoming State Board of Control, State Engineer, Oil and Gas Conservation Commission, and the Department of Environmental Quality, dated October 14, 1981.

(c) Statement of legal authority. (1) “Statement of Legal Authority” and “State Review of Regulations and Statutes Relevant to the UIC Program-Class II Wells,” signed by Special Assistant Attorney General for the State of Wyoming, as submitted with “Wyoming Oil and Gas Conservation Commission, Application for Primacy in the Regulation of Class II Injection Wells under Section 1425 of the Safe Drinking Water Act,” November 1981;

(2) Letter from special Assistant Attorney General for the State of Wyoming to Assistant Regional Counsel, EPA Region VIII, May 13, 1982;

(3) Letter from special Assistant Attorney General for the State of Wyoming to Assistant Regional Counsel, EPA Region VIII, July 1, 1982.

(d) Program Description. The Program Description and other material submitted as part of the application or amendments thereto, including the memorandum to the National UIC Branch reporting on Improvement to the Wyoming Oil and Gas 1425 program, dated April 28, 1989.

[56 FR 9421, Mar. 6, 1991]
§ 147.2553 - EPA-administered program—Indian lands.

(a) Contents. The UIC program for all classes of wells on Indian lands in the State of Wyoming is administered by EPA. This program consists of the UIC program requirements of 40 CFR parts 124, 144, 146, 148, and any additional requirements set forth in the remainder of this subpart. Injection well owners and operators, and EPA shall comply with these requirements.

(b) Effective date. The effective date for the UIC program on Indian lands in Wyoming is November 25, 1988.

[53 FR 43092, Oct. 25, 1988, as amended at 56 FR 9422, Mar. 6, 1991]
§ 147.2554 - Aquifer exemptions.

In accordance with §§ 144.7(b) and 146.4 of this chapter, those portions of aquifers currently being used for injection in connection with Class II (oil and gas) injection operations on the Wind River Reservation, which are described below, are hereby exempted for the purpose of Class II injection activity. This exemption applies only to the aquifers tabulated below, and includes those portions of the aquifers defined on the surface by an outer boundary of those quarter-quarter sections dissected by a line drawn parallel to, but one-quarter mile outside, the field boundary, and is restricted to extend no further than one-quarter mile outside the Reservation boundary. Maps showing the exact boundaries of the field may be consulted at the EPA's Region 8 Office, and at the EPA Headquarters in Washington, DC.

Areas To Be Exempted for the Purpose of Class II Injection on the Wind River Reservation

Formation Approximate depth Location
Steamboat Butte Field
Phosphoria6,500-7,100T3N, R1W—W/2 Sec. 4, Sec. 5, E/2 Sec. 6, NE/4 Sec. 8, W/2 Sec. 9.
T4N, R1W—W/2 Sec. 29, E/2 Sec. 30, E/2 Sec. 31, Sec. 32.
Tensleep6,900-7,500T3N, R1W—W/2 Sec. 4, Sec. 5, E/2 Sec. 6, NE/4 Sec. 8, W/2 Sec. 9.
T4N, R1W—W/2 Sec. 29, E/2 Sec. 30, E/2 Sec. 31, Sec. 32.
Winkleman Dome Field
Tensleep2,800-3,300T2N, R1W—SW/4 Sec. 17, Sections 18, 19, 20, 29, NE/4 Sec. 30.
T2N, R2W—E/2 Sec. 13, NE/4 Sec. 24.
Phosphoria2,800-3,600T2N, R1W—SW/4 Sec. 17, Sections 18, 19, 20, 29, NE/4 Sec. 30.
T2N, R2W—E/2 Sec. 13, NE/4 Sec. 24.
Nugget1,100-1,500T2N, R1W—SW/4 Sec. 17, Sections 18, 19, 20, 29, NE/4 Sec. 30.
T2N, R2W—E/2 Sec. 13, NE/4 Sec. 24.
Lander Field
Phosphoria1,100-3,800T2S, R1E—Sections 12 and 13, E/2 Sec. 24, NE/4 Sec. 25.
T2S, R2E—W/2 Sec. 18, W/2 Sec. 19, Sec. 30.
T33N, R99W—Sec. 4.
NW Sheldon Field
Crow Mountain and Cloverly3,400-3,600T6N, R3W—SE/4 Sec. 35, SW/4 Sec. 36.
T5N, R3W—N/2 Sec. 1.
Circle Ridge Field
Tensleep1,500-1,800T6N, R2W—Sec. 6, N/2 Sec. 7.
T7N, R3W—SE/4 Sec. 36.
T7N, R2W—SW/4 Sec. 31.
T6N, R3W—E/2 Sec. 1.
Phosphoria800-1,800T7N, R3W—S/2 Sec. 36.
T6N, R3W—NE/4 Sec. 1.
Amsden700-l,200T6N, R3W—Sec. 6.
Rolff Lake Field
Crow Mountain3,500-3,700T6N, R3W—SW/4 Sec. 26, NW/4 Sec. 27.
[53 FR 43092, Oct. 25, 1988]
§ 147.2555 - Aquifer exemptions since January 1, 1999.

In accordance with § 144.7(b) and § 146.4 of this chapter, the aquifers described in the following table are hereby exempted from the definition of an underground source of drinking water, as defined in 40 CFR 144.3:

Aquifer Exemptions Since January 1, 1999

Formation Approximate depth (feet below
ground surface)
Location
Powder River Basin, only approximately 0.4 square miles of the Lance Formation which is less than 0.005% of the Basin at indicated depths and location.3,800-6,800Two cylindrical volumes with centers in the wells COGEMA DW No. 1 and 18-3 Christensen respectively, and radius of 1,320 feet. Both wells are located in the Christensen Ranch, in Johnson County, WY. The COGEMA DW No. 1 well is located at approximately 450 feet West of N/S line and 100 feet North of E/W line of SE/4, NW/4, Section 7, T44N, R76W. The 18-3 Christensen well is located approximately 600 feet West of N/S line and 550 South of E/W line of NE/4, NW/4, Section 18, T44N, R76W.
Lance Formation at indicated depths and locations3,800-6,500Two cylindrical volumes with centers in the wells COGEMA DW No. 2 and COGEMA DW No. 3 respectively, and radius of 1320 feet. Both wells are located in the Christensen Ranch, in Johnson County WY. The COGEMA DW No. 2 is located at approximately 2,290 feet from the North line and 1130 feet from the East line SW1/4 SE1/4 NE1/4 of Section 7, Township 44 North, Range 76 West. The COGEMA DW No. 3 is located approximately 3300 feet from the North line and 1340 feet from the West line center of SW1/4 of Section 5, Township 44 North, Range 76 West.
[64 FR 14803, Mar. 26, 1999, as amended at 67 FR 47726, July 22, 2002]
authority: 42 U.S.C. 300f
source: 49 FR 20197, May 11, 1984, unless otherwise noted.
cite as: 40 CFR 147.2550