2 Colo. Code Regs. § 404-1-801
Current through Register Vol. 47, No. 19, October 10, 2024
Section 2 CCR 404-1-801 - CLASS II UNDERGROUND INJECTION CONTROL WELLSa. A Class II Underground Injection Control Well ("Class II UIC Well") will not be authorized if the proposed Well or operations will result in the presence of any physical, chemical, biological, or radiological substance or matter in an Underground Source of Drinking Water that may adversely affect the health of persons or cause a violation of any of the U.S. Environmental Protection Agency's National Primary Drinking Water Regulations, 40 C.F.R. § 141. Only the version of 40 C.F.R. § 141 in effect as of January 15, 2021 applies to this Rule; later amendments do not apply. 40 C.F.R. § 141 is available for public inspection during normal business hours from the Public Room Administrator at the office of the Commission, 1120 Lincoln Street, Suite 801, Denver, Colorado 80203, and at the U.S. Environmental Protection Agency, Region 8, 1595 Wynkoop St, Denver, CO 80202, and is available online at https://www.epa.gov/sites/production/files/2015-11/documents/howepargulates_cfr-2003-title40-vol20-part141_0.pdf.b. A Class II UIC Well will not be authorized if the proposed Well or operations will result in the presence of any physical, chemical, biological, or radiological substance or matter that will cause a violation of any applicable domestic or agricultural use standards as adopted in 5 C.C.R. § 1002-41 ("WQCC Regulation 41") or 5 C.C.R. § 1002-42 ("WQCC Regulation 42"). Only the versions of WQCC Regulations 41 & 42 that are in effect as of January 15, 2021 apply to this rule; later amendments do not apply. WQCC Regulations 41 & 42 are available for public inspection during normal business hours from the Public Room Administrator at the office of the Commission, 1120 Lincoln Street, Suite 801, Denver, Colorado 80203, and at the Colorado Department of Public Health and Environment, 4300 Cherry Creek Drive South, Denver, CO 80246, and are available online at https://www.colorado.gov/pacific/cdphe/water-quality-control-commission-regulations.c. Class II UIC Wells will not be permitted in areas where they would inject into a formation that is separated from any Underground Source of Drinking Water by a Confining Layer with known open faults or fractures that would allow flow between the Injection Zone and Underground Source of Drinking Water within the area of review.d. Injection Zones will not be permitted within 300 feet in a vertical dimension from the top of any Precambrian basement formation.e. An Operator will not inject any Fluids or other contaminants into a UIC Aquifer that meets the definition of an Underground Source of Drinking Water unless EPA has approved a UIC Aquifer exemption as described in Rule 802.e.37 CR 16, August 25, 2014, effective 9/30/201438 CR 01, January 10, 2015, effective 2/14/201538 CR 03, February 10, 2015, effective 3/2/201538 CR 07, April 10, 2015, effective 4/30/201538 CR 16, August 25, 2015, effective 9/14/201539 CR 04, February 25, 2016, effective 3/16/201641 CR 05, March 10, 2018, effective 4/1/201841 CR 06, March 25, 2018, effective 5/1/201841 CR 23, December 10, 2018, effective 12/30/201842 CR 02, January 25, 2019, effective 2/14/201942 CR 17, September 10, 2019, effective 9/30/201942 CR 24, December 25, 2019, effective 1/14/202043 CR 17, September 10, 2020, effective 9/30/202043 CR 13, July 10, 2020, effective 11/2/202043 CR 24, December 25, 2020, effective 1/15/202145 CR 07, April 10, 2022, effective 4/30/202245 CR 09, May 10, 2022, effective 5/30/202245 CR 13, July 10, 2022, effective 7/30/2022