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Underground Injection Control (UIC)

Underground Injection Control in EPA Region 8 (CO, MT, ND, SD, UT, and WY)

EPA Region 8 serves Colorado, Montana, North Dakota, South Dakota, Utah, Wyoming, and 27 tribal nations.

On this page:

Announcements and Public Notice of Proposed Actions

EPA Region 8 solicits public comment on issuance of permit-related actions under the authority of the Safe Drinking Water Act and UIC Program regulations for a minimum of 30 calendar days on this website and publishes a courtesy announcement in one or more local newspapers.

All comments received by the end of the comment period will be considered in the formulation of any final decision. Notification and any details of a public comment period extension will be provided at the web links below and will not be published in local newspapers. Interested parties on our email list will be notified of any extension of the public comment period by email.

If you wish to be added to our email list, please notify the EPA staff listed for the proposed action. If no comments are received by the comment deadline, the Director intends to issue a Final UIC Permit, Permit Modification and/or Aquifer Exemption. EPA will hold a public hearing if the response to a specific action indicates significant public interest, or if requested.

For additional information on a specific action, please contact the EPA staff listed for that proposed action.

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Regional Guidance Documents


Underground Injection Control Reporting Forms for Owners or Operators

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Class V Program Documents

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Primary Enforcement Authority

Well Class Colorado Montana North Dakota South Dakota Utah Wyoming
Class I EPA EPA North Dakota Department of Health EPA Utah Department of Environmental Quality, Division of Water Quality Wyoming Department of Environmental Quality 
Class II Colorado Oil and Gas Conservation Commission Montana Board of Oil and Gas Conservation North Dakota Industrial Commission, Department of Mineral Resources, Oil and Gas Division  South Dakota Department of Environment and Natural Resources Utah Division of Oil, Gas and Mining Wyoming Oil and Gas Conservation Commission
Class III EPA EPA North Dakota Department of Health EPA Utah Department of Environmental Quality, Division of Water Quality Wyoming Department of Environmental Quality
Class IV EPA EPA North Dakota Department of Health EPA Utah Department of Environmental Quality, Division of Water Quality Wyoming Department of Environmental Quality
Class V EPA EPA North Dakota Department of Health EPA Utah Department of Environmental Quality, Division of Water Quality Wyoming Department of Environmental Quality
Class VI EPA EPA North Dakota Industrial Commission, Department of Mineral Resources, Oil and Gas Division  EPA EPA EPA

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Tribal Programs

EPA Region 8 directly implements the UIC Program on 26 Indian Reservations. The Fort Peck Indian Reservation has been delegated primacy for Class II injection wells.

Fort Peck Program Manager Deb Madison (2horses@nemont.net), 406-768-2389

Questions about underground injection wells on Indian Reservations other than Fort Peck should be directed to EPA Region 8.

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Contact Information

U.S. EPA Region 8 (8WP-SUI)
1595 Wynkoop Street
Denver, CO 80202-1129

UIC Permitting Staff

Unit Chief for Permitting Douglas Minter (minter.douglas@epa.gov), 303-312-6079

Permitting Staff Areas of Focus Email Phone

Linda Bowling

Engineer

Aquifer Storage & Recovery (ASR) Team Lead; Class II Permit Writer for the Wind River Indian Reservation; State Oversight for MBOGCC

bowling.linda@epa.gov

303-312-6254

Wendy Cheung

Engineer

UIC Database Design Lead; Class VI Geologic CO2 Sequestration; Aquifer Exemption Team Lead; State Oversight for WDEQ

cheung.wendy@epa.gov

303-312-6242

Craig Boomgaard

Environmental Scientist

Class II Permit Lead for Fort Berthold Indian Reservation; State Oversight for NDIC and WOGCC

boomgaard.craig@epa.gov

303-312-6794

Valois Shea

Environmental Scientist

Class III Permit Lead for South Dakota; UIC Database Administrator; State Oversight for COGCC

shea.valois@epa.gov

303-312-6276

Omar Sierra-Lopez

Environmental Scientist

Class V Team Lead; Class II Permitting; State Oversight for NDDEQ and UDEQ

              sierra-lopez.omar@epa.gov

303-312-7045

Bruce Suchomel

Engineer

Class II Permit Lead for the Uintah and Ouray Indian Reservation; Contracting Officer Representative; State Oversight for UDOGM

suchomel.bruce@epa.gov

303-312-6001

Chuck Tinsley

Engineer

Senior UIC Program Technical and Regulatory Expert; State Oversight for SDDENR

tinsley.chuck@epa.gov

303-312-6266

Rick Arnold

Environmental Scientist

Groundwater Modeling; Hydrogeology; Aquifer Exemptions

arnold.rick@epa.gov

303-312-6788

UIC Enforcement Staff

SDWA Enforcement Unit Supervisor Tiffany Cantor (cantor.tiffany@epa.gov), 303-312-6521

Enforcement Staff Areas of Focus Email Phone
Gary Wang Class I, II, III, and Class V Deep Wells (inspections, compliance and enforcement)

wang.gary@epa.gov

303-312-6469
Britta Copt  Class V Shallow Wells (compliance and enforcement)

copt.britta@epa.gov

303-312-6229
Nathan Wiser Class I, II, III, and Class V Deep Wells (inspections, compliance, enforcement, tips and complaints)

wiser.nathan@epa.gov

303-312-6211
Ben D'Innocenzo Financial Responsibility Coordinator

dinnocenzo.benjamin@epa.gov

303-312-6342

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