Lily BarkauGroundwater Section Manager Cheyenne(307)777-7072
Nicole TwingGround Section Geology Supervisor, UIC, GPC, & Federal Facilities Programs(307)777-8275
John PassehlFederal Facilities Program, Geology Supervisor, Cheyenne(307)777-5623
Tyler HarrisUIC Program, Natural Resources Program Principal, Cheyenne(307)777-5501
Justin ScottUIC Program, Project Geologist, Cheyenne(307)777-7511
Laurel MorrowUIC Program, Project Geologist, Cheyenne(307)777-7608
Curtis CrawfordUIC Program, Natural Resource Analyst, Cheyenne(307)777-6080
Jack LeitnerUIC Program, Natural Resource Analyst, Lander(307)335-6752
Steven LooseGPC & UIC Program, Project Geologist, Lander(307)335-6942
Wylee RizzitelloGPC Program, Natural Resources Program Principal, Cheyenne(307)777-7092
Christy HutchinsonGPC Program, Natural Resources Program Principal, Casper(307)473-3468
VacantGPC Program, Natural Resource Analyst, Cheyenne(307)777-6081
VacantGPC Program, Geology Supervisor, Cheyenne(307)777-2960
Electronic Documents Submittal

Electronic document submittal is available for WQD permit applications, reports, and other communications.
Visit:  WDEQ Water Quality Division Downloads

You do NOT need to follow up the electronic submission with a hard copy submission unless you are specifically contacted by a WQD staff person with a request to do so.

Need to report a spill or complaint? Please visit

Submitting a public comment? WQD is unable to accept public notice comments through this system. Refer to the public notice document for instructions on how to submit comments or visit

NOTICE: All applications for water distribution systems and/or sewage collection systems that are within the Cheyenne Board of Public Utilities (BOPU) district shall be submitted to the BOPU for approval. Contact Frank Strong or Bryce Dorr at (307) 637-6460,, or for additional information.

Forms and Guidance

If the download box is not working below, please click here.

GEM Database

The GEM Database is a tool for permitees, operators, and consultants to report monitoring data to the Underground Injection Control (UIC) Program.  Operators and consultants requesting access to the database for reporting must be approved by a responsible corporate officer of the permitted entity.

Currently the GEM Database is offline. To submit documents please click here:

For inquiries regarding UIC records, please submit a Public Records Request.

Rules and Regulations

All official Wyoming State Rules and Regulations are kept at the Wyoming Secretary of State's Office. Click here to view all current Rules and Regulations. 


Related Programs

Class VI Carbon Capture, Utilization & Storage (CCUS) refers to the process in which carbon is captured from industrial processes and either utilized by turning the carbon into a new product or stored by injecting the carbon into a storage site, usually underground in a geologic formation.

What is a Class VI Well?

A well that is used for injecting a carbon dioxide stream for geologic sequestration that:

  • Is not experimental in nature and injects a carbon dioxide stream for geologic sequestration, beneath the lowermost formation containing an underground source of drinking water;
  • Has granted a waiver for the injection depth requirements pursuant to requirements of Water Quality Rules Chapter 24, Section 15; or
  • Has received an expansion to the areal extent of an existing Class II enhanced oil recovery or enhanced gas recovery aquifer exemption pursuant to Water Quality Rules, Chapter 24, Section 16.

Geologic Sequestration

Wyoming Environmental Quality Act and Industrial Development Information and Siting Act (2020 Edition) 35-11-103:

  • (xx) "Geologic sequestration" means the injection of carbon dioxide and associated constituents into subsurface geologic formations intended to prevent its release into the atmosphere;
  • (xxi) "Geologic sequestration site" means the underground geologic formations where the carbon dioxide is intended to be stored;
  • (xxii) "Geologic sequestration facilities" means the surface equipment used for transport, storage and injection of carbon dioxide.

Carbon sequestration permit requirements and Unitization are outlined in 35-11-313 through 35-11-317

Water Quality Rules Chapter 24, Section 2(v) “Geologic sequestration project” means an injection well or wells used to emplace a carbon dioxide stream into an injection zone for geologic sequestration.  It includes the subsurface three-dimensional extent of the carbon dioxide plume, associated pressure front, and displaced fluid, as well as the surface area above that delineated region.

Permitting Process

The Wyoming Department of Environmental Quality implements the Underground Injection Control Class VI Program.  Water Quality Rules, Chapter 24 outlines the permitting requirements for Class VI wells. 

The following is the permitting, operating and closure process for a Class VI well in Wyoming:

For more information on how to apply for a Class VI permit, please review the Class VI Injection Wells and Facilities Underground Injection Control Program Informational Program Packet located in the ‘Forms and Guidance’ tab above.

Forms are also available for:

  • Informational Meeting
  • Site Characterization
  • Pre-application Meeting
  • Permit Application Part 1
  • Permit Application Part 2 (a Word Version is available upon request)
  • Depth Waiver Form
  • Expansion of the Areal Extent of a Class II Aquifer Exemption

Questions regarding Class VI wells and the permitting process, or to request a Word version of the Permit Application Part 2, please contact Lily R. Barkau, P.G. at (307) 777-7072 or


Section 1421 of the Safe Drinking Water Act (SDWA) requires the US EPA to develop UIC program requirements that protect underground sources of drinking water.  Primary enforcement authority, often called primacy, refers to state, territory, or tribal responsibilities associated with implementing US EPA approved UIC programs.  Primacy programs are established under Section 1422 and 1425 of the SDWA. Wyoming received primacy over Class I through V in 1983.  The Wyoming Department of Environmental Quality received primacy over Class VI wells on September 3, 2020.  Wyoming is one of two states to have received primacy for implementing the Class VI program; the other is North Dakota.


Wyoming’s primacy documents can be found here:

Class VI Applications

The Wyoming Department of Environmental Quality has received the following permit applications and information on the status of the applications are included below:

Applicant: North Shore Exploration and Production, LLC

Project Name: Painter Reservoir CCS1

Received: December 1, 2021

Status:  Under Review

File (NSE_ClassVI_Draft_12_1_2021.pdf)

Applicant: Frontier Carbon Solutions, LCC
Project Name: Sweetwater Carbon Storage Hub
Received: September 15, 2022
Applicant: Tallgrass 
Project Name: Eastern Wyoming Sequestration Hub
Received: March 29, 2023
Status: Under Review