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Class VI

Enforcement Actions

The DEQ undertakes enforcement actions to preserve safe environmental conditions throughout Wyoming. 

This page contains information on the enforcement actions that the Water Quality Division may undertake, as well as a record of enforcement actions that have been undertaken by WQD.

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

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 https://deqspills.wyo.gov/home

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 https://wq.wyomingdeq.commentinput.com/comment/search.

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, ENGreview@cheyennebopu.org, or http://cheyennebopu.org for additional information.

Recent General Permit Authorizations

The DEQ Water Quality Division accepts comments on all permits authorized under a general permit for a period of 30 days, as provided for in W.S. 35-11-801(d).

Interested persons may mail or fax comments to the main Cheyenne office. The ‘Date’ column in the table below indicates the date the authorization was posted to the website. Comments must be received before 5:00 pm on the 30th day after the authorization was posted to the website. For example, comments for an authorization posted on 10/1/18 must be received by 5:00 p.m. on 10/31/18. DEQ does not accept emailed comments.

You may sort the table by posting date or search for the type of general permit, the county where the permit was issued, the permit number, or the name of the person or company to whom the permit was issued.

If you wish to review the general permit documents, please go to the web page for each permitting program:

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

Proposed Rules and Regulations

Water Quality Rules Chapter 12

The Wyoming Environmental Quality Council will consider proposed revisions to the
Wyoming Department of Environmental Quality Water Quality Rules Chapter 12, Design and Construction Standards for Public Water Supplies, Docket 22-3103, at a hearing to be held on November 15, 2022 in the Capitol Extension Public Meeting Room 5, Herschler Building, 122 W. 25th Street, Cheyenne, WY, 82002, starting at 9:00 a.m. (MST). The revisions include new requirements for public water supplies that propose well acidization, updates to water treatment technologies, and the incorporation by reference of the Recommended Standards for Water Works, 2018 Edition. More information is available at: https://eqc.wyo.gov/Public/Pleadings.aspx?DocketId=4336

Water Quality Rules Chapter 3

The Department of Environmental Quality has revised Water Quality Rules, Chapter 3, Regulations 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 Pollution.

The Environmental Quality Council adopted the revised rules at a public hearing located at the Capitol Extension Public Meeting Room 5, Herschler Building, 122 W. 25th Street, Cheyenne, Wyoming on June 14, 2022. The final rule was filed with the Wyoming Secretary of State on August 19, 2022.

Electronic copies of the rule are available from the Secretary of State at rules.wyo.gov , under “Current Rules,” “Environmental Quality, Dept of (020),” “Water Quality,” “Chapter 3.”

Water Quality Rules Chapter 29

The Department of Environmental Quality has created a new rule: Water Quality Rules Chapter 29, Geologic Sequestration Special Revenue Account Requirements.

The Environmental Quality Council adopted the new rule at a public hearing located at the Capitol Extension Public Meeting Room 5, Herschler Building, 122 W. 25th Street, Cheyenne, Wyoming on June 14, 2022. The final rule was filed with the Wyoming Secretary of State on August 19, 2022.

Electronic copies of the rule are available from the Secretary of State at rules.wyo.gov, under “Current Rules,” “Environmental Quality, Dept of (020),” “Water Quality,” “Chapter 29.”

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.

Class VI

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.

Contact
Contact

Questions regarding Class VI wells and the permitting process, or to request a Word version of the Permit Application Part 2:

Lily R. Barkau, P.G. 
(307) 777-7072 
lily.barkau@wyo.gov

Click here to Sign up for the Class VI listserv
Forms and Guidance
Forms and Guidance

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

Permit Applications
Permit Applications

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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 WordVersion is available upon request)
  • Depth Waiver Form
  • Expansion of the Areal Extent of a Class II Aquifer Exemption
What is a Class VI Well?

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

  • Is not experimental in nature and injects a carbon dioxide stream for geological sequestration, beneath the lowermost formation containing an underground source of drinking water. 

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:

Primacy

Section 1421 of the Safe Drinking Water Act (SOWA) 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:
https://www.federalregister.gov/documents/2020/10/09/2020-20544/wyoming-underground-injection- control-program -class-vi-primacy

Applicant: Tallgrass

Applicant: Tallgrass 
Project Name: Eastern Wyoming Sequestration Hub
Received: March 29, 2023
Status: Under Review

Applicant: Frontier Carbon Solutions

Applicant: Frontier Carbon Solutions, LLC
Project Name: Sweetwater Carbon Storage Hub
Received: September 15, 2022
Status: In Public Notice – See Water Quality Public Notices

Applicant: North Shore Exploration and Production

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

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