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Pavillion Area Investigation
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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.
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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:
- Storm Water Construction, Mineral Mining, and Industrial General Permits.
- Underground Injection Control (UIC) General Permits
- Water and Wastewater Construction General Permits.
- WYPDES General Permits
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Proposed Rules and Regulations
The Water Quality Division will present proposed revisions to Water Quality Rules Chapter 1, Wyoming Surface Water Quality Standards; and Chapter 2, Permit Regulations for Discharges to Wyoming Surface Waters to the Water and Waste Advisory Board at their June 13, 2024 meeting, starting at 9:00 a.m. The proposed revisions to Chapter 1 (1) fulfill the federal requirements at 40 CFR § 131.20, (2) restructure and align requirements with state law and federal law, regulations, and guidance; (3) revise designated uses and remove the designated use classification system; and (4) provide minor updates to specific water quality criteria. The proposed revisions to Chapter 2 (1) update references to the designated use classification system to reflect proposed revisions to Chapter 1; and (2) incorporate provisions related to fish toxicants, aquatic pesticides, and short-term sediment disturbance that Water Quality Division proposes to move from Chapter 1 to Chapter 2. More information is available at: http://deq.wyoming.gov/shwd/wwab/ under the “Upcoming Meeting” tab
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.
Pavillion Area Investigation
On June 23, 2013, the State of Wyoming announced that it would further investigate drinking water quality in the rural area east of Pavillion, Wyoming.
The Wyoming Department of Environmental Quality (WDEQ) and the Wyoming Oil and Gas Conservation Commission (WOGCC) have been leading this scientific investigation and will seek to address water quality concerns by evaluating the water quality of certain domestic water wells, the integrity of certain oil and gas wells, and historic pits in the Pavillion area.
The state’s investigation seeks to clarify water quality concerns and assess the need for any further action to protect drinking water resources. Wyoming will continue its work to assure residents have a clean source of drinking water available.
Working Group
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Investigation Plan
On June 20, 2013, the Wyoming Oil and Gas Conservation Commission and the Wyoming Department of Environmental Quality released their Pavillion Investigation Plan. This plan and other related documents, are available for download below.
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Investigation Final Report 2016
Below are all documents related to the PAVILLION, WYOMING AREA DOMESTIC WATER WELLS FINAL REPORT AND PALATABILITY STUDY.
Keep in mind, many of the appendices below are large documents and may take time to download. If you experience technical difficulties while downloading these documents, please email us at wyodeq@wyo.gov.
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Final Report 2019
On December 23, 2019, the Wyoming Department of Environmental Quality (DEQ) released its Final Pavillion, Wyoming Gas Field Domestic Water Wells Report on Recommendations for Further Investigation.
This final report presents the findings of domestic water wells sampling conducted as part of the recommendations for further investigation identified in the November 2016 Pavillion, Wyoming Area Domestic Water Wells Final Report and Palatability Study (WDEQ 2016 Final Report),
The report and a fact sheet are available for review below.
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Outside Documents and Data
This page offers several documents and data from outside groups relating to the Pavillion Investigation.
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Public Comments
Below are a list of public comments received regarding DEQ's Pavillion, WY Draft Report. This Draft Report was open to public comments for 90 days and closed on March 18, 2016.
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