Pavillion Area Investigation

Working Group

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.

Investigation Final Report 2016


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

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.  

Outside Documents and Data
This page offers several documents and data from outside groups relating to the Pavillion Investigation.

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.

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.