Home - Wyoming Department of Environmental Quality %

Call: 1-307-777-7937

Open Hours: Mon - Fri 8:00 am - 5:00 pm

Spill/Complaint: 1-307-777-7501

Main #: 1-307-777-7937

Spill Call: 1-307-777-7501

Sunrise over Theodore Roosevelt National Park, North Dakota

Wyoming Department
of Environmental Quality

Dramatic Sunrise at Devils Tower National Monument – Wyoming

Panoramic view of Grand Tetons national mountain range

An autumn landscape scene in Jackson Hole, Wyoming, including an

Wyoming Department of Environmental Quality

Wyoming Department
of Environmental Quality

To protect, conserve and enhance the quality of Wyoming’s environment for the benefit of current and future generations.

Find out more

DEQ's Mission

To protect, conserve and enhance the quality of Wyoming’s environment
for the benefit of current and future generations.

Trending Now

Water and Waste Advisory Board Meeting: Revisions to Water Quality Rules, Chapter 1, Wyoming Surface Water Quality Standards; and Chapter 2, Permit Regulations for Discharges to Wyoming Surface Waters.

Municipality and County Government Diesel Equipment Replacement Grant

DEQ Divisions

June 7, 2024

UPDATE: The Department of Environmental Quality Provides Additional Information on Hudson Wastewater Release

DEQ

On Tuesday, June 4, 2024, in response to the release of treated wastewater from the Town of Hudson’s lagoons in late May, WDEQ conducted monitoring of Escherichia coli (E. coli), an indicator used to determine potential risks due to waterborne pathogens, at four recreation sites in Boysen Reservoir within Boysen State Park (please...

June 4, 2024

The Department of Environmental Quality Provides Update on Hudson Wastewater Release

DEQ

By Kimberly Mazza On Friday, May 31, the Town of Hudson notified the Department of Environmental Quality (DEQ) regarding a release of treated wastewater from the town’s lagoons. The release happened sometime between Thursday May 30 and the morning of Friday May 31. The Town immediately addressed the increased discharge when it was...

June 4, 2024

Wyoming Department of Environmental Quality Presents at the NASA Health and Air Quality Applications Annual Program Review

Air Quality

By Kimberly A. Mazza CHEYENNE – Amber Potts, Air Quality Resource Program Manager with the Wyoming Department of Environmental Quality-Air Quality Division was in Jackson recently to welcome the NASA Health and Air Quality Applications Team to Wyoming. A part of NASA’s Earth Science Applied Science, the NASA Health and Air Quality Applications...

May 28, 2024

DEQ awards annual coal reclamation award to North Antelope Rochelle Mine

DEQ

The Department of Environmental Quality (DEQ) Excellence in Mining Reclamation Awards are given to Wyoming coal and noncoal mine operators who demonstrate an achievement in a specific aspect of mine reclamation or for overall performance in meeting reclamation goals. The 2024 DEQ Excellence in Mining Reclamation Awards will be presented at the 68th...