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Wyoming Department
of Environmental Quality
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.

DEQ's Mission

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

 
Learn more

DEQ Divisions

Hot Topics

January 16, 2025

DEQ 2025 School Bus Replacement Program is now open

DEQ
The Wyoming Department of Environmental Quality (WYDEQ) is providing over $1,000,000 of grant funding for early replacement of diesel school buses through the Diesel Emissions Reduction Act (DERA 23 and 24 Grants).   The WYDEQ created the School Bus Replacement Program in 2016 with money from the Environmental Protection Agency’s Diesel Emissions Reduction Act and […]
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March 13, 2025

March 13th is Know Your Well Day

DEQ
By Kimberly Mazza CHEYENNE – To honor the vital role of groundwater for Wyoming residents and in support of the National Groundwater Association’s “Groundwater Awareness Week,” the Wyoming Department of Environmental Quality (DEQ) Water Quality Division (WQD) has declared March 13th as “Know Your Well Day.” This initiative is part of a DEQ program designed […]
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February 10, 2025

WDEQ Celebrates Professional Water and Wastewater Operators

Water Quality
CHEYENNE, WY – Wyoming Governor Mark Gordon has proclaimed the week of February 10-16, 2025, as Wyoming Professional Water and Wastewater Operator Appreciation Week. The Wyoming Department of Environmental Quality (WDEQ) is joining the Governor in recognizing the essential role these professionals play in safeguarding public health and protecting the environment across the state. “Water […]
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January 23, 2025

The DEQ adds mobile air quality monitor to Lysite

Air Quality
Cheyenne, Wyo – The Wyoming Department of Environmental Quality (DEQ), Air Quality Division (AQD) has begun operating a mobile ambient monitoring station in Lysite, Wyoming.  The AQD will be holding an open house regarding the mobile station on March 4, 2025, 10 a.m.– 12 p.m. at the Lysite – Lost Cabin Community Recreation Center. The public is […]
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January 16, 2025

DEQ 2025 School Bus Replacement Program is now open

DEQ
The Wyoming Department of Environmental Quality (WYDEQ) is providing over $1,000,000 of grant funding for early replacement of diesel school buses through the Diesel Emissions Reduction Act (DERA 23 and 24 Grants).   The WYDEQ created the School Bus Replacement Program in 2016 with money from the Environmental Protection Agency’s Diesel Emissions Reduction Act and […]
Read More
March 13, 2025

March 13th is Know Your Well Day

DEQ
By Kimberly Mazza CHEYENNE – To honor the vital role of groundwater for Wyoming residents and in support of the National Groundwater Association’s “Groundwater Awareness Week,” the Wyoming Department of Environmental Quality (DEQ) Water Quality Division (WQD) has declared March 13th as “Know Your Well Day.” This initiative is part of a DEQ program designed […]
Read More


Media Inquiries:
Kimberly A. Mazza
Public Information Supervisor
307-777-7753
307-509-9748

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