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Announcement Icon Updated at 11 a.m. MT on August 14, 2026: DEQ issued an Air Quality Advisory for the following Idaho counties: Clearwater and Idaho Counties, where all burning is prohibited. Take steps to protect your health and check DEQ’s air quality advisories map for future burn decisions. Learn more Close
We protect human health and the quality of Idaho's air, land, and water.

Recent News

DEQ seeks representative for Middle Snake Watershed Advisory Group

August 14, 2026 | News Releases

TWIN FALLS – The Idaho Department of Environmental Quality (DEQ) is seeking representatives to fill two vacancies on the Middle Snake Watershed Advisory Group (WAG).

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DEQ seeks representative for Wood River Watershed Advisory Group

August 11, 2026 | News Releases

TWIN FALLS – The Idaho Department of Environmental Quality (DEQ) is seeking a representative to fill a vacancy on the Wood River Watershed Advisory Group (WAG). 

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Avista reducing water releases from Post Falls Dam to minimum required levels

August 7, 2026 | News Releases

SPOKANE, WA –Avista will reduce water releases from Post Falls Dam to the minimum level required under Avista’s federal operating license beginning this week.

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DEQ seeks participation in private well sampling in Minidoka County, Idaho

August 4, 2026 | News Releases

BOISE – The Idaho Department of Environmental Quality (DEQ) is reaching out to private domestic well owners within the Minidoka Nitrate Priority Area in Minidoka County to participate in a sampling ev…

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Did You Know?

DEQ does not regulate contrails. For more information on aircraft emissions or to access EPA’s or the U.S. Federal Aviation Administration’s (FAA’s) aircraft regulations, visit the Regulations for Emissions from Aircraft. The FAA also has a website on emissions with links to contrails research.
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