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We protect human health and the quality of Idaho's air, land, and water.

Recent News

DEQ awards $860,000 to the City of Arco

June 26, 2026 | News Releases

BOISE – The Idaho Department of Environmental Quality (DEQ) today awarded $860,000 in low-interest drinking water lead service line loan funding to the City of Arco in Butte County, Idaho.

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DEQ seeks member for Clearwater Basin Advisory Group

June 23, 2026 | News Releases

LEWISTON – The Idaho Department of Environmental Quality (DEQ) is seeking a representative to fill a vacancy on the Clearwater Basin Advisory Group (BAG). 

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DEQ awards $2,179,100 to Garden City, Idaho

BOISE – The Idaho Department of Environmental Quality (DEQ) today awarded $2,179,100 in low-interest drinking water construction loan funding to Garden City in Ada County, Idaho.

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DEQ awards $1,250,000 to Cedar Springs Community Water, Inc. in Bonner County

BOISE – The Idaho Department of Environmental Quality (DEQ) today announced the award of a $1,250,000 low-interest drinking water construction loan to the Cedar Springs Community Water, Inc. in Bonner…

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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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