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

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DEQ awards $4,500,000 to Twenty Mile Creek Water Users Association in Boundary County, Idaho

BOISE – The Idaho Department of Environmental Quality (DEQ) today announced the award of a $4,500,000 low-interest drinking water construction loan to the Twenty Mile Creek Water Users Association in …

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DEQ awards $89,505 to two Idaho water systems

April 22, 2026 | News Releases

BOISE — The Idaho Department of Environmental Quality (DEQ) awarded $89,505 to two water systems to help evaluate deficiencies and determine necessary upgrades.

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DEQ awards $1,800,000 to the City of Lewiston

BOISE – The Idaho Department of Environmental Quality (DEQ) today awarded $1,800,000 in low-interest drinking water emerging contaminant construction loan funding to the City of Lewiston in Nez Perce …

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DEQ seeks applications for fiscal year 2027 nonpoint source management grant program 

April 20, 2026 | News Releases

BOISE – The Idaho Department of Environmental Quality (DEQ) is seeking grant applications for the fiscal year 2027 federal nonpoint source management § 319 funding cycle. 

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Did You Know?

Hazardous waste generators are classified by the amount of hazardous waste generated in a calendar month. See DEQ’s Generator Size Categories page for classification information.
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