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

Recent News

DEQ issues last call for fiscal year 2027 State Agricultural Best Management Practices Grant Program

April 13, 2026 | News Releases

BOISE – The Idaho Department of Environmental Quality (DEQ) will close the application period for the fiscal year 2027 State Agricultural Best Management Practices (BMP) Grant Program on April 17, 202…

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DEQ seeks representatives for Middle Snake Watershed Advisory Group

April 9, 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 Finalizes IPDES Multi-Sector General Permit (MSGP) for Industrial Stormwater Discharges

April 2, 2026 | News Releases

BOISE – The Idaho Department of Environmental Quality (DEQ) finalized the Idaho Pollutant Discharge Elimination System (IPDES) Multi-Sector General Permit (MSGP) for stormwater discharges associated w…

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DEQ awards $1,501,280 to the City of Lewiston

BOISE – The Idaho Department of Environmental Quality (DEQ) today awarded $1,501,280 in low-interest wastewater emerging contaminant construction loan funding to the City of Lewiston in Nez Perce Coun…

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Did You Know?

Groundwater monitoring data is available on DEQ’s Groundwater Monitoring and Protection page. The Idaho Department of Health and Welfare also provides an interactive map for private well owners identifying groundwater quality data.
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