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

Recent News

DEQ issues cyanidation permit modification to Perpetua Resources Idaho, Inc.

May 20, 2026 | News Releases

BOISE – The Idaho Department of Environmental Quality (DEQ) is issuing a cyanidation permit modification to Perpetua Resources Idaho, Inc (Perpetua Resources) for the Stibnite Gold Project (SGP).

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DEQ prepares IPDES preliminary draft permit for Stibnite Gold Project worker housing facility

May 19, 2026 | News Releases

BOISE – The Idaho Department of Environmental Quality (DEQ) is releasing an Idaho Pollutant Discharge Elimination System (IPDES) preliminary draft permit for preliminary review to Perpetua Resources I…

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DEQ seeks members for Southwest Basin Advisory Group

May 18, 2026 | News Releases

BOISE – The Idaho Department of Environmental Quality (DEQ) is seeking multiple representatives to fill vacancies on the Southwest Basin Advisory Group (BAG).

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DEQ awards $40,527,566 to the City of Sandpoint, Bonner County

BOISE – The Idaho Department of Environmental Quality (DEQ) today announced the award of a $38,000,000 low-interest wastewater construction loan and $2,527,566 in Legislative Supplemental Funding to t…

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Did You Know?

DEQ contracts for a variety of technical services. To receive a notification for bidding opportunities, submit DEQ’s Vendor Form: Word | PDF.

For a list of current contract announcements, see DEQ’s Vendor Opportunities web page.
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