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

Recent News

DEQ awards $7,383,448 to the City of Kendrick in Latah County

BOISE – The Idaho Department of Environmental Quality (DEQ) today announced the award of a $7,383,448 low-interest wastewater construction loan to the City of Kendrick in Latah County, Idaho.

Read More

DEQ awards $2,000,000 to Camp Fire Inland Northwest in Kootenai County, Idaho

BOISE – The Idaho Department of Environmental Quality (DEQ) today announced the award of a $2,000,000 low-interest drinking water construction loan to Camp Fire Inland Northwest in Kootenai County, Id…

Read More

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).

Read More

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…

Read More

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.
ver: 4.1.9 | last updated: