Updated at 3:50 p.m. MT on July 24, 2026: DEQ issued an Air Quality Advisory for 12 Idaho counties: Ada, Boundary, Bonner, Canyon, Clearwater, Gem, Idaho, Latah, Lewis, Nez Perce, Payette, and Washington Counties, where all burning is prohibited. Take steps to protect your health and check DEQ’s air quality advisories map for future burn decisions.
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April 9, 2024
BOISE – The Idaho Department of Environmental Quality (DEQ) is accepting small suction dredge mining permit applications for the 2024 season.
February 15, 2024
IDAHO COUNTY – The Idaho Department of Environmental Quality (DEQ) seeks comment on a notice of intent to terminate the coverage of McKinley Mine (IDR05J00C) under the 2021 Idaho Pollutant Discharge Elimination System (IPDES) Multi-Sector General Permit for Industrial Storm Water Discharges Associated with Industrial Activity (IDR050000) (MSGP).
September 1, 2023
BOISE — The Idaho Department of Environmental Quality (DEQ) received an application from Perpetua Resources Idaho, Inc. for a permit to construct, operate, and close a cyanidation facility intended to contain, treat, or dispose of process water or process-contaminated water containing cyanide.
April 5, 2023
BOISE — The Idaho Department of Environmental Quality (DEQ) today announced the award of $50,550,110 in construction grants to 14 drinking water and wastewater systems.