Idaho Department
of Environmental Quality

October 19, 2022
BOISE — The Idaho Department of Environmental Quality (DEQ) today released the 2023 Idaho Pollutant Discharge Elimination System Program (IPDES) Permit Issuance Plan for the upcoming calendar year. 

March 31, 2025 

BOISE – The Idaho Department of Environmental Quality (DEQ) is issuing a cyanidation permit for the Stibnite Gold Project (SGP).

February 22, 2023
LAVA HOT SPRINGS – The Idaho Department of Environmental Quality (DEQ) seeks comment on a draft Idaho Pollutant Discharge Elimination System (IPDES) permit for the city of Lava Hot Springs publicly owned treatment works (POTW).

October 4, 2024

SILVER VALLEY – The Idaho Department of Environmental Quality (DEQ) is encouraging ongoing efforts to maintain healthy air quality in the Silver Valley and comply with new federal standards.