Idaho Department
of Environmental Quality

July 8, 2025
BOISE – States, territories, and tribes interested in nonpoint source pollution management activities have until July 15, 2025, to submit applications under the federal § 319 grant program

September 18, 2023
POCATELLO – The Idaho Department of Environmental Quality (DEQ) is preparing a draft 401 water quality certification for the American Falls Hydroelectric Project – Federal Energy Regulatory Commission (FERC) Docket No. P-2736. 

BOISE — The Idaho Department of Environmental Quality (DEQ) is releasing an Idaho Pollutant Discharge Elimination System Program (IPDES) preliminary draft permit to the City of Deary for preliminary review.