Idaho Department
of Environmental Quality

February 4, 2025

BOISE – The Idaho Department of Environmental Quality (DEQ) recommends that the U. S. Environmental Protection Agency (EPA) designate all Idaho airsheds as meeting new federal health standards for particulate matter (PM2.5).  

BOISE – The Idaho Department of Environmental Quality (DEQ) today released the 2026 Idaho Pollutant Discharge Elimination System Program (IPDES) Permit Issuance Plan.

October 4, 2024 

BOISE – The Idaho Department of Environmental Quality today issued a modified Idaho Pollutant Discharge Elimination System (IPDES) permit for the University of Idaho.

July 20, 2023
TWIN FALLS — The Idaho Department of Environmental Quality (DEQ) is seeking representatives to fill five vacancies on the Wood River Watershed Advisory Group (WAG).