DEQ issues cyanidation permit modification to Perpetua Resources Idaho, Inc.

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).

DEQ prepares IPDES preliminary draft permit for Stibnite Gold Project worker housing facility

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 Idaho, Inc. regarding the Stibnite gold project worker housing facility.

DEQ seeks members for Southwest Basin Advisory Group

BOISE – The Idaho Department of Environmental Quality (DEQ) is seeking multiple representatives to fill vacancies on the Southwest Basin Advisory Group (BAG).

Wyoming, Idaho, and Utah Departments of Environmental Quality announce results of 2021 Tri-State Bear Survey

CHEYENNE, Wyo. — The Wyoming, Idaho, and Utah Departments of Environmental Quality have announced the results of the 2021 Tri-State Bear Survey (TBS), a water quality assessment of perennial streams and rivers within the Upper and Central Bear River Basin.

DEQ awards $89,505 to two Idaho water systems

BOISE — The Idaho Department of Environmental Quality (DEQ) awarded $89,505 to two water systems to help evaluate deficiencies and determine necessary upgrades.

DEQ seeks applications for fiscal year 2027 nonpoint source management grant program 

BOISE – The Idaho Department of Environmental Quality (DEQ) is seeking grant applications for the fiscal year 2027 federal nonpoint source management § 319 funding cycle. 

DEQ issues last call for fiscal year 2027 State Agricultural Best Management Practices Grant Program

BOISE – The Idaho Department of Environmental Quality (DEQ) will close the application period for the fiscal year 2027 State Agricultural Best Management Practices (BMP) Grant Program on April 17, 2026.

DEQ seeks representatives for Middle Snake Watershed Advisory Group

TWIN FALLS – The Idaho Department of Environmental Quality (DEQ) is seeking representatives to fill two vacancies on the Middle Snake Watershed Advisory Group (WAG).

DEQ Finalizes IPDES Multi-Sector General Permit (MSGP) for Industrial Stormwater Discharges

BOISE – The Idaho Department of Environmental Quality (DEQ) finalized the Idaho Pollutant Discharge Elimination System (IPDES) Multi-Sector General Permit (MSGP) for stormwater discharges associated with industrial activity.

DEQ seeks representatives for Potlatch River Watershed Advisory Group

LEWISTON – The Idaho Department of Environmental Quality (DEQ) is seeking representatives to fill six vacancies on the Potlatch River Watershed Advisory Group (WAG).

DEQ seeks representative for Wood River Watershed Advisory Group

TWIN FALLS – The Idaho Department of Environmental Quality (DEQ) is seeking a representative to fill a vacancy on the Wood River Watershed Advisory Group (WAG).  

DEQ seeks applications for fiscal year 2027 State Agricultural Best Management Practices Grant Program

BOISE – The Idaho Department of Environmental Quality (DEQ) is accepting applications for the fiscal year 2027 State Agricultural Best Management Practices (BMP) Grant Program.

DEQ seeks representatives for Walcott Watershed Advisory Group

TWIN FALLS – The Idaho Department of Environmental Quality (DEQ) seeks representatives to fill vacancies on the Walcott Watershed Advisory Group (WAG). 

DEQ seeks livestock and grazing representative for the Middle Snake Watershed Advisory Group

TWIN FALLS – The Idaho Department of Environmental Quality (DEQ) is seeking a representative to fill a vacancy on the Middle Snake Watershed Advisory Group (WAG).

DEQ seeks member for Clearwater Basin Advisory Group

LEWISTON – The Idaho Department of Environmental Quality (DEQ) is seeking a representative to fill a vacancy on the Clearwater Basin Advisory Group (BAG). 

DEQ preparing draft 401 water quality certification for Ashton Hydroelectric Project

IDAHO FALLS – The Idaho Department of Environmental Quality (DEQ) is preparing a draft 401 water quality certification for the Ashton Hydroelectric Project—Federal Energy Regulatory Commission (FERC) Docket No. P-2381.

DEQ seeks central Idaho grower representative for the Crop Residue Burning Advisory Committee

BOISE – The Idaho Department of Environmental Quality (DEQ) is seeking a representative to fill an open central Idaho grower position on the Crop Residue Burning (CRB) Advisory Committee. 

Applicants sought for the National Water Quality Initiative

TWIN FALLS – The Natural Resources Conservation Service (NRCS) is seeking applicants in the Middle Snake River region for National Water Quality Initiative (NWQI) funding.

DEQ issues memorandum for current and new IPDES Multi-Sector General Permit operators

BOISE – The Idaho Department of Environmental Quality (DEQ) issued a memorandum offering administrative continuance for current Idaho Pollution Discharge Elimination System (IPDES) Multi-Sector General Permit (MSGP) holders and no action assurance for certain new operators.

DEQ awards $412,975 to Camelot Water Association, Inc.

BOISE – The Idaho Department of Environmental Quality (DEQ) awarded $412,975 in low-interest drinking water lead service line loan funding today to the Camelot Water Association, Inc. in Canyon County, Idaho.

DEQ seeks representatives for Walcott Watershed Advisory Group

TWIN FALLS – The Idaho Department of Environmental Quality (DEQ) seeks representatives to fill vacancies on the Walcott Watershed Advisory Group (WAG). 

DEQ preparing draft 401 water quality certification for Felt Hydroelectric Project

IDAHO FALLS – The Idaho Department of Environmental Quality (DEQ) is preparing a draft 401 water quality certification for the Felt Hydroelectric Project—Federal Energy Regulatory Commission (FERC) Docket No. P-5089.

DEQ prepares IPDES preliminary draft permit for the Jug Mountain Ranch Wastewater Treatment Plant

BOISE – The Idaho Department of Environmental Quality (DEQ) is releasing an Idaho Pollutant Discharge Elimination System (IPDES) preliminary draft permit to the Jug Mountain Ranch Wastewater Treatment Plantfor preliminary review.

DEQ seeks livestock and grazing representative for the Middle Snake Watershed Advisory Group

TWIN FALLS – The Idaho Department of Environmental Quality (DEQ) is seeking a representative to fill a vacancy on the Middle Snake Watershed Advisory Group (WAG).

DEQ to host Basin Advisory Group Chair meeting for fiscal year 2026 nonpoint source project selection 

BOISE – The Idaho Department of Environmental Quality (DEQ) is hosting a Basin Advisory Group Chair meeting to evaluate §319 nonpoint source projects that are eligible for federal funding. 

DEQ releases 2026 Idaho Pollutant Discharge Elimination System Program Permit Issuance Plan 

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

DEQ awards $869,000 to Birch Creek Culinary Water Company in Franklin County

BOISE – The Idaho Department of Environmental Quality (DEQ) today awarded an $869,000 low-interest drinking water construction loan to the Birch Creek Culinary Water Company in Franklin County, Idaho.

DEQ announces drinking water and wastewater funding opportunities for fiscal year 2027   

October 17, 2025

BOISE –The Idaho Department of Environmental Quality (DEQ) is announcing fiscal year 2027 funding opportunities for Idaho’s drinking water and wastewater systems.

DEQ seeks representatives for Upper Snake Basin Advisory Group

August 25, 2025
TWIN FALLS - The Idaho Department of Environmental Quality (DEQ) is seeking representatives from the environmental and nonmunicipal permittee industries to fill two vacancies on the Upper Snake Basin Advisory Group (BAG). 

DEQ seeks representative for Wood River Watershed Advisory Group 

August 15, 2025
TWIN FALLS — The Idaho Department of Environmental Quality (DEQ) is seeking a representative from the concentrated animal feeding operation or irrigated agriculture industry to fill a vacancy on the Wood River Watershed Advisory Group (WAG).  

UPDATED: DEQ extends participation deadline for private well sampling event in Burley, Idaho

August 14, 2025

BURLEY – The Idaho Department of Environmental Quality (DEQ) is extending the deadline for private well owners in the Marsh Creek Nitrate Priority Area to participate in a private well sampling event. Residents in the city of Burley south of the Snake River are encouraged to participate.

Nonpoint source management grant applications due July 15, 2025 

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