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

Protect yourself and your pets from harmful algal blooms this summer 

June 26, 2025
BOISE – Summer is peak season for harmful algal blooms (also known as blue-green algae, cyanobacteria harmful algal blooms, or HABs) and Idahoans are reminded to stay safe and protect their pets when recreating in and around water. 

DEQ prepares IPDES preliminary draft permit for JK Potatoes LLC hydrocooling facility

June 26, 2025
BOISE – The Idaho Department of Environmental Quality (DEQ) is releasing an Idaho Pollutant Discharge Elimination System (IPDES) preliminary draft permit to JK Potatoes LLC for preliminary review. The facility has ten days to review the preliminary draft permit and fact sheet for any errors and omissions that should be addressed before the public participation period.

UPDATED: DEQ extends deadline for Lower North Fork Clearwater River Watershed Advisory Group membership

June 4, 2025
LEWISTON – The Idaho Department of Environmental Quality (DEQ) is extending the deadline for Lower North Fork Clearwater River Watershed Advisory Group (WAG) membership to June 30, 2025.

DEQ awards $3.9 million in emerging contaminant funding to two Idaho water systems

June 2, 2025
BOISE – The Idaho Department of Environmental Quality (DEQ) today awarded $3,932,000 in drinking water emerging contaminant construction loan funding to YMCA Camp at Horsethief Reservoir and the city of St. Maries.

DEQ awards $9.6 million to two Idaho water systems

June 2, 2025

BOISE — The Idaho Department of Environmental Quality (DEQ) awarded $9,640,000 to Idaho water systems in Canyon and Boundary counties to support wastewater and drinking water system upgrades.

DEQ prepares IPDES preliminary draft permit modifications for Hayden Area Regional Sewer Board and cities of Post Falls and Coeur d’Alene

May 29, 2025
The Idaho Department of Environmental Quality (DEQ) released modified Idaho Pollutant Discharge Elimination System (IPDES) preliminary draft permits to the Hayden Area Regional Sewer Board and the cities of Post Falls and Coeur d’Alene for preliminary review.

DEQ seeks representatives for Middle Snake Watershed Advisory Group

May 29, 2025
TWIN FALLS — The Idaho Department of Environmental Quality (DEQ) is seeking members representing conservation, livestock and grazing, recreation, and the Middle Snake Regional Water Resource Commission to serve on the Middle Snake Watershed Advisory Group (WAG).

DEQ seeks additional applications for the Teton River Watershed Advisory Group

May 14, 2025
IDAHO FALLS – The Idaho Department of Environmental Quality (DEQ) seeks additional applications for the newly formed Teton River Watershed Advisory Group (WAG).

DEQ prepares IPDES preliminary draft permit for the city of Gooding Wastewater Treatment Facility

May 5, 2025

BOISE – The Idaho Department of Environmental Quality (DEQ) is releasing an Idaho Pollutant Discharge Elimination System (IPDES) preliminary draft permit to the city of Gooding for preliminary review.

DEQ prepares revised IPDES preliminary draft permit for Stibnite Gold Project

April 18, 2025
The Idaho Department of Environmental Quality (DEQ) is releasing a revised Idaho Pollutant Discharge Elimination System (IPDES) preliminary draft permit to Perpetua Resources Idaho, Inc. for preliminary review.

DEQ seeks applications for fiscal year 2026 nonpoint source management grant program 

April 15, 2025
BOISE – The Idaho Department of Environmental Quality (DEQ) is seeking grant applications for the fiscal year 2026 federal nonpoint source management § 319 funding cycle. 

DEQ accepting State Agricultural Best Management Practices Grant Program applications through April 15, 2025 

April 8, 2025
BOISE — Applicants interested in implementing agricultural or ranching best management practices have until April 15, 2025, to submit applications under the state Agricultural Best Management Practices (BMP) Grant Program. 

DEQ issues final cyanidation permit for Perpetua Resources Idaho, Inc. 

March 31, 2025 

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

DEQ seeks members for new Teton River Watershed Advisory Group

March 17, 2025

IDAHO FALLS – The Idaho Department of Environmental Quality (DEQ) seeks representatives to form a Teton River Watershed Advisory Group (WAG).

DEQ seeks applications for fiscal year 2026 State Agricultural Best Management Practices Grant Program 

March 14, 2025
BOISE — The Idaho Department of Environmental Quality (DEQ) is accepting applications for the fiscal year 2026 State Agricultural Best Management Practices (BMP) Grant Program. 

DEQ seeks representative for Wood River Watershed Advisory Group 

March 10, 2025
TWIN FALLS – The Idaho Department of Environmental Quality (DEQ) is seeking members to represent confined animal feeding operation and irrigated agriculture interests on the Wood River Watershed Advisory Group (WAG).  

DEQ seeks members for the Clearwater River Upper Tributaries Watershed Advisory Group

February 10, 2025
LEWISTON – The Idaho Department of Environmental Quality (DEQ) is seeking representatives to fill four vacancies on the Clearwater River Upper Tributaries Watershed Advisory Group (WAG).

DEQ recommends EPA designate all Idaho airsheds as meeting new particulate matter standards

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).  

DEQ seeks representatives for the Boise-Mores Watershed Advisory Group

February 3, 2025

IDAHO CITY – The Idaho Department of Environmental Quality (DEQ) seeks representatives to fill vacancies on the Boise-Mores Watershed Advisory Group (WAG).

DEQ seeks members for Clearwater Basin Advisory Group 

January 31, 2025 

LEWISTON – The Idaho Department of Environmental Quality (DEQ) is seeking representatives to fill two vacancies on the Clearwater Basin Advisory Group (BAG).

DEQ seeks representatives for Walcott Watershed Advisory Group 

January 24, 2025
TWIN FALLS – The Idaho Department of Environmental Quality (DEQ) seeks representatives to fill vacancies on the Walcott Watershed Advisory Group (WAG).