Category: Public Comment
DEQ seeks comment on draft 401 water quality certification for Klaveano Ranch streambank protection project
Accepting comments from June 27, 2025, through July 18, 2025.
BOISE – The Idaho Department of Environmental Quality (DEQ) is seeking comment on a draft water quality certification for the Klaveano Ranch streambank protection project.
The proposed project aims to stop active erosion along 900 feet of property and improve the riparian zone along Cat Spur Creek.
Based upon review of the federal permit application, readily available water quality related materials, and certification request in accordance with 40 C.F.R. §§ 121.5 (b) and (c) and 121.7 (c), DEQ, certifies that if the permittee complies with the terms and conditions imposed by the federal permit and the conditions set forth in this water quality certification, then it is reasonable for DEQ to conclude that the activity will comply with water quality requirements, including applicable requirements of the Clean Water Act §§ 301, 302, 303, 306, and 307, Idaho’s “Water Quality Standards” (IDAPA 58.01.02), and other appropriate water quality requirements of state law.
The draft certification is available for review on DEQ’s website. Written comments will be accepted through July 18, 2025, at 5 p.m. Pacific Time. Submit comments electronically using the form below or by mail or email to:
Robert Steed
2110 Ironwood Parkway
Coeur d’Alene, ID 83814
Robert.Steed@deq.idaho.gov
Related Documents
Draft Certification
Accessibility Services: The Idaho Department of Environmental Quality will provide reasonable language access services and/or disability services for documents at no charge. To request an accommodation under Title VI of the Civil Rights Act of 1964 or Americans with Disabilities Act, contact DEQ’s nondiscrimination coordinator at (208) 373-0271 or accessibility@deq.idaho.gov. Para obtener información en español, visite https://www.deq.idaho.gov/about-us/accessibility/.
UPDATED: DEQ extends comment period on draft IPDES permit for Stibnite Gold Project
Accepting comments from June 6, 2025, through July 22, 2025.
The Idaho Department of Environmental Quality (DEQ) is extending the public comment period for the draft Idaho Pollutant Discharge Elimination System (IPDES) permit for the Perpetua Resources Idaho, Inc. Stibnite Gold Project.
The initial public comment period was set to end on July 7, 2025. The public now has until July 22, 2025, to submit comments.
Perpetua Resources applied for a wastewater discharge permit for its industrial wastewater treatment facility, located in Valley County, Idaho, approximately 12 miles east of Yellow Pine, Idaho.
The draft permit would authorize the discharge of treated industrial wastewater year-round to Meadow Creek and to the East Fork of the South Fork Salmon River for five years. The permit identifies the pollutants of concern and the required limits for each pollutant, as well as monitoring and reporting requirements necessary to ensure compliance with the permit and protect human health and the environment.
The draft permit and fact sheet are available for public review at DEQ’s State Office (1410 N. Hilton St. Boise, Idaho 83706), DEQ’s Boise Regional Office (1445 N. Orchard St. Boise, Idaho 83706), and on DEQ’s website. Written comments on the draft permit and fact sheet will be accepted through July 22, 2025, at 5 p.m. MDT. A public meeting may be held if requested in writing by June 20, 2025.
Comments should address water quality considerations and include supporting materials where available. Comments should also reference Perpetua Resources Idaho, Inc., Stibnite Gold Project, and permit number ID0030066. Submit comments using the form below or via mail or email to Triffie Ransom:
Triffie Ransom
Idaho Department of Environmental Quality
Surface and Wastewater Division
1410 N. Hilton St.
Boise, ID 83706
Triffie.Ransom@deq.idaho.gov
Submit requests for a public meeting electronically using the form below or by mail or email to Amy Southern:
Amy Southern
Idaho Department of Environmental Quality
Surface and Wastewater Division
1410 N. Hilton St.
Boise, ID 83706
Amy.Southern@deq.idaho.gov
Related Documents
Draft permit materials
Accessibility Services: The Idaho Department of Environmental Quality will provide reasonable language access services and/or disability services for documents at no charge. To request an accommodation under Title VI of the Civil Rights Act of 1964 or Americans with Disabilities Act, contact DEQ’s nondiscrimination coordinator at (208) 373-0271 or accessibility@deq.idaho.gov. Para obtener información en español, visite https://www.deq.idaho.gov/about-us/accessibility/.
DEQ seeks comment on proposed settlement action with City of Aberdeen
Accepting comments from June 23, 2025, through July 23, 2025.
The Idaho Department of Environmental Quality (DEQ) is seeking comment on a proposed settlement action and consent judgment with the City of Aberdeen for violations of the Clean Water Act and Idaho Pollutant Discharge Elimination System (IPDES) permit. The violations occurred at the city’s publicly owned wastewater treatment facility, which discharges into Little Hole Draw, a tributary to the American Falls Reservoir.
The city obtained coverage under IPDES permit number ID0020176 as a discharger from its wastewater treatment facility at 2683 W. 1750 S. Aberdeen, Idaho. DEQ alleges that the city failed to comply with all applicable conditions of its permit. DEQ prepared a consent judgment directing Aberdeen to resolve the violations and pay an adjusted civil penalty of $26,525, with $21,220 administered as stipulated penalties, requiring the city to pay a total of $5,305 for the alleged violations. The city signed the consent judgment on April 8, 2025, and, in compliance with Idaho Code § 39-108(9) and the “Rules Regulating the Idaho Pollutant Discharge Elimination System Program” (IDAPA 58.01.25.500.04), DEQ is publishing the proposed settlement action for public comment.
The proposed settlement action is available for public review on DEQ’s Public Comment Opportunities web page and at DEQ’s State Office (1410 North Hilton Street, Boise, Idaho 83706). Written comments will be accepted through July 23, 2025, at 5 p.m. MST. This settlement action may be amended or adjusted in the future, in which case, DEQ may provide an additional public comment opportunity.
Submit comments electronically on DEQ’s website, by mail, or by email to:
Ben Johnson
Wastewater Enforcement Coordinator
Idaho Department of Environmental Quality
1410 N. Hilton St.
Boise, ID 83706
ben.johnson@deq.idaho.gov
Related Documents
DEQ seeks comment on draft IPDES permit for the city of Gooding wastewater treatment facility
Accepting comments from June 9, 2025, to July 9, 2025.
The Idaho Department of Environmental Quality (DEQ) seeks comment on a draft Idaho Pollutant Discharge Elimination System (IPDES) permit for the city of Gooding wastewater treatment facility.
The city applied for a wastewater discharge permit for its wastewater treatment facility, located at 1775 S 1800 E in Gooding, Idaho.
The draft permit would authorize the discharge of treated municipal wastewater year-round to the Little Wood River for five years. The permit identifies the pollutants of concern and the required limits for each pollutant or parameter, and monitoring and reporting requirements necessary to ensure compliance with the permit and protect human health and the environment.
The draft permit and fact sheet are available for public review at DEQ’s State Office (1410 N. Hilton Street, Boise, Idaho 83706), DEQ’s Twin Falls Regional Office (650 Addison Avenue W, Suite 110, Twin Falls, Idaho 83301), and on DEQ’s website. A public meeting may be held, if requested in writing, by June 23, 2025.
Written comments on the draft permit and fact sheet will be accepted through July 9, 2025, at 5 p.m. MDT. Comments should address water quality considerations and include supporting materials where available. Comments should also reference the city of Gooding wastewater treatment facility and permit number ID0020028.
Submit comments or questions using the form below or via mail or email to Lauri Monnot:
Lauri Monnot
Idaho Department of Environmental Quality
Surface and Wastewater Division
1410 N. Hilton St.
Boise, ID 83706
Lauri.Monnot@deq.idaho.gov
Submit requests for a public meeting electronically using the form below or by mail or by email to Amy Southern:
Amy Southern
Idaho Department of Environmental Quality
Surface and Wastewater Division
1410 N. Hilton St.
Boise, ID 83706
Amy.Southern@deq.idaho.gov
Related Documents
Draft permit materials
Accessibility Services: The Idaho Department of Environmental Quality will provide reasonable language access services and/or disability services for documents at no charge. To request an accommodation under Title VI of the Civil Rights Act of 1964 or Americans with Disabilities Act, contact DEQ’s nondiscrimination coordinator at (208) 373-0271 or accessibility@deq.idaho.gov. Para obtener información en español, visite https://www.deq.idaho.gov/about-us/accessibility/.
DEQ seeks comment on updates to Technical Guidance Manual for Individual and Subsurface Sewage Disposal Systems
Accepting comments from June 4, 2025, through July 7, 2025.
The Idaho Department of Environmental Quality (DEQ) seeks comment on the draft Technical Guidance Manual for Individual and Subsurface Sewage Disposal Systems (TGM).
The manual provides guidance on the design, construction, alteration, repair, operation, and maintenance of standard individual and subsurface sewage systems, their components, and alternatives. This document is updated periodically to adapt to the complex nature of small wastewater disposal systems.
At the May 2025 Technical Guidance Committee meeting, edits to the following sections were preliminarily approved:
| TGM Section | Item |
| 2.2.4.1 | Separation Distances Reductions |
| 4.17.5 | Pit Privy |
| 4.19.3.6 | Pump to Gravity |
| 4.20.2 | RV Dump Stations |
The draft materials are available for public review at DEQ’s State Office (1410 N. Hilton Street, Boise, Idaho) and on DEQ’s website. Written comments will be accepted through July 7, 2025, at 5 p.m. Mountain Time. Submit comments using the form below or by mail or email to:
Peter Adams
On-Site Wastewater Coordinator
1410 N. Hilton St.
Boise, ID 83706
peter.adams@deq.idaho.gov
Related Documents
Technical Guidance Manual for Individual and Subsurface Sewage Disposal Systems (May2025)
Accessibility Services: The Idaho Department of Environmental Quality will provide reasonable language access services and/or disability services for documents at no charge. To request an accommodation under Title VI of the Civil Rights Act of 1964 or Americans with Disabilities Act, contact DEQ’s nondiscrimination coordinator at (208) 373-0271 or accessibility@deq.idaho.gov. Para obtener información en español, visite https://www.deq.idaho.gov/about-us/accessibility/.
DEQ seeks comment on updates to the Technical Guidance Manual for Individual and Subsurface Sewage Disposal Systems
Accepting comments from March 11, 2025, through July 5, 2025.
The Idaho Department of Environmental Quality (DEQ) seeks comment on the draft Technical Guidance Manual for Individual and Subsurface Sewage Disposal Systems (TGM).
The manual provides guidance on the design, construction, alteration, repair, operation, and maintenance of standard individual and subsurface sewage systems, their components, and alternatives. This document is updated periodically to adapt to the complex nature of small wastewater disposal systems.
At the May 2025 Technical Guidance Committee meeting, edits to the following sections were preliminarily approved:
| TGM Section | Item |
| 2.2.4.1 | Separation Distances Reductions |
| 4.17.5 | Pit Privy |
| 4.19.3.6 | Pump to Gravity |
| 4.20.2 | RV Dump Stations |
The draft materials are available for public review at DEQ’s State Office (1410 N. Hilton Street, Boise, Idaho) and on DEQ’s Public Comment Opportunities page. Written comments will be accepted through July 5, 2025, at 5 p.m. Mountain Time. Submit comments using the form below or by mail or email to:
Peter Adams
On-Site Wastewater Coordinator
1410 N. Hilton St.
Boise, ID 83706
peter.adams@deq.idaho.gov
Related Documents
Technical Guidance Manual for Individual and Subsurface Sewage Disposal Systems (May2025)
Accessibility Services: The Idaho Department of Environmental Quality will provide reasonable language access services and/or disability services for documents at no charge. To request an accommodation under Title VI of the Civil Rights Act of 1964 or Americans with Disabilities Act, contact DEQ’s nondiscrimination coordinator at (208) 373-0271 or accessibility@deq.idaho.gov. Para obtener información en español, visite https://www.deq.idaho.gov/about-us/accessibility/.
DEQ seeks comment on draft IPDES permits for Hayden Area Regional Sewer Board and cities of Post Falls and Coeur d’Alene
Accepting comments from July 3, 2025, to August 4, 2025.
The Idaho Department of Environmental Quality (DEQ) seeks comment on modified draft Idaho Pollutant Discharge Elimination System (IPDES) permits for the Hayden Area Regional Sewer Board and the cities of Post Falls and Coeur d’Alene.
The draft IPDES permits each allow discharging to the Spokane River in Idaho and incorporate modifications from a settlement agreement between DEQ and the Hayden Area Regional Sewer Board. The permits also identify the pollutants of concern and specify associated discharge limits and monitoring and reporting requirements necessary to ensure compliance and protect human health and the environment.
Written comments on the draft permits and fact sheets will be accepted through August 4, 2025, at 5 p.m. MST. The draft permit and fact sheet are available for public review at DEQ’s state office (1410 N. Hilton Street, Boise, Idaho 83706), DEQ’s Coeur d’ Alene Regional Office (2110 Ironwood Parkway, Coeur d’Alene, Idaho 838142), and on DEQ’s website. A public meeting may be held, if requested in writing, by July 17, 2025.
Comments should address water quality considerations and include supporting materials where available. Comments should also reference the Hayden Area Regional Sewer Board and permit number (ID0026590), city of Coeur d’Alene and permit number (ID0022853), or city of Post Falls and permit number (ID0025852).
Submit comments or a request for a public meeting electronically using the form below or by mail or email to Matt Stutzman:
Matt Stutzman
Idaho Department of Environmental Quality
Surface and Wastewater Division
1410 N. Hilton St.
Boise, ID 83706
matthew.stutzman@deq.idaho.gov
Related Documents
Draft permit materials