Category: Public Comment
DEQ seeks comment on draft IPDES permit for Stibnite Gold Project
Accepting comments from June 6, 2025, through July 7, 2025.
The Idaho Department of Environmental Quality (DEQ) seeks comment on a draft Idaho Pollutant Discharge Elimination System (IPDES) permit for the Stibnite Gold Project.
Perpetua Resources Idaho, Inc. 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 7, 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 draft 401 water quality certification for Kilpatrick Bridge replacement project
Accepting comments from June 5, 2025, through June 26, 2025.
BOISE – The Idaho Department of Environmental Quality (DEQ) is seeking comment on a draft water quality certification for the Kilpatrick Bridge replacement project.
The purpose of the project is to replace the existing Kilpatrick Bridge (Key No. 22432) with a new structure, addressing its undersized design and end-of-life condition. The new bridge will feature an extended 105-foot span, an increase from the current 65 feet, to fully span the Silver Creek channel, improving hydrologic conditions and facilitating fish and aquatic organism passage.
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 June 26, 2025, at 5 p.m. Mountain Time. Submit comments electronically using the form below or by mail or email to:
Jake Barnes
650 Addison Ave. W., Ste. 110
Twin Falls, ID 83301
jake.barnes@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/.
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 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/.