Accepting Comments from July 8, 2026, to August 7, 2026
The Idaho Department of Environmental Quality (DEQ) seeks comment on a draft Idaho Pollutant Discharge Elimination System (IPDES) permit for the Perpetua Resources Idaho, Inc. – Stibnite Gold Project Worker Housing Wastewater Treatment Facility.
Perpetua Resources Idaho, Inc. applied for a wastewater discharge permit for its wastewater treatment facility, located at Thunder Mountain Rd Stibnite Valley, Idaho 83677.
The draft permit would authorize the discharge of treated domestic wastewater year-round to the East Fork South Fork Salmon River for 5 years. The permit identifies the pollutants of concern, 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 St.), DEQ’s Boise Regional Office (1445 N. Orchard St., Boise, ID), and on DEQ’s website.
Written comments on the draft permit and fact sheet will be accepted through Friday August 7, 2026, at 5 p.m. Mountain Time. A public meeting may be held, if requested in writing, by Wednesday July 22, 2026. Comments should address water quality considerations and include supporting materials where available. Comments should also reference Perpetua Resources Idaho, Inc. and permit number (ID0030082).
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
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/.
Official Government Website
DEQ seeks comment on draft IPDES permit for the Perpetua Resources Idaho, Inc. Stibnite Gold Project Worker Housing Wastewater Treatment Facility
Accepting Comments from July 8, 2026, to August 7, 2026
The Idaho Department of Environmental Quality (DEQ) seeks comment on a draft Idaho Pollutant Discharge Elimination System (IPDES) permit for the Perpetua Resources Idaho, Inc. – Stibnite Gold Project Worker Housing Wastewater Treatment Facility.
Perpetua Resources Idaho, Inc. applied for a wastewater discharge permit for its wastewater treatment facility, located at Thunder Mountain Rd Stibnite Valley, Idaho 83677.
The draft permit would authorize the discharge of treated domestic wastewater year-round to the East Fork South Fork Salmon River for 5 years. The permit identifies the pollutants of concern, 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 St.), DEQ’s Boise Regional Office (1445 N. Orchard St., Boise, ID), and on DEQ’s website.
Written comments on the draft permit and fact sheet will be accepted through Friday August 7, 2026, at 5 p.m. Mountain Time. A public meeting may be held, if requested in writing, by Wednesday July 22, 2026. Comments should address water quality considerations and include supporting materials where available. Comments should also reference Perpetua Resources Idaho, Inc. and permit number (ID0030082).
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
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/.
Public Comment Form