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/.
Official Government Website
Official Government Website
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/.
Public Comment Form