DEQ seeks comment on industrial discharge permit for Idahoan Foods, LLC

Accepting comments from May 6, 2025, through June 5, 2025.

The Idaho Department of Environmental Quality (DEQ) seeks comment on an industrial discharge permit for Idahoan Foods, LLC.

The facility, located in Rupert, Idaho, discharges industrial process wastewater to the city of Rupert’s publicly owned treatment works (POTW). DEQ has determined that Idahoan Foods meets the definition of a Significant Industrial User and is subject to pretreatment requirements per 40 CFR 403.

The “Idaho Pollutant Discharge Elimination System Rules” (IDAPA 58.01.25) allow DEQ to assume responsibility for implementing pretreatment program requirements in lieu of requiring the publicly owned treatment works to develop one. DEQ has elected to assume responsibility for permitting Idahoan Foods in lieu of the city. 

The permit requires Idahoan’s industrial discharge to meet pollutant limits as required by the most recent Rupert Wastewater Rate Agreement and requires routine sampling of the discharge and reporting to both the city and DEQ. 

The draft permit is available for public review at DEQ’s State Office (1410 N. Hilton St.) and on DEQ’s website. Written comments will be accepted through June 5, 2025, at 5 p.m. MST. Submit comments electronically using the form below or by mail or email to: 

Terry Alber 
Biosolids and Pretreatment Analyst 
DEQ State Office 
1410 N Hilton St 
Boise ID 83706 
terry.alber@deq.idaho.gov 

Related Documents

Draft Industrial Discharge Permit

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/.