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Public Notice: Proposed permit for Kamiah Water Treatment Plant on the Nez Perce Reservation

Proposed permit for Kamiah Water Treatment Plant on the Nez Perce Reservation
How to Comment
Comments Due
February 5, 2026

Please submit all comments or requests for a public hearing by email to EPAR10WD-NPDES@epa.gov (please include "Comments on draft permit ID0028461" in the subject line.

If you are not able to submit comments by email, please call Hunter Whitten at 208-378-5772.

All comments should include the name, address and telephone number of the commenter, and a short statement of the basis of any comment and the relevant facts upon which it is based.

Requests for a public hearing must include the nature of the issues to be raised, as well as the requester's name, address and telephone number. Comments must be received within the comment period to be considered.


For questions, please contact Hunter Whitten (whitten.hunter@epa.gov), 208-378-5772.

Publish Date
January 6, 2026

Summary

EPA is proposing to reissue a National Pollutant Discharge Elimination System (NPDES) permit for the City of Kamiah Water Treatment Plant located on the Nez Perce Reservation in Idaho.

The draft permit places conditions on the discharge of pollutants from the treatment plant into waters of the United States. In order to ensure protection of water quality and human health, the permit places limits on the types and amounts of pollutants that can be discharged from the facility.

The city of Kamiah owns and operates the water treatment plant which provides drinking water services to a resident population of 2,000.

The facility discharges to the Clearwater River within the boundaries of the Nez Perce Reservation.

Applicant

City of Kamiah
P.O. Box 338
Kamiah, ID  83536

Permit number: ID0028461

Water quality certification

Section 401 of the Clean Water Act requires applicants for federal licenses or permits to conduct any activity which may result in a discharge into waters of the United States to obtain a certification or waiver from the certifying authority where the discharge originates.

Since this facility discharges to Nez Perce Tribal waters and the Tribe has not been approved for Treatment as a State from the EPA for purposes of the Clean Water Act for these waters, EPA is making the certification decision for this permit.

A draft 401 certification is included in Appendix E of the Fact Sheet (see "administrative record" below).

Comments regarding EPA's intent to certify the permit should be sent by email to EPAR10WD-NPDES@epa.gov (please include "Comments on EPA's intent to certify draft permit ID0028461" in the subject line.
 

Neighboring jurisdictions

Clean Water Act Section 401(a)(2), more commonly known as the neighboring jurisdiction process, requires EPA to notify a neighboring state or authorized Tribe (i.e., neighboring jurisdiction) when the discharge may affect the quality of the neighboring jurisdiction’s waters.

As stated above, EPA is the certifying authority for this permit. Once EPA reviews any comments received regarding the intent to certify, and after the final certification is signed, EPA will determine whether the discharge may affect the quality of a neighboring jurisdiction’s waters.

Administrative record

Copies of the draft permit and supporting documents are available below:

  • Draft NPDES Permit, Kamiah Water Treatment Plant, Idaho, #ID0028461 (pdf) (421.44 KB, January 2026)
    EPA's proposed permit.
  • NPDES Permit Fact Sheet, Kamiah Water Treatment Plant, Idaho, #ID0028461 (pdf) (1.19 MB, January 2026)
    Technical basis for draft permit.

A copy of the current permit is also available online at NPDES permit for Kamiah Water Treatment Plant.

A copy of the facility's application and other information may be requested by contacting Hunter Whitten (whitten.hunter@epa.gov), 208-378-5772.

Accessibility accommodations and services

If you require accessibility accommodations related to this public notice, please contact Hunter Whitten (whitten.hunter@epa.gov), 208-378-5772, at least one week before the end of comment period.

Contact us about NPDES permits around the nation to ask a question, provide feedback, or report a problem.
Last updated on January 6, 2026
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