EPA v. CITY OF KAMIAH - ACO (CWA NPDES)

Case summary

On August 4, 2026, Region 10 issued an Administrative Order on Consent to the City of Kamiah for its wastewater treatment facility located in Kamiah, Idaho. The order will require the City to conduct additional oversight of its pH monitoring required by the facility's NPDES Permit. The City of Kamiah wastewater treatment facility is located on the Nez Perce Reservation and discharges into the Clearwater River, a perennial tributary of the Snake River. The Clearwater River is a high-quality water body by State standards and has designated uses including cold water aquatic life, primary contact recreation, domestic water supply, and salmonid spawning. The City's oversight will help the facility improve its treatment processes and limit future discharge of pollutants.

Defendants (1)

• CITY OF KAMIAHNamed in complaintNamed in settlement

Facilities (1)

• KAMIAH, CITY OF - KAMIAH WWTP

  1775 LAGUNA DRIVE, KAMIAH, ID, 83536

  Registry ID: 110039886308

Statutes cited

• CWA 301/402 — NPDES Permit Violations

Enforcement conclusions (1)

• CITY OF KAMIAH - ACO (CWA NPDES)entered 2026-08-04

  Primary law: CWA

Timeline (3 milestones)

• 2026-04-24Enforcement Action Data Entered
• 2026-08-04Final Order Issued
• 2026-08-04Complaint Filed/Proposed Order