CHICKASHA MUNICIPAL AUTHORITY

NPDES ID: OK0026018

S — SNC: Compliance schedule violation

The facility missed a deadline in its compliance schedule by more than 90 days.

This quarter: 1 compliance schedule violation.

Violations

March 31, 2026

Nitrogen, ammonia total [as N]

33% over limit

Discharged 15.9 mg/L against a permitted limit of 12 mg/L (WKLY AVG)

DMR, Limited - Numeric Violation

First flagged

April 14, 2026 (5 months ago)

Last confirmed

September 15, 2026 (5 days ago)