NPDES ID: OKP003091
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
pH
0% over limit
Discharged 11.81 SU against a permitted limit of 11 SU (MAXIMUM)
DMR, Limited - Numeric Violation
January 31, 2026
Oil and grease, hexane extr method
5% over limit
Discharged 157.7 mg/L against a permitted limit of 150 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
September 30, 2025
pH
0% over limit
Discharged 3.23 SU against a permitted limit of 5 SU (MINIMUM)
DMR, Limited - Numeric Violation
August 31, 2025
Oil and grease, hexane extr method
48% over limit
Discharged 221.4 mg/L against a permitted limit of 150 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
June 30, 2025
Oil and grease, hexane extr method
64% over limit
Discharged 246.6 mg/L against a permitted limit of 150 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
May 31, 2025
Oil and grease, hexane extr method
43% over limit
Discharged 214.4 mg/L against a permitted limit of 150 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (5 months ago)
Last confirmed
September 15, 2026 (5 days ago)