NPDES ID: OKP003068
E — SNC: Effluent violation (monthly average limit)
The facility discharged more of a pollutant than its permit allows, based on a monthly average.
This quarter: 6 effluent violations, 1 permit schedule violation.
Violations
June 30, 2026
Chloride [as Cl]
21% over limit
Discharged 850 mg/L against a permitted limit of 700 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total dissolved- 180 deg. C
35% over limit
Discharged 3225 mg/L against a permitted limit of 2387 mg/L (MO AVG)
DMR, Limited - Numeric Violation
May 31, 2026
Chloride [as Cl]
29% over limit
Discharged 900 mg/L against a permitted limit of 700 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total dissolved- 180 deg. C
13% over limit
Discharged 2694 mg/L against a permitted limit of 2387 mg/L (MO AVG)
DMR, Limited - Numeric Violation
April 30, 2026
Chloride [as Cl]
29% over limit
Discharged 900 mg/L against a permitted limit of 700 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total dissolved- 180 deg. C
15% over limit
Discharged 2755 mg/L against a permitted limit of 2387 mg/L (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2026
Chloride [as Cl]
57% over limit
Discharged 1100 mg/L against a permitted limit of 700 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total dissolved- 180 deg. C
5% over limit
Discharged 2845.21797609 kg/d against a permitted limit of 2711.28797722 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Chloride [as Cl]
17% over limit
Discharged 927.9759922 kg/d against a permitted limit of 794.954 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total dissolved- 180 deg. C
41% over limit
Discharged 3373 mg/L against a permitted limit of 2387 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2026
Chloride [as Cl]
57% over limit
Discharged 1100 mg/L against a permitted limit of 700 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Chloride [as Cl]
14% over limit
Discharged 908.45399237 kg/d against a permitted limit of 794.954 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total dissolved- 180 deg. C
25% over limit
Discharged 2986 mg/L against a permitted limit of 2387 mg/L (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2026
Chloride [as Cl]
14% over limit
Discharged 800 mg/L against a permitted limit of 700 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total dissolved- 180 deg. C
45% over limit
Discharged 3460 mg/L against a permitted limit of 2387 mg/L (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2025
Nitrogen, total [as N]
58% over limit
Discharged 30 mg/L against a permitted limit of 19 mg/L (MO AVG)
DMR, Limited - Numeric Violation
August 31, 2025
Solids, total dissolved- 180 deg. C
0% over limit
Discharged 2390 mg/L against a permitted limit of 2387 mg/L (MO AVG)
DMR, Limited - Numeric Violation
June 30, 2025
Chloride [as Cl]
36% over limit
Discharged 950 mg/L against a permitted limit of 700 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total dissolved- 180 deg. C
89% over limit
Discharged 5123.38995695 kg/d against a permitted limit of 2711.28797722 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total dissolved- 180 deg. C
59% over limit
Discharged 3789 mg/L against a permitted limit of 2387 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Chloride [as Cl]
62% over limit
Discharged 1284.36598921 kg/d against a permitted limit of 794.954 kg/d (MO AVG)
DMR, Limited - Numeric Violation
May 31, 2025
Chloride [as Cl]
18% over limit
Discharged 825 mg/L against a permitted limit of 700 mg/L (MO AVG)
DMR, Limited - Numeric Violation
April 30, 2025
Solids, total dissolved- 180 deg. C
28% over limit
Discharged 3054 mg/L against a permitted limit of 2387 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total dissolved- 180 deg. C
46% over limit
Discharged 3946.62196684 kg/d against a permitted limit of 2711.28797722 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Chloride [as Cl]
54% over limit
Discharged 1227.61598969 kg/d against a permitted limit of 794.954 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Chloride [as Cl]
36% over limit
Discharged 950 mg/L against a permitted limit of 700 mg/L (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2024
Nitrogen, total [as N]
25% over limit
Discharged 23.7 mg/L against a permitted limit of 19 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, total [as N]
13% over limit
Discharged 24.69759979 kg/d against a permitted limit of 21.792 kg/d (MO AVG)
DMR, Limited - Numeric Violation
August 31, 2024
Nitrogen, total [as N]
2% over limit
Discharged 19.3 mg/L against a permitted limit of 19 mg/L (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 15, 2026 (8 hours ago)