NPDES ID: OH0020206
E — SNC: Effluent violation (monthly average limit)
The facility discharged more of a pollutant than its permit allows, based on a monthly average.
Violations
March 31, 2026
Nitrogen, ammonia total [as N]
159% over limit
Discharged 5.17 mg/L against a permitted limit of 2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
228% over limit
Discharged 9.85 mg/L against a permitted limit of 3 mg/L (WKLY MAX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
180% over limit
Discharged 19.3 kg/d against a permitted limit of 6.9 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
330% over limit
Discharged 43 kg/d against a permitted limit of 10 kg/d (WKLY MAX)
DMR, Limited - Numeric Violation
Mercury, total low level
15% over limit
Discharged 0.00000196 mg/L against a permitted limit of 0.0000017 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2026
Nitrogen, ammonia total [as N]
178% over limit
Discharged 27.8 kg/d against a permitted limit of 10 kg/d (WKLY MAX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
187% over limit
Discharged 19.8 kg/d against a permitted limit of 6.9 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
390% over limit
Discharged 9.8 mg/L against a permitted limit of 2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
327% over limit
Discharged 12.8 mg/L against a permitted limit of 3 mg/L (WKLY MAX)
DMR, Limited - Numeric Violation
January 31, 2026
Nitrogen, ammonia total [as N]
66% over limit
Discharged 3.32 mg/L against a permitted limit of 2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
36% over limit
Discharged 13.6 kg/d against a permitted limit of 10 kg/d (WKLY MAX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
175% over limit
Discharged 8.26 mg/L against a permitted limit of 3 mg/L (WKLY MAX)
DMR, Limited - Numeric Violation
December 31, 2025
Phosphorus, total [as P]
25% over limit
Discharged 1.88 mg/L against a permitted limit of 1.5 mg/L (WKLY MAX)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
19% over limit
Discharged 1.19 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2025
Phosphorus, total [as P]
178% over limit
Discharged 9.45 kg/d against a permitted limit of 3.4 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
83% over limit
Discharged 9.53 kg/d against a permitted limit of 5.2 kg/d (WKLY MAX)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
298% over limit
Discharged 5.97 mg/L against a permitted limit of 1.5 mg/L (WKLY MAX)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
443% over limit
Discharged 5.43 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
October 31, 2025
Phosphorus, total [as P]
4% over limit
Discharged 1.04 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
May 31, 2025
Phosphorus, total [as P]
27% over limit
Discharged 6.61 kg/d against a permitted limit of 5.2 kg/d (WKLY MAX)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
81% over limit
Discharged 6.16 kg/d against a permitted limit of 3.4 kg/d (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)