NPDES ID: MO0130656
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]
919% over limit
Discharged 21.4 mg/L against a permitted limit of 2.1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
1276% over limit
Discharged 6.88 mg/L against a permitted limit of 0.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
96% over limit
Discharged 21.4 mg/L against a permitted limit of 10.9 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
December 31, 2025
Nitrogen, ammonia total [as N]
77% over limit
Discharged 19.3 mg/L against a permitted limit of 10.9 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
1310% over limit
Discharged 7.05 mg/L against a permitted limit of 0.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
819% over limit
Discharged 19.3 mg/L against a permitted limit of 2.1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2025
Nitrogen, ammonia total [as N]
4717% over limit
Discharged 57.8 mg/L against a permitted limit of 1.2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
863% over limit
Discharged 57.8 mg/L against a permitted limit of 6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
1434% over limit
Discharged 7.67 mg/L against a permitted limit of 0.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
June 30, 2025
Phosphorus, total [as P]
1416% over limit
Discharged 7.58 mg/L against a permitted limit of 0.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
2983% over limit
Discharged 37 mg/L against a permitted limit of 1.2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
517% over limit
Discharged 37 mg/L against a permitted limit of 6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
E. coli
321% over limit
Discharged 530 MPN/100mL against a permitted limit of 126 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
March 31, 2025
BOD, 5-day, 20 deg. C
38% over limit
Discharged 13.8 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
874% over limit
Discharged 4.87 mg/L against a permitted limit of 0.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli
1821% over limit
Discharged 2420 MPN/100mL against a permitted limit of 126 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
111% over limit
Discharged 23 mg/L against a permitted limit of 10.9 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
80% over limit
Discharged 27 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
400% over limit
Discharged 10.5 mg/L against a permitted limit of 2.1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2024
Phosphorus, total [as P]
1402% over limit
Discharged 7.51 mg/L against a permitted limit of 0.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli
1805% over limit
Discharged 2400 MPN/100mL against a permitted limit of 126 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
124% over limit
Discharged 4.7 mg/L against a permitted limit of 2.1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2024
Phosphorus, total [as P]
1144% over limit
Discharged 6.22 mg/L against a permitted limit of 0.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
225% over limit
Discharged 3.9 mg/L against a permitted limit of 1.2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)