NPDES ID: MO0101788
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]
657% over limit
Discharged 15.9 mg/L against a permitted limit of 2.1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
184% over limit
Discharged 15.9 mg/L against a permitted limit of 5.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
February 28, 2026
pH
0% over limit
Discharged 9.3 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Numeric Violation
December 31, 2025
Solids, total suspended
59% over limit
Discharged 34.9 mg/L against a permitted limit of 22 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
190% over limit
Discharged 6.1 mg/L against a permitted limit of 2.1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
6% over limit
Discharged 34.9 mg/L against a permitted limit of 33 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
45% over limit
Discharged 8.1 mg/L against a permitted limit of 5.6 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
September 30, 2025
Nitrogen, ammonia total [as N]
62% over limit
Discharged 2.75 mg/L against a permitted limit of 1.7 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
198% over limit
Discharged 1.79 mg/L against a permitted limit of 0.6 mg/L (MO AVG)
DMR, Limited - Numeric Violation
June 30, 2025
Nitrogen, ammonia total [as N]
84% over limit
Discharged 3.12 mg/L against a permitted limit of 1.7 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
25% over limit
Discharged 27.4 mg/L against a permitted limit of 22 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
100% over limit
Discharged 1.2 mg/L against a permitted limit of 0.6 mg/L (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2025
Solids, total suspended
20% over limit
Discharged 26.3 mg/L against a permitted limit of 22 mg/L (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2025
Solids, total suspended
253% over limit
Discharged 282 mg/L against a permitted limit of 80 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
135% over limit
Discharged 282 mg/L against a permitted limit of 120 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
December 31, 2024
Solids, total suspended
48% over limit
Discharged 118 mg/L against a permitted limit of 80 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
18% over limit
Discharged 26 mg/L against a permitted limit of 22 mg/L (MO AVG)
DMR, Limited - Numeric Violation
October 31, 2024
Toxicity [acute], Pimephales promelas [Fathead Minnow]
0% over limit
Discharged 1 toxic against a permitted limit of 0 toxic (DAILY MX)
DMR, Monitor Only - Overdue
Toxicity [acute], Ceriodaphnia dubia
0% over limit
Discharged 1 toxic against a permitted limit of 0 toxic (DAILY MX)
DMR, Monitor Only - Overdue
September 30, 2024
Solids, total suspended
85% over limit
Discharged 148 mg/L against a permitted limit of 80 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
23% over limit
Discharged 148 mg/L against a permitted limit of 120 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (24 days ago)