NPDES ID: OH0054526
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: 8 effluent violations.
Violations
May 31, 2026
Nitrogen, ammonia total [as N]
12% over limit
Discharged 3.36 mg/L against a permitted limit of 3 mg/L (WKLY MAX)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
49% over limit
Discharged 1.49 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
3% over limit
Discharged 1.54 mg/L against a permitted limit of 1.5 mg/L (WKLY MAX)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
42% over limit
Discharged 0.439 kg/d against a permitted limit of 0.31 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
22% over limit
Discharged 0.563 kg/d against a permitted limit of 0.46 kg/d (WKLY MAX)
DMR, Limited - Numeric Violation
April 30, 2026
Phosphorus, total [as P]
115% over limit
Discharged 0.989 kg/d against a permitted limit of 0.46 kg/d (WKLY MAX)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
130% over limit
Discharged 0.713 kg/d against a permitted limit of 0.31 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
32% over limit
Discharged 1.32 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2026
Phosphorus, total [as P]
151% over limit
Discharged 0.778 kg/d against a permitted limit of 0.31 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
14% over limit
Discharged 1.14 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
100% over limit
Discharged 0.919 kg/d against a permitted limit of 0.46 kg/d (WKLY MAX)
DMR, Limited - Numeric Violation
February 28, 2026
Phosphorus, total [as P]
3% over limit
Discharged 0.32 kg/d against a permitted limit of 0.31 kg/d (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2026
Phosphorus, total [as P]
12% over limit
Discharged 1.12 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2025
Phosphorus, total [as P]
13% over limit
Discharged 0.35 kg/d against a permitted limit of 0.31 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
44% over limit
Discharged 1.44 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2025
Phosphorus, total [as P]
55% over limit
Discharged 1.55 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
58% over limit
Discharged 2.37 mg/L against a permitted limit of 1.5 mg/L (WKLY MAX)
DMR, Limited - Numeric Violation
Solids, total suspended
17% over limit
Discharged 14 mg/L against a permitted limit of 12 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
83% over limit
Discharged 33 mg/L against a permitted limit of 18 mg/L (WKLY MAX)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
40% over limit
Discharged 21 mg/L against a permitted limit of 15 mg/L (WKLY MAX)
DMR, Limited - Numeric Violation
October 31, 2025
Phosphorus, total [as P]
18% over limit
Discharged 0.366 kg/d against a permitted limit of 0.31 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
37% over limit
Discharged 2.06 mg/L against a permitted limit of 1.5 mg/L (WKLY MAX)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
78% over limit
Discharged 1.78 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2025
Phosphorus, total [as P]
17% over limit
Discharged 1.17 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
August 31, 2025
E. coli, MTEC-MF
1055% over limit
Discharged 3280 MPN/100mL against a permitted limit of 284 MPN/100mL (WK GEOMN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
103% over limit
Discharged 6.09 mg/L against a permitted limit of 3 mg/L (WKLY MAX)
DMR, Limited - Numeric Violation
E. coli, MTEC-MF
2503% over limit
Discharged 3280 MPN/100mL against a permitted limit of 126 MPN/100mL (MO GEOMN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
53% over limit
Discharged 3.05 mg/L against a permitted limit of 2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
5% over limit
Discharged 5.7 mg/L against a permitted limit of 6 mg/L (DAILY MN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
33% over limit
Discharged 1.22 kg/d against a permitted limit of 0.92 kg/d (WKLY MAX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
0% over limit
Discharged 0.611 kg/d against a permitted limit of 0.61 kg/d (MO AVG)
DMR, Limited - Numeric Violation
July 31, 2025
Nitrogen, ammonia total [as N]
40% over limit
Discharged 0.851 kg/d against a permitted limit of 0.61 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
46% over limit
Discharged 2.92 mg/L against a permitted limit of 2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
10% over limit
Discharged 3.3 mg/L against a permitted limit of 3 mg/L (WKLY MAX)
DMR, Limited - Numeric Violation
E. coli, MTEC-MF
5358% over limit
Discharged 15500 MPN/100mL against a permitted limit of 284 MPN/100mL (WK GEOMN)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
48% over limit
Discharged 3.1 mg/L against a permitted limit of 6 mg/L (DAILY MN)
DMR, Limited - Numeric Violation
June 30, 2025
E. coli, MTEC-MF
2210% over limit
Discharged 2910 MPN/100mL against a permitted limit of 126 MPN/100mL (MO GEOMN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
39% over limit
Discharged 4.16 mg/L against a permitted limit of 3 mg/L (WKLY MAX)
DMR, Limited - Numeric Violation
E. coli, MTEC-MF
925% over limit
Discharged 2910 MPN/100mL against a permitted limit of 284 MPN/100mL (WK GEOMN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
76% over limit
Discharged 3.52 mg/L against a permitted limit of 2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
63% over limit
Discharged 1.5 kg/d against a permitted limit of 0.92 kg/d (WKLY MAX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
128% over limit
Discharged 1.39 kg/d against a permitted limit of 0.61 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
43% over limit
Discharged 7.9 kg/d against a permitted limit of 5.53 kg/d (WKLY MAX)
DMR, Limited - Numeric Violation
May 31, 2025
Solids, total suspended
17% over limit
Discharged 4.3 kg/d against a permitted limit of 3.68 kg/d (MO AVG)
DMR, Limited - Numeric Violation
E. coli, MTEC-MF
63% over limit
Discharged 464 MPN/100mL against a permitted limit of 284 MPN/100mL (WK GEOMN)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
58% over limit
Discharged 0.727 kg/d against a permitted limit of 0.46 kg/d (WKLY MAX)
DMR, Limited - Numeric Violation
E. coli, MTEC-MF
268% over limit
Discharged 464 MPN/100mL against a permitted limit of 126 MPN/100mL (MO GEOMN)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
57% over limit
Discharged 2.6 mg/L against a permitted limit of 6 mg/L (DAILY MN)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
68% over limit
Discharged 0.52 kg/d against a permitted limit of 0.31 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
37% over limit
Discharged 7.6 kg/d against a permitted limit of 5.53 kg/d (WKLY MAX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
220% over limit
Discharged 2.94 kg/d against a permitted limit of 0.92 kg/d (WKLY MAX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
67% over limit
Discharged 5.01 mg/L against a permitted limit of 3 mg/L (WKLY MAX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
164% over limit
Discharged 1.61 kg/d against a permitted limit of 0.61 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
35% over limit
Discharged 2.69 mg/L against a permitted limit of 2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
April 30, 2025
Solids, total suspended
17% over limit
Discharged 21 mg/L against a permitted limit of 18 mg/L (WKLY MAX)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
55% over limit
Discharged 0.48 kg/d against a permitted limit of 0.31 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
11% over limit
Discharged 4.1 kg/d against a permitted limit of 3.68 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
59% over limit
Discharged 8.8 kg/d against a permitted limit of 5.53 kg/d (WKLY MAX)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
76% over limit
Discharged 0.81 kg/d against a permitted limit of 0.46 kg/d (WKLY MAX)
DMR, Limited - Numeric Violation
March 31, 2025
Phosphorus, total [as P]
50% over limit
Discharged 0.69 kg/d against a permitted limit of 0.46 kg/d (WKLY MAX)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
29% over limit
Discharged 0.4 kg/d against a permitted limit of 0.31 kg/d (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2024
Phosphorus, total [as P]
36% over limit
Discharged 1.36 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
129% over limit
Discharged 32 mg/L against a permitted limit of 13.99 mg/L (WKLY MAX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
11% over limit
Discharged 3.165 kg/d against a permitted limit of 2.86 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
170% over limit
Discharged 25.21 mg/L against a permitted limit of 9.33 mg/L (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2024
Phosphorus, total [as P]
10% over limit
Discharged 1.1 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
October 31, 2024
Nitrogen, ammonia total [as N]
32% over limit
Discharged 1.21 kg/d against a permitted limit of 0.92 kg/d (WKLY MAX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
243% over limit
Discharged 10.3 mg/L against a permitted limit of 3 mg/L (WKLY MAX)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
272% over limit
Discharged 3.72 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
158% over limit
Discharged 5.15 mg/L against a permitted limit of 2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
111% over limit
Discharged 0.971 kg/d against a permitted limit of 0.46 kg/d (WKLY MAX)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
68% over limit
Discharged 0.521 kg/d against a permitted limit of 0.31 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
339% over limit
Discharged 6.58 mg/L against a permitted limit of 1.5 mg/L (WKLY MAX)
DMR, Limited - Numeric Violation
September 30, 2024
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
August 31, 2024
Phosphorus, total [as P]
51% over limit
Discharged 1.51 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
319% over limit
Discharged 12.58 mg/L against a permitted limit of 3 mg/L (WKLY MAX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
215% over limit
Discharged 6.29 mg/L against a permitted limit of 2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
102% over limit
Discharged 1.857 kg/d against a permitted limit of 0.92 kg/d (WKLY MAX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
52% over limit
Discharged 0.9285 kg/d against a permitted limit of 0.61 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
29% over limit
Discharged 1.93 mg/L against a permitted limit of 1.5 mg/L (WKLY MAX)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)