NEW RICHMOND WWTP
NPDES ID: OH0021156
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]
25% over limit
Discharged 6.36 mg/L against a permitted limit of 5.1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
39% over limit
Discharged 10.7 mg/L against a permitted limit of 7.7 mg/L (WKLY MAX)
DMR, Limited - Numeric Violation
April 30, 2026
Solids, total suspended
34% over limit
Discharged 22.7 mg/L against a permitted limit of 17 mg/L (MO AVG)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 74 SU against a permitted limit of 9 SU (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
123% over limit
Discharged 21.9 mg/L against a permitted limit of 9.8 mg/L (WKLY MAX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
103% over limit
Discharged 13.2 mg/L against a permitted limit of 6.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
4% over limit
Discharged 56.3 kg/d against a permitted limit of 54.2 kg/d (WKLY MAX)
DMR, Limited - Numeric Violation
Solids, total suspended
143% over limit
Discharged 63.1 mg/L against a permitted limit of 26 mg/L (WKLY MAX)
DMR, Limited - Numeric Violation
March 31, 2026
Solids, total suspended
597% over limit
Discharged 378 kg/d against a permitted limit of 54.2 kg/d (WKLY MAX)
DMR, Limited - Numeric Violation
Solids, total suspended
182% over limit
Discharged 99.7 kg/d against a permitted limit of 35.4 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
29% over limit
Discharged 22 mg/L against a permitted limit of 17 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
182% over limit
Discharged 73.4 mg/L against a permitted limit of 26 mg/L (WKLY MAX)
DMR, Limited - Numeric Violation
February 28, 2026
pH
0% over limit
Discharged 0 SU against a permitted limit of 6.5 SU (DAILY MN)
DMR, Limited - Overdue
Copper, total recoverable
0% over limit
Discharged 0.068 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 0 mg/L against a permitted limit of 6.5 mg/L (MO AVG)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.285 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
Solids, total suspended
0% over limit
Discharged 198 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
BOD, carbonaceous [5 day, 20 C]
0% over limit
Discharged 5.72 mg/L against a permitted limit of 21 mg/L (WKLY MAX)
DMR, Limited - Overdue
Coliform, fecal MF, MFC broth, 44.5 C
0% over limit
Discharged 22 MPN/100mL against a permitted limit of 1000 MPN/100mL (MO GEOMN)
DMR, Limited - Overdue
Temperature, water deg. centigrade
0% over limit
Discharged 11 deg C against a permitted limit of 0 deg C (MO AVG)
DMR, Monitor Only - Overdue
Oxygen, dissolved [DO]
0% over limit
Discharged 5.4 mg/L against a permitted limit of 5 mg/L (DAILY MN)
DMR, Limited - Overdue
pH
0% over limit
Discharged 7.6 SU against a permitted limit of 9 SU (DAILY MX)
DMR, Limited - Overdue
Nitrogen, Kjeldahl, total [as N]
0% over limit
Discharged 1.81 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 7 SU against a permitted limit of 0 SU (DAILY MN)
DMR, Monitor Only - Overdue
Copper, total recoverable
0% over limit
Discharged 0.0091 kg/d against a permitted limit of 0.0708 kg/d (DAILY MX)
DMR, Limited - Overdue
Nitrite + Nitrate total [as N]
0% over limit
Discharged 18.3 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Overflows
0% over limit
Discharged 0 occur/d against a permitted limit of 0 occur/d (MO AVG)
DMR, Monitor Only - Overdue
Phosphorus, total [as P]
0% over limit
Discharged 2.43 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
BOD, carbonaceous [5 day, 20 C]
0% over limit
Discharged 0 kg/d against a permitted limit of 43.8 kg/d (WKLY MAX)
DMR, Limited - Overdue
Solids, total dissolved- 180 deg. C
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 0.486 mg/L against a permitted limit of 6.5 mg/L (MO AVG)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 0 mg/L against a permitted limit of 9.8 mg/L (WKLY MAX)
DMR, Limited - Overdue
Temperature, water deg. centigrade
0% over limit
Discharged 0 deg C against a permitted limit of 0 deg C (MO AVG)
DMR, Monitor Only - Overdue
Solids, total suspended
57% over limit
Discharged 40.8 mg/L against a permitted limit of 26 mg/L (WKLY MAX)
DMR, Limited - Overdue
Solids, total suspended
57% over limit
Discharged 40.8 mg/L against a permitted limit of 26 mg/L (WKLY MAX)
DMR, Limited - Numeric Violation
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 26 mg/L (WKLY MAX)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
BOD, carbonaceous [5 day, 20 C]
0% over limit
Discharged 0 kg/d against a permitted limit of 29.2 kg/d (MO AVG)
DMR, Limited - Overdue
Oil and grease, hexane extr method
0% over limit
Discharged 2.6 mg/L against a permitted limit of 10 mg/L (DAILY MX)
DMR, Limited - Overdue
Overflows
0% over limit
Discharged 0 occur/d against a permitted limit of 0 occur/d (DAILY MX)
DMR, Monitor Only - Overdue
Oxygen, dissolved [DO]
0% over limit
Discharged 0 mg/L against a permitted limit of 5 mg/L (DAILY MN)
DMR, Limited - Overdue
Copper, total recoverable
0% over limit
Discharged 0.068 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Copper, total recoverable
0% over limit
Discharged 0 mg/L against a permitted limit of 0.034 mg/L (DAILY MX)
DMR, Limited - Overdue
Solids, total dissolved- 180 deg. C
0% over limit
Discharged 572 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 0.378 kg/d against a permitted limit of 13.6 kg/d (MO AVG)
DMR, Limited - Overdue
Solids, total suspended
8% over limit
Discharged 18.3 mg/L against a permitted limit of 17 mg/L (MO AVG)
DMR, Limited - Overdue
Solids, total suspended
8% over limit
Discharged 18.3 mg/L against a permitted limit of 17 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total dissolved- 180 deg. C
0% over limit
Discharged 572 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Solids, total dissolved- 180 deg. C
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 0 kg/d against a permitted limit of 13.6 kg/d (MO AVG)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 0.692 mg/L against a permitted limit of 9.8 mg/L (WKLY MAX)
DMR, Limited - Overdue
BOD, carbonaceous [5 day, 20 C]
0% over limit
Discharged 123 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.896 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
Nitrogen, Kjeldahl, total [as N]
0% over limit
Discharged 1.81 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 7.1 SU against a permitted limit of 6.5 SU (DAILY MN)
DMR, Limited - Overdue
Phosphorus, total [as P]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Solids, total suspended
0% over limit
Discharged 0 kg/d against a permitted limit of 54.2 kg/d (WKLY MAX)
DMR, Limited - Overdue
BOD, carbonaceous [5 day, 20 C]
0% over limit
Discharged 3.56 mg/L against a permitted limit of 14 mg/L (MO AVG)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 0 kg/d against a permitted limit of 20.5 kg/d (WKLY MAX)
DMR, Limited - Overdue
Nitrogen, Kjeldahl, total [as N]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Coliform, fecal MF, MFC broth, 44.5 C
0% over limit
Discharged 55 MPN/100mL against a permitted limit of 2000 MPN/100mL (WK GEOMN)
DMR, Limited - Overdue
Phosphorus, total [as P]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Coliform, fecal MF, MFC broth, 44.5 C
0% over limit
Discharged 0 MPN/100mL against a permitted limit of 1000 MPN/100mL (MO GEOMN)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 96.2 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 7.9 SU against a permitted limit of 0 SU (DAILY MX)
DMR, Monitor Only - Overdue
BOD, carbonaceous [5 day, 20 C]
0% over limit
Discharged 2.68 kg/d against a permitted limit of 43.8 kg/d (WKLY MAX)
DMR, Limited - Overdue
Temperature, water deg. centigrade
0% over limit
Discharged 13 deg C against a permitted limit of 0 deg C (DAILY MX)
DMR, Monitor Only - Overdue
Nitrite + Nitrate total [as N]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 17 mg/L (MO AVG)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 14.6 kg/d against a permitted limit of 35.4 kg/d (MO AVG)
DMR, Limited - Overdue
Nitrogen, Kjeldahl, total [as N]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
Coliform, fecal MF, MFC broth, 44.5 C
0% over limit
Discharged 0 MPN/100mL against a permitted limit of 2000 MPN/100mL (WK GEOMN)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 9 SU (DAILY MX)
DMR, Limited - Overdue
BOD, carbonaceous [5 day, 20 C]
0% over limit
Discharged 0 mg/L against a permitted limit of 21 mg/L (WKLY MAX)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 27.5 kg/d against a permitted limit of 54.2 kg/d (WKLY MAX)
DMR, Limited - Overdue
Nitrite + Nitrate total [as N]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Copper, total recoverable
0% over limit
Discharged 0 kg/d against a permitted limit of 0.0708 kg/d (DAILY MX)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 0.641 kg/d against a permitted limit of 20.5 kg/d (WKLY MAX)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 kg/d against a permitted limit of 35.4 kg/d (MO AVG)
DMR, Limited - Overdue
BOD, carbonaceous [5 day, 20 C]
0% over limit
Discharged 165 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Phosphorus, total [as P]
0% over limit
Discharged 2.43 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Temperature, water deg. centigrade
0% over limit
Discharged 0 deg C against a permitted limit of 0 deg C (DAILY MX)
DMR, Monitor Only - Overdue
BOD, carbonaceous [5 day, 20 C]
0% over limit
Discharged 0 mg/L against a permitted limit of 14 mg/L (MO AVG)
DMR, Limited - Overdue
Nitrite + Nitrate total [as N]
0% over limit
Discharged 18.3 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Copper, total recoverable
0% over limit
Discharged 0.01 mg/L against a permitted limit of 0.034 mg/L (DAILY MX)
DMR, Limited - Overdue
BOD, carbonaceous [5 day, 20 C]
0% over limit
Discharged 2.03 kg/d against a permitted limit of 29.2 kg/d (MO AVG)
DMR, Limited - Overdue
Oil and grease, hexane extr method
0% over limit
Discharged 0 mg/L against a permitted limit of 10 mg/L (DAILY MX)
DMR, Limited - Overdue
January 31, 2026
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 26 mg/L (WKLY MAX)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 17 mg/L (MO AVG)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 kg/d against a permitted limit of 35.4 kg/d (MO AVG)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 kg/d against a permitted limit of 54.2 kg/d (WKLY MAX)
DMR, Limited - Overdue
BOD, carbonaceous [5 day, 20 C]
0% over limit
Discharged 0 kg/d against a permitted limit of 29.2 kg/d (MO AVG)
DMR, Limited - Overdue
Copper, total recoverable
0% over limit
Discharged 0 kg/d against a permitted limit of 0.0708 kg/d (DAILY MX)
DMR, Limited - Overdue
BOD, carbonaceous [5 day, 20 C]
0% over limit
Discharged 0 mg/L against a permitted limit of 21 mg/L (WKLY MAX)
DMR, Limited - Overdue
BOD, carbonaceous [5 day, 20 C]
0% over limit
Discharged 0 mg/L against a permitted limit of 14 mg/L (MO AVG)
DMR, Limited - Overdue
Copper, total recoverable
0% over limit
Discharged 0 mg/L against a permitted limit of 0.034 mg/L (DAILY MX)
DMR, Limited - Overdue
BOD, carbonaceous [5 day, 20 C]
0% over limit
Discharged 0 kg/d against a permitted limit of 43.8 kg/d (WKLY MAX)
DMR, Limited - Overdue
November 30, 2025
Solids, total suspended
28% over limit
Discharged 21.8 mg/L against a permitted limit of 17 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
25% over limit
Discharged 32.6 mg/L against a permitted limit of 26 mg/L (WKLY MAX)
DMR, Limited - Numeric Violation
July 31, 2025
Nitrogen, ammonia total [as N]
51% over limit
Discharged 7.7 mg/L against a permitted limit of 5.1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
36% over limit
Discharged 10.5 mg/L against a permitted limit of 7.7 mg/L (WKLY MAX)
DMR, Limited - Numeric Violation
E. coli, MTEC-MF
117% over limit
Discharged 520 MPN/100mL against a permitted limit of 240 MPN/100mL (WK GEOMN)
DMR, Limited - Numeric Violation
June 30, 2025
Nitrogen, ammonia total [as N]
18% over limit
Discharged 9.08 mg/L against a permitted limit of 7.7 mg/L (WKLY MAX)
DMR, Limited - Numeric Violation
October 31, 2024
Solids, total suspended
40% over limit
Discharged 36.5 mg/L against a permitted limit of 26 mg/L (WKLY MAX)
DMR, Limited - Numeric Violation
September 30, 2024
E. coli, MTEC-MF
8% over limit
Discharged 258 MPN/100mL against a permitted limit of 240 MPN/100mL (WK GEOMN)
DMR, Limited - Numeric Violation
July 31, 2024
E. coli, MTEC-MF
11% over limit
Discharged 140 MPN/100mL against a permitted limit of 126 MPN/100mL (MO GEOMN)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)