MUDDY CREEK WASTEWATER TREATMENT PLANT
NPDES ID: OH0025470
S — SNC: Compliance schedule violation
The facility missed a deadline in its compliance schedule by more than 90 days.
This quarter: 1 effluent violation.
Violations
April 30, 2026
BOD, carbonaceous [5 day, 20 C]
8% over limit
Discharged 26 mg/L against a permitted limit of 24 mg/L (WKLY MAX)
DMR, Limited - Numeric Violation
August 31, 2025
Toxicity [acute], Pimephales promelas [Fathead Minnow]
0% over limit
Discharged 0 toxic against a permitted limit of 0 toxic (MO AVG)
DMR, Monitor Only - Overdue
%Effect Static Renewal 96Hr Acute Pimephales promelas
0% over limit
Discharged 0 % against a permitted limit of 0 % (MO AVG)
DMR, Monitor Only - Overdue
Toxicity [acute], Pimephales promelas [Fathead Minnow]
0% over limit
Discharged 0 toxic against a permitted limit of 0 toxic (DAILY MX)
DMR, Monitor Only - Overdue
%Effect Static Renewal 96Hr Acute Pimephales promelas
0% over limit
Discharged 0 % against a permitted limit of 0 % (DAILY MX)
DMR, Monitor Only - Overdue
June 30, 2025
E. coli, MTEC-MF
17% over limit
Discharged 281.5 MPN/100mL against a permitted limit of 240 MPN/100mL (WK GEOMN)
DMR, Limited - Numeric Violation
March 31, 2025
Chromium, hexavalent dissolved [as Cr]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Cyanide, total [as CN]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Chromium, hexavalent dissolved [as Cr]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Chromium, hexavalent dissolved [as Cr]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Cyanide, total [as CN]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Chromium, hexavalent dissolved [as Cr]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
September 30, 2024
Solids, total suspended
18% over limit
Discharged 40 mg/L against a permitted limit of 34 mg/L (WKLY MAX)
DMR, Limited - Numeric Violation
E. coli, MTEC-MF
58% over limit
Discharged 380 MPN/100mL against a permitted limit of 240 MPN/100mL (WK GEOMN)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)