BELPRE WASTEWATER TREATMENT PLANT
NPDES ID: OH0020621
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
Solids, total suspended
287% over limit
Discharged 991 kg/d against a permitted limit of 256 kg/d (WKLY MAX)
DMR, Limited - Numeric Violation
Solids, total suspended
14% over limit
Discharged 34.2 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
200% over limit
Discharged 135 mg/L against a permitted limit of 45 mg/L (WKLY MAX)
DMR, Limited - Numeric Violation
Solids, total suspended
40% over limit
Discharged 239 kg/d against a permitted limit of 171 kg/d (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2026
Solids, total suspended
74% over limit
Discharged 52.2 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
201% over limit
Discharged 770 kg/d against a permitted limit of 256 kg/d (WKLY MAX)
DMR, Limited - Numeric Violation
Solids, total suspended
22% over limit
Discharged 208 kg/d against a permitted limit of 171 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
311% over limit
Discharged 185 mg/L against a permitted limit of 45 mg/L (WKLY MAX)
DMR, Limited - Numeric Violation
December 31, 2025
Copper, total recoverable
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Sludge waste from secondary clarifiers
0% over limit
Discharged 0 gal against a permitted limit of 0 gal (DAILY MX)
DMR, Monitor Only - Overdue
Sludge waste from secondary clarifiers
0% over limit
Discharged 0 gal against a permitted limit of 0 gal (MO AVG)
DMR, Monitor Only - Overdue
Mercury, total low level
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Mercury, total low level
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 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
April 30, 2025
Mercury, total low level
25% over limit
Discharged 0.0000864 kg/d against a permitted limit of 0.000069 kg/d (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2025
Solids, total suspended
2% over limit
Discharged 46 mg/L against a permitted limit of 45 mg/L (WKLY MAX)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)