CITY OF ST CLAIRSVILLE WEST WWTP
NPDES ID: OH0091316
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
June 30, 2026
Nitrogen, ammonia total [as N]
113% over limit
Discharged 3.19 mg/L against a permitted limit of 1.5 mg/L (WKLY MAX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
18% over limit
Discharged 0.604 kg/d against a permitted limit of 0.511 kg/d (WKLY MAX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
95% over limit
Discharged 1.95 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
18% over limit
Discharged 0.401 kg/d against a permitted limit of 0.341 kg/d (MO AVG)
DMR, Limited - Numeric Violation
May 31, 2026
Nitrogen, ammonia total [as N]
182% over limit
Discharged 0.963 kg/d against a permitted limit of 0.341 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
233% over limit
Discharged 1.7 kg/d against a permitted limit of 0.511 kg/d (WKLY MAX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
181% over limit
Discharged 2.81 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
208% over limit
Discharged 4.62 mg/L against a permitted limit of 1.5 mg/L (WKLY MAX)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 15, 2026 (6 hours ago)