SEVILLE WWTP
NPDES ID: OH0027375
X — SNC: Effluent violation (non-monthly average limit)
The facility discharged more of a pollutant than its permit allows, measured over a period other than a monthly average.
This quarter: 9 effluent violations, 1 permit schedule violation.
Violations
May 31, 2026
Nitrogen, ammonia total [as N]
4% over limit
Discharged 2.9 kg/d against a permitted limit of 2.8 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
22% over limit
Discharged 2.8 mg/L against a permitted limit of 2.3 mg/L (WKLY MAX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
39% over limit
Discharged 6.1 kg/d against a permitted limit of 4.4 kg/d (WKLY MAX)
DMR, Limited - Numeric Violation
April 30, 2026
Lead, total recoverable
47% over limit
Discharged 0.1 kg/d against a permitted limit of 0.068 kg/d (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
17% over limit
Discharged 22.22 kg/d against a permitted limit of 19 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
148% over limit
Discharged 25 kg/d against a permitted limit of 10.1 kg/d (WKLY MAX)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (5 months ago)
Last confirmed
September 15, 2026 (5 days ago)