GIBSONBURG WWTP

NPDES ID: OH0029122

S — SNC: Compliance schedule violation

The facility missed a deadline in its compliance schedule by more than 90 days.

Violations

February 28, 2026

Nitrogen, ammonia total [as N]

124% over limit

Discharged 10.1 mg/L against a permitted limit of 4.5 mg/L (WKLY MAX)

DMR, Limited - Numeric Violation

August 31, 2025

Mercury, total low level

10% over limit

Discharged 0.00000143 mg/L against a permitted limit of 0.0000013 mg/L (MO AVG)

DMR, Limited - Numeric Violation

June 30, 2025

Nitrogen, ammonia total [as N]

2% over limit

Discharged 2.9 kg/d against a permitted limit of 2.84 kg/d (WKLY MAX)

DMR, Limited - Numeric Violation

First flagged

April 14, 2026 (3 months ago)

Last confirmed

July 13, 2026 (24 days ago)