CALDWELL WWTP
NPDES ID: OH0020559
S — SNC: Compliance schedule violation
The facility missed a deadline in its compliance schedule by more than 90 days.
Violations
March 31, 2026
Solids, total suspended
6% over limit
Discharged 45 kg/d against a permitted limit of 42.4 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
56% over limit
Discharged 99 kg/d against a permitted limit of 63.6 kg/d (WKLY MAX)
DMR, Limited - Numeric Violation
September 30, 2025
Oxygen, dissolved [DO]
5% over limit
Discharged 5.21 mg/L against a permitted limit of 5.5 mg/L (DAILY MN)
DMR, Limited - Numeric Violation
July 31, 2025
Oxygen, dissolved [DO]
1% over limit
Discharged 5.47 mg/L against a permitted limit of 5.5 mg/L (DAILY MN)
DMR, Limited - Numeric Violation
May 31, 2025
Oxygen, dissolved [DO]
9% over limit
Discharged 5 mg/L against a permitted limit of 5.5 mg/L (DAILY MN)
DMR, Limited - Numeric Violation
March 31, 2025
Oxygen, dissolved [DO]
4% over limit
Discharged 5.27 mg/L against a permitted limit of 5.5 mg/L (DAILY MN)
DMR, Limited - Numeric Violation
February 28, 2025
Oxygen, dissolved [DO]
3% over limit
Discharged 5.31 mg/L against a permitted limit of 5.5 mg/L (DAILY MN)
DMR, Limited - Numeric Violation
August 31, 2024
Oxygen, dissolved [DO]
4% over limit
Discharged 5.3 mg/L against a permitted limit of 5.5 mg/L (DAILY MN)
DMR, Limited - Numeric Violation
July 31, 2024
Oxygen, dissolved [DO]
1% over limit
Discharged 5.45 mg/L against a permitted limit of 5.5 mg/L (DAILY MN)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)