JEFFERSON WWTP
NPDES ID: OH0025887
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: 5 effluent violations.
Violations
May 31, 2026
Copper, total recoverable
45% over limit
Discharged 0.0217 mg/L against a permitted limit of 0.015 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total recoverable
36% over limit
Discharged 0.0327 mg/L against a permitted limit of 0.024 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
April 30, 2026
Copper, total recoverable
6% over limit
Discharged 0.0255 mg/L against a permitted limit of 0.024 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, total recoverable
43% over limit
Discharged 0.0214 mg/L against a permitted limit of 0.015 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total recoverable
7% over limit
Discharged 0.0605 kg/d against a permitted limit of 0.0565 kg/d (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2026
Copper, total recoverable
19% over limit
Discharged 0.0179 mg/L against a permitted limit of 0.015 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total recoverable
1% over limit
Discharged 0.0242 mg/L against a permitted limit of 0.024 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
February 28, 2026
Copper, total recoverable
93% over limit
Discharged 0.0289 mg/L against a permitted limit of 0.015 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total recoverable
50% over limit
Discharged 0.0849 kg/d against a permitted limit of 0.0565 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Copper, total recoverable
32% over limit
Discharged 0.0317 mg/L against a permitted limit of 0.024 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, total recoverable
26% over limit
Discharged 0.114 kg/d against a permitted limit of 0.0904 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
January 31, 2026
Copper, total recoverable
57% over limit
Discharged 0.0887 kg/d against a permitted limit of 0.0565 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Copper, total recoverable
103% over limit
Discharged 0.0305 mg/L against a permitted limit of 0.015 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total recoverable
110% over limit
Discharged 0.0505 mg/L against a permitted limit of 0.024 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, total recoverable
33% over limit
Discharged 0.12 kg/d against a permitted limit of 0.0904 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
December 31, 2025
Copper, total recoverable
29% over limit
Discharged 0.0193 mg/L against a permitted limit of 0.015 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total recoverable
3% over limit
Discharged 0.0247 mg/L against a permitted limit of 0.024 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
November 30, 2025
Copper, total recoverable
34% over limit
Discharged 0.0201 mg/L against a permitted limit of 0.015 mg/L (MO AVG)
DMR, Limited - Numeric Violation
October 31, 2025
Copper, total recoverable
36% over limit
Discharged 0.0326 mg/L against a permitted limit of 0.024 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, total recoverable
67% over limit
Discharged 0.025 mg/L against a permitted limit of 0.015 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total recoverable
16% over limit
Discharged 0.105 kg/d against a permitted limit of 0.0904 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
September 30, 2025
Copper, total recoverable
12% over limit
Discharged 0.0168 mg/L against a permitted limit of 0.015 mg/L (MO AVG)
DMR, Limited - Numeric Violation
August 31, 2025
Cyanide, free available
5% over limit
Discharged 0.00544 mg/L against a permitted limit of 0.0052 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total recoverable
25% over limit
Discharged 0.0188 mg/L against a permitted limit of 0.015 mg/L (MO AVG)
DMR, Limited - Numeric Violation
July 31, 2025
Copper, total recoverable
39% over limit
Discharged 0.0209 mg/L against a permitted limit of 0.015 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total recoverable
19% over limit
Discharged 0.0286 mg/L against a permitted limit of 0.024 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
May 31, 2025
Copper, total recoverable
3% over limit
Discharged 0.0155 mg/L against a permitted limit of 0.015 mg/L (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)