MCCOMB POTW
NPDES ID: MS0061077
E — SNC: Effluent violation (monthly average limit)
The facility discharged more of a pollutant than its permit allows, based on a monthly average.
Violations
March 31, 2026
Copper, total recoverable
35% over limit
Discharged 0.0077 mg/L against a permitted limit of 0.0057 mg/L (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2025
Copper, total recoverable
119% over limit
Discharged 0.0125 mg/L against a permitted limit of 0.0057 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total recoverable
58% over limit
Discharged 0.0125 mg/L against a permitted limit of 0.0079 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
September 30, 2025
Copper, total recoverable
75% over limit
Discharged 0.0138 mg/L against a permitted limit of 0.0079 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Copper, total recoverable
142% over limit
Discharged 0.0138 mg/L against a permitted limit of 0.0057 mg/L (MO AVG)
DMR, Limited - Numeric Violation
August 31, 2025
Copper, total recoverable
1742% over limit
Discharged 0.105 mg/L against a permitted limit of 0.0057 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total recoverable
1229% over limit
Discharged 0.105 mg/L against a permitted limit of 0.0079 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
July 31, 2025
Copper, total recoverable
295% over limit
Discharged 0.0225 mg/L against a permitted limit of 0.0057 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total recoverable
280% over limit
Discharged 0.03 mg/L against a permitted limit of 0.0079 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
June 30, 2025
Copper, total recoverable
214% over limit
Discharged 0.0179 mg/L against a permitted limit of 0.0057 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total recoverable
204% over limit
Discharged 0.024 mg/L against a permitted limit of 0.0079 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
May 31, 2025
Copper, total recoverable
146% over limit
Discharged 0.014 mg/L against a permitted limit of 0.0057 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total recoverable
77% over limit
Discharged 0.014 mg/L against a permitted limit of 0.0079 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
April 30, 2025
Solids, suspended percent removal
87% over limit
Discharged 72 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
Copper, total recoverable
4% over limit
Discharged 0.0059 mg/L against a permitted limit of 0.0057 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
100% over limit
Discharged 70 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
March 31, 2025
Copper, total recoverable
204% over limit
Discharged 0.024 mg/L against a permitted limit of 0.0079 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Copper, total recoverable
196% over limit
Discharged 0.0169 mg/L against a permitted limit of 0.0057 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2025
Copper, total recoverable
1% over limit
Discharged 0.008 mg/L against a permitted limit of 0.0079 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Copper, total recoverable
40% over limit
Discharged 0.008 mg/L against a permitted limit of 0.0057 mg/L (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2025
Copper, total recoverable
153% over limit
Discharged 0.02 mg/L against a permitted limit of 0.0079 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Copper, total recoverable
75% over limit
Discharged 0.01 mg/L against a permitted limit of 0.0057 mg/L (MO AVG)
DMR, Limited - Numeric Violation
August 31, 2024
Copper, total recoverable
4% over limit
Discharged 0.0059 mg/L against a permitted limit of 0.0057 mg/L (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)