UNIVERSITY OF MISSISSIPPI, THE
NPDES ID: MS0021873
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: 4 effluent violations.
Violations
May 31, 2026
Copper, total recoverable
80% over limit
Discharged 0.009 mg/L against a permitted limit of 0.005 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total recoverable
29% over limit
Discharged 0.009 mg/L against a permitted limit of 0.007 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
April 30, 2026
Copper, total recoverable
69% over limit
Discharged 0.00845 mg/L against a permitted limit of 0.005 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total recoverable
21% over limit
Discharged 0.00845 mg/L against a permitted limit of 0.007 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
March 31, 2026
Copper, total recoverable
55% over limit
Discharged 0.01085 mg/L against a permitted limit of 0.007 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Copper, total recoverable
117% over limit
Discharged 0.01085 mg/L against a permitted limit of 0.005 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2026
Copper, total recoverable
108% over limit
Discharged 0.0104 mg/L against a permitted limit of 0.005 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total recoverable
49% over limit
Discharged 0.0104 mg/L against a permitted limit of 0.007 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
January 31, 2026
Copper, total recoverable
100% over limit
Discharged 0.014 mg/L against a permitted limit of 0.007 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Copper, total recoverable
180% over limit
Discharged 0.014 mg/L against a permitted limit of 0.005 mg/L (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2025
Copper, total recoverable
20% over limit
Discharged 0.006 mg/L against a permitted limit of 0.005 mg/L (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2025
Copper, total recoverable
50% over limit
Discharged 0.0105 mg/L against a permitted limit of 0.007 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Copper, total recoverable
110% over limit
Discharged 0.0105 mg/L against a permitted limit of 0.005 mg/L (MO AVG)
DMR, Limited - Numeric Violation
October 31, 2025
Copper, total recoverable
33% over limit
Discharged 0.0093 mg/L against a permitted limit of 0.007 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Copper, total recoverable
86% over limit
Discharged 0.0093 mg/L against a permitted limit of 0.005 mg/L (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2025
E. coli
76% over limit
Discharged 222 MPN/100mL against a permitted limit of 126 MPN/100mL (MO AVG)
DMR, Limited - Numeric Violation
Copper, total recoverable
155% over limit
Discharged 0.01275 mg/L against a permitted limit of 0.005 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli
323% over limit
Discharged 1733 MPN/100mL against a permitted limit of 410 MPN/100mL (MX WK AV)
DMR, Limited - Numeric Violation
Copper, total recoverable
82% over limit
Discharged 0.01275 mg/L against a permitted limit of 0.007 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
August 31, 2025
Copper, total recoverable
76% over limit
Discharged 0.0088 mg/L against a permitted limit of 0.005 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total recoverable
26% over limit
Discharged 0.0088 mg/L against a permitted limit of 0.007 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
July 31, 2025
Copper, total recoverable
93% over limit
Discharged 0.0135 mg/L against a permitted limit of 0.007 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Copper, total recoverable
110% over limit
Discharged 0.0105 mg/L against a permitted limit of 0.005 mg/L (MO AVG)
DMR, Limited - Numeric Violation
June 30, 2025
Copper, total recoverable
16% over limit
Discharged 0.0081 mg/L against a permitted limit of 0.007 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Copper, total recoverable
61% over limit
Discharged 0.00805 mg/L against a permitted limit of 0.005 mg/L (MO AVG)
DMR, Limited - Numeric Violation
May 31, 2025
Copper, total recoverable
27% over limit
Discharged 0.0089 mg/L against a permitted limit of 0.007 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Copper, total recoverable
60% over limit
Discharged 0.008 mg/L against a permitted limit of 0.005 mg/L (MO AVG)
DMR, Limited - Numeric Violation
April 30, 2025
Copper, total recoverable
29% over limit
Discharged 0.009 mg/L against a permitted limit of 0.007 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Copper, total recoverable
60% over limit
Discharged 0.008 mg/L against a permitted limit of 0.005 mg/L (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2025
Copper, total recoverable
104% over limit
Discharged 0.0102 mg/L against a permitted limit of 0.005 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total recoverable
53% over limit
Discharged 0.0107 mg/L against a permitted limit of 0.007 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
February 28, 2025
Copper, total recoverable
71% over limit
Discharged 0.012 mg/L against a permitted limit of 0.007 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Copper, total recoverable
120% over limit
Discharged 0.011 mg/L against a permitted limit of 0.005 mg/L (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2025
Copper, total recoverable
43% over limit
Discharged 0.01 mg/L against a permitted limit of 0.007 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Copper, total recoverable
100% over limit
Discharged 0.01 mg/L against a permitted limit of 0.005 mg/L (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2024
Copper, total recoverable
100% over limit
Discharged 0.01 mg/L against a permitted limit of 0.005 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total recoverable
43% over limit
Discharged 0.01 mg/L against a permitted limit of 0.007 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
November 30, 2024
Copper, total recoverable
40% over limit
Discharged 0.007 mg/L against a permitted limit of 0.005 mg/L (MO AVG)
DMR, Limited - Numeric Violation
October 31, 2024
Copper, total recoverable
39% over limit
Discharged 0.0097 mg/L against a permitted limit of 0.007 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Copper, total recoverable
60% over limit
Discharged 0.008 mg/L against a permitted limit of 0.005 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli
68% over limit
Discharged 687 MPN/100mL against a permitted limit of 410 MPN/100mL (MX WK AV)
DMR, Limited - Numeric Violation
September 30, 2024
Copper, total recoverable
53% over limit
Discharged 0.0107 mg/L against a permitted limit of 0.007 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Copper, total recoverable
94% over limit
Discharged 0.0097 mg/L against a permitted limit of 0.005 mg/L (MO AVG)
DMR, Limited - Numeric Violation
August 31, 2024
Copper, total recoverable
40% over limit
Discharged 0.007 mg/L against a permitted limit of 0.005 mg/L (MO AVG)
DMR, Limited - Numeric Violation
July 31, 2024
Copper, total recoverable
18% over limit
Discharged 0.0059 mg/L against a permitted limit of 0.005 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total recoverable
9% over limit
Discharged 0.0076 mg/L against a permitted limit of 0.007 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)