MDOC, SOUTH MISSISSIPPI CORRECTIONAL INSTITUTION
NPDES ID: MS0050750
X — SNC: Effluent violation (non-monthly average limit)
The facility discharged more of a pollutant than its permit allows, measured over a period other than a monthly average.
This quarter: 11 effluent violations, 2 single-event violations.
Violations
June 30, 2026
BOD, 5-day, 20 deg. C
80% over limit
Discharged 27 mg/L against a permitted limit of 15 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
E. coli
1821% over limit
Discharged 2420 MPN/100mL against a permitted limit of 126 MPN/100mL (MX MO AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
346% over limit
Discharged 22.29139981 kg/d against a permitted limit of 4.99399996 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
513% over limit
Discharged 18.4 mg/L against a permitted limit of 3 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
820% over limit
Discharged 18.4 mg/L against a permitted limit of 2 mg/L (MX MO AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
29% over limit
Discharged 32.68799973 kg/d against a permitted limit of 25.42399979 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (5 months ago)
Last confirmed
September 15, 2026 (6 days ago)