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Cooperative Energy, Silver Creek Generating Plant

Electric Services, Prentiss, Mississippi. NPDES permit MS0058033 expired Oct 31, 2024; its limits still apply. Last 12 months: over a limit once (last July 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (22 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
2 values over a limit, 0 required values missing, 0 of 12 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period endingParameterReportedLimitOver by
July 2026Temperature, water deg. fahrenheit, daily maximum90.7 deg F≤ 90 deg F1%

Limits in force (22)

ParameterStatisticLimitMonths
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year
Temperature, water deg. fahrenheitdaily maximum≤ 90 deg Fall year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendeddaily maximum≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ 1.2 lb/dall year
Solids, total suspendeddaily maximum≤ 1.8 lb/dall year
Oil & Greasemonthly average≤ 15 mg/Lall year
Oil & Greasedaily maximum≤ 20 mg/Lall year
Oil & Greasemonthly average≤ .6 lb/dall year
Oil & Greasedaily maximum≤ .8 lb/dall year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Chlorine, total residualmonthly average≤ .011 mg/Lall year
Chlorine, total residualdaily maximum≤ .019 mg/Lall year
Chlorine, total residualmonthly average≤ .00044 lb/dall year
Chlorine, total residualdaily maximum≤ .00076 lb/dall year
Solids, total dissolvedmonthly average≤ 750 mg/Lall year
Solids, total dissolveddaily maximum≤ 1500 mg/Lall year
Solids, total dissolvedmonthly average≤ 30.02 lb/dall year
Solids, total dissolveddaily maximum≤ 60.05 lb/dall year

How strict are these limits?

Cited limits by parameter: Mississippi's rules and the federal ones.

Same industry: the 20 Electric Services permits in Mississippi.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/MS0058033 · MCP: https://passage-data.com/mcp