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Ellisville Potw, South

Sewage treatment plant, Ellisville, Mississippi. NPDES permit MS0025178, in force until Nov 30, 2027. Last 12 months: over a limit 2 times (last December 2025), 1 of 1 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form Y yearly
Renewal application due
Jun 3, 2027 · 180 days before expiry; your permit may set another date
Last report on file
December 2025
Oct 2024 – Sep 2025
4 values over a limit, 0 required values missing, 0 of 1 report late

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

Period endingParameterReportedLimitOver by
December 2025Nitrogen, ammonia total [as N], maximum monthly average11.2 mg/L≤ 7 mg/L60%
December 2025Nitrogen, ammonia total [as N], maximum weekly average11.2 mg/L≤ 10.5 mg/L7%

Limits in force (39)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]minimum≥ 6 mg/Lall year
BOD, 5-day, 20 deg. Cmaximum monthly average≤ 28 mg/Lall year
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 42 mg/Lall year
BOD, 5-day, 20 deg. Cmaximum monthly average≤ 229 lb/dall year
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 344 lb/dall year
BOD, 5-day, 20 deg. Cmaximum monthly averagereport only (mg/L)all year
BOD, 5-day, 20 deg. Cmaximum weekly averagereport only (mg/L)all year
BOD, 5-day, 20 deg. Cmaximum monthly averagereport only (lb/d)all year
BOD, 5-day, 20 deg. Cmaximum weekly averagereport only (lb/d)all year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedmaximum monthly average≤ 60 mg/Lall year
Solids, total suspendedmaximum weekly average≤ 90 mg/Lall year
Solids, total suspendedmaximum monthly average≤ 490 lb/dall year
Solids, total suspendedmaximum weekly average≤ 735 lb/dall year
Solids, total suspendedmaximum monthly averagereport only (mg/L)all year
Solids, total suspendedmaximum weekly averagereport only (mg/L)all year
Solids, total suspendedmaximum monthly averagereport only (lb/d)all year
Solids, total suspendedmaximum weekly averagereport only (lb/d)all year
Nitrogen, total [as N]maximum monthly averagereport only (mg/L)all year
Nitrogen, total [as N]maximum weekly averagereport only (mg/L)all year
Nitrogen, total [as N]maximum monthly average≤ 96.25 lb/dall year
Nitrogen, total [as N]maximum weekly average≤ 144.37 lb/dall year
Nitrogen, ammonia total [as N]maximum monthly average≤ 7 mg/Lall year
Nitrogen, ammonia total [as N]maximum weekly average≤ 10.5 mg/Lall year
Nitrogen, ammonia total [as N]maximum monthly average≤ 57.3 lb/dall year
Nitrogen, ammonia total [as N]maximum weekly average≤ 85.9 lb/dall year
Phosphorus, total [as P]maximum monthly averagereport only (mg/L)all year
Phosphorus, total [as P]maximum weekly averagereport only (mg/L)all year
Phosphorus, total [as P]maximum monthly average≤ 46.87 lb/dall year
Phosphorus, total [as P]maximum weekly average≤ 70.3 lb/dall year
Flow, in conduit or thru treatment plantmaximum monthly average≤ .98 MGDall year
Flow, in conduit or thru treatment plantmaximum weekly averagereport only (MGD)all year
Chlorine, total residualmaximum monthly average≤ .22 mg/Lall year
Chlorine, total residualmaximum weekly average≤ .33 mg/Lall year
E. colimaximum monthly average≤ 126 #/100mLall year
E. colimaximum weekly average≤ 410 #/100mLall year
BOD, 5-day, percent removalminimum≥ 65 %all year
Solids, suspended percent removalminimum≥ 65 %all year

How strict are these limits?

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

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/MS0025178 · MCP: https://passage-data.com/mcp