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Chunky Potw

Sewage treatment plant, Chunky, Mississippi. NPDES permit MS0024767, in force until Jun 30, 2028. Last 12 months: over a limit 2 times (last December 2025). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form Y yearly
Renewal application due
Jan 2, 2028 · 180 days before expiry; your permit may set another date
Last report on file
December 2025
Oct 2024 – Sep 2025
2 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 2025Flow, in conduit or thru treatment plant, maximum monthly average.033 MGD≤ .03 MGD10%
December 2025Oxygen, dissolved [DO], minimum5.8 mg/L≥ 6 mg/L3%

Limits in force (38)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]minimum≥ 6 mg/Lall year
BOD, 5-day, 20 deg. Cmaximum monthly average≤ 45 mg/Lall year
BOD, 5-day, 20 deg. Cmaximum monthly average≤ 2 mg/Lall year
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 65 mg/Lall year
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 3 mg/Lall year
BOD, 5-day, 20 deg. Cmaximum monthly average≤ 11 lb/dall year
BOD, 5-day, 20 deg. Cmaximum monthly average≤ .5 lb/dall year
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 16 lb/dall year
BOD, 5-day, 20 deg. Cmaximum weekly average≤ .75 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 weekly average≤ 9 SUall year
Solids, total suspendedmaximum monthly average≤ 90 mg/Lall year
Solids, total suspendedmaximum weekly average≤ 135 mg/Lall year
Solids, total suspendedmaximum monthly average≤ 22 lb/dall year
Solids, total suspendedmaximum weekly average≤ 33 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, ammonia total [as N]maximum monthly average≤ 1 mg/Lall year
Nitrogen, ammonia total [as N]maximum weekly average≤ 1.5 mg/Lall year
Nitrogen, ammonia total [as N]maximum monthly average≤ .25 lb/dall year
Nitrogen, ammonia total [as N]maximum weekly average≤ .37 lb/dall year
Nitrogen, ammonia total [as N]maximum monthly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]maximum weekly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]maximum monthly averagereport only (lb/d)all year
Nitrogen, ammonia total [as N]maximum weekly averagereport only (lb/d)all year
Flow, in conduit or thru treatment plantmaximum monthly average≤ .03 MGDall year
Flow, in conduit or thru treatment plantmaximum weekly averagereport only (MGD)all year
Chlorine, total residualmaximum monthly averagereport only (mg/L)all year
Chlorine, total residualmaximum weekly average≤ 1 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

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/MS0024767 · MCP: https://passage-data.com/mcp