Passage Data · Check a report · Use it from your AI

Magnolia Potw, North

Sewage treatment plant, Magnolia, Mississippi. NPDES permit MS0026891, in force until Nov 30, 2027. Last 12 months: over a limit 15 times (last June 2026), 1 of 2 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form S twice a year
Renewal application due
Jun 3, 2027 · 180 days before expiry; your permit may set another date
Last report on file
June 2026
Oct 2024 – Sep 2025
15 values over a limit, 35 required values missing, 1 of 2 reports late

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

All 15 values over a limit
Period endingParameterReportedLimitOver by
December 2025BOD, 5-day, 20 deg. C, maximum monthly average69 mg/L≤ 30 mg/L130%
December 2025BOD, 5-day, 20 deg. C, maximum weekly average69 mg/L≤ 45 mg/L53%
December 2025Chlorine, total residual, maximum monthly average.26 mg/L≤ .1 mg/L160%
December 2025Chlorine, total residual, maximum weekly average.39 mg/L≤ .18 mg/L117%
December 2025E. coli, maximum monthly average≥ 2420 #/100mL≤ 126 #/100mL1821%
December 2025E. coli, maximum weekly average≥ 2420 #/100mL≤ 410 #/100mL490%
December 2025Solids, total suspended, maximum monthly average92 mg/L≤ 90 mg/L2%
June 2026Chlorine, total residual, maximum monthly average.29 mg/L≤ .1 mg/L190%
June 2026Chlorine, total residual, maximum weekly average.39 mg/L≤ .18 mg/L117%
June 2026E. coli, maximum monthly average≥ 2420 #/100mL≤ 126 #/100mL1821%
June 2026E. coli, maximum weekly average≥ 2420 #/100mL≤ 410 #/100mL490%
June 2026Nitrogen, ammonia total [as N], maximum monthly average18.4 lb/d≤ 6 lb/d207%
June 2026Nitrogen, ammonia total [as N], maximum monthly average5.1 mg/L≤ 2 mg/L155%
June 2026Nitrogen, ammonia total [as N], maximum weekly average18.4 lb/d≤ 10 lb/d84%
June 2026Nitrogen, ammonia total [as N], maximum weekly average5.1 mg/L≤ 3 mg/L70%

Limits in force (35)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]minimum≥ 6 mg/Lall year
BOD, 5-day, 20 deg. Cmaximum monthly average≤ 30 mg/Lall year
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 45 mg/Lall year
BOD, 5-day, 20 deg. Cmaximum monthly average≤ 97 lb/dall year
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 145 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≤ 90 mg/Lall year
Solids, total suspendedmaximum weekly average≤ 135 mg/Lall year
Solids, total suspendedmaximum monthly average≤ 290 lb/dall year
Solids, total suspendedmaximum weekly average≤ 436 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≤ 2 mg/Lall year
Nitrogen, ammonia total [as N]maximum weekly average≤ 3 mg/Lall year
Nitrogen, ammonia total [as N]maximum monthly average≤ 6 lb/dall year
Nitrogen, ammonia total [as N]maximum weekly average≤ 10 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≤ .387 MGDall year
Flow, in conduit or thru treatment plantmaximum weekly averagereport only (MGD)all year
Chlorine, total residualmaximum monthly average≤ .1 mg/Lall year
Chlorine, total residualmaximum weekly average≤ .18 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

· Save this facility as a site · Superfund sites nearby · Your permits on one board

On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/MS0026891 · MCP: https://passage-data.com/mcp