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Magnolia Water Utility Operating Co., LLC

Sewerage Systems, Maurice, Louisiana. NPDES permit LA0127703, in force until Oct 14, 2028. Last 12 months: over a limit 5 times (last June 2026), 4 of 14 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form Q quarterly (6 values), form A quarterly
Renewal application due
Apr 17, 2028 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
33 values over a limit, 171 required values missing, 12 of 16 reports late

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

Period endingParameterReportedLimitOver by
January 2026BOD, carbonaceous [5 day, 20 C], monthly average7 mg/L≤ 5 mg/L40%
February 2026BOD, carbonaceous [5 day, 20 C], monthly average6 mg/L≤ 5 mg/L20%
April 2026BOD, carbonaceous [5 day, 20 C], daily maximum11 mg/L≤ 10 mg/L10%
April 2026BOD, carbonaceous [5 day, 20 C], monthly average6 mg/L≤ 5 mg/L20%
June 2026Coliform, fecal general, daily maximum1844 #/100mL≤ 400 #/100mL361%

Limits in force (23)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]instantaneous minimum≥ 5 mg/Lall year
pHinstantaneous minimum≥ 6 SUall year
pHinstantaneous maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 15 mg/Lall year
Solids, total suspendeddaily maximum≤ 23 mg/Lall year
Solids, total suspendedmonthly average≤ 15.5 lb/dall year
Nitrogen, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, total [as N]daily maximumreport only (mg/L)all year
Nitrogen, total [as N]monthly averagereport only (lb/d)all year
Nitrogen, ammonia total [as N]monthly average≤ 2 mg/Lall year
Nitrogen, ammonia total [as N]daily maximum≤ 4 mg/Lall year
Nitrogen, ammonia total [as N]monthly average≤ 2.1 lb/dall year
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]daily maximumreport only (mg/L)all year
Phosphorus, total [as P]monthly averagereport only (lb/d)all 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 residualdaily maximum≤ 1.3 mg/Lall year
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year
Coliform, fecal generaldaily maximum≤ 400 #/100mLall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 5 mg/Lall year
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 10 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 5.2 lb/dall year

How strict are these limits?

Cited limits by parameter: Louisiana'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/LA0127703 · MCP: https://passage-data.com/mcp