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Magnolia Water Utility Operating Co., LLC

Sewerage Systems, Pearl River, Louisiana. NPDES permit LA0075086, in force until Mar 31, 2027. Last 12 months: over a limit 16 times (last June 2026), 2 of 12 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A quarterly (11 values), form Q quarterly (4 values)
Renewal application due
Oct 2, 2026 · 180 days before expiry; your permit may set another date
Last report on file
June 2026
Oct 2024 – Sep 2025
35 values over a limit, 0 required values missing, 0 of 16 reports late

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

All 16 values over a limit
Period endingParameterReportedLimitOver by
October 2025Chlorine, total residual, instantaneous maximum2.8 mg/L≤ .033 mg/L8385%
November 2025Chlorine, total residual, instantaneous maximum3.3 mg/L≤ .033 mg/L9900%
December 2025Chlorine, total residual, instantaneous maximum3.1 mg/L≤ .033 mg/L9294%
January 2026Chlorine, total residual, instantaneous maximum3 mg/L≤ .033 mg/L8991%
February 2026BOD, 5-day, 20 deg. C, daily maximum18 mg/L≤ 15 mg/L20%
February 2026BOD, 5-day, 20 deg. C, monthly average13 mg/L≤ 10 mg/L30%
February 2026Chlorine, total residual, instantaneous maximum3.1 mg/L≤ .033 mg/L9294%
March 2026BOD, 5-day, 20 deg. C, daily maximum26 mg/L≤ 15 mg/L73%
March 2026BOD, 5-day, 20 deg. C, monthly average16 mg/L≤ 10 mg/L60%
March 2026Coliform, fecal general, daily maximum1140 #/100mL≤ 400 #/100mL185%
April 2026BOD, 5-day, 20 deg. C, daily maximum20 mg/L≤ 15 mg/L33%
April 2026BOD, 5-day, 20 deg. C, monthly average17 mg/L≤ 10 mg/L70%
May 2026BOD, 5-day, 20 deg. C, daily maximum16 mg/L≤ 15 mg/L7%
May 2026BOD, 5-day, 20 deg. C, monthly average11 mg/L≤ 10 mg/L10%
June 2026Coliform, fecal general, daily maximum2760 #/100mL≤ 400 #/100mL590%
June 2026Coliform, fecal general, monthly geometric mean797 #/100mL≤ 200 #/100mL299%

Limits in force (15)

ParameterStatisticLimitMonths
BOD, 5-day, 20 deg. Cmonthly average≤ 10 mg/Lall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 15 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
Nitrogen, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, total [as N]daily maximumreport only (mg/L)all year
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]daily maximumreport only (mg/L)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 residualinstantaneous maximum≤ .033 mg/Lall year
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year
Coliform, fecal generaldaily maximum≤ 400 #/100mLall 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/LA0075086 · MCP: https://passage-data.com/mcp