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Greater Ouachita Water Co Inc - US Hwy 165 N Regional WWTF

Sewerage Systems, Monroe, Louisiana. NPDES permit LA0116424, in force until Feb 28, 2031. Last 12 months: over a limit 12 times (last April 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A quarterly (28 values), form Q quarterly (6 values), form Y yearly
Last report on file
September 2026
Oct 2024 – Sep 2025
26 values over a limit, 0 required values missing, 0 of 16 reports late

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

Period endingParameterReportedLimitOver by
October 2025BOD, 5-day, 20 deg. C, daily maximum28.8 mg/L≤ 15 mg/L92%
October 2025BOD, 5-day, 20 deg. C, monthly average18.09 mg/L≤ 10 mg/L81%
October 2025Coliform, fecal general, daily maximum8800 #/100mL≤ 400 #/100mL2100%
October 2025Solids, total suspended, daily maximum35 mg/L≤ 23 mg/L52%
October 2025Solids, total suspended, monthly average27.81 mg/L≤ 15 mg/L85%
November 2025BOD, 5-day, 20 deg. C, daily maximum15.9 mg/L≤ 15 mg/L6%
November 2025Solids, total suspended, daily maximum27 mg/L≤ 23 mg/L17%
November 2025Solids, total suspended, monthly average18.72 mg/L≤ 15 mg/L25%
December 2025Solids, total suspended, daily maximum25 mg/L≤ 23 mg/L9%
February 2026BOD, 5-day, 20 deg. C, daily maximum40 mg/L≤ 15 mg/L167%
February 2026BOD, 5-day, 20 deg. C, monthly average16.54 mg/L≤ 10 mg/L65%
April 2026BOD, 5-day, 20 deg. C, daily maximum16.1 mg/L≤ 15 mg/L7%

Limits in force (40)

ParameterStatisticLimitMonths
BOD, 5-day, 20 deg. Cmonthly average≤ 10 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 10 mg/Lall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 15 mg/Lall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 15 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 57 lb/dall year
BOD, 5-day, 20 deg. Cmonthly average≤ 57 lb/dall year
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all year
pHinstantaneous minimum≥ 6 SUall year
pHinstantaneous minimum≥ 6 SUall year
pHinstantaneous maximum≤ 9 SUall year
pHinstantaneous maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 15 mg/Lall year
Solids, total suspendedmonthly average≤ 15 mg/Lall year
Solids, total suspendeddaily maximum≤ 23 mg/Lall year
Solids, total suspendeddaily maximum≤ 23 mg/Lall year
Solids, total suspendedmonthly average≤ 86 lb/dall year
Solids, total suspendedmonthly average≤ 86 lb/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendeddaily maximumreport only (mg/L)all 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
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
Oil and greasedaily maximum≤ 15 mg/Lall year
Oil and greasedaily maximum≤ 15 mg/Lall year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)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
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Chlorine, total residualinstantaneous maximum≤ .033 mg/Lall year
Chlorine, total residualinstantaneous maximum≤ .033 mg/Lall year
BOD, percent removal [total]monthly average minimum≥ 85 %all year
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year
Coliform, fecal generaldaily maximum≤ 400 #/100mLall year
Coliform, fecal generaldaily maximum≤ 400 #/100mLall year
Solids, suspended percent removalmonthly average minimum≥ 85 %all year

How strict are these limits?

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/LA0116424 · MCP: https://passage-data.com/mcp