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City of West Monroe- Wastewater Treatment Facility

Sewage treatment plant, major discharger, West Monroe, Louisiana. NPDES permit LA0043982 expired Sep 30, 2024; its limits still apply. Last 12 months: over a limit 10 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form DA quarterly (11 values), outfall 001 form PI quarterly (11 values), outfall 001 form Q quarterly (6 values), outfall SUM form A monthly (14 values), outfall SUM form B monthly (14 values), outfall SUM form C monthly (14 values), and 13 more forms
Last report on file
September 2026
Oct 2024 – Sep 2025
11 values over a limit, 0 required values missing, 1 of 204 reports late

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

Period endingParameterReportedLimitOver by
February 2026Chlorine, total residual, maximum.18 mg/L≤ 0 mg/L—
June 2026BOD, 5-day, 20 deg. C, monthly average3757.77 lb/d≤ 1743 lb/d116%
June 2026BOD, 5-day, 20 deg. C, monthly average53 mg/L≤ 30 mg/L77%
June 2026BOD, 5-day, 20 deg. C, weekly average55.03 mg/L≤ 45 mg/L22%
June 2026Chlorine, total residual, maximum.05 mg/L≤ 0 mg/L—
June 2026Coliform, fecal general, monthly average2471.91 #/100mL≤ 200 #/100mL1136%
June 2026Coliform, fecal general, weekly average2939.22 #/100mL≤ 400 #/100mL635%
June 2026Solids, total suspended, monthly average3976.99 lb/d≤ 1743 lb/d128%
June 2026Solids, total suspended, monthly average56.09 mg/L≤ 30 mg/L87%
June 2026Solids, total suspended, weekly average56.81 mg/L≤ 45 mg/L26%

Limits in force (252)

ParameterStatisticLimitMonthsOutfall
Nitrogen, total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, total [as N]weekly averagereport only (mg/L)all year001
Nitrogen, total [as N]monthly averagereport only (lb/d)all year001
Phosphorus, total [as P]monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]weekly averagereport only (mg/L)all year001
Phosphorus, total [as P]monthly averagereport only (lb/d)all year001
Whole effluent toxicity - retest #148-hour minimumreport only (pass=0;fail=1)all year001
Whole effluent toxicity - retest #148-hour minimumreport only (pass=0;fail=1)all year001
Whole effluent toxicity - retest #1monthly average minimumreport only (pass=0;fail=1)all year001
Whole effluent toxicity - retest #1monthly average minimumreport only (pass=0;fail=1)all year001
Whole effluent toxicity - retest #248-hour minimumreport only (pass=0;fail=1)all year001
Whole effluent toxicity - retest #248-hour minimumreport only (pass=0;fail=1)all year001
Whole effluent toxicity - retest #2monthly average minimumreport only (pass=0;fail=1)all year001
Whole effluent toxicity - retest #2monthly average minimumreport only (pass=0;fail=1)all year001
Whole Effluent Toxicity - Retest #348-hour minimumreport only (pass=0;fail=1)all year001
Whole Effluent Toxicity - Retest #348-hour minimumreport only (pass=0;fail=1)all year001
Whole Effluent Toxicity - Retest #3monthly average minimumreport only (pass=0;fail=1)all year001
Whole Effluent Toxicity - Retest #3monthly average minimumreport only (pass=0;fail=1)all year001
Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex48-hour minimumreport only (pass=0;fail=1)all year001
Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulexmonthly average minimumreport only (pass=0;fail=1)all year001
LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas48-hour minimumreport only (pass=0;fail=1)all year001
LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelasmonthly average minimumreport only (pass=0;fail=1)all year001
NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex48-hour minimumreport only (%)all year001
NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulexmonthly average minimumreport only (%)all year001
NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas48-hour minimumreport only (%)all year001
NOAEC Lethal Static Renewal 48Hr acute Pimephales promelasmonthly average minimumreport only (%)all year001
Coef Of Var Static Renewal 48Hr Acute D. pulexmaximumreport only (%)all year001
Coef Of Var Static Renewal 48Hr Acute Pimephales promelasmaximumreport only (%)all year001
Streamflow7-day averagereport only (MGD)all yearSUM
Streamflow7-day averagereport only (MGD)all yearSUM
Streamflow7-day averagereport only (MGD)all yearSUM
Streamflow7-day averagereport only (MGD)all yearSUM
Streamflow7-day averagereport only (MGD)all yearSUM
Streamflow7-day averagereport only (MGD)all yearSUM
Streamflow7-day averagereport only (MGD)all yearSUM
Streamflow7-day averagereport only (MGD)all yearSUM
Streamflow7-day averagereport only (MGD)all yearSUM
Streamflow7-day averagereport only (MGD)all yearSUM
Streamflow7-day averagereport only (MGD)all yearSUM
Streamflow7-day averagereport only (MGD)all yearSUM
Streamflow7-day averagereport only (MGD)all yearSUM
Streamflow7-day averagereport only (MGD)all yearSUM
Streamflow7-day averagereport only (MGD)all yearSUM
Streamflow7-day averagereport only (MGD)all yearSUM
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall yearSUM
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall yearSUM
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall yearSUM
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall yearSUM
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall yearSUM
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall yearSUM
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall yearSUM
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall yearSUM
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall yearSUM
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall yearSUM
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall yearSUM
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall yearSUM
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall yearSUM
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall yearSUM
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall yearSUM
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall yearSUM
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall yearSUM
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall yearSUM
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall yearSUM
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall yearSUM
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall yearSUM
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall yearSUM
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall yearSUM
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall yearSUM
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall yearSUM
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall yearSUM
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall yearSUM
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall yearSUM
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall yearSUM
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall yearSUM
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall yearSUM
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall yearSUM
BOD, 5-day, 20 deg. Cmonthly average≤ 445 lb/dall yearSUM
BOD, 5-day, 20 deg. Cmonthly average≤ 504 lb/dall yearSUM
BOD, 5-day, 20 deg. Cmonthly average≤ 566 lb/dall yearSUM
BOD, 5-day, 20 deg. Cmonthly average≤ 629 lb/dall yearSUM
BOD, 5-day, 20 deg. Cmonthly average≤ 692 lb/dall yearSUM
BOD, 5-day, 20 deg. Cmonthly average≤ 755 lb/dall yearSUM
BOD, 5-day, 20 deg. Cmonthly average≤ 818 lb/dall yearSUM
BOD, 5-day, 20 deg. Cmonthly average≤ 881 lb/dall yearSUM
BOD, 5-day, 20 deg. Cmonthly average≤ 944 lb/dall yearSUM
BOD, 5-day, 20 deg. Cmonthly average≤ 1007 lb/dall yearSUM
BOD, 5-day, 20 deg. Cmonthly average≤ 1133 lb/dall yearSUM
BOD, 5-day, 20 deg. Cmonthly average≤ 1259 lb/dall yearSUM
BOD, 5-day, 20 deg. Cmonthly average≤ 1385 lb/dall yearSUM
BOD, 5-day, 20 deg. Cmonthly average≤ 1511 lb/dall yearSUM
BOD, 5-day, 20 deg. Cmonthly average≤ 1636 lb/dall yearSUM
BOD, 5-day, 20 deg. Cmonthly average≤ 1743 lb/dall yearSUM
pHinstantaneous minimum≥ 6 SUall yearSUM
pHinstantaneous minimum≥ 6 SUall yearSUM
pHinstantaneous minimum≥ 6 SUall yearSUM
pHinstantaneous minimum≥ 6 SUall yearSUM
pHinstantaneous minimum≥ 6 SUall yearSUM
pHinstantaneous minimum≥ 6 SUall yearSUM
pHinstantaneous minimum≥ 6 SUall yearSUM
pHinstantaneous minimum≥ 6 SUall yearSUM
pHinstantaneous minimum≥ 6 SUall yearSUM
pHinstantaneous minimum≥ 6 SUall yearSUM
pHinstantaneous minimum≥ 6 SUall yearSUM
pHinstantaneous minimum≥ 6 SUall yearSUM
pHinstantaneous minimum≥ 6 SUall yearSUM
pHinstantaneous minimum≥ 6 SUall yearSUM
pHinstantaneous minimum≥ 6 SUall yearSUM
pHinstantaneous minimum≥ 6 SUall yearSUM
pHinstantaneous maximum≤ 9 SUall yearSUM
pHinstantaneous maximum≤ 9 SUall yearSUM
pHinstantaneous maximum≤ 9 SUall yearSUM
pHinstantaneous maximum≤ 9 SUall yearSUM
pHinstantaneous maximum≤ 9 SUall yearSUM
pHinstantaneous maximum≤ 9 SUall yearSUM
pHinstantaneous maximum≤ 9 SUall yearSUM
pHinstantaneous maximum≤ 9 SUall yearSUM
pHinstantaneous maximum≤ 9 SUall yearSUM
pHinstantaneous maximum≤ 9 SUall yearSUM
pHinstantaneous maximum≤ 9 SUall yearSUM
pHinstantaneous maximum≤ 9 SUall yearSUM
pHinstantaneous maximum≤ 9 SUall yearSUM
pHinstantaneous maximum≤ 9 SUall yearSUM
pHinstantaneous maximum≤ 9 SUall yearSUM
pHinstantaneous maximum≤ 9 SUall yearSUM
Solids, total suspendedmonthly average≤ 30 mg/Lall yearSUM
Solids, total suspendedmonthly average≤ 30 mg/Lall yearSUM
Solids, total suspendedmonthly average≤ 30 mg/Lall yearSUM
Solids, total suspendedmonthly average≤ 30 mg/Lall yearSUM
Solids, total suspendedmonthly average≤ 30 mg/Lall yearSUM
Solids, total suspendedmonthly average≤ 30 mg/Lall yearSUM
Solids, total suspendedmonthly average≤ 30 mg/Lall yearSUM
Solids, total suspendedmonthly average≤ 30 mg/Lall yearSUM
Solids, total suspendedmonthly average≤ 30 mg/Lall yearSUM
Solids, total suspendedmonthly average≤ 30 mg/Lall yearSUM
Solids, total suspendedmonthly average≤ 30 mg/Lall yearSUM
Solids, total suspendedmonthly average≤ 30 mg/Lall yearSUM
Solids, total suspendedmonthly average≤ 30 mg/Lall yearSUM
Solids, total suspendedmonthly average≤ 30 mg/Lall yearSUM
Solids, total suspendedmonthly average≤ 30 mg/Lall yearSUM
Solids, total suspendedmonthly average≤ 30 mg/Lall yearSUM
Solids, total suspendedweekly average≤ 45 mg/Lall yearSUM
Solids, total suspendedweekly average≤ 45 mg/Lall yearSUM
Solids, total suspendedweekly average≤ 45 mg/Lall yearSUM
Solids, total suspendedweekly average≤ 45 mg/Lall yearSUM
Solids, total suspendedweekly average≤ 45 mg/Lall yearSUM
Solids, total suspendedweekly average≤ 45 mg/Lall yearSUM
Solids, total suspendedweekly average≤ 45 mg/Lall yearSUM
Solids, total suspendedweekly average≤ 45 mg/Lall yearSUM
Solids, total suspendedweekly average≤ 45 mg/Lall yearSUM
Solids, total suspendedweekly average≤ 45 mg/Lall yearSUM
Solids, total suspendedweekly average≤ 45 mg/Lall yearSUM
Solids, total suspendedweekly average≤ 45 mg/Lall yearSUM
Solids, total suspendedweekly average≤ 45 mg/Lall yearSUM
Solids, total suspendedweekly average≤ 45 mg/Lall yearSUM
Solids, total suspendedweekly average≤ 45 mg/Lall yearSUM
Solids, total suspendedweekly average≤ 45 mg/Lall yearSUM
Solids, total suspendedmonthly average≤ 445 lb/dall yearSUM
Solids, total suspendedmonthly average≤ 504 lb/dall yearSUM
Solids, total suspendedmonthly average≤ 566 lb/dall yearSUM
Solids, total suspendedmonthly average≤ 629 lb/dall yearSUM
Solids, total suspendedmonthly average≤ 692 lb/dall yearSUM
Solids, total suspendedmonthly average≤ 755 lb/dall yearSUM
Solids, total suspendedmonthly average≤ 818 lb/dall yearSUM
Solids, total suspendedmonthly average≤ 881 lb/dall yearSUM
Solids, total suspendedmonthly average≤ 944 lb/dall yearSUM
Solids, total suspendedmonthly average≤ 1007 lb/dall yearSUM
Solids, total suspendedmonthly average≤ 1133 lb/dall yearSUM
Solids, total suspendedmonthly average≤ 1259 lb/dall yearSUM
Solids, total suspendedmonthly average≤ 1385 lb/dall yearSUM
Solids, total suspendedmonthly average≤ 1511 lb/dall yearSUM
Solids, total suspendedmonthly average≤ 1636 lb/dall yearSUM
Solids, total suspendedmonthly average≤ 1743 lb/dall yearSUM
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearSUM
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearSUM
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearSUM
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearSUM
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearSUM
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearSUM
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearSUM
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearSUM
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearSUM
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearSUM
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearSUM
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearSUM
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearSUM
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearSUM
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearSUM
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearSUM
Flow, in conduit or thru treatment plantweekly averagereport only (MGD)all yearSUM
Flow, in conduit or thru treatment plantweekly averagereport only (MGD)all yearSUM
Flow, in conduit or thru treatment plantweekly averagereport only (MGD)all yearSUM
Flow, in conduit or thru treatment plantweekly averagereport only (MGD)all yearSUM
Flow, in conduit or thru treatment plantweekly averagereport only (MGD)all yearSUM
Flow, in conduit or thru treatment plantweekly averagereport only (MGD)all yearSUM
Flow, in conduit or thru treatment plantweekly averagereport only (MGD)all yearSUM
Flow, in conduit or thru treatment plantweekly averagereport only (MGD)all yearSUM
Flow, in conduit or thru treatment plantweekly averagereport only (MGD)all yearSUM
Flow, in conduit or thru treatment plantweekly averagereport only (MGD)all yearSUM
Flow, in conduit or thru treatment plantweekly averagereport only (MGD)all yearSUM
Flow, in conduit or thru treatment plantweekly averagereport only (MGD)all yearSUM
Flow, in conduit or thru treatment plantweekly averagereport only (MGD)all yearSUM
Flow, in conduit or thru treatment plantweekly averagereport only (MGD)all yearSUM
Flow, in conduit or thru treatment plantweekly averagereport only (MGD)all yearSUM
Flow, in conduit or thru treatment plantweekly averagereport only (MGD)all yearSUM
Chlorine, total residualmaximum≤ 0 mg/Lall yearSUM
Chlorine, total residualmaximum≤ 0 mg/Lall yearSUM
Chlorine, total residualmaximum≤ 0 mg/Lall yearSUM
Chlorine, total residualmaximum≤ 0 mg/Lall yearSUM
Chlorine, total residualmaximum≤ 0 mg/Lall yearSUM
Chlorine, total residualmaximum≤ 0 mg/Lall yearSUM
Chlorine, total residualmaximum≤ 0 mg/Lall yearSUM
Chlorine, total residualmaximum≤ 0 mg/Lall yearSUM
Chlorine, total residualmaximum≤ 0 mg/Lall yearSUM
Chlorine, total residualmaximum≤ 0 mg/Lall yearSUM
Chlorine, total residualmaximum≤ 0 mg/Lall yearSUM
Chlorine, total residualmaximum≤ 0 mg/Lall yearSUM
Chlorine, total residualmaximum≤ 0 mg/Lall yearSUM
Chlorine, total residualmaximum≤ 0 mg/Lall yearSUM
Chlorine, total residualmaximum≤ 0 mg/Lall yearSUM
Chlorine, total residualmaximum≤ 0 mg/Lall yearSUM
Coliform, fecal generalmonthly average≤ 200 #/100mLall yearSUM
Coliform, fecal generalmonthly average≤ 200 #/100mLall yearSUM
Coliform, fecal generalmonthly average≤ 200 #/100mLall yearSUM
Coliform, fecal generalmonthly average≤ 200 #/100mLall yearSUM
Coliform, fecal generalmonthly average≤ 200 #/100mLall yearSUM
Coliform, fecal generalmonthly average≤ 200 #/100mLall yearSUM
Coliform, fecal generalmonthly average≤ 200 #/100mLall yearSUM
Coliform, fecal generalmonthly average≤ 200 #/100mLall yearSUM
Coliform, fecal generalmonthly average≤ 200 #/100mLall yearSUM
Coliform, fecal generalmonthly average≤ 200 #/100mLall yearSUM
Coliform, fecal generalmonthly average≤ 200 #/100mLall yearSUM
Coliform, fecal generalmonthly average≤ 200 #/100mLall yearSUM
Coliform, fecal generalmonthly average≤ 200 #/100mLall yearSUM
Coliform, fecal generalmonthly average≤ 200 #/100mLall yearSUM
Coliform, fecal generalmonthly average≤ 200 #/100mLall yearSUM
Coliform, fecal generalmonthly average≤ 200 #/100mLall yearSUM
Coliform, fecal generalweekly average≤ 400 #/100mLall yearSUM
Coliform, fecal generalweekly average≤ 400 #/100mLall yearSUM
Coliform, fecal generalweekly average≤ 400 #/100mLall yearSUM
Coliform, fecal generalweekly average≤ 400 #/100mLall yearSUM
Coliform, fecal generalweekly average≤ 400 #/100mLall yearSUM
Coliform, fecal generalweekly average≤ 400 #/100mLall yearSUM
Coliform, fecal generalweekly average≤ 400 #/100mLall yearSUM
Coliform, fecal generalweekly average≤ 400 #/100mLall yearSUM
Coliform, fecal generalweekly average≤ 400 #/100mLall yearSUM
Coliform, fecal generalweekly average≤ 400 #/100mLall yearSUM
Coliform, fecal generalweekly average≤ 400 #/100mLall yearSUM
Coliform, fecal generalweekly average≤ 400 #/100mLall yearSUM
Coliform, fecal generalweekly average≤ 400 #/100mLall yearSUM
Coliform, fecal generalweekly average≤ 400 #/100mLall yearSUM
Coliform, fecal generalweekly average≤ 400 #/100mLall yearSUM
Coliform, fecal generalweekly average≤ 400 #/100mLall yearSUM

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/LA0043982 · MCP: https://passage-data.com/mcp