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Mansura Town of - Wastewater Treatment Facility

Sewage treatment plant, Mansura, Louisiana. NPDES permit LA0042552, in force until Aug 31, 2031. Last 12 months: no values over a limit, 3 required values missing, 5 of 16 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A quarterly (26 values), form Q quarterly (6 values), form Y yearly
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 1 of 16 reports late

Limits in force (38)

ParameterStatisticLimitMonths
BOD, 5-day, 20 deg. Cmonthly geometric mean≤ 10 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly geometric mean≤ 10 mg/Lall year
BOD, 5-day, 20 deg. Cweekly geometric mean≤ 15 mg/Lall year
BOD, 5-day, 20 deg. Cweekly geometric mean≤ 15 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 50 lb/dall year
BOD, 5-day, 20 deg. Cmonthly average≤ 50 lb/dall year
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year
BOD, 5-day, 20 deg. Cweekly averagereport 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 suspendedweekly average≤ 23 mg/Lall year
Solids, total suspendedweekly average≤ 23 mg/Lall year
Solids, total suspendedmonthly average≤ 75 lb/dall year
Solids, total suspendedmonthly average≤ 75 lb/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendedweekly averagereport only (mg/L)all year
Nitrogen, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, total [as N]weekly averagereport 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]weekly averagereport 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 plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantweekly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantweekly averagereport only (MGD)all year
Chlorine, total residualinstantaneous maximumreport only (mg/L)all year
Chlorine, total residualinstantaneous maximumreport only (mg/L)all year
BOD, percent removal [total]minimum≥ 85 %all year
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year
Coliform, fecal generalweekly geometric mean≤ 400 #/100mLall year
Coliform, fecal generalweekly geometric mean≤ 400 #/100mLall year
Solids, suspended percent removalminimum≥ 85 %all year

New limits from Sep 1, 2029

ParameterNew limitNew or tighterMedian, last 12 months× new limit
Chlorine, total residual, instantaneous maximum0.033 mg/Lnew——

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/LA0042552 · MCP: https://passage-data.com/mcp