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Roseland Town of - WWTP

Sewage treatment plant, Roseland, Louisiana. NPDES permit LA0100790, in force until Jul 31, 2031. Last 12 months: over a limit 29 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A quarterly, form Q quarterly, form Y yearly
Last report on file
June 2026
Oct 2024 – Sep 2025
39 values over a limit, 0 required values missing, 4 of 16 reports late

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

All 29 values over a limit
Period endingParameterReportedLimitOver by
October 2025BOD, 5-day, 20 deg. C, monthly average17.4 mg/L≤ 10 mg/L74%
October 2025BOD, 5-day, 20 deg. C, monthly average27.6 lb/d≤ 17 lb/d62%
October 2025BOD, 5-day, 20 deg. C, weekly average23 mg/L≤ 15 mg/L53%
October 2025Solids, total suspended, monthly average34.8 lb/d≤ 25 lb/d39%
October 2025Solids, total suspended, monthly average39 mg/L≤ 15 mg/L160%
October 2025Solids, total suspended, weekly average53 mg/L≤ 23 mg/L130%
November 2025Solids, total suspended, monthly average< 35.3 mg/L≤ 15 mg/L135%
November 2025Solids, total suspended, weekly average< 50 mg/L≤ 23 mg/L117%
December 2025Solids, total suspended, monthly average< 29.3 lb/d≤ 25 lb/d17%
December 2025Solids, total suspended, monthly average< 32.5 mg/L≤ 15 mg/L117%
December 2025Solids, total suspended, weekly average< 35.7 mg/L≤ 23 mg/L55%
January 2026Solids, total suspended, monthly average17.3 mg/L≤ 15 mg/L15%
March 2026Solids, total suspended, monthly average28.4 mg/L≤ 15 mg/L89%
March 2026Solids, total suspended, weekly average41.3 mg/L≤ 23 mg/L80%
April 2026BOD, 5-day, 20 deg. C, monthly average17.8 mg/L≤ 10 mg/L78%
April 2026BOD, 5-day, 20 deg. C, weekly average18.6 mg/L≤ 15 mg/L24%
April 2026Coliform, fecal general, weekly geometric mean3000 #/100mL≤ 400 #/100mL650%
April 2026Solids, total suspended, monthly average34.1 lb/d≤ 25 lb/d36%
April 2026Solids, total suspended, monthly average42.5 mg/L≤ 15 mg/L183%
April 2026Solids, total suspended, weekly average53 mg/L≤ 23 mg/L130%
May 2026BOD, 5-day, 20 deg. C, weekly average21 mg/L≤ 15 mg/L40%
May 2026Coliform, fecal general, weekly geometric mean800 #/100mL≤ 400 #/100mL100%
May 2026Solids, total suspended, weekly average42 mg/L≤ 23 mg/L83%
June 2026BOD, 5-day, 20 deg. C, monthly average19 mg/L≤ 10 mg/L90%
June 2026BOD, 5-day, 20 deg. C, monthly average25.8 lb/d≤ 17 lb/d52%
June 2026BOD, 5-day, 20 deg. C, weekly average20 mg/L≤ 15 mg/L33%
June 2026Solids, total suspended, monthly average21 mg/L≤ 15 mg/L40%
June 2026Solids, total suspended, monthly average27.4 lb/d≤ 25 lb/d10%
June 2026Solids, total suspended, weekly average24 mg/L≤ 23 mg/L4%

Limits in force (41)

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. Cweekly average≤ 15 mg/Lall year
BOD, 5-day, 20 deg. Cweekly average≤ 15 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 17 lb/dall year
BOD, 5-day, 20 deg. Cmonthly average≤ 17 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≤ 25 lb/dall year
Solids, total suspendedmonthly average≤ 25 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
Mercury, total [as Hg]monthly averagereport only (mg/L)all year
Mercury, total [as Hg]weekly averagereport only (mg/L)all year
Mercury, total [as Hg]monthly averagereport only (lb/d)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 Aug 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.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/LA0100790 · MCP: https://passage-data.com/mcp