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La Dept of Public Safety & Corrections

Sewage treatment plant, Dequincy, Louisiana. NPDES permit LA0051161, in force until Sep 30, 2029. Last 12 months: over a limit 32 times (last June 2026), 12 of 12 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A quarterly (13 values), form Q quarterly (6 values)
Last report on file
June 2026
Oct 2024 – Sep 2025
38 values over a limit, 0 required values missing, 9 of 16 reports late

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

All 32 values over a limit
Period endingParameterReportedLimitOver by
October 2025BOD, 5-day, 20 deg. C, monthly average18.58 mg/L≤ 10 mg/L86%
October 2025BOD, 5-day, 20 deg. C, weekly average21.96 mg/L≤ 15 mg/L46%
October 2025Solids, total suspended, monthly average26.5 mg/L≤ 15 mg/L77%
October 2025Solids, total suspended, weekly average28 mg/L≤ 23 mg/L22%
November 2025BOD, 5-day, 20 deg. C, monthly average10.91 mg/L≤ 10 mg/L9%
November 2025Solids, total suspended, monthly average23.42 mg/L≤ 15 mg/L56%
November 2025Solids, total suspended, weekly average24 mg/L≤ 23 mg/L4%
December 2025BOD, 5-day, 20 deg. C, monthly average15.16 mg/L≤ 10 mg/L52%
December 2025BOD, 5-day, 20 deg. C, weekly average28.49 mg/L≤ 15 mg/L90%
December 2025Solids, total suspended, monthly average33 mg/L≤ 15 mg/L120%
December 2025Solids, total suspended, weekly average33 mg/L≤ 23 mg/L43%
January 2026BOD, 5-day, 20 deg. C, monthly average11.7 mg/L≤ 10 mg/L17%
January 2026Solids, total suspended, monthly average20.06 mg/L≤ 15 mg/L34%
February 2026BOD, 5-day, 20 deg. C, monthly average18.7 mg/L≤ 10 mg/L87%
February 2026BOD, 5-day, 20 deg. C, weekly average23.63 mg/L≤ 15 mg/L58%
February 2026Solids, total suspended, monthly average26.06 mg/L≤ 15 mg/L74%
February 2026Solids, total suspended, weekly average34 mg/L≤ 23 mg/L48%
March 2026BOD, 5-day, 20 deg. C, monthly average13.29 mg/L≤ 10 mg/L33%
March 2026Solids, total suspended, monthly average24.35 mg/L≤ 15 mg/L62%
March 2026Solids, total suspended, weekly average28 mg/L≤ 23 mg/L22%
April 2026BOD, 5-day, 20 deg. C, monthly average17.79 mg/L≤ 10 mg/L78%
April 2026BOD, 5-day, 20 deg. C, weekly average24.9 mg/L≤ 15 mg/L66%
April 2026Solids, total suspended, monthly average37.71 mg/L≤ 15 mg/L151%
April 2026Solids, total suspended, weekly average48 mg/L≤ 23 mg/L109%
May 2026BOD, 5-day, 20 deg. C, monthly average20.97 mg/L≤ 10 mg/L110%
May 2026BOD, 5-day, 20 deg. C, weekly average20.97 mg/L≤ 15 mg/L40%
May 2026Solids, total suspended, monthly average33.32 mg/L≤ 15 mg/L122%
May 2026Solids, total suspended, weekly average55 mg/L≤ 23 mg/L139%
June 2026BOD, 5-day, 20 deg. C, monthly average18 mg/L≤ 10 mg/L80%
June 2026BOD, 5-day, 20 deg. C, weekly average25.87 mg/L≤ 15 mg/L72%
June 2026Solids, total suspended, monthly average43.71 mg/L≤ 15 mg/L191%
June 2026Solids, total suspended, weekly average45 mg/L≤ 23 mg/L96%

Limits in force (19)

ParameterStatisticLimitMonths
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. Cmonthly average≤ 30 lb/dall year
pHinstantaneous minimum≥ 6 SUall year
pHinstantaneous maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 15 mg/Lall year
Solids, total suspendedweekly average≤ 23 mg/Lall year
Solids, total suspendedmonthly average≤ 45 lb/dall 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 plantweekly averagereport only (MGD)all year
Chlorine, total residualinstantaneous maximumreport only (mg/L)all year
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year
Coliform, fecal generalweekly geometric mean≤ 400 #/100mLall year

New limits from Oct 1, 2027

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

How strict are these limits?

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

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Your permit document is the final word. As JSON: /api/v1/permits/LA0051161 · MCP: https://passage-data.com/mcp