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Plain Dealing, Town-WWTP

Sewage treatment plant, Plain Dealing, Louisiana. NPDES permit LA0020044, in force until Apr 14, 2028. Last 12 months: over a limit 18 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form A quarterly (13 values), outfall 001 form Q quarterly (6 values), outfall 002 form A quarterly (3 values)
Renewal application due
Oct 17, 2027 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
2 values over a limit, 0 required values missing, 5 of 28 reports late

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

All 18 values over a limit
Period endingParameterReportedLimitOver by
January 2026Solids, total suspended, monthly average22.43 mg/L≤ 20 mg/L12%
February 2026Solids, total suspended, monthly average24.86 mg/L≤ 20 mg/L24%
April 2026Chlorine, total residual, instantaneous maximum.23 mg/L≤ .033 mg/L597%
April 2026Solids, total suspended, monthly average19.87 mg/L≤ 15 mg/L32%
May 2026Chlorine, total residual, instantaneous maximum.57 mg/L≤ .033 mg/L1627%
June 2026Chlorine, total residual, instantaneous maximum.92 mg/L≤ .033 mg/L2688%
June 2026Coliform, fecal general, weekly geometric mean860 #/100mL≤ 400 #/100mL115%
June 2026Solids, total suspended, monthly average377.63 lb/d≤ 62.6 lb/d503%
June 2026Solids, total suspended, monthly average55.89 mg/L≤ 15 mg/L273%
June 2026Solids, total suspended, weekly average58 mg/L≤ 23 mg/L152%
July 2026BOD, carbonaceous [5 day, 20 C], monthly average17.63 mg/L≤ 10 mg/L76%
July 2026BOD, carbonaceous [5 day, 20 C], weekly average21.34 mg/L≤ 15 mg/L42%
July 2026Chlorine, total residual, instantaneous maximum.13 mg/L≤ .033 mg/L294%
July 2026Coliform, fecal general, monthly geometric mean404 #/100mL≤ 200 #/100mL102%
July 2026Coliform, fecal general, weekly geometric mean960 #/100mL≤ 400 #/100mL140%
July 2026Solids, total suspended, monthly average29.25 mg/L≤ 15 mg/L95%
July 2026Solids, total suspended, weekly average42 mg/L≤ 23 mg/L83%
August 2026Chlorine, total residual, instantaneous maximum.51 mg/L≤ .033 mg/L1445%

Limits in force (22)

ParameterStatisticLimitMonthsOutfall
pHinstantaneous minimum≥ 6 SUall year001
pHinstantaneous maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 15 mg/Lall year001
Solids, total suspendedweekly average≤ 23 mg/Lall year001
Solids, total suspendedmonthly average≤ 62.6 lb/dall year001
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
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantweekly averagereport only (MGD)all year001
Chlorine, total residualinstantaneous maximum≤ .033 mg/Lall year001
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year001
Coliform, fecal generalweekly geometric mean≤ 400 #/100mLall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 15 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 41.7 lb/dall year001
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year002
Nitrogen, ammonia total [as N]weekly averagereport only (mg/L)all year002
Nitrogen, ammonia total [as N]monthly averagereport only (lb/d)all year002

New limits from Apr 15, 2028

ParameterNew limitNew or tighterMedian, last 12 months× new limit
Nitrogen, ammonia total [as N], monthly average1.5 mg/Lnew2.27 mg/L (11 values, 4 below detection)1.51×
Nitrogen, ammonia total [as N], daily maximum3.6 mg/Lnew——
Nitrogen, ammonia total [as N], monthly average6.4 lb/dnew2.41 lb/d (11 values)0.377×

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/LA0020044 · MCP: https://passage-data.com/mcp