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Evangeline Parish Police Jury - Wyble Area Subdivision STP

Sewage treatment plant, Ville Platte, Louisiana. NPDES permit LA0122971, in force until Sep 30, 2030. Last 12 months: over a limit 40 times (last June 2026), 2 required values missing. 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
29 values over a limit, 0 required values missing, 0 of 16 reports late

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

All 40 values over a limit
Period endingParameterReportedLimitOver by
October 2025BOD, 5-day, 20 deg. C, monthly average22 mg/L≤ 10 mg/L120%
October 2025BOD, 5-day, 20 deg. C, weekly average31 mg/L≤ 15 mg/L107%
October 2025Coliform, fecal general, monthly geometric mean1540.2 #/100mL≤ 200 #/100mL670%
October 2025Coliform, fecal general, weekly geometric mean2419.6 #/100mL≤ 400 #/100mL505%
November 2025BOD, 5-day, 20 deg. C, monthly average30 mg/L≤ 10 mg/L200%
November 2025BOD, 5-day, 20 deg. C, weekly average30 mg/L≤ 15 mg/L100%
November 2025Coliform, fecal general, monthly geometric mean> 2419.6 #/100mL≤ 200 #/100mL—
November 2025Coliform, fecal general, weekly geometric mean> 2419.6 #/100mL≤ 400 #/100mL—
November 2025Solids, total suspended, monthly average17 mg/L≤ 15 mg/L13%
December 2025BOD, 5-day, 20 deg. C, monthly average23 mg/L≤ 10 mg/L130%
December 2025BOD, 5-day, 20 deg. C, weekly average30 mg/L≤ 15 mg/L100%
December 2025BOD, percent removal [total], monthly average minimum67 %≥ 85 %120%
December 2025Coliform, fecal general, monthly geometric mean> 2419.6 #/100mL≤ 200 #/100mL—
December 2025Coliform, fecal general, weekly geometric mean> 2419.6 #/100mL≤ 400 #/100mL—
December 2025Solids, suspended percent removal, monthly average minimum0 %≥ 85 %567%
December 2025Solids, total suspended, monthly average20 mg/L≤ 15 mg/L33%
December 2025Solids, total suspended, weekly average30 mg/L≤ 23 mg/L30%
January 2026Coliform, fecal general, monthly geometric mean> 2419.6 #/100mL≤ 200 #/100mL—
January 2026Coliform, fecal general, weekly geometric mean> 2419.6 #/100mL≤ 400 #/100mL—
February 2026BOD, 5-day, 20 deg. C, monthly average25 mg/L≤ 10 mg/L150%
February 2026BOD, 5-day, 20 deg. C, weekly average28 mg/L≤ 15 mg/L87%
February 2026Coliform, fecal general, monthly geometric mean> 2419.6 #/100mL≤ 200 #/100mL—
February 2026Coliform, fecal general, weekly geometric mean> 2419.6 #/100mL≤ 400 #/100mL—
March 2026Coliform, fecal general, monthly geometric mean> 2419.6 #/100mL≤ 200 #/100mL—
March 2026Coliform, fecal general, weekly geometric mean> 2419.6 #/100mL≤ 400 #/100mL—
April 2026BOD, 5-day, 20 deg. C, monthly average41 mg/L≤ 10 mg/L310%
April 2026BOD, 5-day, 20 deg. C, weekly average47 mg/L≤ 15 mg/L213%
April 2026Coliform, fecal general, monthly geometric mean> 2419.6 #/100mL≤ 200 #/100mL—
April 2026Coliform, fecal general, weekly geometric mean> 2419.6 #/100mL≤ 400 #/100mL—
April 2026Solids, total suspended, monthly average22 mg/L≤ 15 mg/L47%
May 2026BOD, 5-day, 20 deg. C, monthly average15 mg/L≤ 10 mg/L50%
May 2026BOD, 5-day, 20 deg. C, weekly average20 mg/L≤ 15 mg/L33%
May 2026Coliform, fecal general, monthly geometric mean> 2419.6 #/100mL≤ 200 #/100mL—
May 2026Coliform, fecal general, weekly geometric mean> 2419.6 #/100mL≤ 400 #/100mL—
June 2026BOD, 5-day, 20 deg. C, monthly average35 mg/L≤ 10 mg/L250%
June 2026BOD, 5-day, 20 deg. C, weekly average54 mg/L≤ 15 mg/L260%
June 2026Coliform, fecal general, monthly geometric mean> 2419.6 #/100mL≤ 200 #/100mL—
June 2026Coliform, fecal general, weekly geometric mean> 2419.6 #/100mL≤ 400 #/100mL—
June 2026Solids, total suspended, monthly average20 mg/L≤ 15 mg/L33%
June 2026Solids, total suspended, weekly average34 mg/L≤ 23 mg/L48%

Limits in force (23)

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 averagereport only (mg/L)all year
BOD, 5-day, 20 deg. Cweekly averagereport only (mg/L)all 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 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
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]weekly averagereport only (mg/L)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
BOD, percent removal [total]monthly average minimum≥ 85 %all year
Solids, total dissolvedmonthly averagereport only (mg/L)all year
Solids, total dissolvedweekly averagereport only (mg/L)all year
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year
Coliform, fecal generalweekly geometric mean≤ 400 #/100mLall year
Solids, suspended percent removalmonthly average minimum≥ 85 %all year

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/LA0122971 · MCP: https://passage-data.com/mcp