Passage Data · Check a report · Use it from your AI

Colfax, Town of

Sewage treatment plant, Colfax, Louisiana. NPDES permit LA0033456 expired Jul 31, 2026; its limits still apply. Last 12 months: over a limit 30 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A quarterly (24 values), form Q quarterly (6 values)
Last report on file
June 2026
Oct 2024 – Sep 2025
7 values over a limit, 0 required values missing, 0 of 16 reports late

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

All 30 values over a limit
Period endingParameterReportedLimitOver by
October 2025Solids, total suspended, monthly average22 mg/L≤ 15 mg/L47%
October 2025Solids, total suspended, weekly average32 mg/L≤ 23 mg/L39%
December 2025Coliform, fecal general, monthly geometric mean308 #/100mL≤ 200 #/100mL54%
December 2025Coliform, fecal general, weekly geometric mean2420 #/100mL≤ 400 #/100mL505%
January 2026BOD, 5-day, 20 deg. C, monthly average37 mg/L≤ 10 mg/L270%
January 2026BOD, 5-day, 20 deg. C, monthly average85 lb/d≤ 25 lb/d240%
January 2026BOD, 5-day, 20 deg. C, weekly average72 mg/L≤ 15 mg/L380%
January 2026Coliform, fecal general, weekly geometric mean2420 #/100mL≤ 400 #/100mL505%
January 2026Solids, total suspended, monthly average254 mg/L≤ 15 mg/L1593%
January 2026Solids, total suspended, monthly average586 lb/d≤ 38 lb/d1442%
January 2026Solids, total suspended, weekly average500 mg/L≤ 23 mg/L2074%
February 2026Solids, total suspended, monthly average32 mg/L≤ 15 mg/L113%
February 2026Solids, total suspended, monthly average99 lb/d≤ 38 lb/d161%
February 2026Solids, total suspended, weekly average51 mg/L≤ 23 mg/L122%
March 2026Solids, total suspended, monthly average16 mg/L≤ 15 mg/L7%
March 2026Solids, total suspended, weekly average26 mg/L≤ 23 mg/L13%
April 2026Solids, total suspended, monthly average22 mg/L≤ 15 mg/L47%
April 2026Solids, total suspended, monthly average40 lb/d≤ 38 lb/d5%
April 2026Solids, total suspended, weekly average29 mg/L≤ 23 mg/L26%
May 2026BOD, 5-day, 20 deg. C, monthly average32 mg/L≤ 10 mg/L220%
May 2026BOD, 5-day, 20 deg. C, monthly average66 lb/d≤ 25 lb/d164%
May 2026BOD, 5-day, 20 deg. C, weekly average36 mg/L≤ 15 mg/L140%
May 2026Coliform, fecal general, weekly geometric mean2420 #/100mL≤ 400 #/100mL505%
May 2026Solids, total suspended, monthly average20 mg/L≤ 15 mg/L33%
May 2026Solids, total suspended, monthly average40 lb/d≤ 38 lb/d5%
May 2026Solids, total suspended, weekly average36 mg/L≤ 23 mg/L57%
June 2026BOD, 5-day, 20 deg. C, monthly average22 mg/L≤ 10 mg/L120%
June 2026BOD, 5-day, 20 deg. C, monthly average49 lb/d≤ 25 lb/d96%
June 2026BOD, 5-day, 20 deg. C, weekly average29 mg/L≤ 15 mg/L93%
June 2026Coliform, fecal general, weekly geometric mean2420 #/100mL≤ 400 #/100mL505%

Limits in force (30)

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≤ 25 lb/dall year
BOD, 5-day, 20 deg. Cmonthly average≤ 25 lb/dall 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≤ 38 lb/dall year
Solids, total suspendedmonthly average≤ 38 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 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
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

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

· Save this facility as a site · Superfund sites nearby · Your permits on one board

On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/LA0033456 · MCP: https://passage-data.com/mcp