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Town of Erath

Sewage treatment plant, Erath, Louisiana. NPDES permit LA0115711, in force until Jul 30, 2028. Last 12 months: over a limit 5 times (last March 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A quarterly (6 values), form Q quarterly (2 values)
Renewal application due
Feb 1, 2028 · 180 days before expiry; your permit may set another date
Last report on file
June 2026
Oct 2024 – Sep 2025
1 value over a limit, 0 required values missing, 0 of 16 reports late

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

Period endingParameterReportedLimitOver by
November 2025Solids, total suspended, monthly average37 mg/L≤ 30 mg/L23%
January 2026Solids, total suspended, daily maximum46 mg/L≤ 45 mg/L2%
January 2026Solids, total suspended, monthly average46 mg/L≤ 30 mg/L53%
March 2026Solids, total suspended, daily maximum210 mg/L≤ 45 mg/L367%
March 2026Solids, total suspended, monthly average210 mg/L≤ 30 mg/L600%

Limits in force (8)

ParameterStatisticLimitMonths
pHinstantaneous minimum≥ 6 SUall year
pHinstantaneous maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendeddaily maximum≤ 45 mg/Lall year
Chloride [as Cl]daily maximum≤ 31016 mg/Lall year
Iron, total recoverabledaily maximumreport only (mg/L)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)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/LA0115711 · MCP: https://passage-data.com/mcp