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La Dotd

Sewage treatment plant, Chase, Louisiana. NPDES permit LA0069485, in force until Nov 30, 2027. Last 12 months: over a limit 2 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form Q quarterly (10 values), outfall 002 form Q quarterly (8 values), outfall 003 form Q quarterly (8 values), outfall 004 form Q quarterly (12 values), outfall 005 form Q quarterly (6 values), outfall 006 form Q quarterly (6 values), and 4 more forms
Renewal application due
Jun 3, 2027 · 180 days before expiry; your permit may set another date
Last report on file
June 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 20 of 40 reports late

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

Period endingParameterReportedLimitOver by
March 2026Solids, total suspended, daily maximum1600 mg/L≤ 45 mg/L3456%
June 2026Solids, total suspended, daily maximum307 mg/L≤ 45 mg/L582%

Limits in force (74)

ParameterStatisticLimitMonthsOutfall
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year001
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year001
pHinstantaneous minimum≥ 6 SUall year001
pHinstantaneous maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendedweekly average≤ 45 mg/Lall year001
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year001
Flow, in conduit or thru treatment plantweekly averagereport only (gal/d)all year001
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year001
Coliform, fecal generalweekly geometric mean≤ 400 #/100mLall year001
Oxygen demand, chem. [high level] [COD]monthly average≤ 200 mg/Lall year002
Oxygen demand, chem. [high level] [COD]daily maximum≤ 300 mg/Lall year002
pHinstantaneous minimum≥ 6 SUall year002
pHinstantaneous maximum≤ 9 SUall year002
Solids, total suspendeddaily maximum≤ 45 mg/Lall year002
Oil & Greasedaily maximum≤ 15 mg/Lall year002
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year002
Oxygen demand, chem. [high level] [COD]monthly average≤ 200 mg/Lall year003
Oxygen demand, chem. [high level] [COD]daily maximum≤ 300 mg/Lall year003
pHinstantaneous minimum≥ 6 SUall year003
pHinstantaneous maximum≤ 9 SUall year003
Solids, total suspendeddaily maximum≤ 45 mg/Lall year003
Oil & Greasedaily maximum≤ 15 mg/Lall year003
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year003
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year003
pHinstantaneous minimum≥ 6 SUall year004
pHinstantaneous minimum≥ 6 SUall year004
pHinstantaneous maximum≤ 9 SUall year004
pHinstantaneous maximum≤ 9 SUall year004
Oil & Greasedaily maximum≤ 15 mg/Lall year004
Oil & Greasedaily maximum≤ 15 mg/Lall year004
Carbon, tot organic [TOC]daily maximum≤ 50 mg/Lall year004
Carbon, tot organic [TOC]daily maximum≤ 50 mg/Lall year004
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year004
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year004
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year004
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year004
pHinstantaneous minimum≥ 6 SUall year005
pHinstantaneous maximum≤ 9 SUall year005
Oil & Greasedaily maximum≤ 15 mg/Lall year005
Carbon, tot organic [TOC]daily maximum≤ 50 mg/Lall year005
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year005
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year005
pHinstantaneous minimum≥ 6 SUall year006
pHinstantaneous maximum≤ 9 SUall year006
Oil & Greasedaily maximum≤ 15 mg/Lall year006
Carbon, tot organic [TOC]daily maximum≤ 50 mg/Lall year006
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year006
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year006
pHinstantaneous minimum≥ 6 SUall year007
pHinstantaneous maximum≤ 9 SUall year007
Oil & Greasedaily maximum≤ 15 mg/Lall year007
Carbon, tot organic [TOC]daily maximum≤ 50 mg/Lall year007
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year007
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year007
pHinstantaneous minimum≥ 6 SUall year008
pHinstantaneous maximum≤ 9 SUall year008
Oil & Greasedaily maximum≤ 15 mg/Lall year008
Carbon, tot organic [TOC]daily maximum≤ 50 mg/Lall year008
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year008
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year008
pHinstantaneous minimum≥ 6 SUall year009
pHinstantaneous maximum≤ 9 SUall year009
Oil & Greasedaily maximum≤ 15 mg/Lall year009
Carbon, tot organic [TOC]daily maximum≤ 50 mg/Lall year009
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year009
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year009
pHinstantaneous minimum≥ 6 SUall year010
pHinstantaneous maximum≤ 9 SUall year010
Oil & Greasedaily maximum≤ 15 mg/Lall year010
Carbon, tot organic [TOC]daily maximum≤ 50 mg/Lall year010
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year010
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year010

How strict are these limits?

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/LA0069485 · MCP: https://passage-data.com/mcp