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Cabot Corporation- Canal Plant

Carbon Black, Franklin, Louisiana. NPDES permit LA0001082 expired Sep 30, 2024; its limits still apply. Last 12 months: over a limit once (last May 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001B form A quarterly (8 values), outfall 002 form Q quarterly (6 values), outfall 101 form A quarterly (8 values), outfall 401B form A quarterly (4 values), outfall 501 form Q quarterly (11 values)
Last report on file
June 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 44 reports late

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

Period endingParameterReportedLimitOver by
May 2026BOD, 5-day, 20 deg. C, daily maximum41 mg/L≤ 30 mg/L37%

Limits in force (37)

ParameterStatisticLimitMonthsOutfall
pHinstantaneous minimum≥ 6 SUall year001B
pHinstantaneous maximum≤ 9 SUall year001B
Solids, total suspendedmonthly averagereport only (mg/L)all year001B
Solids, total suspendeddaily maximumreport only (mg/L)all year001B
Oil & Greasedaily maximum≤ 15 mg/Lall year001B
Carbon, tot organic [TOC]daily maximum≤ 50 mg/Lall year001B
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001B
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001B
pHinstantaneous minimum≥ 6 SUall year002
pHinstantaneous maximum≤ 9 SUall year002
Solids, total suspendedmonthly averagereport only (mg/L)all year002
Solids, total suspendeddaily maximumreport only (mg/L)all year002
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002
BOD, 5-day, 20 deg. Cmonthly average≤ 20 mg/Lall year101
BOD, 5-day, 20 deg. Cdaily maximum≤ 30 mg/Lall year101
Solids, total suspendedmonthly average≤ 20 mg/Lall year101
Solids, total suspendeddaily maximum≤ 30 mg/Lall year101
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year101
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year101
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year101
Coliform, fecal generaldaily maximum≤ 400 #/100mLall year101
Solids, total suspendeddaily maximum≤ 75 mg/Lall year401B
Oil & Greasedaily maximum≤ 15 mg/Lall year401B
Carbon, tot organic [TOC]daily maximum≤ 50 mg/Lall year401B
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year401B
pHinstantaneous minimum≥ 6 SUall year501
pHinstantaneous maximum≤ 9 SUall year501
Solids, total suspendeddaily maximum≤ 90 mg/Lall year501
Solids, total suspendeddaily maximum≤ 90 mg/Lall year501
Oil & Greasedaily maximum≤ 15 mg/Lall year501
Carbon, tot organic [TOC]daily maximum≤ 50 mg/Lall year501
Lead, total [as Pb]daily maximum≤ 50 ug/Lall year501
Benzenedaily maximum≤ 50 ug/Lall year501
BTEXdaily maximum≤ 250 ug/Lall year501
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year501
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year501

How strict are these limits?

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

Same industry: the 130 Chemicals and Allied Products permits in Louisiana.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/LA0001082 · MCP: https://passage-data.com/mcp