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Birla Carbon USA Inc.- North Bend Plant

Carbon Black, Centerville, Louisiana. NPDES permit LA0004154, in force until Mar 31, 2027. Last 12 months: over a limit 3 times (last May 2026), 20 of 72 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form A quarterly (7 values), outfall 001 form Q quarterly (3 values), outfall 002 form A quarterly (10 values), outfall 003 form A quarterly (9 values), outfall 004 form A quarterly (14 values), outfall 004 form Q quarterly (2 values), and 3 more forms
Renewal application due
Oct 2, 2026 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
2 values over a limit, 0 required values missing, 0 of 72 reports late

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

Period endingOutfallParameterReportedLimitOver by
February 2026004Solids, total suspended, daily maximum158 mg/L≤ 100 mg/L58%
February 2026004Solids, total suspended, daily maximum185 mg/L≤ 100 mg/L85%
May 2026003Carbon, tot organic [TOC], daily maximum12.6 mg/L≤ 10 mg/L26%

Limits in force (64)

ParameterStatisticLimitMonthsOutfall
pHinstantaneous minimum≥ 6 SUall year001
pHinstantaneous maximum≤ 9 SUall year001
Solids, total suspendeddaily maximum≤ 135 mg/Lall year001
Oil & Greasedaily maximum≤ 15 mg/Lall year001
Carbon, tot organic [TOC]daily maximum≤ 70 mg/Lall year001
Chloride [as Cl]daily maximum≤ 1000 lb/dall year001
Sulfate, total [as SO4]daily maximum≤ 620 lb/dall year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Solids, total dissolveddaily maximum≤ 4380 lb/dall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year002
BOD, 5-day, 20 deg. Cdaily maximum≤ 45 mg/Lall year002
pHinstantaneous minimum≥ 6 SUall year002
pHinstantaneous maximum≤ 9 SUall year002
Solids, total suspendedmonthly average≤ 30 mg/Lall year002
Solids, total suspendeddaily maximum≤ 45 mg/Lall year002
Flow, in conduit or thru treatment plantmonthly average minimumreport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year002
Coliform, fecal generaldaily maximum≤ 400 #/100mLall year002
pHinstantaneous minimum≥ 6 SUall year003
pHinstantaneous maximum≤ 9 SUall year003
Solids, total suspendedmonthly average≤ 30 mg/Lall year003
Solids, total suspendeddaily maximum≤ 100 mg/Lall year003
Oil & Greasedaily maximum≤ 15 mg/Lall year003
Carbon, tot organic [TOC]daily maximum≤ 10 mg/Lall year003
Carbon, tot organic [TOC]daily maximum≤ 10 mg/Lall year003
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year003
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year003
pHinstantaneous minimum≥ 6 SUall year004
pHinstantaneous maximum≤ 8.5 SUall year004
Solids, total suspendeddaily maximum≤ 100 mg/Lall year004
Solids, total suspendeddaily maximum≤ 100 mg/Lall year004
Magnesium, total [as Mg]monthly averagereport only (mg/L)all year004
Magnesium, total [as Mg]daily maximumreport only (mg/L)all year004
Sodium, total [as Na]monthly averagereport only (mg/L)all year004
Sodium, total [as Na]daily maximumreport only (mg/L)all year004
Chloride [as Cl]monthly averagereport only (mg/L)all year004
Chloride [as Cl]daily maximumreport only (mg/L)all year004
Sulfate, total [as SO4]monthly averagereport only (mg/L)all year004
Sulfate, total [as SO4]daily maximumreport only (mg/L)all year004
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year004
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year004
Solids, total dissolvedmonthly averagereport only (mg/L)all year004
Solids, total dissolveddaily maximumreport only (mg/L)all year004
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year101
BOD, 5-day, 20 deg. Cdaily maximum≤ 45 mg/Lall year101
Solids, total suspendedmonthly average≤ 30 mg/Lall year101
Solids, total suspendeddaily maximum≤ 45 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 CFU/100mLall year101
Coliform, fecal generaldaily maximum≤ 400 CFU/100mLall year101
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year201
BOD, 5-day, 20 deg. Cdaily maximum≤ 45 mg/Lall year201
Solids, total suspendedmonthly average≤ 30 mg/Lall year201
Solids, total suspendeddaily maximum≤ 45 mg/Lall year201
Flow, in conduit or thru treatment plantmonthly average minimumreport only (MGD)all year201
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year201
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year201
Coliform, fecal generaldaily maximum≤ 400 #/100mLall year201
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearINT1
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearINT1
Cooling Water Intake Velocitydaily maximum≤ .5 ft/secall yearINT1

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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