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Southern Ionics Inc. - Lake Charles Facility

Industrial Inorganic Chemicals, Carlyss, Louisiana. NPDES permit LA0127145 expired Oct 31, 2026. Last 12 months: over a limit 5 times (last June 2026), 3 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 87 days after each period: outfall 301 form A quarterly (12 values), outfall 101 form S twice a year
Last report on file
June 2026
Oct 2024 – Sep 2025
3 values over a limit, 0 required values missing, 0 of 14 reports late

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

Period endingParameterReportedLimitOver by
December 2025BOD, 5-day, 20 deg. C, daily maximum110 mg/L≤ 45 mg/L144%
December 2025BOD, 5-day, 20 deg. C, monthly average110 mg/L≤ 30 mg/L267%
December 2025Enterococci, monthly geometric mean52 #/100mL≤ 35 #/100mL49%
December 2025Solids, total suspended, monthly average39.3 mg/L≤ 30 mg/L31%
June 2026Solids, total suspended, monthly average36.5 mg/L≤ 30 mg/L22%

Limits in force (24)

ParameterStatisticLimitMonthsOutfall
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year101
BOD, 5-day, 20 deg. Cdaily maximum≤ 45 mg/Lall year101
pHinstantaneous minimum≥ 6 SUall year101
pHinstantaneous maximum≤ 9 SUall 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 (gal/d)all year101
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year101
Enterococcimonthly geometric mean≤ 35 #/100mLall year101
Enterococcidaily maximum≤ 135 #/100mLall year101
Coliform, fecal generalmonthly average≤ 200 #/100mLall year101
Coliform, fecal generaldaily maximum≤ 400 #/100mLall year101
pHinstantaneous minimum≥ 6 SUall year301
pHinstantaneous minimum≥ 6 SUall year301
pHinstantaneous maximum≤ 9 SUall year301
pHinstantaneous maximum≤ 9 SUall year301
Solids, total suspendedmonthly average≤ 30 mg/Lall year301
Solids, total suspendedmonthly average≤ 30 mg/Lall year301
Solids, total suspendeddaily maximum≤ 45 mg/Lall year301
Solids, total suspendeddaily maximum≤ 45 mg/Lall year301
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year301
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year301
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year301
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year301

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/LA0127145 · MCP: https://passage-data.com/mcp