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UOP LLC - Baton Rouge Plant

Industrial Inorganic Chemicals, major discharger, Baton Rouge, Louisiana. NPDES permit LA0041718 expired Aug 31, 2026; its limits still apply. Last 12 months: over a limit 9 times (last June 2026), 24 of 112 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 002 form A monthly (6 values), outfall 003 form A monthly (6 values), outfall 004 form A monthly (6 values), outfall 006 form A monthly (6 values), outfall 006 form Q quarterly (2 values), outfall 007 form A monthly (6 values), and 6 more forms
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 1 of 112 reports late

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

Period endingOutfallParameterReportedLimitOver by
December 2025006Coliform, fecal general, daily maximum2000 #/100mL≤ 400 #/100mL400%
December 2025006Coliform, fecal general, monthly geometric mean496 #/100mL≤ 200 #/100mL148%
December 2025110Solids, total suspended, daily maximum8240 lb/d≤ 4620 lb/d78%
February 2026006Oil & Grease, daily maximum58.8 mg/L≤ 15 mg/L292%
March 2026006Coliform, fecal general, daily maximum1200 #/100mL≤ 400 #/100mL200%
March 2026006Coliform, fecal general, monthly geometric mean1200 #/100mL≤ 200 #/100mL500%
April 2026004Oil & Grease, daily maximum21 mg/L≤ 15 mg/L40%
June 2026110Coliform, fecal general, daily maximum1000 #/100mL≤ 400 #/100mL150%
June 2026110Coliform, fecal general, monthly geometric mean1000 #/100mL≤ 200 #/100mL400%

Limits in force (65)

ParameterStatisticLimitMonthsOutfall
pHinstantaneous minimum≥ 6 SUall year002
pHinstantaneous maximum≤ 10 SUall year002
Oil & Greasedaily maximum≤ 15 mg/Lall year002
Carbon, tot organic [TOC]daily maximum≤ 50 mg/Lall 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
pHinstantaneous minimum≥ 6 SUall year003
pHinstantaneous maximum≤ 10 SUall year003
Oil & Greasedaily maximum≤ 15 mg/Lall year003
Carbon, tot organic [TOC]daily maximum≤ 50 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≤ 10 SUall year004
Oil & Greasedaily maximum≤ 15 mg/Lall year004
Carbon, tot organic [TOC]daily maximum≤ 50 mg/Lall 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
pHinstantaneous minimum≥ 6 SUall year006
pHinstantaneous maximum≤ 10 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 (MGD)all year006
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year006
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year006
Coliform, fecal generaldaily maximum≤ 400 #/100mLall year006
pHinstantaneous minimum≥ 6 SUall year007
pHinstantaneous maximum≤ 10 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 (MGD)all year007
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year007
pHinstantaneous minimum≥ 6 SUall year008
pHinstantaneous maximum≤ 10 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 (MGD)all year008
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year008
pHinstantaneous minimum≥ 6 SUall year010
pHinstantaneous maximum≤ 10 SUall year010
Oil & Greasedaily maximum≤ 15 mL/Lall year010
Carbon, tot organic [TOC]daily maximum≤ 50 mL/Lall year010
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year010
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year010
BOD, 5-day, 20 deg. Cdaily maximum≤ 30 mg/Lall year110
Solids, total suspendedmonthly average≤ 2310 lb/dall year110
Solids, total suspendeddaily maximum≤ 4620 lb/dall year110
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year110
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year110
Whole Effluent Toxicity [WET] - D. pulexmonthly average minimum≥ .06 %all year110
Whole Effluent Toxicity [WET] - D. pulex48-hour minimum≥ .06 %all year110
Whole Effluent Toxicity [WET] - P. promelasmonthly average minimum≥ .06 %all year110
Whole Effluent Toxicity [WET] - P. promelas48-hour minimum≥ .06 %all year110
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year110
Coliform, fecal generaldaily maximum≤ 400 #/100mLall year110
Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulexmonthly average minimumreport only (pass=0;fail=1)all year110
Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex48-hour minimumreport only (pass=0;fail=1)all year110
LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelasmonthly average minimumreport only (pass=0;fail=1)all year110
LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas48-hour minimumreport only (pass=0;fail=1)all year110
NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulexmonthly average minimumreport only (%)all year110
NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex48-hour minimumreport only (%)all year110
NOAEC Lethal Static Renewal 48Hr acute Pimephales promelasmonthly average minimumreport only (%)all year110
NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas48-hour minimumreport only (%)all year110
Coef Of Var Static Renewal 48Hr Acute D. pulexmaximumreport only (%)all year110
Coef Of Var Static Renewal 48Hr Acute Pimephales promelasmaximumreport only (%)all year110

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/LA0041718 · MCP: https://passage-data.com/mcp