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Exxon Mobil Corporation - Baton Rouge Refinery

Petroleum Refining, major discharger, Baton Rouge, Louisiana. NPDES permit LA0005584, in force until Oct 31, 2029. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 40 required values missing, 22 of 75 reports late

Limits in force (30)

ParameterStatisticLimitMonthsOutfall
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
pHinstantaneous minimum≥ 6 SUall year003
pHinstantaneous maximum≤ 9 SUall year003
Oil & Greasedaily maximum≤ 15 mg/Lall year003
Carbon, tot organic [TOC]daily maximum≤ 50 mg/Lall year003
Chromium, hexavalent [as Cr]daily maximumreport only (mg/L)all year003
Copper, total [as Cu]daily maximumreport only (mg/L)all year003
Lead, total [as Pb]daily maximumreport only (mg/L)all year003
Zinc, total [as Zn]daily maximumreport only (mg/L)all 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 maximum≤ 9 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 (gal/d)all year004
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year004
pHinstantaneous minimum≥ 6 SUall year103
pHinstantaneous maximum≤ 9 SUall year103
Solids, total suspendeddaily maximum≤ 90 mg/Lall year103
Solids, total suspendeddaily maximum≤ 90 mg/Lall year103
Oil & Greasemonthly averagereport only (mg/L)all year103
Oil & Greasedaily maximum≤ 15 mg/Lall year103
Carbon, tot organic [TOC]daily maximum≤ 50 mg/Lall year103
Lead, total [as Pb]daily maximum≤ 50 ug/Lall year103
Benzenedaily maximum≤ 50 ug/Lall year103
BTEXdaily maximum≤ 250 ug/Lall year103
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year103
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year103

How strict are these limits?

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

Same industry: the 26 Petroleum Refining and Related Industries 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/LA0005584 · MCP: https://passage-data.com/mcp