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Clean Water Act discharge permit · NPDES LA0005584

EXXON COMPANY USA BATON ROUGE, Baton Rouge, LA: NPDES LA0005584 discharge permit, effluent exceedances, inspections, penalties

EXXON COMPANY USA BATON ROUGE, held by EXXON CO USA-BATON ROUGE REFINERY, holds NPDES permit LA0005584, which discharges to Mississippi River. EPA’s file records it issued August 30, 2017 and expiring September 30, 2022. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filedEXXON COMPANY USA BATON ROUGE
Permittee as filedEXXON CO USA-BATON ROUGE REFINERY
NPDES IDLA0005584
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMajor discharger
Facility typeNot a publicly owned treatment works
IssuedAugust 30, 2017
Expiration dateSeptember 30, 2022
AddressBaton Rouge, LA 70805
Receiving waterMISSISSIPPI RIVER
Receiving water impaired303(D) Listed
SubwatershedManchac Point (HUC 080701000104)
SIC2911 – Petroleum Refining
Other EPA IDs (FRS)RCRA handler LAD062662887; ICIS-AIR source LA0000002203300015

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.

Effluent limits and exceedances

An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
BOD, 5-day, 20 deg. C2135September 30, 200899,999% over the limit
Sulfide, total [as S]264August 31, 2004224% over the limit
Phenolics, total recoverable2113March 31, 2024242% over the limit
pH891July 31, 2014
Oil and grease091March 31, 20027% over the limit
Solids, total suspended471October 31, 20023% over the limit
Nitrogen, ammonia total [as N]271February 29, 2008119% over the limit
Carbon, tot organic [TOC]321December 31, 201766% over the limit
Oil & Grease511January 31, 202448% over the limit
Flow, in conduit or thru treatment plant10520
Oxygen demand, chem. [high level] [COD]260
Chromium, hexavalent [as Cr]440
Chromium, total [as Cr]440
Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex420
LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas420
NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex420
NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas420
Phosphorus, total [as P]220
Coef Of Var Static Renewal 48Hr Acute D. pulex220
Coef Of Var Static Renewal 48Hr Acute Pimephales promelas220
pH range excursions, > 60 minutes120
pH range excursions, monthly total accum120
Lead, total [as Pb]500
Copper, total [as Cu]400
Zinc, total [as Zn]400
Nitrogen, total [as N]200
Benzene100
BTEX100

Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES LA0005584.

Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.

Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.

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Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

What this page shows

This public-records page covers NPDES permit LA0005584 for EXXON COMPANY USA BATON ROUGE in Baton Rouge, LA, which discharges to the Mississippi River and is listed as a Major Discharger with an administratively continued status. The page lists 27 pollutants under a numeric limit and 9 pollutants with an effluent exceedance.