EXXON MOBIL CORPORATION

NPDES permit LA0000914 · Major NON-POTW · administratively continued, expires 2025-10-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file
Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

This permit expired on 2025-10-31 and is administratively continued: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

EPA's record, 2025-09-01 to 2026-08-31

1values over a limit
0required values missing, on 0 form(s)
0of 62 forms filed late

Last period with anything received: 2026-08-31. Most often over: Coliform, fecal general (1).

Reporting

Reports are due about 28 days after each monitoring period ends (the most common figure among LA permits in EPA's filings — check your permit).

Limits in force (98)

OutfallParameterStatisticLimitMonths
001BOD, 5-day, 20 deg. CMO AVG <= 144 lb/d all year
001BOD, 5-day, 20 deg. CDAILY MX <= 216 lb/d all year
001Oxygen demand, chem. [high level] [COD]MO AVG <= 1358 lb/d all year
001Oxygen demand, chem. [high level] [COD]DAILY MX <= 2036 lb/d all year
001pHINST MIN report only all year
001pHINST MAX report only all year
001Solids, total suspendedMO AVG <= 257 lb/d all year
001Solids, total suspendedDAILY MX <= 386 lb/d all year
001Oil and greaseMO AVG <= 58 lb/d all year
001Oil and greaseDAILY MX <= 86 lb/d all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Chlorine, total residualMO AVG report only all year
001Chlorine, total residualDAILY MX report only all year
001Whole Effluent Toxicity [WET] - D. pulex48HR MIN >= 41 % all year
001Whole Effluent Toxicity [WET] - D. pulexMO AV MN >= 41 % all year
001Whole Effluent Toxicity [WET] - P. promelas48HR MIN >= 41 % all year
001Whole Effluent Toxicity [WET] - P. promelasMO AV MN >= 41 % all year
001Coliform, fecal generalMOAV GEO <= 200 #/100mL all year
001Coliform, fecal generalDAILY MX <= 400 #/100mL all year
001pH range excursions, > 60 minutesMO TOTAL <= 0 occur/mo all year
001pH range excursions, monthly total accumMO TOTAL <= 446 min all year
001Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex48HR MIN report only all year
001Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulexMO AV MN report only all year
001LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas48HR MIN report only all year
001LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelasMO AV MN report only all year
001NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex48HR MIN report only all year
001NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulexMO AV MN report only all year
001NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas48HR MIN report only all year
001NOAEC Lethal Static Renewal 48Hr acute Pimephales promelasMO AV MN report only all year
001Coef Of Var Static Renewal 48Hr Acute D. pulexMAXIMUM report only all year
001Coef Of Var Static Renewal 48Hr Acute Pimephales promelasMAXIMUM report only all year
010pHINST MIN >= 6 SU all year
010pHINST MAX <= 9 SU all year
010Oil & GreaseDAILY MX <= 15 mg/L all year
010Carbon, tot organic [TOC]DAILY MX <= 50 mg/L all year
010Cadmium, total [as Cd]MO AVG report only all year
010Cadmium, total [as Cd]DAILY MX report only all year
010Copper, total [as Cu]MO AVG report only all year
010Copper, total [as Cu]DAILY MX report only all year
010Lead, total [as Pb]MO AVG report only all year
010Lead, total [as Pb]DAILY MX report only all year
010Zinc, total [as Zn]MO AVG report only all year
010Zinc, total [as Zn]DAILY MX report only all year
010Flow, in conduit or thru treatment plantMO AVG report only all year
010Flow, in conduit or thru treatment plantDAILY MX report only all year
010Chlorine, total residualMO AVG report only all year
010Chlorine, total residualDAILY MX report only all year
010Mercury, total [as Hg]MO AVG report only all year
010Mercury, total [as Hg]DAILY MX report only all year
014pHINST MIN >= 6 SU all year
014pHINST MAX <= 9 SU all year
014Oil & GreaseDAILY MX <= 15 mg/L all year
014Carbon, tot organic [TOC]DAILY MX <= 50 mg/L all year
014Arsenic, total [as As]MO AVG report only all year
014Arsenic, total [as As]DAILY MX report only all year
014Cadmium, total [as Cd]MO AVG report only all year
014Cadmium, total [as Cd]DAILY MX report only all year
014Copper, total [as Cu]MO AVG report only all year
014Copper, total [as Cu]DAILY MX report only all year
014Lead, total [as Pb]MO AVG report only all year
014Lead, total [as Pb]DAILY MX report only all year
014Nickel, total [as Ni]MO AVG report only all year
014Nickel, total [as Ni]DAILY MX report only all year
014Zinc, total [as Zn]MO AVG report only all year
014Zinc, total [as Zn]DAILY MX report only all year
014Flow, in conduit or thru treatment plantMO AVG report only all year
014Flow, in conduit or thru treatment plantDAILY MX report only all year
014Chlorine, total residualMO AVG report only all year
014Chlorine, total residualDAILY MX report only all year
014Mercury, total [as Hg]MO AVG report only all year
014Mercury, total [as Hg]DAILY MX report only all year
015pHINST MIN >= 6 SU all year
015pHINST MAX <= 9 SU all year
015Oil & GreaseDAILY MX <= 15 mg/L all year
015Carbon, tot organic [TOC]DAILY MX <= 50 mg/L all year
015Lead, total [as Pb]MO AVG report only all year
015Lead, total [as Pb]DAILY MX report only all year
015Zinc, total [as Zn]MO AVG report only all year
015Zinc, total [as Zn]DAILY MX report only all year
015Flow, in conduit or thru treatment plantMO AVG report only all year
015Flow, in conduit or thru treatment plantDAILY MX report only all year
020pHINST MIN >= 6 SU all year
020pHINST MAX <= 9 SU all year
020Oil & GreaseDAILY MX <= 15 mg/L all year
020Carbon, tot organic [TOC]DAILY MX <= 50 mg/L all year
020Lead, total [as Pb]MO AVG report only all year
020Lead, total [as Pb]DAILY MX report only all year
020Zinc, total [as Zn]MO AVG report only all year
020Zinc, total [as Zn]DAILY MX report only all year
020Phenolics, total recoverableMO AVG report only all year
020Phenolics, total recoverableDAILY MX report only all year
020Flow, in conduit or thru treatment plantMO AVG report only all year
020Flow, in conduit or thru treatment plantDAILY MX report only all year
020Chlorine, total residualMO AVG report only all year
020Chlorine, total residualDAILY MX report only all year
020Mercury, total [as Hg]MO AVG report only all year
020Mercury, total [as Hg]DAILY MX report only all year

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states