Marathon Petroleum Company LP - Louisiana Refining Division

NPDES permit LA0045683 · 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

0values over a limit
0required values missing, on 0 form(s)
0of 221 forms filed late

Last period with anything received: 2026-07-31.

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 (250)

OutfallParameterStatisticLimitMonths
001pHINST MIN >= 6 SU all year
001pHINST MAX <= 9 SU 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
001Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulexMO AV MN report only all year
001Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex48HR MIN report only all year
001LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelasMO AV MN report only all year
001LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas48HR MIN report only all year
001NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulexMO AV MN report only all year
001NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex48HR MIN report only all year
001NOAEC Lethal Static Renewal 48Hr acute Pimephales promelasMO AV MN report only all year
001NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas48HR MIN 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
002pHINST MIN >= 6 SU all year
002pHINST MAX <= 9 SU all year
002Oil & GreaseDAILY MX <= 15 mg/L all year
002Carbon, tot organic [TOC]DAILY MX <= 50 mg/L all year
002Flow, in conduit or thru treatment plantMO AVG report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
003pHINST MIN >= 6 SU all year
003pHINST MAX <= 9 SU all year
003Oil & GreaseDAILY MX <= 15 mg/L all year
003Carbon, tot organic [TOC]DAILY MX <= 50 mg/L all year
003Flow, in conduit or thru treatment plantMO AVG report only all year
003Flow, in conduit or thru treatment plantDAILY MX report only all year
004pHINST MIN >= 6 SU all year
004pHINST MAX <= 9 SU all year
004Oil & GreaseDAILY MX <= 15 mg/L all year
004Carbon, tot organic [TOC]DAILY MX <= 50 mg/L all year
004Flow, in conduit or thru treatment plantMO AVG report only all year
004Flow, in conduit or thru treatment plantDAILY MX report only all year
005pHINST MIN >= 6 SU all year
005pHINST MAX <= 9 SU all year
005Oil & GreaseDAILY MX <= 15 mg/L all year
005Carbon, tot organic [TOC]DAILY MX <= 50 mg/L all year
005Flow, in conduit or thru treatment plantMO AVG report only all year
005Flow, in conduit or thru treatment plantDAILY MX report only all year
006pHINST MIN >= 6 SU all year
006pHINST MAX <= 9 SU all year
006Oil & GreaseDAILY MX <= 15 mg/L all year
006Carbon, tot organic [TOC]DAILY MX <= 50 mg/L all year
006Flow, in conduit or thru treatment plantMO AVG report only all year
006Flow, in conduit or thru treatment plantDAILY MX report only all year
007pHINST MIN >= 6 SU all year
007pHINST MAX <= 9 SU all year
007Oil & GreaseDAILY MX <= 15 mg/L all year
007Carbon, tot organic [TOC]DAILY MX <= 50 mg/L all year
007Flow, in conduit or thru treatment plantMO AVG report only all year
007Flow, in conduit or thru treatment plantDAILY MX report only all year
008pHINST MIN >= 6 SU all year
008pHINST MAX <= 9 SU all year
008Oil & GreaseDAILY MX <= 15 mg/L all year
008Carbon, tot organic [TOC]DAILY MX <= 50 mg/L all year
008Flow, in conduit or thru treatment plantMO AVG report only all year
008Flow, in conduit or thru treatment plantDAILY MX report only all year
011pHINST MIN >= 6 SU all year
011pHINST MIN >= 6 SU all year
011pHINST MAX <= 9 SU all year
011pHINST MAX <= 9 SU all year
011Solids, total suspendedDAILY MX <= 90 mg/L all year
011Solids, total suspendedDAILY MX <= 90 mg/L all year
011Solids, total suspendedDAILY MX <= 90 mg/L all year
011Solids, total suspendedDAILY MX <= 90 mg/L all year
011Oil & GreaseDAILY MX <= 15 mg/L all year
011Oil & GreaseDAILY MX <= 15 mg/L all year
011Carbon, tot organic [TOC]DAILY MX <= 50 mg/L all year
011Carbon, tot organic [TOC]DAILY MX <= 50 mg/L all year
011Lead, total [as Pb]DAILY MX <= 50 ug/L all year
011Lead, total [as Pb]DAILY MX <= 50 ug/L all year
011BenzeneDAILY MX <= 50 ug/L all year
011BenzeneDAILY MX <= 50 ug/L all year
011BTEXDAILY MX <= 250 ug/L all year
011BTEXDAILY MX <= 250 ug/L all year
011Flow, in conduit or thru treatment plantMO AVG report only all year
011Flow, in conduit or thru treatment plantMO AVG report only all year
011Flow, in conduit or thru treatment plantDAILY MX report only all year
011Flow, in conduit or thru treatment plantDAILY MX report only all year
012pHINST MIN >= 6 SU all year
012pHINST MAX <= 9 SU all year
012Oil & GreaseDAILY MX <= 15 mg/L all year
012Carbon, tot organic [TOC]DAILY MX <= 50 mg/L all year
012Flow, in conduit or thru treatment plantMO AVG report only all year
012Flow, in conduit or thru treatment plantDAILY MX report only all year
013pHINST MIN >= 6 SU all year
013pHINST MAX <= 9 SU all year
013Oil & GreaseDAILY MX <= 15 mg/L all year
013Carbon, tot organic [TOC]DAILY MX <= 50 mg/L all year
013Flow, in conduit or thru treatment plantMO AVG report only all year
013Flow, in conduit or thru treatment plantDAILY MX report only all year
04ApHINST MIN >= 6 SU all year
04ApHINST MAX <= 9 SU all year
04AOil & GreaseDAILY MX <= 15 mg/L all year
04ACarbon, tot organic [TOC]DAILY MX <= 50 mg/L all year
04AFlow, in conduit or thru treatment plantMO AVG report only all year
04AFlow, in conduit or thru treatment plantDAILY MX report only all year
04BpHINST MIN >= 6 SU all year
04BpHINST MAX <= 9 SU all year
04BOil & GreaseDAILY MX <= 15 mg/L all year
04BCarbon, tot organic [TOC]DAILY MX <= 50 mg/L all year
04BFlow, in conduit or thru treatment plantMO AVG report only all year
04BFlow, in conduit or thru treatment plantDAILY MX report only all year
101BOD, 5-day, 20 deg. CMO AVG <= 3969 lb/d all year
101BOD, 5-day, 20 deg. CDAILY MX <= 7238 lb/d all year
101Oxygen demand, chem. [high level] [COD]MO AVG <= 27447 lb/d all year
101Oxygen demand, chem. [high level] [COD]DAILY MX <= 53343 lb/d all year
101pHMINIMUM report only all year
101pHMAXIMUM report only all year
101Solids, total suspendedMO AVG <= 3197 lb/d all year
101Solids, total suspendedDAILY MX <= 5084 lb/d all year
101Oil & GreaseMO AVG <= 1178 lb/d all year
101Oil & GreaseDAILY MX <= 2188 lb/d all year
101Nitrogen, total [as N]MO AVG report only all year
101Nitrogen, total [as N]DAILY MX report only all year
101Nitrogen, ammonia total [as N]MO AVG <= 2561 lb/d all year
101Nitrogen, ammonia total [as N]DAILY MX <= 5632 lb/d all year
101Phosphorus, total [as P]MO AVG report only all year
101Phosphorus, total [as P]DAILY MX report only all year
101Sulfide, total [as S]MO AVG <= 20.5 lb/d all year
101Sulfide, total [as S]DAILY MX <= 45.6 lb/d all year
101Chromium, hexavalent [as Cr]MO AVG <= 3.5 lb/d all year
101Chromium, hexavalent [as Cr]DAILY MX <= 7.9 lb/d all year
101Chromium, total [as Cr]MO AVG <= 45.8 lb/d all year
101Chromium, total [as Cr]DAILY MX <= 106.8 lb/d all year
101Phenolics, total recoverableMO AVG <= 25.7 lb/d all year
101Phenolics, total recoverableDAILY MX <= 53.1 lb/d all year
101Flow, in conduit or thru treatment plantMO AVG report only all year
101Flow, in conduit or thru treatment plantDAILY MX report only all year
101pH range excursions, > 60 minutesMO TOTAL <= 0 occur/mo all year
101pH range excursions, monthly total accumMO TOTAL <= 446 min all year
201Flow, in conduit or thru treatment plantMO AVG report only all year
201Flow, in conduit or thru treatment plantDAILY MX report only all year
301Carbon tetrachlorideMO AVG <= .05 lb/d all year
301Carbon tetrachlorideDAILY MX <= .12 lb/d all year
3011,2-DichloroethaneMO AVG <= .06 lb/d all year
3011,2-DichloroethaneDAILY MX <= .19 lb/d all year
301ChloroformMO AVG <= .04 lb/d all year
301ChloroformDAILY MX <= .11 lb/d all year
301TolueneMO AVG <= .01 lb/d all year
301TolueneDAILY MX <= .02 lb/d all year
301BenzeneMO AVG <= .02 lb/d all year
301BenzeneDAILY MX <= .04 lb/d all year
301AcenaphthyleneMO AVG <= .01 lb/d all year
301AcenaphthyleneDAILY MX <= .02 lb/d all year
301AcenaphtheneMO AVG <= .01 lb/d all year
301AcenaphtheneDAILY MX <= .02 lb/d all year
301AcrylonitrileMO AVG <= .03 lb/d all year
301AcrylonitrileDAILY MX <= .08 lb/d all year
301AnthraceneMO AVG <= .01 lb/d all year
301AnthraceneDAILY MX <= .02 lb/d all year
301Benzo[b]fluorantheneMO AVG <= .01 lb/d all year
301Benzo[b]fluorantheneDAILY MX <= .02 lb/d all year
301Benzo[k]fluorantheneMO AVG <= .01 lb/d all year
301Benzo[k]fluorantheneDAILY MX <= .02 lb/d all year
301Benzo[a]pyreneMO AVG <= .01 lb/d all year
301Benzo[a]pyreneDAILY MX <= .02 lb/d all year
301ChlorobenzeneMO AVG <= .05 lb/d all year
301ChlorobenzeneDAILY MX <= .12 lb/d all year
301ChryseneMO AVG <= .01 lb/d all year
301ChryseneDAILY MX <= .02 lb/d all year
301Diethyl phthalateMO AVG <= .01 lb/d all year
301Diethyl phthalateDAILY MX <= .04 lb/d all year
301Dimethyl phthalateMO AVG <= .01 lb/d all year
301Dimethyl phthalateDAILY MX <= .02 lb/d all year
301EthylbenzeneMO AVG <= .05 lb/d all year
301EthylbenzeneDAILY MX <= .12 lb/d all year
301FluorantheneMO AVG <= .01 lb/d all year
301FluorantheneDAILY MX <= .02 lb/d all year
301FluoreneMO AVG <= .01 lb/d all year
301FluoreneDAILY MX <= .02 lb/d all year
301HexachlorobutadieneMO AVG <= .05 lb/d all year
301HexachlorobutadieneDAILY MX <= .12 lb/d all year
301HexachloroethaneMO AVG <= .06 lb/d all year
301HexachloroethaneDAILY MX <= .26 lb/d all year
301Methyl chloride [Chloromethane]MO AVG <= .04 lb/d all year
301Methyl chloride [Chloromethane]DAILY MX <= .1 lb/d all year
301Methylene chlorideMO AVG <= .01 lb/d all year
301Methylene chlorideDAILY MX <= .06 lb/d all year
301NitrobenzeneMO AVG <= .73 lb/d all year
301NitrobenzeneDAILY MX <= 2.08 lb/d all year
301PhenanthreneMO AVG <= .01 lb/d all year
301PhenanthreneDAILY MX <= .02 lb/d all year
301PyreneMO AVG <= .01 lb/d all year
301PyreneDAILY MX <= .02 lb/d all year
301TetrachloroethyleneMO AVG <= .02 lb/d all year
301TetrachloroethyleneDAILY MX <= .05 lb/d all year
3011,1-DichloroethaneMO AVG <= .01 lb/d all year
3011,1-DichloroethaneDAILY MX <= .02 lb/d all year
3011,1-DichloroethyleneMO AVG <= .01 lb/d all year
3011,1-DichloroethyleneDAILY MX <= .02 lb/d all year
3011,1,1-TrichloroethaneMO AVG <= .01 lb/d all year
3011,1,1-TrichloroethaneDAILY MX <= .02 lb/d all year
3011,1,2-TrichloroethaneMO AVG <= .01 lb/d all year
3011,1,2-TrichloroethaneDAILY MX <= .04 lb/d all year
301Benzo[a]anthraceneMO AVG <= .01 lb/d all year
301Benzo[a]anthraceneDAILY MX <= .02 lb/d all year
3011,2-DichlorobenzeneMO AVG <= .06 lb/d all year
3011,2-DichlorobenzeneDAILY MX <= .26 lb/d all year
3011,2-DichloropropaneMO AVG <= .06 lb/d all year
3011,2-DichloropropaneDAILY MX <= .26 lb/d all year
301trans-1,2-DichloroethyleneMO AVG <= .01 lb/d all year
301trans-1,2-DichloroethyleneDAILY MX <= .02 lb/d all year
3011,2,4-TrichlorobenzeneMO AVG <= .06 lb/d all year
3011,2,4-TrichlorobenzeneDAILY MX <= .26 lb/d all year
3011,3-DichlorobenzeneMO AVG <= .05 lb/d all year
3011,3-DichlorobenzeneDAILY MX <= .12 lb/d all year
3011,4-DichlorobenzeneMO AVG <= .05 lb/d all year
3011,4-DichlorobenzeneDAILY MX <= .12 lb/d all year
3012-NitrophenolMO AVG <= .02 lb/d all year
3012-NitrophenolDAILY MX <= .08 lb/d all year
3012,4-DimethylphenolMO AVG <= .01 lb/d all year
3012,4-DimethylphenolDAILY MX <= .02 lb/d all year
3012,4-DinitrophenolMO AVG <= .39 lb/d all year
3012,4-DinitrophenolDAILY MX <= 1.4 lb/d all year
3014-NitrophenolMO AVG <= .05 lb/d all year
3014-NitrophenolDAILY MX <= .19 lb/d all year
3014,6-Dinitro-o-cresolMO AVG <= .03 lb/d all year
3014,6-Dinitro-o-cresolDAILY MX <= .09 lb/d all year
301PhenolMO AVG <= .01 lb/d all year
301PhenolDAILY MX <= .02 lb/d all year
301NaphthaleneMO AVG <= .01 lb/d all year
301NaphthaleneDAILY MX <= .02 lb/d all year
301Di[2-ethylhexyl] phthalate [DEHP]MO AVG <= .03 lb/d all year
301Di[2-ethylhexyl] phthalate [DEHP]DAILY MX <= .08 lb/d all year
301Di-n-butyl phthalateMO AVG <= .01 lb/d all year
301Di-n-butyl phthalateDAILY MX <= .01 lb/d all year
301Vinyl chlorideMO AVG <= .03 lb/d all year
301Vinyl chlorideDAILY MX <= .06 lb/d all year
301TrichloroethyleneMO AVG <= .01 lb/d all year
301TrichloroethyleneDAILY MX <= .02 lb/d all year
301HexachlorobenzeneMO AVG <= .06 lb/d all year
301HexachlorobenzeneDAILY MX <= .26 lb/d all year
301Flow, in conduit or thru treatment plantMO AVG report only all year
301Flow, in conduit or thru treatment plantDAILY MX report only all year
3011,3-DichloropropyleneMO AVG <= .06 lb/d all year
3011,3-DichloropropyleneDAILY MX <= .26 lb/d all year
301ChloroethaneMO AVG <= .04 lb/d all year
301ChloroethaneDAILY MX <= .1 lb/d all year
401Flow, in conduit or thru treatment plantMO AVG report only all year
401Flow, in conduit or thru treatment plantDAILY MX report only all year
CT24Cycles Of ConcentrationMO AV MN >= 3 c all year
CT25Cycles Of ConcentrationMO AV MN >= 3 c all year
CT26Cycles Of ConcentrationMO AV MN >= 3 c all year
CT27Cycles Of ConcentrationMO AV MN >= 2 c all year
CT28Cycles Of ConcentrationMO AV MN >= 3 c all year
CT29Cycles Of ConcentrationMO AV MN >= 3 c all year
CT30Cycles Of ConcentrationMO AV MN >= 3 c all year
CT31Cycles Of ConcentrationMO AV MN >= 3 c all year
CT32Cycles Of ConcentrationMO AV MN >= 3 c all year
CT33Cycles Of ConcentrationMO AV MN >= 3 c 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