EXXON MOBIL CORPORATION

NPDES permit TX0007013 · Minor NON-POTW · administratively continued, expires 2025-08-19 · 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 2025-08-19 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 26 forms filed late

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

Reporting

Reports are due about 20 days after each monitoring period ends (the most common figure among TX permits in EPA's filings — check your permit).

Limits in force (244)

OutfallParameterStatisticLimitMonths
003BOD, 5-day, 20 deg. CDAILY AV <= 30 mg/L all year
003BOD, 5-day, 20 deg. CDAILY MX <= 80 mg/L all year
003pHMINIMUM >= 6 SU all year
003pHMAXIMUM <= 9 SU all year
003Solids, total suspendedDAILY AV <= 127 mg/L all year
003Solids, total suspendedDAILY MX <= 283 mg/L all year
003Oil & GreaseDAILY MX <= 15 mg/L all year
003Carbon, tot organic [TOC]DAILY MX <= 55 mg/L all year
003Copper, total [as Cu]DAILY AV <= .00657 mg/L all year
003Copper, total [as Cu]DAILY MX <= .0139 mg/L all year
003Lead, total [as Pb]DAILY AV report only all year
003Lead, total [as Pb]DAILY MX report only all year
003Zinc, total [as Zn]DAILY AV <= .0722 mg/L all year
003Zinc, total [as Zn]DAILY MX <= .152 mg/L all year
003Carbon tetrachlorideDAILY AV <= .015 mg/L all year
003Carbon tetrachlorideDAILY MX <= .032 mg/L all year
0031,2-DichloroethaneDAILY AV <= .135 mg/L all year
0031,2-DichloroethaneDAILY MX <= .285 mg/L all year
003ChloroformDAILY AV <= .111 mg/L all year
003ChloroformDAILY MX <= .325 mg/L all year
003TolueneDAILY AV <= .028 mg/L all year
003TolueneDAILY MX <= .074 mg/L all year
003BenzeneDAILY AV <= .057 mg/L all year
003BenzeneDAILY MX <= .134 mg/L all year
003AcenaphthyleneDAILY AV <= .019 mg/L all year
003AcenaphthyleneDAILY MX <= .047 mg/L all year
003AcenaphtheneDAILY AV <= .019 mg/L all year
003AcenaphtheneDAILY MX <= .047 mg/L all year
003AcrylonitrileDAILY AV <= .0101 mg/L all year
003AcrylonitrileDAILY MX <= .0215 mg/L all year
003AnthraceneDAILY AV <= .019 mg/L all year
003AnthraceneDAILY MX <= .047 mg/L all year
003Benzo[b]fluorantheneDAILY AV <= .02 mg/L all year
003Benzo[b]fluorantheneDAILY MX <= .048 mg/L all year
003Benzo[k]fluorantheneDAILY AV <= .019 mg/L all year
003Benzo[k]fluorantheneDAILY MX <= .047 mg/L all year
003Benzo[a]pyreneDAILY AV <= .0015 mg/L all year
003Benzo[a]pyreneDAILY MX <= .0031 mg/L all year
003ChlorobenzeneDAILY AV <= .142 mg/L all year
003ChlorobenzeneDAILY MX <= .38 mg/L all year
003ChryseneDAILY AV <= .015 mg/L all year
003ChryseneDAILY MX <= .031 mg/L all year
003Diethyl phthalateDAILY AV <= .046 mg/L all year
003Diethyl phthalateDAILY MX <= .113 mg/L all year
003Dimethyl phthalateDAILY AV <= .019 mg/L all year
003Dimethyl phthalateDAILY MX <= .047 mg/L all year
003EthylbenzeneDAILY AV <= .142 mg/L all year
003EthylbenzeneDAILY MX <= .38 mg/L all year
003FluorantheneDAILY AV <= .022 mg/L all year
003FluorantheneDAILY MX <= .054 mg/L all year
003FluoreneDAILY AV <= .019 mg/L all year
003FluoreneDAILY MX <= .047 mg/L all year
003HexachlorobutadieneDAILY AV <= .0067 mg/L all year
003HexachlorobutadieneDAILY MX <= .014 mg/L all year
003HexachloroethaneDAILY AV <= .17 mg/L all year
003HexachloroethaneDAILY MX <= .359 mg/L all year
003Methyl chloride [Chloromethane]DAILY AV <= .11 mg/L all year
003Methyl chloride [Chloromethane]DAILY MX <= .295 mg/L all year
003Methylene chlorideDAILY AV <= .036 mg/L all year
003Methylene chlorideDAILY MX <= .17 mg/L all year
003NitrobenzeneDAILY AV <= .427 mg/L all year
003NitrobenzeneDAILY MX <= .902 mg/L all year
003PhenanthreneDAILY AV <= .0036 mg/L all year
003PhenanthreneDAILY MX <= .0077 mg/L all year
003PyreneDAILY AV <= .02 mg/L all year
003PyreneDAILY MX <= .048 mg/L all year
003TetrachloroethyleneDAILY AV <= .052 mg/L all year
003TetrachloroethyleneDAILY MX <= .164 mg/L all year
0031,1-DichloroethaneDAILY AV <= .022 mg/L all year
0031,1-DichloroethaneDAILY MX <= .059 mg/L all year
0031,1-DichloroethyleneDAILY AV <= .011 mg/L all year
0031,1-DichloroethyleneDAILY MX <= .023 mg/L all year
0031,1,1-TrichloroethaneDAILY AV <= .022 mg/L all year
0031,1,1-TrichloroethaneDAILY MX <= .059 mg/L all year
0031,1,2-TrichloroethaneDAILY AV <= .032 mg/L all year
0031,1,2-TrichloroethaneDAILY MX <= .127 mg/L all year
003Benzo[a]anthraceneDAILY AV <= .0015 mg/L all year
003Benzo[a]anthraceneDAILY MX <= .0031 mg/L all year
0031,2-DichlorobenzeneDAILY AV <= .196 mg/L all year
0031,2-DichlorobenzeneDAILY MX <= .794 mg/L all year
0031,2-DichloropropaneDAILY AV <= .196 mg/L all year
0031,2-DichloropropaneDAILY MX <= .794 mg/L all year
003trans-1,2-DichloroethyleneDAILY AV <= .025 mg/L all year
003trans-1,2-DichloroethyleneDAILY MX <= .066 mg/L all year
0031,2,4-TrichlorobenzeneDAILY AV <= .196 mg/L all year
0031,2,4-TrichlorobenzeneDAILY MX <= .794 mg/L all year
0031,3-DichlorobenzeneDAILY AV <= .142 mg/L all year
0031,3-DichlorobenzeneDAILY MX <= .38 mg/L all year
0031,4-DichlorobenzeneDAILY AV <= .142 mg/L all year
0031,4-DichlorobenzeneDAILY MX <= .38 mg/L all year
0032-NitrophenolDAILY AV <= .065 mg/L all year
0032-NitrophenolDAILY MX <= .231 mg/L all year
0032,4-DimethylphenolDAILY AV <= .019 mg/L all year
0032,4-DimethylphenolDAILY MX <= .047 mg/L all year
0032,4-DinitrophenolDAILY AV <= 1.207 mg/L all year
0032,4-DinitrophenolDAILY MX <= 4.291 mg/L all year
0034-NitrophenolDAILY AV <= .162 mg/L all year
0034-NitrophenolDAILY MX <= .576 mg/L all year
0034,6-Dinitro-o-cresolDAILY AV <= .078 mg/L all year
0034,6-Dinitro-o-cresolDAILY MX <= .277 mg/L all year
003PhenolDAILY AV <= .019 mg/L all year
003PhenolDAILY MX <= .047 mg/L all year
003NaphthaleneDAILY AV <= .019 mg/L all year
003NaphthaleneDAILY MX <= .047 mg/L all year
003Di[2-ethylhexyl] phthalate [DEHP]DAILY AV <= .095 mg/L all year
003Di[2-ethylhexyl] phthalate [DEHP]DAILY MX <= .258 mg/L all year
003Di-n-butyl phthalateDAILY AV <= .02 mg/L all year
003Di-n-butyl phthalateDAILY MX <= .043 mg/L all year
003Vinyl chlorideDAILY AV <= .064 mg/L all year
003Vinyl chlorideDAILY MX <= .136 mg/L all year
003TrichloroethyleneDAILY AV <= .026 mg/L all year
003TrichloroethyleneDAILY MX <= .069 mg/L all year
003HexachlorobenzeneDAILY AV <= .000012 mg/L all year
003HexachlorobenzeneDAILY MX <= .000025 mg/L all year
003Flow, in conduit or thru treatment plantDAILY AV report only all year
003Flow, in conduit or thru treatment plantDAILY MX report only all year
0031,3-DichloropropyleneDAILY AV <= .196 mg/L all year
0031,3-DichloropropyleneDAILY MX <= .794 mg/L all year
003Xylene [mix of m+o+p]DAILY MX <= 1 mg/L all year
003Discharge event observation [Visual Monitoring]MO TOTAL report only all year
003ChloroethaneDAILY AV <= .11 mg/L all year
003ChloroethaneDAILY MX <= .295 mg/L all year
007BOD, 5-day, 20 deg. CDAILY AV <= 30 mg/L all year
007BOD, 5-day, 20 deg. CDAILY MX <= 80 mg/L all year
007pHMINIMUM >= 6 SU all year
007pHMINIMUM >= 6 SU all year
007pHMAXIMUM <= 9 SU all year
007pHMAXIMUM <= 9 SU all year
007Solids, total suspendedDAILY AV <= 127 mg/L all year
007Solids, total suspendedDAILY MX <= 283 mg/L all year
007Oil & GreaseDAILY MX <= 15 mg/L all year
007Oil & GreaseDAILY MX <= 15 mg/L all year
007Carbon, tot organic [TOC]DAILY MX <= 55 mg/L all year
007Carbon, tot organic [TOC]DAILY MX <= 55 mg/L all year
007Carbon tetrachlorideDAILY AV <= .142 mg/L all year
007Carbon tetrachlorideDAILY MX <= .38 mg/L all year
0071,2-DichloroethaneDAILY AV <= .18 mg/L all year
0071,2-DichloroethaneDAILY MX <= .574 mg/L all year
007ChloroformDAILY AV <= .111 mg/L all year
007ChloroformDAILY MX <= .325 mg/L all year
007TolueneDAILY AV <= .028 mg/L all year
007TolueneDAILY MX <= .074 mg/L all year
007BenzeneDAILY AV <= .057 mg/L all year
007BenzeneDAILY MX <= .134 mg/L all year
007AcenaphthyleneDAILY AV <= .019 mg/L all year
007AcenaphthyleneDAILY MX <= .047 mg/L all year
007AcenaphtheneDAILY AV <= .019 mg/L all year
007AcenaphtheneDAILY MX <= .047 mg/L all year
007AcrylonitrileDAILY AV <= .094 mg/L all year
007AcrylonitrileDAILY MX <= .232 mg/L all year
007AnthraceneDAILY AV <= .019 mg/L all year
007AnthraceneDAILY MX <= .047 mg/L all year
007Benzo[k]fluorantheneDAILY AV <= .019 mg/L all year
007Benzo[k]fluorantheneDAILY MX <= .047 mg/L all year
007Benzo[a]pyreneDAILY AV <= .02 mg/L all year
007Benzo[a]pyreneDAILY MX <= .048 mg/L all year
007ChlorobenzeneDAILY AV <= .142 mg/L all year
007ChlorobenzeneDAILY MX <= .38 mg/L all year
007ChryseneDAILY AV <= .019 mg/L all year
007ChryseneDAILY MX <= .047 mg/L all year
007Diethyl phthalateDAILY AV <= .046 mg/L all year
007Diethyl phthalateDAILY MX <= .113 mg/L all year
007Dimethyl phthalateDAILY AV <= .019 mg/L all year
007Dimethyl phthalateDAILY MX <= .047 mg/L all year
007EthylbenzeneDAILY AV <= .142 mg/L all year
007EthylbenzeneDAILY MX <= .38 mg/L all year
007FluorantheneDAILY AV <= .022 mg/L all year
007FluorantheneDAILY MX <= .054 mg/L all year
007FluoreneDAILY AV <= .019 mg/L all year
007FluoreneDAILY MX <= .047 mg/L all year
007HexachlorobutadieneDAILY AV <= .142 mg/L all year
007HexachlorobutadieneDAILY MX <= .38 mg/L all year
007HexachloroethaneDAILY AV <= .196 mg/L all year
007HexachloroethaneDAILY MX <= .794 mg/L all year
007Methyl chloride [Chloromethane]DAILY AV <= .11 mg/L all year
007Methyl chloride [Chloromethane]DAILY MX <= .295 mg/L all year
007Methylene chlorideDAILY AV <= .036 mg/L all year
007Methylene chlorideDAILY MX <= .17 mg/L all year
007NitrobenzeneDAILY AV <= 2.237 mg/L all year
007NitrobenzeneDAILY MX <= 6.402 mg/L all year
007PhenanthreneDAILY AV <= .019 mg/L all year
007PhenanthreneDAILY MX <= .047 mg/L all year
007PyreneDAILY AV <= .02 mg/L all year
007PyreneDAILY MX <= .048 mg/L all year
007TetrachloroethyleneDAILY AV <= .052 mg/L all year
007TetrachloroethyleneDAILY MX <= .164 mg/L all year
0071,1-DichloroethaneDAILY AV <= .022 mg/L all year
0071,1-DichloroethaneDAILY MX <= .059 mg/L all year
0071,1-DichloroethyleneDAILY AV <= .022 mg/L all year
0071,1-DichloroethyleneDAILY MX <= .06 mg/L all year
0071,1,1-TrichloroethaneDAILY AV <= .022 mg/L all year
0071,1,1-TrichloroethaneDAILY MX <= .059 mg/L all year
0071,1,2-TrichloroethaneDAILY AV <= .032 mg/L all year
0071,1,2-TrichloroethaneDAILY MX <= .127 mg/L all year
007Benzo[a]anthraceneDAILY AV <= .019 mg/L all year
007Benzo[a]anthraceneDAILY MX <= .047 mg/L all year
0071,2-DichlorobenzeneDAILY AV <= .196 mg/L all year
0071,2-DichlorobenzeneDAILY MX <= .794 mg/L all year
0071,2-DichloropropaneDAILY AV <= .196 mg/L all year
0071,2-DichloropropaneDAILY MX <= .794 mg/L all year
007trans-1,2-DichloroethyleneDAILY AV <= .025 mg/L all year
007trans-1,2-DichloroethyleneDAILY MX <= .066 mg/L all year
0071,2,4-TrichlorobenzeneDAILY AV <= .196 mg/L all year
0071,2,4-TrichlorobenzeneDAILY MX <= .794 mg/L all year
0071,3-DichlorobenzeneDAILY AV <= .142 mg/L all year
0071,3-DichlorobenzeneDAILY MX <= .38 mg/L all year
0071,4-DichlorobenzeneDAILY AV <= .142 mg/L all year
0071,4-DichlorobenzeneDAILY MX <= .38 mg/L all year
0072-NitrophenolDAILY AV <= .065 mg/L all year
0072-NitrophenolDAILY MX <= .231 mg/L all year
0072,4-DimethylphenolDAILY AV <= .019 mg/L all year
0072,4-DimethylphenolDAILY MX <= .047 mg/L all year
0072,4-DinitrophenolDAILY AV <= 1.207 mg/L all year
0072,4-DinitrophenolDAILY MX <= 4.291 mg/L all year
0074-NitrophenolDAILY AV <= .162 mg/L all year
0074-NitrophenolDAILY MX <= .576 mg/L all year
0074,6-Dinitro-o-cresolDAILY AV <= .078 mg/L all year
0074,6-Dinitro-o-cresolDAILY MX <= .277 mg/L all year
007PhenolDAILY AV <= .019 mg/L all year
007PhenolDAILY MX <= .047 mg/L all year
007NaphthaleneDAILY AV <= .019 mg/L all year
007NaphthaleneDAILY MX <= .047 mg/L all year
007Di[2-ethylhexyl] phthalate [DEHP]DAILY AV <= .095 mg/L all year
007Di[2-ethylhexyl] phthalate [DEHP]DAILY MX <= .258 mg/L all year
007Di-n-butyl phthalateDAILY AV <= .02 mg/L all year
007Di-n-butyl phthalateDAILY MX <= .043 mg/L all year
007Vinyl chlorideDAILY AV <= .097 mg/L all year
007Vinyl chlorideDAILY MX <= .172 mg/L all year
007TrichloroethyleneDAILY AV <= .026 mg/L all year
007TrichloroethyleneDAILY MX <= .069 mg/L all year
007HexachlorobenzeneDAILY AV <= .196 mg/L all year
007HexachlorobenzeneDAILY MX <= .794 mg/L all year
007Flow, in conduit or thru treatment plantDAILY AV report only all year
007Flow, in conduit or thru treatment plantDAILY AV report only all year
007Flow, in conduit or thru treatment plantDAILY MX report only all year
007Flow, in conduit or thru treatment plantDAILY MX report only all year
0071,3-DichloropropyleneDAILY AV <= .196 mg/L all year
0071,3-DichloropropyleneDAILY MX <= .794 mg/L all year
0073,4-BenzofluorantheneDAILY AV <= .02 mg/L all year
0073,4-BenzofluorantheneDAILY MX <= .048 mg/L all year
007Xylene [mix of m+o+p]DAILY MX <= 1 mg/L all year
007Discharge event observation [Visual Monitoring]MO TOTAL report only all year
007ChloroethaneDAILY AV <= .11 mg/L all year
007ChloroethaneDAILY MX <= .295 mg/L 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