GULF COAST AUTHORITY

NPDES permit TX0113026 · Major POTW · administratively continued, expires 2025-03-17 · 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 2025-03-17 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 27 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 (236)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]MO MIN >= 4 mg/L all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedDAILY AV report only all year
001Solids, total suspendedDAILY MX report only all year
001Solids, total suspendedDAILY AV <= 1096 lb/d all year
001Solids, total suspendedDAILY MX <= 3216 lb/d all year
001Oil & GreaseDAILY AV report only all year
001Oil & GreaseDAILY MX report only all year
001Oil & GreaseDAILY AV <= 521 lb/d all year
001Oil & GreaseDAILY MX <= 726 lb/d all year
001Nitrogen, ammonia total [as N]DAILY AV report only all year
001Nitrogen, ammonia total [as N]DAILY MX report only all year
001Nitrogen, ammonia total [as N]DAILY AV <= 303 lb/d all year
001Nitrogen, ammonia total [as N]DAILY MX <= 641 lb/d all year
001Carbon, tot organic [TOC]DAILY AV report only all year
001Carbon, tot organic [TOC]DAILY MX report only all year
001Carbon, tot organic [TOC]DAILY AV <= 2563 lb/d all year
001Carbon, tot organic [TOC]DAILY MX <= 4557 lb/d all year
001Aluminum, total [as Al]DAILY AV report only all year
001Aluminum, total [as Al]DAILY MX report only all year
001Aluminum, total [as Al]DAILY AV <= 56.8 lb/d all year
001Aluminum, total [as Al]DAILY MX <= 120 lb/d all year
001Carbon tetrachlorideDAILY AV <= .079 lb/d all year
001Carbon tetrachlorideDAILY MX <= .166 lb/d all year
0011,2-DichloroethaneDAILY AV <= .297 lb/d all year
0011,2-DichloroethaneDAILY MX <= .92 lb/d all year
001ChloroformDAILY AV <= .51 lb/d all year
001ChloroformDAILY MX <= .65 lb/d all year
001TolueneDAILY AV <= .113 lb/d all year
001TolueneDAILY MX <= .349 lb/d all year
001BenzeneDAILY AV <= .161 lb/d all year
001BenzeneDAILY MX <= .593 lb/d all year
001AcenaphthyleneDAILY AV <= .096 lb/d all year
001AcenaphthyleneDAILY MX <= .257 lb/d all year
001AcenaphtheneDAILY AV <= .096 lb/d all year
001AcenaphtheneDAILY MX <= .257 lb/d all year
001AcrylonitrileDAILY AV <= .419 lb/d all year
001AcrylonitrileDAILY MX <= 1.056 lb/d all year
001AnthraceneDAILY AV <= .096 lb/d all year
001AnthraceneDAILY MX <= .257 lb/d all year
001Benzo[b]fluorantheneDAILY AV <= .1 lb/d all year
001Benzo[b]fluorantheneDAILY MX <= .266 lb/d all year
001Benzo[k]fluorantheneDAILY AV <= .096 lb/d all year
001Benzo[k]fluorantheneDAILY MX <= .257 lb/d all year
001Benzo[a]pyreneDAILY AV <= .1 lb/d all year
001Benzo[a]pyreneDAILY MX <= .266 lb/d all year
001ChlorobenzeneDAILY AV <= .065 lb/d all year
001ChlorobenzeneDAILY MX <= .122 lb/d all year
001ChryseneDAILY AV <= .096 lb/d all year
001ChryseneDAILY MX <= .257 lb/d all year
001Diethyl phthalateDAILY AV <= .353 lb/d all year
001Diethyl phthalateDAILY MX <= .886 lb/d all year
001Dimethyl phthalateDAILY AV <= .083 lb/d all year
001Dimethyl phthalateDAILY MX <= .205 lb/d all year
001EthylbenzeneDAILY AV <= .14 lb/d all year
001EthylbenzeneDAILY MX <= .471 lb/d all year
001FluorantheneDAILY AV <= .109 lb/d all year
001FluorantheneDAILY MX <= .297 lb/d all year
001FluoreneDAILY AV <= .096 lb/d all year
001FluoreneDAILY MX <= .257 lb/d all year
001HexachlorobutadieneDAILY AV <= .087 lb/d all year
001HexachlorobutadieneDAILY MX <= .214 lb/d all year
001HexachloroethaneDAILY AV <= .092 lb/d all year
001HexachloroethaneDAILY MX <= .236 lb/d all year
001Methyl chloride [Chloromethane]DAILY AV <= .375 lb/d all year
001Methyl chloride [Chloromethane]DAILY MX <= .829 lb/d all year
001Methylene chlorideDAILY AV <= .174 lb/d all year
001Methylene chlorideDAILY MX <= .388 lb/d all year
001NitrobenzeneDAILY AV <= .118 lb/d all year
001NitrobenzeneDAILY MX <= .297 lb/d all year
001PhenanthreneDAILY AV <= .096 lb/d all year
001PhenanthreneDAILY MX <= .257 lb/d all year
001PyreneDAILY AV <= .109 lb/d all year
001PyreneDAILY MX <= .292 lb/d all year
001TetrachloroethyleneDAILY AV <= .096 lb/d all year
001TetrachloroethyleneDAILY MX <= .244 lb/d all year
0011,1-DichloroethaneDAILY AV <= .096 lb/d all year
0011,1-DichloroethaneDAILY MX <= .257 lb/d all year
0011,1-DichloroethyleneDAILY AV <= .07 lb/d all year
0011,1-DichloroethyleneDAILY MX <= .109 lb/d all year
0011,1,1-TrichloroethaneDAILY AV <= .092 lb/d all year
0011,1,1-TrichloroethaneDAILY MX <= .236 lb/d all year
0011,1,2-TrichloroethaneDAILY AV <= .092 lb/d all year
0011,1,2-TrichloroethaneDAILY MX <= .236 lb/d all year
001Benzo[a]anthraceneDAILY AV <= .096 lb/d all year
001Benzo[a]anthraceneDAILY MX <= .257 lb/d all year
0011,2-DichlorobenzeneDAILY AV <= .336 lb/d all year
0011,2-DichlorobenzeneDAILY MX <= .711 lb/d all year
0011,2-DichloropropaneDAILY AV <= .667 lb/d all year
0011,2-DichloropropaneDAILY MX <= 1.003 lb/d all year
001trans-1,2-DichloroethyleneDAILY AV <= .092 lb/d all year
001trans-1,2-DichloroethyleneDAILY MX <= .236 lb/d all year
0011,2,4-TrichlorobenzeneDAILY AV <= .297 lb/d all year
0011,2,4-TrichlorobenzeneDAILY MX <= .611 lb/d all year
0011,3-DichlorobenzeneDAILY AV <= .135 lb/d all year
0011,3-DichlorobenzeneDAILY MX <= .192 lb/d all year
0011,4-DichlorobenzeneDAILY AV <= .065 lb/d all year
0011,4-DichlorobenzeneDAILY MX <= .122 lb/d all year
0012-ChlorophenolDAILY AV <= .135 lb/d all year
0012-ChlorophenolDAILY MX <= .427 lb/d all year
0012-NitrophenolDAILY AV <= .179 lb/d all year
0012-NitrophenolDAILY MX <= .301 lb/d all year
0012,4-DichlorophenolDAILY AV <= .17 lb/d all year
0012,4-DichlorophenolDAILY MX <= .489 lb/d all year
0012,4-DimethylphenolDAILY AV <= .079 lb/d all year
0012,4-DimethylphenolDAILY MX <= .157 lb/d all year
0012,4-DinitrotolueneDAILY AV <= .493 lb/d all year
0012,4-DinitrotolueneDAILY MX <= 1.243 lb/d all year
0012,4-DinitrophenolDAILY AV <= .31 lb/d all year
0012,4-DinitrophenolDAILY MX <= .537 lb/d all year
0012,6-DinitrotolueneDAILY AV <= 1.112 lb/d all year
0012,6-DinitrotolueneDAILY MX <= 2.796 lb/d all year
0014-NitrophenolDAILY AV <= .314 lb/d all year
0014-NitrophenolDAILY MX <= .541 lb/d all year
0014,6-Dinitro-o-cresolDAILY AV <= .34 lb/d all year
0014,6-Dinitro-o-cresolDAILY MX <= 1.208 lb/d all year
001PhenolDAILY AV <= .065 lb/d all year
001PhenolDAILY MX <= .113 lb/d all year
001NaphthaleneDAILY AV <= .096 lb/d all year
001NaphthaleneDAILY MX <= .257 lb/d all year
001Di[2-ethylhexyl] phthalate [DEHP]DAILY AV <= .449 lb/d all year
001Di[2-ethylhexyl] phthalate [DEHP]DAILY MX <= 1.217 lb/d all year
001Di-n-butyl phthalateDAILY AV <= .118 lb/d all year
001Di-n-butyl phthalateDAILY MX <= .249 lb/d all year
001Vinyl chlorideDAILY AV <= .454 lb/d all year
001Vinyl chlorideDAILY MX <= 1.169 lb/d all year
001TrichloroethyleneDAILY AV <= .092 lb/d all year
001TrichloroethyleneDAILY MX <= .236 lb/d all year
001HexachlorobenzeneDAILY AV <= .065 lb/d all year
001HexachlorobenzeneDAILY MX <= .122 lb/d all year
001Flow, in conduit or thru treatment plantDAILY AV <= 5.6 MGD all year
001Flow, in conduit or thru treatment plantDAILY MX <= 7 MGD all year
001Chlorine, total residualINST MAX < .1 mg/L all year
001Chlorine, total residualMO MIN >= 1 mg/L all year
001E. coliDAILY AV <= 126 CFU/100mL all year
001E. coliDAILY MX <= 394 CFU/100mL all year
0011,3-DichloropropyleneDAILY AV <= .127 lb/d all year
0011,3-DichloropropyleneDAILY MX <= .192 lb/d all year
001Solids, total dissolvedDAILY AV report only all year
001Solids, total dissolvedDAILY MX <= 6000 mg/L all year
001BOD, carbonaceous [5 day, 20 C]DAILY AV report only all year
001BOD, carbonaceous [5 day, 20 C]DAILY MX report only all year
001BOD, carbonaceous [5 day, 20 C]DAILY AV <= 739 lb/d all year
001BOD, carbonaceous [5 day, 20 C]DAILY MX <= 1636 lb/d all year
001ChloroethaneDAILY AV <= .454 lb/d all year
001ChloroethaneDAILY MX <= 1.169 lb/d all year
901BOD, 5-day, 20 deg. CDAILY AV <= 20 mg/L all year
901BOD, 5-day, 20 deg. CDAILY MX <= 60 mg/L all year
901pHMINIMUM >= 6 SU all year
901pHMAXIMUM <= 9 SU all year
901Solids, total suspendedDAILY MX <= 60 mg/L all year
901Oil & GreaseDAILY MX <= 15 mg/L all year
901Carbon, tot organic [TOC]DAILY MX <= 150 mg/L all year
901Carbon tetrachlorideDAILY MX <= .002 mg/L all year
9011,2-DichloroethaneDAILY MX <= .01 mg/L all year
901ChloroformDAILY MX <= .014 mg/L all year
901TolueneDAILY MX <= .01 mg/L all year
901BenzeneDAILY MX <= .01 mg/L all year
901AcenaphthyleneDAILY MX <= .01 mg/L all year
901AcenaphtheneDAILY MX <= .01 mg/L all year
901AcrylonitrileDAILY MX <= .05 mg/L all year
901AnthraceneDAILY MX <= .01 mg/L all year
901Benzo[b]fluorantheneDAILY MX <= .01 mg/L all year
901Benzo[k]fluorantheneDAILY MX <= .005 mg/L all year
901Benzo[a]pyreneDAILY MX <= .005 mg/L all year
901ChlorobenzeneDAILY MX <= .01 mg/L all year
901ChryseneDAILY MX <= .005 mg/L all year
901Diethyl phthalateDAILY MX <= .01 mg/L all year
901Dimethyl phthalateDAILY MX <= .01 mg/L all year
901EthylbenzeneDAILY MX <= .01 mg/L all year
901FluorantheneDAILY MX <= .01 mg/L all year
901FluoreneDAILY MX <= .01 mg/L all year
901HexachlorobutadieneDAILY MX <= .01 mg/L all year
901HexachloroethaneDAILY MX <= .02 mg/L all year
901Methyl chloride [Chloromethane]DAILY MX <= .05 mg/L all year
901Methylene chlorideDAILY MX <= .02 mg/L all year
901NitrobenzeneDAILY MX <= .01 mg/L all year
901PhenanthreneDAILY MX <= .01 mg/L all year
901PyreneDAILY MX <= .01 mg/L all year
901TetrachloroethyleneDAILY MX <= .01 mg/L all year
9011,1-DichloroethaneDAILY MX <= .01 mg/L all year
9011,1-DichloroethyleneDAILY MX <= .01 mg/L all year
9011,1,1-TrichloroethaneDAILY MX <= .01 mg/L all year
9011,1,2-TrichloroethaneDAILY MX <= .01 mg/L all year
901Benzo[a]anthraceneDAILY MX <= .005 mg/L all year
9011,2-DichlorobenzeneDAILY MX <= .01 mg/L all year
9011,2-DichloropropaneDAILY MX <= .01 mg/L all year
901trans-1,2-DichloroethyleneDAILY MX <= .01 mg/L all year
9011,2,4-TrichlorobenzeneDAILY MX <= .01 mg/L all year
9011,3-DichlorobenzeneDAILY MX <= .01 mg/L all year
9011,4-DichlorobenzeneDAILY MX <= .01 mg/L all year
9012-ChlorophenolDAILY MX <= .01 mg/L all year
9012-NitrophenolDAILY MX <= .02 mg/L all year
9012,4-DichlorophenolDAILY MX <= .01 mg/L all year
9012,4-DimethylphenolDAILY MX <= .01 mg/L all year
9012,4-DinitrotolueneDAILY MX <= .01 mg/L all year
9012,4-DinitrophenolDAILY MX <= .05 mg/L all year
9012,6-DinitrotolueneDAILY MX <= .01 mg/L all year
9014-NitrophenolDAILY MX <= .05 mg/L all year
9014,6-Dinitro-o-cresolDAILY MX <= .05 mg/L all year
901PhenolDAILY MX <= .01 mg/L all year
901NaphthaleneDAILY MX <= .01 mg/L all year
901Di[2-ethylhexyl] phthalate [DEHP]DAILY MX <= .01 mg/L all year
901Di-n-butyl phthalateDAILY MX <= .01 mg/L all year
901Vinyl chlorideDAILY MX <= .01 mg/L all year
901TrichloroethyleneDAILY MX <= .01 mg/L all year
901HexachlorobenzeneDAILY MX <= .005 mg/L all year
901Flow, in conduit or thru treatment plantDAILY AV <= 5.6 MGD all year
901Flow, in conduit or thru treatment plantDAILY MX <= 7 MGD all year
901Chlorine, total residualMO MIN >= 1 mg/L all year
901E. coliDAILY AV <= 126 CFU/100mL all year
901E. coliDAILY MX <= 394 CFU/100mL all year
9011,3-DichloropropyleneDAILY MX <= .01 mg/L all year
901Solids, total dissolvedDAILY MX report only all year
901ChloroethaneDAILY MX <= .05 mg/L all year
TX1Whole effluent toxicity - retest #148HR MIN report only all year
TX1Whole effluent toxicity - retest #148HR MIN report only all year
TX1Whole effluent toxicity - retest #1MO AV MN report only all year
TX1Whole effluent toxicity - retest #1MO AV MN report only all year
TX1Whole effluent toxicity - retest #248HR MIN report only all year
TX1Whole effluent toxicity - retest #248HR MIN report only all year
TX1Whole effluent toxicity - retest #2MO AV MN report only all year
TX1Whole effluent toxicity - retest #2MO AV MN report only all year
TX1IC25 Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia magna48HR MIN report only all year
TX1IC25 Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia magnaMO AV MN report only all year
TX1IC25 Lethal Static Renewal 48HR Acute Daphnia magna48HR MIN report only all year
TX1IC25 Lethal Static Renewal 48HR Acute Daphnia magna48HR MIN report only all year
TX1IC25 Lethal Static Renewal 48HR Acute Daphnia magnaMO AV MN report only all year
TX1IC25 Lethal Static Renewal 48HR Acute Daphnia magnaMO AV MN report only all year
TX1IC25 Lethal Static Renewal 48HR Acute Pimephales promelas48HR MIN report only all year
TX1IC25 Lethal Static Renewal 48HR Acute Pimephales promelasMO AV MN report only all year
TXAWhole effluent toxicity - retest #1SINGSAMP report only all year
TXAWhole effluent toxicity - retest #2SINGSAMP report only all year
TXALC50 Pass/Fail Static 24Hr Acute D. PulexSINGSAMP report only all year
TXALC50 Pass/Fail Static 24Hr Acute Pimephales promelasSINGSAMP 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