CHEVRON PHILLIPS CHEMICAL COMPANY LP

NPDES permit TX0135917 · Major NON-POTW · administratively continued, expires 2026-06-29 · 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 2026-06-29 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 53 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 (305)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]MO MIN >= 3 mg/L all year
001BOD, 5-day, 20 deg. CDAILY AV <= 18 mg/L all year
001BOD, 5-day, 20 deg. CDAILY MX <= 40 mg/L all year
001pHMINIMUM >= 5 SU all year
001pHMAXIMUM <= 11 SU all year
001Zinc, total [as Zn]DAILY AV <= .188 mg/L all year
001Zinc, total [as Zn]DAILY MX <= .399 mg/L all year
001Benzo[a]pyreneDAILY AV <= .00004 mg/L all year
001Benzo[a]pyreneDAILY MX <= .000086 mg/L all year
001Benzo[a]pyreneDAILY AV <= .000094 lb/d all year
001Benzo[a]pyreneDAILY MX <= .0002 lb/d all year
001HexachlorobutadieneDAILY AV <= .0036 mg/L all year
001HexachlorobutadieneDAILY MX <= .0075 mg/L all year
001HexachlorobutadieneDAILY AV <= .0085 lb/d all year
001HexachlorobutadieneDAILY MX <= .02 lb/d all year
001HexachloroethaneDAILY AV <= .038 mg/L all year
001HexachloroethaneDAILY MX <= .08 mg/L all year
001HexachloroethaneDAILY AV <= .089 lb/d all year
001HexachloroethaneDAILY MX <= .19 lb/d all year
001PhenanthreneDAILY AV <= .0253 mg/L all year
001PhenanthreneDAILY MX <= .0535 mg/L all year
001PhenanthreneDAILY AV <= .06 lb/d all year
001PhenanthreneDAILY MX <= .13 lb/d all year
001Benzo[a]anthraceneDAILY AV <= .0004 mg/L all year
001Benzo[a]anthraceneDAILY MX <= .00086 mg/L all year
001Benzo[a]anthraceneDAILY AV <= .00094 lb/d all year
001Benzo[a]anthraceneDAILY MX <= .002 lb/d all year
001HexachlorobenzeneDAILY AV <= .000011 mg/L all year
001HexachlorobenzeneDAILY MX <= .000023 mg/L all year
001HexachlorobenzeneDAILY AV <= .000026 lb/d all year
001HexachlorobenzeneDAILY MX <= .000054 lb/d all year
001Flow, in conduit or thru treatment plantDAILY AV report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Chlorine, free availableDAILY AV <= .2 mg/L all year
001Chlorine, free availableDAILY MX <= .5 mg/L all year
002pHMINIMUM >= 5 SU all year
002pHMAXIMUM <= 11 SU all year
002Zinc, total [as Zn]DAILY AV <= .245 mg/L all year
002Zinc, total [as Zn]DAILY MX <= .52 mg/L all year
002Carbon tetrachlorideDAILY AV <= .142 mg/L all year
002Carbon tetrachlorideDAILY MX <= .38 mg/L all year
0021,2-DichloroethaneDAILY AV <= .18 mg/L all year
0021,2-DichloroethaneDAILY MX <= .574 mg/L all year
002ChloroformDAILY AV <= .111 mg/L all year
002ChloroformDAILY MX <= .325 mg/L all year
002TolueneDAILY AV <= .028 mg/L all year
002TolueneDAILY MX <= .074 mg/L all year
002BenzeneDAILY AV <= .057 mg/L all year
002BenzeneDAILY MX <= .134 mg/L all year
002AcenaphthyleneDAILY AV <= .019 mg/L all year
002AcenaphthyleneDAILY MX <= .047 mg/L all year
002AcenaphtheneDAILY AV <= .019 mg/L all year
002AcenaphtheneDAILY MX <= .047 mg/L all year
002AcrylonitrileDAILY AV <= .094 mg/L all year
002AcrylonitrileDAILY MX <= .232 mg/L all year
002AnthraceneDAILY AV <= .019 mg/L all year
002AnthraceneDAILY MX <= .047 mg/L all year
002Benzo[k]fluorantheneDAILY AV <= .19 mg/L all year
002Benzo[k]fluorantheneDAILY MX <= .047 mg/L all year
002Benzo[a]pyreneDAILY AV <= .000085 mg/L all year
002Benzo[a]pyreneDAILY MX <= .000181 mg/L all year
002ChlorobenzeneDAILY AV <= .142 mg/L all year
002ChlorobenzeneDAILY MX <= .38 mg/L all year
002ChryseneDAILY AV <= .019 mg/L all year
002ChryseneDAILY MX <= .047 mg/L all year
002Diethyl phthalateDAILY AV <= .046 mg/L all year
002Diethyl phthalateDAILY MX <= .113 mg/L all year
002Dimethyl phthalateDAILY AV <= .019 mg/L all year
002Dimethyl phthalateDAILY MX <= .047 mg/L all year
002EthylbenzeneDAILY AV <= .142 mg/L all year
002EthylbenzeneDAILY MX <= .38 mg/L all year
002FluorantheneDAILY AV <= .022 mg/L all year
002FluorantheneDAILY MX <= .054 mg/L all year
002FluoreneDAILY AV <= .019 mg/L all year
002FluoreneDAILY MX <= .047 mg/L all year
002HexachlorobutadieneDAILY AV <= .00752 mg/L all year
002HexachlorobutadieneDAILY MX <= .0159 mg/L all year
002HexachloroethaneDAILY AV <= .0796 mg/L all year
002HexachloroethaneDAILY MX <= .168 mg/L all year
002Methyl chloride [Chloromethane]DAILY AV <= .11 mg/L all year
002Methyl chloride [Chloromethane]DAILY MX <= .295 mg/L all year
002Methylene chlorideDAILY AV <= .036 mg/L all year
002Methylene chlorideDAILY MX <= .17 mg/L all year
002NitrobenzeneDAILY AV <= 2.237 mg/L all year
002NitrobenzeneDAILY MX <= 6.402 mg/L all year
002PhenanthreneDAILY AV <= .0121 mg/L all year
002PhenanthreneDAILY MX <= .0255 mg/L all year
002PyreneDAILY AV <= .02 mg/L all year
002PyreneDAILY MX <= .048 mg/L all year
002TetrachloroethyleneDAILY AV <= .052 mg/L all year
002TetrachloroethyleneDAILY MX <= .164 mg/L all year
0021,1-DichloroethaneDAILY AV <= .022 mg/L all year
0021,1-DichloroethaneDAILY MX <= .059 mg/L all year
0021,1-DichloroethyleneDAILY AV <= .022 mg/L all year
0021,1-DichloroethyleneDAILY MX <= .06 mg/L all year
0021,1,1-TrichloroethaneDAILY AV <= .022 mg/L all year
0021,1,1-TrichloroethaneDAILY MX <= .059 mg/L all year
0021,1,2-TrichloroethaneDAILY AV <= .032 mg/L all year
0021,1,2-TrichloroethaneDAILY MX <= .127 mg/L all year
002Benzo[a]anthraceneDAILY AV <= .000854 mg/L all year
002Benzo[a]anthraceneDAILY MX <= .00181 mg/L all year
0021,2-DichlorobenzeneDAILY AV <= .196 mg/L all year
0021,2-DichlorobenzeneDAILY MX <= .794 mg/L all year
0021,2-DichloropropaneDAILY AV <= .196 mg/L all year
0021,2-DichloropropaneDAILY MX <= .794 mg/L all year
002trans-1,2-DichloroethyleneDAILY AV <= .025 mg/L all year
002trans-1,2-DichloroethyleneDAILY MX <= .066 mg/L all year
0021,2,4-TrichlorobenzeneDAILY AV <= .196 mg/L all year
0021,2,4-TrichlorobenzeneDAILY MX <= .794 mg/L all year
0021,3-DichlorobenzeneDAILY AV <= .142 mg/L all year
0021,3-DichlorobenzeneDAILY MX <= .38 mg/L all year
0021,4-DichlorobenzeneDAILY AV <= .142 mg/L all year
0021,4-DichlorobenzeneDAILY MX <= .38 mg/L all year
0022-NitrophenolDAILY AV <= .065 mg/L all year
0022-NitrophenolDAILY MX <= .231 mg/L all year
0022,4-DimethylphenolDAILY AV <= .019 mg/L all year
0022,4-DimethylphenolDAILY MX <= .047 mg/L all year
0022,4-DinitrophenolDAILY AV <= 1.207 mg/L all year
0022,4-DinitrophenolDAILY MX <= 4.291 mg/L all year
0024-NitrophenolDAILY AV <= .162 mg/L all year
0024-NitrophenolDAILY MX <= .576 mg/L all year
0024,6-Dinitro-o-cresolDAILY AV <= .078 mg/L all year
0024,6-Dinitro-o-cresolDAILY MX <= .277 mg/L all year
002PhenolDAILY AV <= .019 mg/L all year
002PhenolDAILY MX <= .047 mg/L all year
002NaphthaleneDAILY AV <= .019 mg/L all year
002NaphthaleneDAILY MX <= .047 mg/L all year
002Di[2-ethylhexyl] phthalate [DEHP]DAILY AV <= .000085 mg/L all year
002Di[2-ethylhexyl] phthalate [DEHP]DAILY MX <= .000181 mg/L all year
002Di-n-butyl phthalateDAILY AV <= .02 mg/L all year
002Di-n-butyl phthalateDAILY MX <= .043 mg/L all year
002Vinyl chlorideDAILY AV <= .097 mg/L all year
002Vinyl chlorideDAILY MX <= .172 mg/L all year
002TrichloroethyleneDAILY AV <= .026 mg/L all year
002TrichloroethyleneDAILY MX <= .069 mg/L all year
002HexachlorobenzeneDAILY AV <= .000023 mg/L all year
002HexachlorobenzeneDAILY MX <= .000049 mg/L all year
002Flow, in conduit or thru treatment plantDAILY AV <= .62 MGD all year
002Flow, in conduit or thru treatment plantDAILY MX <= 1.2 MGD all year
002Chlorine, free availableDAILY AV <= .2 mg/L all year
002Chlorine, free availableDAILY MX <= .5 mg/L all year
0021,3-DichloropropyleneDAILY AV <= .196 mg/L all year
0021,3-DichloropropyleneDAILY MX <= .794 mg/L all year
0023,4-BenzofluorantheneDAILY AV <= .02 mg/L all year
0023,4-BenzofluorantheneDAILY MX <= .048 mg/L all year
002pH range excursions, > 60 minutesMO TOTAL <= 0 occur/mo all year
002pH range excursions, monthly total accumMO TOTAL <= 446 min all year
002ChloroethaneDAILY AV <= .11 mg/L all year
002ChloroethaneDAILY MX <= .295 mg/L all year
003Oxygen demand, chem. [high level] [COD]DAILY MX <= 150 mg/L all year
003pHMINIMUM >= 6 SU all year
003pHMAXIMUM <= 9 SU all year
003Oil & GreaseDAILY MX <= 15 mg/L all year
003Zinc, total [as Zn]DAILY AV <= .188 mg/L all year
003Zinc, total [as Zn]DAILY MX <= .399 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
003Chlorine, free availableDAILY AV <= .2 mg/L all year
003Chlorine, free availableDAILY MX <= .5 mg/L all year
101BOD, 5-day, 20 deg. CDAILY AV <= 86.5 lb/d all year
101BOD, 5-day, 20 deg. CDAILY MX <= 231 lb/d all year
101pHMINIMUM >= 5 SU all year
101pHMAXIMUM <= 11 SU all year
101Solids, total suspendedDAILY AV <= 144 lb/d all year
101Solids, total suspendedDAILY MX <= 469 lb/d all year
101Carbon tetrachlorideDAILY AV <= .512 lb/d all year
101Carbon tetrachlorideDAILY MX <= 1.37 lb/d all year
1011,2-DichloroethaneDAILY AV <= .649 lb/d all year
1011,2-DichloroethaneDAILY MX <= 2.069 lb/d all year
101ChloroformDAILY AV <= .4 lb/d all year
101ChloroformDAILY MX <= 1.172 lb/d all year
101TolueneDAILY AV <= .101 lb/d all year
101TolueneDAILY MX <= .267 lb/d all year
101BenzeneDAILY AV <= .205 lb/d all year
101BenzeneDAILY MX <= .483 lb/d all year
101AcenaphthyleneDAILY AV <= .068 lb/d all year
101AcenaphthyleneDAILY MX <= .169 lb/d all year
101AcenaphtheneDAILY AV <= .068 lb/d all year
101AcenaphtheneDAILY MX <= .169 lb/d all year
101AcrylonitrileDAILY AV <= .339 lb/d all year
101AcrylonitrileDAILY MX <= .836 lb/d all year
101AnthraceneDAILY AV <= .068 lb/d all year
101AnthraceneDAILY MX <= .169 lb/d all year
101Benzo[k]fluorantheneDAILY AV <= .068 lb/d all year
101Benzo[k]fluorantheneDAILY MX <= .169 lb/d all year
101Benzo[a]pyreneDAILY AV <= .072 lb/d all year
101Benzo[a]pyreneDAILY MX <= .173 lb/d all year
101ChlorobenzeneDAILY AV <= .512 lb/d all year
101ChlorobenzeneDAILY MX <= 1.37 lb/d all year
101ChryseneDAILY AV <= .068 lb/d all year
101ChryseneDAILY MX <= .169 lb/d all year
101Diethyl phthalateDAILY AV <= .166 lb/d all year
101Diethyl phthalateDAILY MX <= .407 lb/d all year
101Dimethyl phthalateDAILY AV <= .068 lb/d all year
101Dimethyl phthalateDAILY MX <= .169 lb/d all year
101EthylbenzeneDAILY AV <= .512 lb/d all year
101EthylbenzeneDAILY MX <= 1.37 lb/d all year
101FluorantheneDAILY AV <= .079 lb/d all year
101FluorantheneDAILY MX <= .195 lb/d all year
101FluoreneDAILY AV <= .068 lb/d all year
101FluoreneDAILY MX <= .169 lb/d all year
101HexachlorobutadieneDAILY AV <= .512 lb/d all year
101HexachlorobutadieneDAILY MX <= 1.37 lb/d all year
101HexachloroethaneDAILY AV <= .707 lb/d all year
101HexachloroethaneDAILY MX <= 2.862 lb/d all year
101Methyl chloride [Chloromethane]DAILY AV <= .397 lb/d all year
101Methyl chloride [Chloromethane]DAILY MX <= 1.063 lb/d all year
101Methylene chlorideDAILY AV <= .13 lb/d all year
101Methylene chlorideDAILY MX <= .613 lb/d all year
101NitrobenzeneDAILY AV <= 8.064 lb/d all year
101NitrobenzeneDAILY MX <= 23.079 lb/d all year
101PhenanthreneDAILY AV <= .068 lb/d all year
101PhenanthreneDAILY MX <= .169 lb/d all year
101PyreneDAILY AV <= .072 lb/d all year
101PyreneDAILY MX <= .173 lb/d all year
101TetrachloroethyleneDAILY AV <= .187 lb/d all year
101TetrachloroethyleneDAILY MX <= .591 lb/d all year
1011,1-DichloroethaneDAILY AV <= .079 lb/d all year
1011,1-DichloroethaneDAILY MX <= .213 lb/d all year
1011,1-DichloroethyleneDAILY AV <= .079 lb/d all year
1011,1-DichloroethyleneDAILY MX <= .216 lb/d all year
1011,1,1-TrichloroethaneDAILY AV <= .079 lb/d all year
1011,1,1-TrichloroethaneDAILY MX <= .213 lb/d all year
1011,1,2-TrichloroethaneDAILY AV <= .115 lb/d all year
1011,1,2-TrichloroethaneDAILY MX <= .458 lb/d all year
101Benzo[a]anthraceneDAILY AV <= .068 lb/d all year
101Benzo[a]anthraceneDAILY MX <= .169 lb/d all year
1011,2-DichlorobenzeneDAILY AV <= .707 lb/d all year
1011,2-DichlorobenzeneDAILY MX <= 2.862 lb/d all year
1011,2-DichloropropaneDAILY AV <= .707 lb/d all year
1011,2-DichloropropaneDAILY MX <= 2.862 lb/d all year
101trans-1,2-DichloroethyleneDAILY AV <= .09 lb/d all year
101trans-1,2-DichloroethyleneDAILY MX <= .238 lb/d all year
1011,2,4-TrichlorobenzeneDAILY AV <= .707 lb/d all year
1011,2,4-TrichlorobenzeneDAILY MX <= 2.862 lb/d all year
1011,3-DichlorobenzeneDAILY AV <= .512 lb/d all year
1011,3-DichlorobenzeneDAILY MX <= 1.37 lb/d all year
1011,4-DichlorobenzeneDAILY AV <= .512 lb/d all year
1011,4-DichlorobenzeneDAILY MX <= 1.37 lb/d all year
1012-NitrophenolDAILY AV <= .234 lb/d all year
1012-NitrophenolDAILY MX <= .833 lb/d all year
1012,4-DimethylphenolDAILY AV <= .068 lb/d all year
1012,4-DimethylphenolDAILY MX <= .169 lb/d all year
1012,4-DinitrophenolDAILY AV <= 4.351 lb/d all year
1012,4-DinitrophenolDAILY MX <= 15.469 lb/d all year
1014-NitrophenolDAILY AV <= .584 lb/d all year
1014-NitrophenolDAILY MX <= 2.077 lb/d all year
1014,6-Dinitro-o-cresolDAILY AV <= .281 lb/d all year
1014,6-Dinitro-o-cresolDAILY MX <= .999 lb/d all year
101PhenolDAILY AV <= .068 lb/d all year
101PhenolDAILY MX <= .169 lb/d all year
101NaphthaleneDAILY AV <= .068 lb/d all year
101NaphthaleneDAILY MX <= .169 lb/d all year
101Di[2-ethylhexyl] phthalate [DEHP]DAILY AV <= .342 lb/d all year
101Di[2-ethylhexyl] phthalate [DEHP]DAILY MX <= .93 lb/d all year
101Di-n-butyl phthalateDAILY AV <= .072 lb/d all year
101Di-n-butyl phthalateDAILY MX <= .155 lb/d all year
101Vinyl chlorideDAILY AV <= .35 lb/d all year
101Vinyl chlorideDAILY MX <= .62 lb/d all year
101TrichloroethyleneDAILY AV <= .094 lb/d all year
101TrichloroethyleneDAILY MX <= .249 lb/d all year
101HexachlorobenzeneDAILY AV <= .707 lb/d all year
101HexachlorobenzeneDAILY MX <= 2.862 lb/d all year
101Flow, in conduit or thru treatment plantDAILY AV <= .54 MGD all year
101Flow, in conduit or thru treatment plantDAILY MX report only all year
1011,3-DichloropropyleneDAILY AV <= .707 lb/d all year
1011,3-DichloropropyleneDAILY MX <= 2.862 lb/d all year
1013,4-BenzofluorantheneDAILY AV <= .072 lb/d all year
1013,4-BenzofluorantheneDAILY MX <= .173 lb/d all year
101pH range excursions, > 60 minutesMO TOTAL <= 0 occur/mo all year
101pH range excursions, monthly total accumMO TOTAL <= 446 min all year
101ChloroethaneDAILY AV <= .397 lb/d all year
101ChloroethaneDAILY MX <= 1.063 lb/d all year
TX1Whole effluent toxicity - retest #17 DA MIN report only all year
TX1Whole effluent toxicity - retest #1MO AV MN report only all year
TX1Whole effluent toxicity - retest #27 DA MIN report only all year
TX1Whole effluent toxicity - retest #2MO AV MN report only all year
TX1Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia7 DA MIN report only all year
TX1Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubiaMO AV MN report only all year
TX1Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas7 DA MIN report only all year
TX1Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelasMO AV MN report only all year
TX1NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia7 DA MIN report only all year
TX1NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiaMO AV MN report only all year
TX1NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas7 DA MIN report only all year
TX1NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelasMO AV MN report only all year
TX1NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia7 DA MIN report only all year
TX1NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiaMO AV MN report only all year
TX1NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas7 DA MIN report only all year
TX1NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelasMO AV MN report only all year
TX1Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia7 DA MIN report only all year
TX1Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiaMO AV MN report only all year
TX1Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelas7 DA MIN report only all year
TX1Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelasMO AV MN report only all year
TX1LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia7 DA MIN report only all year
TX1LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubiaMO AV MN report only all year
TX1LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas7 DA MIN report only all year
TX1LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelasMO AV MN report only all year
TX1LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia7 DA MIN report only all year
TX1LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubiaMO AV MN report only all year
TX1LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas7 DA MIN report only all year
TX1LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic 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