CHEVRON PHILLIPS CHEMICAL COMPANY LP

NPDES permit TX0007552 · Major NON-POTW · effective, expires 2028-02-23 · 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.

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

3values over a limit
0required values missing, on 0 form(s)
0of 64 forms filed late

Last period with anything received: 2026-07-31. Most often over: Enterococci (2), Solids, total suspended (1).

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 (219)

OutfallParameterStatisticLimitMonths
001BOD, 5-day, 20 deg. CDAILY AV <= 591 lb/d all year
001BOD, 5-day, 20 deg. CDAILY MX <= 1358 lb/d all year
001Oxygen demand, chem. [high level] [COD]DAILY AV <= 2097 lb/d all year
001Oxygen demand, chem. [high level] [COD]DAILY MX <= 4194 lb/d all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedDAILY AV <= 1044 lb/d all year
001Solids, total suspendedDAILY MX <= 3094 lb/d all year
001Oil & GreaseDAILY AV <= 202 lb/d all year
001Oil & GreaseDAILY MX <= 402 lb/d all year
001Carbon tetrachlorideDAILY AV <= 1.28 lb/d all year
001Carbon tetrachlorideDAILY MX <= 3.42 lb/d all year
0011,2-DichloroethaneDAILY AV <= 1.62 lb/d all year
0011,2-DichloroethaneDAILY MX <= 5.17 lb/d all year
001ChloroformDAILY AV <= 1 lb/d all year
001ChloroformDAILY MX <= 2.93 lb/d all year
001TolueneDAILY AV <= .25 lb/d all year
001TolueneDAILY MX <= .67 lb/d all year
001BenzeneDAILY AV <= .51 lb/d all year
001BenzeneDAILY MX <= 1.21 lb/d all year
001AcenaphthyleneDAILY AV <= .17 lb/d all year
001AcenaphthyleneDAILY MX <= .42 lb/d all year
001AcenaphtheneDAILY AV <= .17 lb/d all year
001AcenaphtheneDAILY MX <= .42 lb/d all year
001AcrylonitrileDAILY AV <= .85 lb/d all year
001AcrylonitrileDAILY MX <= 2.09 lb/d all year
001AnthraceneDAILY AV <= .17 lb/d all year
001AnthraceneDAILY MX <= .42 lb/d all year
001Benzo[k]fluorantheneDAILY AV <= .17 lb/d all year
001Benzo[k]fluorantheneDAILY MX <= .42 lb/d all year
001Benzo[a]pyreneDAILY AV <= .003 lb/d all year
001Benzo[a]pyreneDAILY MX <= .006 lb/d all year
001ChlorobenzeneDAILY AV <= 1.28 lb/d all year
001ChlorobenzeneDAILY MX <= 3.42 lb/d all year
001ChryseneDAILY AV <= .17 lb/d all year
001ChryseneDAILY MX <= .42 lb/d all year
001Diethyl phthalateDAILY AV <= .41 lb/d all year
001Diethyl phthalateDAILY MX <= 1.02 lb/d all year
001Dimethyl phthalateDAILY AV <= .17 lb/d all year
001Dimethyl phthalateDAILY MX <= .42 lb/d all year
001EthylbenzeneDAILY AV <= 1.28 lb/d all year
001EthylbenzeneDAILY MX <= 3.42 lb/d all year
001FluorantheneDAILY AV <= .2 lb/d all year
001FluorantheneDAILY MX <= .49 lb/d all year
001FluoreneDAILY AV <= .17 lb/d all year
001FluoreneDAILY MX <= .42 lb/d all year
001HexachlorobutadieneDAILY AV <= .269 lb/d all year
001HexachlorobutadieneDAILY MX <= .571 lb/d all year
001HexachloroethaneDAILY AV <= 1.77 lb/d all year
001HexachloroethaneDAILY MX <= 7.16 lb/d all year
001Methyl chloride [Chloromethane]DAILY AV <= .99 lb/d all year
001Methyl chloride [Chloromethane]DAILY MX <= 2.66 lb/d all year
001Methylene chlorideDAILY AV <= .32 lb/d all year
001Methylene chlorideDAILY MX <= 1.53 lb/d all year
001NitrobenzeneDAILY AV <= 20.2 lb/d all year
001NitrobenzeneDAILY MX <= 57.7 lb/d all year
001PhenanthreneDAILY AV <= .17 lb/d all year
001PhenanthreneDAILY MX <= .42 lb/d all year
001PyreneDAILY AV <= .18 lb/d all year
001PyreneDAILY MX <= .43 lb/d all year
001TetrachloroethyleneDAILY AV <= .47 lb/d all year
001TetrachloroethyleneDAILY MX <= 1.48 lb/d all year
0011,1-DichloroethaneDAILY AV <= .2 lb/d all year
0011,1-DichloroethaneDAILY MX <= .53 lb/d all year
0011,1-DichloroethyleneDAILY AV <= .2 lb/d all year
0011,1-DichloroethyleneDAILY MX <= .54 lb/d all year
0011,1,1-TrichloroethaneDAILY AV <= .2 lb/d all year
0011,1,1-TrichloroethaneDAILY MX <= .53 lb/d all year
0011,1,2-TrichloroethaneDAILY AV <= .29 lb/d all year
0011,1,2-TrichloroethaneDAILY MX <= 1.14 lb/d all year
001Benzo[a]anthraceneDAILY AV <= .031 lb/d all year
001Benzo[a]anthraceneDAILY MX <= .065 lb/d all year
0011,2-DichlorobenzeneDAILY AV <= 1.77 lb/d all year
0011,2-DichlorobenzeneDAILY MX <= 7.16 lb/d all year
0011,2-DichloropropaneDAILY AV <= 1.77 lb/d all year
0011,2-DichloropropaneDAILY MX <= 7.16 lb/d all year
001trans-1,2-DichloroethyleneDAILY AV <= .23 lb/d all year
001trans-1,2-DichloroethyleneDAILY MX <= .59 lb/d all year
0011,2,4-TrichlorobenzeneDAILY AV <= 1.77 lb/d all year
0011,2,4-TrichlorobenzeneDAILY MX <= 7.16 lb/d all year
0011,3-DichlorobenzeneDAILY AV <= 1.28 lb/d all year
0011,3-DichlorobenzeneDAILY MX <= 3.42 lb/d all year
0011,4-DichlorobenzeneDAILY AV <= 1.28 lb/d all year
0011,4-DichlorobenzeneDAILY MX <= 3.42 lb/d all year
0012-NitrophenolDAILY AV <= .59 lb/d all year
0012-NitrophenolDAILY MX <= 2.08 lb/d all year
0012,4-DimethylphenolDAILY AV <= .17 lb/d all year
0012,4-DimethylphenolDAILY MX <= .42 lb/d all year
0012,4-DinitrophenolDAILY AV <= 10.9 lb/d all year
0012,4-DinitrophenolDAILY MX <= 38.7 lb/d all year
0014-NitrophenolDAILY AV <= 1.46 lb/d all year
0014-NitrophenolDAILY MX <= 5.19 lb/d all year
0014,6-Dinitro-o-cresolDAILY AV <= .7 lb/d all year
0014,6-Dinitro-o-cresolDAILY MX <= 2.5 lb/d all year
001PhenolDAILY AV <= .17 lb/d all year
001PhenolDAILY MX <= .42 lb/d all year
001NaphthaleneDAILY AV <= .17 lb/d all year
001NaphthaleneDAILY MX <= .42 lb/d all year
001Di[2-ethylhexyl] phthalate [DEHP]DAILY AV <= .86 lb/d all year
001Di[2-ethylhexyl] phthalate [DEHP]DAILY MX <= 2.33 lb/d all year
001Di-n-butyl phthalateDAILY AV <= .18 lb/d all year
001Di-n-butyl phthalateDAILY MX <= .39 lb/d all year
001Vinyl chlorideDAILY AV <= .87 lb/d all year
001Vinyl chlorideDAILY MX <= 1.55 lb/d all year
001TrichloroethyleneDAILY AV <= .23 lb/d all year
001TrichloroethyleneDAILY MX <= .62 lb/d all year
001HexachlorobenzeneDAILY AV <= .001 lb/d all year
001HexachlorobenzeneDAILY MX <= .002 lb/d all year
0011,3-DichloropropyleneDAILY AV <= 1.77 lb/d all year
0011,3-DichloropropyleneDAILY MX <= 7.16 lb/d all year
001Flow [dry weather]DAILY AV <= 4.3 MGD all year
001Flow [dry weather]DAILY MX <= 7.5 MGD all year
0013,4-BenzofluorantheneDAILY AV <= .18 lb/d all year
0013,4-BenzofluorantheneDAILY MX <= .43 lb/d all year
001ChloroethaneDAILY AV <= .99 lb/d all year
001ChloroethaneDAILY MX <= 2.66 lb/d all year
002BOD, 5-day, 20 deg. CDAILY MX <= 30 mg/L all year
002pHMINIMUM >= 6 SU all year
002pHMAXIMUM <= 9 SU all year
002Solids, total suspendedDAILY MX <= 100 mg/L all year
002Oil & GreaseDAILY MX <= 15 mg/L all year
002Carbon, tot organic [TOC]DAILY MX <= 75 mg/L all year
002Chromium, total [as Cr]DAILY MX <= 1 mg/L all year
002Carbon tetrachlorideDAILY MX <= .38 mg/L all year
0021,2-DichloroethaneDAILY MX <= .574 mg/L all year
002ChloroformDAILY MX <= .325 mg/L all year
002TolueneDAILY MX <= .074 mg/L all year
002BenzeneDAILY MX <= .134 mg/L all year
002AcenaphthyleneDAILY MX <= .047 mg/L all year
002AcenaphtheneDAILY MX <= .047 mg/L all year
002AcrylonitrileDAILY MX <= .232 mg/L all year
002AnthraceneDAILY MX <= .047 mg/L all year
002Benzo[k]fluorantheneDAILY MX <= .047 mg/L all year
002Benzo[a]pyreneDAILY MX <= .048 mg/L all year
002ChlorobenzeneDAILY MX <= .38 mg/L all year
002ChryseneDAILY MX <= .047 mg/L all year
002Diethyl phthalateDAILY MX <= .113 mg/L all year
002Dimethyl phthalateDAILY MX <= .047 mg/L all year
002EthylbenzeneDAILY MX <= .38 mg/L all year
002FluorantheneDAILY MX <= .054 mg/L all year
002FluoreneDAILY MX <= .047 mg/L all year
002HexachlorobutadieneDAILY MX <= .38 mg/L all year
002HexachloroethaneDAILY MX <= .794 mg/L all year
002Methyl chloride [Chloromethane]DAILY MX <= .295 mg/L all year
002Methylene chlorideDAILY MX <= .17 mg/L all year
002NitrobenzeneDAILY MX <= 6.4 mg/L all year
002PhenanthreneDAILY MX <= .047 mg/L all year
002PyreneDAILY MX <= .048 mg/L all year
002TetrachloroethyleneDAILY MX <= .164 mg/L all year
0021,1-DichloroethaneDAILY MX <= .059 mg/L all year
0021,1-DichloroethyleneDAILY MX <= .06 mg/L all year
0021,1,1-TrichloroethaneDAILY MX <= .059 mg/L all year
0021,1,2-TrichloroethaneDAILY MX <= .127 mg/L all year
002Benzo[a]anthraceneDAILY MX <= .047 mg/L all year
0021,2-DichlorobenzeneDAILY MX <= .794 mg/L all year
0021,2-DichloropropaneDAILY MX <= .794 mg/L all year
002trans-1,2-DichloroethyleneDAILY MX <= .066 mg/L all year
0021,2,4-TrichlorobenzeneDAILY MX <= .794 mg/L all year
0021,3-DichlorobenzeneDAILY MX <= .38 mg/L all year
0021,4-DichlorobenzeneDAILY MX <= .38 mg/L all year
0022-NitrophenolDAILY MX <= .231 mg/L all year
0022,4-DimethylphenolDAILY MX <= .047 mg/L all year
0022,4-DinitrophenolDAILY MX <= 4.29 mg/L all year
0024-NitrophenolDAILY MX <= .576 mg/L all year
0024,6-Dinitro-o-cresolDAILY MX <= .277 mg/L all year
002PhenolDAILY MX <= .047 mg/L all year
002NaphthaleneDAILY MX <= .047 mg/L all year
002Di[2-ethylhexyl] phthalate [DEHP]DAILY MX <= .258 mg/L all year
002Di-n-butyl phthalateDAILY MX <= .043 mg/L all year
002Vinyl chlorideDAILY MX <= .172 mg/L all year
002TrichloroethyleneDAILY MX <= .069 mg/L all year
002HexachlorobenzeneDAILY MX <= .794 mg/L all year
002Flow, in conduit or thru treatment plantDAILY AV report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
0021,3-DichloropropyleneDAILY MX <= .794 mg/L all year
0023,4-BenzofluorantheneDAILY MX <= .048 mg/L all year
002ChloroethaneDAILY MX <= .295 mg/L all year
003pHMINIMUM >= 6 SU all year
003pHMAXIMUM <= 9 SU all year
003Oil & GreaseDAILY MX <= 15 mg/L all year
003Carbon, tot organic [TOC]DAILY MX <= 75 mg/L all year
003Chromium, total [as Cr]DAILY MX <= 1 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
004pHMINIMUM >= 6 SU all year
004pHMAXIMUM <= 9 SU all year
004Oil & GreaseDAILY MX <= 15 mg/L all year
004Carbon, tot organic [TOC]DAILY MX <= 75 mg/L all year
004Chromium, total [as Cr]DAILY MX <= 1 mg/L all year
004Flow, in conduit or thru treatment plantDAILY AV report only all year
004Flow, in conduit or thru treatment plantDAILY MX report only all year
101Flow, in conduit or thru treatment plantDAILY AV report only all year
101Flow, in conduit or thru treatment plantDAILY MX report only all year
101EnterococciDAILY AV <= 168 CFU/100mL all year
101EnterococciDAILY MX <= 500 CFU/100mL 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
TX1IC25 Low Flow Pass/Fail Lethal Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)7 DA MIN report only all year
TX1IC25 Low Flow Pass/Fail Lethal Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)MO AV MN report only all year
TX1IC25 Low Flow Pass/Fail Lethal Static Renewal 7 Day Chronic Menidia beryllina7 DA MIN report only all year
TX1IC25 Low Flow Pass/Fail Lethal Static Renewal 7 Day Chronic Menidia beryllinaMO AV MN report only all year
TX1IC25 Low Flow Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (M. bahia)7 DA MIN report only all year
TX1IC25 Low Flow Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (M. bahia)MO AV MN report only all year
TX1IC25 Low Flow Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllina7 DA MIN report only all year
TX1IC25 Low Flow Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllinaMO AV MN report only all year
TX1IC25 Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7 DA MIN report only all year
TX1IC25 Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MO AV MN report only all year
TX1IC25 Lethal Static Renewal 7 Day Chronic Menidia beryllina7 DA MIN report only all year
TX1IC25 Lethal Static Renewal 7 Day Chronic Menidia beryllinaMO AV MN report only all year
TX1IC25 Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7 DA MIN report only all year
TX1IC25 Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MO AV MN report only all year
TX1IC25 Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllina7 DA MIN report only all year
TX1IC25 Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllinaMO 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 Americamysis bahia (formerly Mysidopsis bahia)SINGSAMP report only all year
TXALC50 Pass/Fail Static 24Hr Acute Menidia menidiaSINGSAMP 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