CHEVRON PHILLIPS CHEMICAL COMPANY LP

NPDES permit TX0003948 · Major NON-POTW · effective, expires 2030-01-24 · 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

1values over a limit
5required values missing, on 3 form(s)
2of 72 forms filed late

Last period with anything received: 2026-07-31. Most often over: Oil & Grease (1).

Reporting

Reports are due about 20 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (312)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]MO MIN >= 4 mg/L all year
001BOD, 5-day, 20 deg. CDAILY AV <= 470 lb/d all year
001BOD, 5-day, 20 deg. CDAILY MX <= 940 lb/d all year
001pHMINIMUM >= 5 SU all year
001pHMAXIMUM <= 11 SU all year
001Solids, total suspendedDAILY AV <= 575 lb/d all year
001Solids, total suspendedDAILY MX <= 1150 lb/d all year
001Nitrogen, ammonia total [as N]DAILY AV <= 250 lb/d all year
001Nitrogen, ammonia total [as N]DAILY MX <= 500 lb/d all year
001Carbon, tot organic [TOC]DAILY AV <= 875 lb/d all year
001Carbon, tot organic [TOC]DAILY MX <= 1750 lb/d all year
001Copper, total [as Cu]DAILY AV <= .0069 mg/L all year
001Copper, total [as Cu]DAILY MX <= .015 mg/L all year
001Nickel, total [as Ni]DAILY AV <= .022 mg/L all year
001Nickel, total [as Ni]DAILY MX <= .046 mg/L all year
001Nickel, total [as Ni]DAILY AV <= .59 lb/d all year
001Nickel, total [as Ni]DAILY MX <= 1.23 lb/d all year
001Carbon tetrachlorideDAILY AV <= .21 lb/d all year
001Carbon tetrachlorideDAILY MX <= .45 lb/d all year
0011,2-DichloroethaneDAILY AV <= .81 lb/d all year
0011,2-DichloroethaneDAILY MX <= 2.5 lb/d all year
001ChloroformDAILY AV <= .376 lb/d all year
001ChloroformDAILY MX <= .824 lb/d all year
001TolueneDAILY AV <= .31 lb/d all year
001TolueneDAILY MX <= .95 lb/d all year
001BenzeneDAILY AV <= .44 lb/d all year
001BenzeneDAILY MX <= 1.61 lb/d all year
001AcenaphthyleneDAILY AV <= .26 lb/d all year
001AcenaphthyleneDAILY MX <= .7 lb/d all year
001AcenaphtheneDAILY AV <= .26 lb/d all year
001AcenaphtheneDAILY MX <= .7 lb/d all year
001AcrylonitrileDAILY AV <= .012 mg/L all year
001AcrylonitrileDAILY MX <= .026 mg/L all year
001AcrylonitrileDAILY AV <= .242 lb/d all year
001AcrylonitrileDAILY MX <= .511 lb/d all year
001AnthraceneDAILY AV <= .26 lb/d all year
001AnthraceneDAILY MX <= .7 lb/d all year
001Benzo[k]fluorantheneDAILY AV <= .26 lb/d all year
001Benzo[k]fluorantheneDAILY MX <= .7 lb/d all year
001Benzo[a]pyreneDAILY AV <= .00012 lb/d all year
001Benzo[a]pyreneDAILY MX <= .00025 lb/d all year
001ChlorobenzeneDAILY AV <= .18 lb/d all year
001ChlorobenzeneDAILY MX <= .33 lb/d all year
001ChryseneDAILY AV <= .002 lb/d all year
001ChryseneDAILY MX <= .004 lb/d all year
001Diethyl phthalateDAILY AV <= .96 lb/d all year
001Diethyl phthalateDAILY MX <= 2.41 lb/d all year
001Dimethyl phthalateDAILY AV <= .23 lb/d all year
001Dimethyl phthalateDAILY MX <= .56 lb/d all year
001EthylbenzeneDAILY AV <= .38 lb/d all year
001EthylbenzeneDAILY MX <= 1.28 lb/d all year
001FluorantheneDAILY AV <= .3 lb/d all year
001FluorantheneDAILY MX <= .81 lb/d all year
001FluoreneDAILY AV <= .26 lb/d all year
001FluoreneDAILY MX <= .7 lb/d all year
001HexachlorobutadieneDAILY AV <= .011 lb/d all year
001HexachlorobutadieneDAILY MX <= .021 lb/d all year
001HexachloroethaneDAILY AV <= .11 lb/d all year
001HexachloroethaneDAILY MX <= .23 lb/d all year
001Methyl chloride [Chloromethane]DAILY AV <= 1.02 lb/d all year
001Methyl chloride [Chloromethane]DAILY MX <= 2.25 lb/d all year
001Methylene chlorideDAILY AV <= .47 lb/d all year
001Methylene chlorideDAILY MX <= 1.05 lb/d all year
001NitrobenzeneDAILY AV <= .32 lb/d all year
001NitrobenzeneDAILY MX <= .81 lb/d all year
001PhenanthreneDAILY AV <= .0036 mg/L all year
001PhenanthreneDAILY MX <= .0077 mg/L all year
001PhenanthreneDAILY AV <= .12 lb/d all year
001PhenanthreneDAILY MX <= .26 lb/d all year
001PyreneDAILY AV <= .3 lb/d all year
001PyreneDAILY MX <= .79 lb/d all year
001TetrachloroethyleneDAILY AV <= .26 lb/d all year
001TetrachloroethyleneDAILY MX <= .66 lb/d all year
0011,1-DichloroethaneDAILY AV <= .26 lb/d all year
0011,1-DichloroethaneDAILY MX <= .7 lb/d all year
0011,1-DichloroethyleneDAILY AV <= .19 lb/d all year
0011,1-DichloroethyleneDAILY MX <= .3 lb/d all year
0011,1,1-TrichloroethaneDAILY AV <= .25 lb/d all year
0011,1,1-TrichloroethaneDAILY MX <= .64 lb/d all year
0011,1,2-TrichloroethaneDAILY AV <= .25 lb/d all year
0011,1,2-TrichloroethaneDAILY MX <= .64 lb/d all year
001Benzo[a]anthraceneDAILY AV <= .0012 lb/d all year
001Benzo[a]anthraceneDAILY MX <= .0025 lb/d all year
0011,2-DichlorobenzeneDAILY AV <= .91 lb/d all year
0011,2-DichlorobenzeneDAILY MX <= 1.93 lb/d all year
0011,2-DichloropropaneDAILY AV <= 1.81 lb/d all year
0011,2-DichloropropaneDAILY MX <= 2.73 lb/d all year
001trans-1,2-DichloroethyleneDAILY AV <= .25 lb/d all year
001trans-1,2-DichloroethyleneDAILY MX <= .64 lb/d all year
0011,2,4-TrichlorobenzeneDAILY AV <= .81 lb/d all year
0011,2,4-TrichlorobenzeneDAILY MX <= 1.66 lb/d all year
0011,3-DichlorobenzeneDAILY AV <= .37 lb/d all year
0011,3-DichlorobenzeneDAILY MX <= .52 lb/d all year
0011,4-DichlorobenzeneDAILY AV <= .18 lb/d all year
0011,4-DichlorobenzeneDAILY MX <= .33 lb/d all year
0012-ChlorophenolDAILY AV <= .37 lb/d all year
0012-ChlorophenolDAILY MX <= 1.16 lb/d all year
0012-NitrophenolDAILY AV <= .49 lb/d all year
0012-NitrophenolDAILY MX <= .82 lb/d all year
0012,4-DichlorophenolDAILY AV <= .46 lb/d all year
0012,4-DichlorophenolDAILY MX <= 1.33 lb/d all year
0012,4-DimethylphenolDAILY AV <= .21 lb/d all year
0012,4-DimethylphenolDAILY MX <= .43 lb/d all year
0012,4-DinitrotolueneDAILY AV <= 1.34 lb/d all year
0012,4-DinitrotolueneDAILY MX <= 3.38 lb/d all year
0012,4-DinitrophenolDAILY AV <= .84 lb/d all year
0012,4-DinitrophenolDAILY MX <= 1.46 lb/d all year
0012,6-DinitrotolueneDAILY AV <= 3.02 lb/d all year
0012,6-DinitrotolueneDAILY MX <= 7.6 lb/d all year
0014-NitrophenolDAILY AV <= .85 lb/d all year
0014-NitrophenolDAILY MX <= 1.47 lb/d all year
0014,6-Dinitro-o-cresolDAILY AV <= .92 lb/d all year
0014,6-Dinitro-o-cresolDAILY MX <= 3.28 lb/d all year
001PhenolDAILY AV <= .18 lb/d all year
001PhenolDAILY MX <= .31 lb/d all year
001NaphthaleneDAILY AV <= .26 lb/d all year
001NaphthaleneDAILY MX <= .7 lb/d all year
001Di[2-ethylhexyl] phthalate [DEHP]DAILY AV <= .35 lb/d all year
001Di[2-ethylhexyl] phthalate [DEHP]DAILY MX <= .76 lb/d all year
001Di-n-butyl phthalateDAILY AV <= .32 lb/d all year
001Di-n-butyl phthalateDAILY MX <= .68 lb/d all year
001Vinyl chlorideDAILY AV <= .77 lb/d all year
001Vinyl chlorideDAILY MX <= 1.65 lb/d all year
001TrichloroethyleneDAILY AV <= .25 lb/d all year
001TrichloroethyleneDAILY MX <= .64 lb/d all year
001HexachlorobenzeneDAILY AV <= .000002 mg/L all year
001HexachlorobenzeneDAILY MX <= .000004 mg/L all year
001HexachlorobenzeneDAILY AV <= .000039 lb/d all year
001HexachlorobenzeneDAILY MX <= .000077 lb/d all year
001PhenolsDAILY AV <= 2.5 lb/d all year
001PhenolsDAILY MX <= 5 lb/d all year
001Flow, in conduit or thru treatment plantDAILY AV <= 4 MGD all year
001Flow, in conduit or thru treatment plantDAILY MX <= 6 MGD all year
0011,3-DichloropropyleneDAILY AV <= .34 lb/d all year
0011,3-DichloropropyleneDAILY MX <= .52 lb/d all year
001Cyanide, free availableDAILY MX report only all year
0013,4-BenzofluorantheneDAILY AV <= .27 lb/d all year
0013,4-BenzofluorantheneDAILY MX <= .72 lb/d all year
001pH range excursions, > 60 minutesMO TOTAL <= 0 occur/mo all year
001pH range excursions, monthly total accumMO TOTAL <= 446 min all year
001ChloroethaneDAILY AV <= 1.23 lb/d all year
001ChloroethaneDAILY MX <= 3.18 lb/d all year
002pHMINIMUM >= 6 SU all year
002pHMAXIMUM <= 9 SU all year
002Oil & GreaseDAILY MX <= 15 mg/L all year
002Carbon, tot organic [TOC]DAILY MX <= 70 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
003Oxygen, dissolved [DO]MO MIN >= 4 mg/L all year
003pHMINIMUM >= 6.1 SU all year
003pHMAXIMUM <= 9 SU all year
003Oil & GreaseDAILY MX <= 15 mg/L all year
003Carbon, tot organic [TOC]DAILY MX <= 70 mg/L all year
003Nickel, total [as Ni]DAILY AV <= .88 lb/d all year
003Nickel, total [as Ni]DAILY MX <= 1.86 lb/d all year
003Benzo[a]pyreneDAILY AV <= .00025 lb/d all year
003Benzo[a]pyreneDAILY MX <= .00054 lb/d all year
003HexachlorobutadieneDAILY AV <= .022 lb/d all year
003HexachlorobutadieneDAILY MX <= .048 lb/d all year
003Benzo[a]anthraceneDAILY AV <= .0025 lb/d all year
003Benzo[a]anthraceneDAILY MX <= .0054 lb/d all year
003HexachlorobenzeneDAILY AV <= .000068 lb/d all year
003HexachlorobenzeneDAILY MX <= .00015 lb/d 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
004Oxygen, dissolved [DO]MO MIN >= 4 mg/L 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 <= 70 mg/L all year
004Sulfate, total [as SO4]DAILY AV <= 484 mg/L all year
004Sulfate, total [as SO4]DAILY MX <= 1024 mg/L all year
004Nickel, total [as Ni]DAILY AV <= 2.56 lb/d all year
004Nickel, total [as Ni]DAILY MX <= 5.41 lb/d all year
004Benzo[a]pyreneDAILY AV <= .00043 lb/d all year
004Benzo[a]pyreneDAILY MX <= .00092 lb/d all year
004HexachlorobutadieneDAILY AV <= .038 lb/d all year
004HexachlorobutadieneDAILY MX <= .081 lb/d all year
004Benzo[a]anthraceneDAILY AV <= .0043 lb/d all year
004Benzo[a]anthraceneDAILY MX <= .0092 lb/d all year
004HexachlorobenzeneDAILY AV <= .00012 lb/d all year
004HexachlorobenzeneDAILY MX <= .00025 lb/d 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
004Solids, total dissolvedDAILY AV <= 1643 mg/L all year
004Solids, total dissolvedDAILY MX <= 3477 mg/L 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 <= 35 CFU/100mL all year
101EnterococciDAILY MX <= 104 CFU/100mL all year
104BOD, 5-day, 20 deg. CDAILY AV <= 200 lb/d all year
104BOD, 5-day, 20 deg. CDAILY MX <= 424 lb/d all year
104Solids, total suspendedDAILY AV <= 371 lb/d all year
104Solids, total suspendedDAILY MX <= 1019.2 lb/d all year
104Carbon tetrachlorideDAILY AV <= .09 lb/d all year
104Carbon tetrachlorideDAILY MX <= .18 lb/d all year
1041,2-DichloroethaneDAILY AV <= .33 lb/d all year
1041,2-DichloroethaneDAILY MX <= 1.03 lb/d all year
104ChloroformDAILY AV <= .6 lb/d all year
104ChloroformDAILY MX <= .85 lb/d all year
104TolueneDAILY AV <= .13 lb/d all year
104TolueneDAILY MX <= .39 lb/d all year
104BenzeneDAILY AV <= .18 lb/d all year
104BenzeneDAILY MX <= .66 lb/d all year
104AcenaphthyleneDAILY AV <= .11 lb/d all year
104AcenaphthyleneDAILY MX <= .29 lb/d all year
104AcenaphtheneDAILY AV <= .11 lb/d all year
104AcenaphtheneDAILY MX <= .29 lb/d all year
104AcrylonitrileDAILY AV <= .47 lb/d all year
104AcrylonitrileDAILY MX <= 1.18 lb/d all year
104AnthraceneDAILY AV <= .11 lb/d all year
104AnthraceneDAILY MX <= .29 lb/d all year
104Benzo[k]fluorantheneDAILY AV <= .11 lb/d all year
104Benzo[k]fluorantheneDAILY MX <= .29 lb/d all year
104ChlorobenzeneDAILY AV <= .07 lb/d all year
104ChlorobenzeneDAILY MX <= .14 lb/d all year
104ChryseneDAILY AV <= .11 lb/d all year
104ChryseneDAILY MX <= .29 lb/d all year
104Diethyl phthalateDAILY AV <= .39 lb/d all year
104Diethyl phthalateDAILY MX <= .99 lb/d all year
104Dimethyl phthalateDAILY AV <= .09 lb/d all year
104Dimethyl phthalateDAILY MX <= .23 lb/d all year
104EthylbenzeneDAILY AV <= .16 lb/d all year
104EthylbenzeneDAILY MX <= .53 lb/d all year
104FluorantheneDAILY AV <= .12 lb/d all year
104FluorantheneDAILY MX <= .33 lb/d all year
104FluoreneDAILY AV <= .11 lb/d all year
104FluoreneDAILY MX <= .29 lb/d all year
104HexachloroethaneDAILY AV <= .1 lb/d all year
104HexachloroethaneDAILY MX <= .26 lb/d all year
104Methyl chloride [Chloromethane]DAILY AV <= .42 lb/d all year
104Methyl chloride [Chloromethane]DAILY MX <= .92 lb/d all year
104Methylene chlorideDAILY AV <= .19 lb/d all year
104Methylene chlorideDAILY MX <= .43 lb/d all year
104NitrobenzeneDAILY AV <= .13 lb/d all year
104NitrobenzeneDAILY MX <= .33 lb/d all year
104PhenanthreneDAILY AV <= .11 lb/d all year
104PhenanthreneDAILY MX <= .29 lb/d all year
104PyreneDAILY AV <= .12 lb/d all year
104PyreneDAILY MX <= .33 lb/d all year
104TetrachloroethyleneDAILY AV <= .11 lb/d all year
104TetrachloroethyleneDAILY MX <= .27 lb/d all year
1041,1-DichloroethaneDAILY AV <= .11 lb/d all year
1041,1-DichloroethaneDAILY MX <= .29 lb/d all year
1041,1-DichloroethyleneDAILY AV <= .08 lb/d all year
1041,1-DichloroethyleneDAILY MX <= .12 lb/d all year
1041,1,1-TrichloroethaneDAILY AV <= .1 lb/d all year
1041,1,1-TrichloroethaneDAILY MX <= .26 lb/d all year
1041,1,2-TrichloroethaneDAILY AV <= .1 lb/d all year
1041,1,2-TrichloroethaneDAILY MX <= .26 lb/d all year
1041,2-DichlorobenzeneDAILY AV <= .37 lb/d all year
1041,2-DichlorobenzeneDAILY MX <= .79 lb/d all year
1041,2-DichloropropaneDAILY AV <= .74 lb/d all year
1041,2-DichloropropaneDAILY MX <= 1.12 lb/d all year
104trans-1,2-DichloroethyleneDAILY AV <= .1 lb/d all year
104trans-1,2-DichloroethyleneDAILY MX <= .26 lb/d all year
1041,2,4-TrichlorobenzeneDAILY AV <= .33 lb/d all year
1041,2,4-TrichlorobenzeneDAILY MX <= .68 lb/d all year
1041,3-DichlorobenzeneDAILY AV <= .15 lb/d all year
1041,3-DichlorobenzeneDAILY MX <= .21 lb/d all year
1041,4-DichlorobenzeneDAILY AV <= .07 lb/d all year
1041,4-DichlorobenzeneDAILY MX <= .14 lb/d all year
1042-ChlorophenolDAILY AV <= .15 lb/d all year
1042-ChlorophenolDAILY MX <= .48 lb/d all year
1042-NitrophenolDAILY AV <= .2 lb/d all year
1042-NitrophenolDAILY MX <= .34 lb/d all year
1042,4-DichlorophenolDAILY AV <= .19 lb/d all year
1042,4-DichlorophenolDAILY MX <= .54 lb/d all year
1042,4-DimethylphenolDAILY AV <= .09 lb/d all year
1042,4-DimethylphenolDAILY MX <= .18 lb/d all year
1042,4-DinitrotolueneDAILY AV <= .55 lb/d all year
1042,4-DinitrotolueneDAILY MX <= 1.39 lb/d all year
1042,4-DinitrophenolDAILY AV <= .35 lb/d all year
1042,4-DinitrophenolDAILY MX <= .6 lb/d all year
1042,6-DinitrotolueneDAILY AV <= 1.24 lb/d all year
1042,6-DinitrotolueneDAILY MX <= 3.12 lb/d all year
1044-NitrophenolDAILY AV <= .35 lb/d all year
1044-NitrophenolDAILY MX <= .6 lb/d all year
1044,6-Dinitro-o-cresolDAILY AV <= .38 lb/d all year
1044,6-Dinitro-o-cresolDAILY MX <= 1.35 lb/d all year
104PhenolDAILY AV <= .07 lb/d all year
104PhenolDAILY MX <= .13 lb/d all year
104NaphthaleneDAILY AV <= .11 lb/d all year
104NaphthaleneDAILY MX <= .29 lb/d all year
104Di[2-ethylhexyl] phthalate [DEHP]DAILY AV <= .5 lb/d all year
104Di[2-ethylhexyl] phthalate [DEHP]DAILY MX <= 1.36 lb/d all year
104Di-n-butyl phthalateDAILY AV <= .13 lb/d all year
104Di-n-butyl phthalateDAILY MX <= .28 lb/d all year
104Vinyl chlorideDAILY AV <= .51 lb/d all year
104Vinyl chlorideDAILY MX <= 1.304 lb/d all year
104TrichloroethyleneDAILY AV <= .1 lb/d all year
104TrichloroethyleneDAILY MX <= .26 lb/d all year
104Flow, in conduit or thru treatment plantDAILY AV <= 2.4 MGD all year
104Flow, in conduit or thru treatment plantDAILY MX <= 3.5 MGD all year
1041,3-DichloropropyleneDAILY AV <= .14 lb/d all year
1041,3-DichloropropyleneDAILY MX <= .21 lb/d all year
1043,4-BenzofluorantheneDAILY AV <= .11 lb/d all year
1043,4-BenzofluorantheneDAILY MX <= .3 lb/d all year
104ChloroethaneDAILY AV <= .51 lb/d all year
104ChloroethaneDAILY MX <= 1.3 lb/d 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 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 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 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
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 beryllinaSINGSAMP 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