INEOS USA LLC

NPDES permit TX0004821 · Major NON-POTW · effective, expires 2028-06-29 · EPA's file as of 2026-09-19

Check this month's numbers before you file

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

7values over a limit
2required values missing, on 1 form(s)
0of 73 forms filed late

Last period with anything received: 2026-07-31. Most often over: Enterococci (4), pH (1), Temperature, water deg. fahrenheit (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 (194)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitDAILY MX <= 95 deg F all year
001BOD, 5-day, 20 deg. CDAILY AV <= 843 lb/d all year
001BOD, 5-day, 20 deg. CDAILY MX <= 2123 lb/d all year
001Oxygen demand, chem. [high level] [COD]DAILY AV <= 6676 lb/d all year
001Oxygen demand, chem. [high level] [COD]DAILY MX <= 13352 lb/d all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedDAILY AV <= 1570 lb/d all year
001Solids, total suspendedDAILY MX <= 4497 lb/d all year
001Cyanide, free [as free]DAILY AV <= .586 lb/d all year
001Cyanide, free [as free]DAILY MX <= 1.24 lb/d all year
001Carbon tetrachlorideDAILY AV <= .48 lb/d all year
001Carbon tetrachlorideDAILY MX <= 1.02 lb/d all year
0011,2-DichloroethaneDAILY AV <= 1.83 lb/d all year
0011,2-DichloroethaneDAILY MX <= 5.67 lb/d all year
001ChloroformDAILY AV <= .56 lb/d all year
001ChloroformDAILY MX <= 1.24 lb/d all year
001TolueneDAILY AV <= .7 lb/d all year
001TolueneDAILY MX <= 2.15 lb/d all year
001BenzeneDAILY AV <= .99 lb/d all year
001BenzeneDAILY MX <= 3.65 lb/d all year
001AcenaphthyleneDAILY AV <= .59 lb/d all year
001AcenaphthyleneDAILY MX <= 1.59 lb/d all year
001AcenaphtheneDAILY AV <= .59 lb/d all year
001AcenaphtheneDAILY MX <= 1.59 lb/d all year
001AcrylonitrileDAILY AV <= 2.58 lb/d all year
001AcrylonitrileDAILY MX <= 6.5 lb/d all year
001AnthraceneDAILY AV <= .59 lb/d all year
001AnthraceneDAILY MX <= 1.59 lb/d all year
001Benzo[k]fluorantheneDAILY AV <= .59 lb/d all year
001Benzo[k]fluorantheneDAILY MX <= 1.59 lb/d all year
001Benzo[a]pyreneDAILY AV <= .62 lb/d all year
001Benzo[a]pyreneDAILY MX <= 1.59 lb/d all year
001ChlorobenzeneDAILY AV <= .4 lb/d all year
001ChlorobenzeneDAILY MX <= .75 lb/d all year
001ChryseneDAILY AV <= .59 lb/d all year
001ChryseneDAILY MX <= 1.59 lb/d all year
001Diethyl phthalateDAILY AV <= 2.18 lb/d all year
001Diethyl phthalateDAILY MX <= 5.45 lb/d all year
001Dimethyl phthalateDAILY AV <= .51 lb/d all year
001Dimethyl phthalateDAILY MX <= 1.26 lb/d all year
001EthylbenzeneDAILY AV <= .86 lb/d all year
001EthylbenzeneDAILY MX <= 2.9 lb/d all year
001FluorantheneDAILY AV <= .67 lb/d all year
001FluorantheneDAILY MX <= 1.83 lb/d all year
001FluoreneDAILY AV <= .59 lb/d all year
001FluoreneDAILY MX <= 1.59 lb/d all year
001HexachlorobutadieneDAILY AV <= .54 lb/d all year
001HexachlorobutadieneDAILY MX <= 1.32 lb/d all year
001HexachloroethaneDAILY AV <= .56 lb/d all year
001HexachloroethaneDAILY MX <= 1.45 lb/d all year
001Methyl chloride [Chloromethane]DAILY AV <= 2.31 lb/d all year
001Methyl chloride [Chloromethane]DAILY MX <= 5.11 lb/d all year
001Methylene chlorideDAILY AV <= 1.07 lb/d all year
001Methylene chlorideDAILY MX <= 2.39 lb/d all year
001NitrobenzeneDAILY AV <= .73 lb/d all year
001NitrobenzeneDAILY MX <= 1.83 lb/d all year
001PhenanthreneDAILY AV <= .59 lb/d all year
001PhenanthreneDAILY MX <= 1.59 lb/d all year
001PyreneDAILY AV <= .67 lb/d all year
001PyreneDAILY MX <= 1.8 lb/d all year
001TetrachloroethyleneDAILY AV <= .59 lb/d all year
001TetrachloroethyleneDAILY MX <= 1.5 lb/d all year
0011,1-DichloroethaneDAILY AV <= .59 lb/d all year
0011,1-DichloroethaneDAILY MX <= 1.59 lb/d all year
0011,1-DichloroethyleneDAILY AV <= .43 lb/d all year
0011,1-DichloroethyleneDAILY MX <= .67 lb/d all year
0011,1,1-TrichloroethaneDAILY AV <= .56 lb/d all year
0011,1,1-TrichloroethaneDAILY MX <= 1.45 lb/d all year
0011,1,2-TrichloroethaneDAILY AV <= .56 lb/d all year
0011,1,2-TrichloroethaneDAILY MX <= 1.45 lb/d all year
001Benzo[a]anthraceneDAILY AV <= .59 lb/d all year
001Benzo[a]anthraceneDAILY MX <= 1.59 lb/d all year
0011,2-DichlorobenzeneDAILY AV <= 2.07 lb/d all year
0011,2-DichlorobenzeneDAILY MX <= 4.38 lb/d all year
0011,2-DichloropropaneDAILY AV <= 4.11 lb/d all year
0011,2-DichloropropaneDAILY MX <= 6.18 lb/d all year
001trans-1,2-DichloroethyleneDAILY AV <= .56 lb/d all year
001trans-1,2-DichloroethyleneDAILY MX <= 1.45 lb/d all year
0011,2,4-TrichlorobenzeneDAILY AV <= 1.83 lb/d all year
0011,2,4-TrichlorobenzeneDAILY MX <= 3.76 lb/d all year
0011,3-DichlorobenzeneDAILY AV <= .83 lb/d all year
0011,3-DichlorobenzeneDAILY MX <= 1.18 lb/d all year
0011,4-DichlorobenzeneDAILY AV <= .4 lb/d all year
0011,4-DichlorobenzeneDAILY MX <= .75 lb/d all year
0012-ChlorophenolDAILY AV <= .83 lb/d all year
0012-ChlorophenolDAILY MX <= 2.63 lb/d all year
0012-NitrophenolDAILY AV <= 1.1 lb/d all year
0012-NitrophenolDAILY MX <= 1.85 lb/d all year
0012,4-DichlorophenolDAILY AV <= 1.05 lb/d all year
0012,4-DichlorophenolDAILY MX <= 3.01 lb/d all year
0012,4-DimethylphenolDAILY AV <= .48 lb/d all year
0012,4-DimethylphenolDAILY MX <= .97 lb/d all year
0012,4-DinitrotolueneDAILY AV <= 3.04 lb/d all year
0012,4-DinitrotolueneDAILY MX <= 7.66 lb/d all year
0012,4-DinitrophenolDAILY AV <= 1.91 lb/d all year
0012,4-DinitrophenolDAILY MX <= 3.31 lb/d all year
0012,6-DinitrotolueneDAILY AV <= 6.85 lb/d all year
0012,6-DinitrotolueneDAILY MX <= 17.22 lb/d all year
0014-NitrophenolDAILY AV <= 1.93 lb/d all year
0014-NitrophenolDAILY MX <= 3.33 lb/d all year
0014,6-Dinitro-o-cresolDAILY AV <= 2.1 lb/d all year
0014,6-Dinitro-o-cresolDAILY MX <= 7.44 lb/d all year
001PhenolDAILY AV <= .4 lb/d all year
001PhenolDAILY MX <= .7 lb/d all year
001NaphthaleneDAILY AV <= .59 lb/d all year
001NaphthaleneDAILY MX <= 1.59 lb/d all year
001Di[2-ethylhexyl] phthalate [DEHP]DAILY AV <= 2.77 lb/d all year
001Di[2-ethylhexyl] phthalate [DEHP]DAILY MX <= 7.49 lb/d all year
001Di-n-butyl phthalateDAILY AV <= .73 lb/d all year
001Di-n-butyl phthalateDAILY MX <= 1.53 lb/d all year
001Vinyl chlorideDAILY AV <= 2.79 lb/d all year
001Vinyl chlorideDAILY MX <= 7.2 lb/d all year
001TrichloroethyleneDAILY AV <= .56 lb/d all year
001TrichloroethyleneDAILY MX <= 1.45 lb/d all year
001HexachlorobenzeneDAILY AV <= .01 lb/d all year
001HexachlorobenzeneDAILY MX <= .022 lb/d all year
0011,3-DichloropropyleneDAILY AV <= .78 lb/d all year
0011,3-DichloropropyleneDAILY MX <= 1.18 lb/d all year
001Flow [dry weather]DAILY AV <= 8 MGD all year
001Flow [dry weather]DAILY MX report only all year
0013,4-BenzofluorantheneDAILY AV <= .62 lb/d all year
0013,4-BenzofluorantheneDAILY MX <= 1.64 lb/d all year
001ChloroethaneDAILY AV <= 2.79 lb/d all year
001ChloroethaneDAILY MX <= 7.2 lb/d all year
002pHMINIMUM >= 6 SU all year
002pHMAXIMUM <= 10 SU all year
002Oil & GreaseDAILY MX <= 15 mg/L all year
002Carbon, tot organic [TOC]DAILY MX <= 55 mg/L all year
002Lead, total [as Pb]DAILY AV report only all year
002Lead, total [as Pb]DAILY MX <= .1 mg/L all year
002Benzene, ethylbenzene, toluene, xylene combinationDAILY AV report only all year
002Benzene, ethylbenzene, toluene, xylene combinationDAILY MX <= .5 mg/L all year
002BenzeneDAILY AV report only all year
002BenzeneDAILY MX <= .05 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
002Hydrocarbons, petroleumDAILY AV report only all year
002Hydrocarbons, petroleumDAILY MX <= 15 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
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
004Flow, in conduit or thru treatment plantDAILY AV report only all year
004Flow, in conduit or thru treatment plantDAILY MX report only all year
005pHMINIMUM >= 6 SU all year
005pHMAXIMUM <= 9 SU all year
005Oil & GreaseDAILY MX <= 15 mg/L all year
005Carbon, tot organic [TOC]DAILY MX <= 75 mg/L all year
005Flow, in conduit or thru treatment plantDAILY AV report only all year
005Flow, 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
101Chlorine, total residualMO MIN >= 1 mg/L all year
101EnterococciDAILY AV <= 35 CFU/100mL all year
101EnterococciDAILY MX <= 104 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
TX1Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)7 DA MIN report only all year
TX1Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)MO AV MN report only all year
TX1Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia menidia7 DA MIN report only all year
TX1Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia menidiaMO AV MN report only all year
TX1NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7 DA MIN report only all year
TX1NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MO AV MN report only all year
TX1NOEC Lethal Static Renewal 7 Day Chronic Menidia menidia7 DA MIN report only all year
TX1NOEC Lethal Static Renewal 7 Day Chronic Menidia menidiaMO AV MN report only all year
TX1NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7 DA MIN report only all year
TX1NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MO AV MN report only all year
TX1NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia7 DA MIN report only all year
TX1NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia menidiaMO AV MN report only all year
TX1Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7 DA MIN report only all year
TX1Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MO AV MN report only all year
TX1Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia7 DA MIN report only all year
TX1Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia menidiaMO AV MN report only all year
TX1LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7 DA MIN report only all year
TX1LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MO AV MN report only all year
TX1LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia menidia7 DA MIN report only all year
TX1LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia menidiaMO AV MN report only all year
TX1LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)7 DA MIN report only all year
TX1LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)MO AV MN report only all year
TX1LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Menidia menidia7 DA MIN report only all year
TX1LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Menidia menidiaMO 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