MONUMENT CHEMICAL PORT ARTHUR LLC

NPDES permit TX0116360 · Minor NON-POTW · effective, expires 2029-01-05 · 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

8values over a limit
0required values missing, on 0 form(s)
0of 12 forms filed late

Last period with anything received: 2026-07-31. Most often over: BOD, 5-day, 20 deg. C (4), pH (2), Oxygen demand, chem. [high level] [COD] (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 (124)

OutfallParameterStatisticLimitMonths
001BOD, 5-day, 20 deg. CDAILY AV <= 30 mg/L all year
001BOD, 5-day, 20 deg. CDAILY MX <= 90 mg/L all year
001BOD, 5-day, 20 deg. CDAILY AV <= 9.28 lb/d all year
001BOD, 5-day, 20 deg. CDAILY MX <= 23.78 lb/d all year
001Oxygen demand, chem. [high level] [COD]DAILY MX <= 200 mg/L all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedDAILY AV <= 30 mg/L all year
001Solids, total suspendedDAILY MX <= 100 mg/L all year
001Solids, total suspendedDAILY AV <= 16.69 lb/d all year
001Solids, total suspendedDAILY MX <= 48.48 lb/d all year
001Oil & GreaseDAILY MX <= 15 mg/L all year
001Zinc, total [as Zn]DAILY AV <= .21 mg/L all year
001Zinc, total [as Zn]DAILY MX <= .44 mg/L all year
001Carbon tetrachlorideDAILY AV <= .019 lb/d all year
001Carbon tetrachlorideDAILY MX <= .05 lb/d all year
0011,2-DichloroethaneDAILY AV <= .024 lb/d all year
0011,2-DichloroethaneDAILY MX <= .076 lb/d all year
001ChloroformDAILY AV <= .015 lb/d all year
001ChloroformDAILY MX <= .043 lb/d all year
001TolueneDAILY AV <= .011 lb/d all year
001TolueneDAILY MX <= .028 lb/d all year
001BenzeneDAILY AV <= .008 lb/d all year
001BenzeneDAILY MX <= .018 lb/d all year
001AcenaphthyleneDAILY AV <= .0025 lb/d all year
001AcenaphthyleneDAILY MX <= .0062 lb/d all year
001AcenaphtheneDAILY AV <= .0025 lb/d all year
001AcenaphtheneDAILY MX <= .0062 lb/d all year
001AcrylonitrileDAILY AV <= .012 lb/d all year
001AcrylonitrileDAILY MX <= .031 lb/d all year
001AnthraceneDAILY AV <= .0025 lb/d all year
001AnthraceneDAILY MX <= .0062 lb/d all year
001Benzo[k]fluorantheneDAILY AV <= .0025 lb/d all year
001Benzo[k]fluorantheneDAILY MX <= .0062 lb/d all year
001Benzo[a]pyreneDAILY AV <= .000071 lb/d all year
001Benzo[a]pyreneDAILY MX <= .00015 lb/d all year
001ChlorobenzeneDAILY AV <= .019 lb/d all year
001ChlorobenzeneDAILY MX <= .05 lb/d all year
001ChryseneDAILY AV <= .0025 lb/d all year
001ChryseneDAILY MX <= .0062 lb/d all year
001Diethyl phthalateDAILY AV <= .006 lb/d all year
001Diethyl phthalateDAILY MX <= .015 lb/d all year
001Dimethyl phthalateDAILY AV <= .0025 lb/d all year
001Dimethyl phthalateDAILY MX <= .0062 lb/d all year
001EthylbenzeneDAILY AV <= .019 lb/d all year
001EthylbenzeneDAILY MX <= .05 lb/d all year
001FluorantheneDAILY AV <= .0026 lb/d all year
001FluorantheneDAILY MX <= .007 lb/d all year
001FluoreneDAILY AV <= .0025 lb/d all year
001FluoreneDAILY MX <= .0062 lb/d all year
001HexachlorobutadieneDAILY AV <= .0063 lb/d all year
001HexachlorobutadieneDAILY MX <= .013 lb/d all year
001HexachloroethaneDAILY AV <= .026 lb/d all year
001HexachloroethaneDAILY MX <= .1 lb/d all year
001Methyl chloride [Chloromethane]DAILY AV <= .015 lb/d all year
001Methyl chloride [Chloromethane]DAILY MX <= .039 lb/d all year
001Methylene chlorideDAILY AV <= .0047 lb/d all year
001Methylene chlorideDAILY MX <= .022 lb/d all year
001NitrobenzeneDAILY AV <= .29 lb/d all year
001NitrobenzeneDAILY MX <= .84 lb/d all year
001PhenanthreneDAILY AV <= .012 mg/L all year
001PhenanthreneDAILY MX <= .026 mg/L all year
001PhenanthreneDAILY AV <= .0025 lb/d all year
001PhenanthreneDAILY MX <= .0062 lb/d all year
001PyreneDAILY AV <= .0026 lb/d all year
001PyreneDAILY MX <= .0063 lb/d all year
001TetrachloroethyleneDAILY AV <= .013 lb/d all year
001TetrachloroethyleneDAILY MX <= .034 lb/d all year
0011,1-DichloroethaneDAILY AV <= .0029 lb/d all year
0011,1-DichloroethaneDAILY MX <= .0078 lb/d all year
0011,1-DichloroethyleneDAILY AV <= .0029 lb/d all year
0011,1-DichloroethyleneDAILY MX <= .0079 lb/d all year
0011,1,1-TrichloroethaneDAILY AV <= .0029 lb/d all year
0011,1,1-TrichloroethaneDAILY MX <= .0078 lb/d all year
0011,1,2-TrichloroethaneDAILY AV <= .0042 lb/d all year
0011,1,2-TrichloroethaneDAILY MX <= .017 lb/d all year
001Benzo[a]anthraceneDAILY AV <= .00071 lb/d all year
001Benzo[a]anthraceneDAILY MX <= .0015 lb/d all year
0011,2-DichlorobenzeneDAILY AV <= .026 lb/d all year
0011,2-DichlorobenzeneDAILY MX <= .1 lb/d all year
0011,2-DichloropropaneDAILY AV <= .026 lb/d all year
0011,2-DichloropropaneDAILY MX <= .1 lb/d all year
001trans-1,2-DichloroethyleneDAILY AV <= .0033 lb/d all year
001trans-1,2-DichloroethyleneDAILY MX <= .0087 lb/d all year
0011,2,4-TrichlorobenzeneDAILY AV <= .026 lb/d all year
0011,2,4-TrichlorobenzeneDAILY MX <= .1 lb/d all year
0011,3-DichlorobenzeneDAILY AV <= .019 lb/d all year
0011,3-DichlorobenzeneDAILY MX <= .05 lb/d all year
0011,4-DichlorobenzeneDAILY AV <= .019 lb/d all year
0011,4-DichlorobenzeneDAILY MX <= .05 lb/d all year
0012-NitrophenolDAILY AV <= .0086 lb/d all year
0012-NitrophenolDAILY MX <= .03 lb/d all year
0012,4-DimethylphenolDAILY AV <= .0025 lb/d all year
0012,4-DimethylphenolDAILY MX <= .0062 lb/d all year
0012,4-DinitrophenolDAILY AV <= .16 lb/d all year
0012,4-DinitrophenolDAILY MX <= .57 lb/d all year
0014-NitrophenolDAILY AV <= .021 lb/d all year
0014-NitrophenolDAILY MX <= .076 lb/d all year
0014,6-Dinitro-o-cresolDAILY AV <= .01 lb/d all year
0014,6-Dinitro-o-cresolDAILY MX <= .037 lb/d all year
001PhenolDAILY AV <= .0025 lb/d all year
001PhenolDAILY MX <= .006 lb/d all year
001NaphthaleneDAILY AV <= .0025 lb/d all year
001NaphthaleneDAILY MX <= .0062 lb/d all year
001Di[2-ethylhexyl] phthalate [DEHP]DAILY AV <= .013 lb/d all year
001Di[2-ethylhexyl] phthalate [DEHP]DAILY MX <= .034 lb/d all year
001Di-n-butyl phthalateDAILY AV <= .0026 lb/d all year
001Di-n-butyl phthalateDAILY MX <= .006 lb/d all year
001Vinyl chlorideDAILY AV <= .011 lb/d all year
001Vinyl chlorideDAILY MX <= .027 lb/d all year
001TrichloroethyleneDAILY AV <= .013 lb/d all year
001TrichloroethyleneDAILY MX <= .04 lb/d all year
001HexachlorobenzeneDAILY AV <= .000023 mg/L all year
001HexachlorobenzeneDAILY MX <= .000049 mg/L all year
001HexachlorobenzeneDAILY AV <= .000019 lb/d all year
001HexachlorobenzeneDAILY MX <= .000041 lb/d all year
001Flow, in conduit or thru treatment plantDAILY AV <= .1 MGD all year
001Flow, in conduit or thru treatment plantDAILY MX <= .2 MGD all year
0011,3-DichloropropyleneDAILY AV <= .026 lb/d all year
0011,3-DichloropropyleneDAILY MX <= .1 lb/d all year
0013,4-BenzofluorantheneDAILY AV <= .0026 lb/d all year
0013,4-BenzofluorantheneDAILY MX <= .0063 lb/d all year
001ChloroethaneDAILY AV <= .015 lb/d all year
001ChloroethaneDAILY MX <= .039 lb/d 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