INEOS Oxide — NPDES permit LA0115100: limits, due date and EPA's record

Chemical Preparations, Plaquemine, Louisiana. NPDES permit LA0115100, in force until Apr 14, 2028. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Limits in force (251)

Parameter	Statistic	Limit	Months	Outfall
pH	instantaneous minimum	≥ 6 SU	all year	101
pH	instantaneous maximum	≤ 9 SU	all year	101
Solids, total suspended	daily maximum	≤ 90 mg/L	all year	101
Solids, total suspended	daily maximum	≤ 90 mg/L	all year	101
Oil & Grease	daily maximum	≤ 15 mg/L	all year	101
Carbon, tot organic [TOC]	daily maximum	≤ 50 mg/L	all year	101
Lead, total [as Pb]	daily maximum	≤ 50 ug/L	all year	101
Benzene	daily maximum	≤ 50 ug/L	all year	101
BTEX	daily maximum	≤ 250 ug/L	all year	101
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year	101
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	101
pH	instantaneous minimum	≥ 6 SU	all year	183
pH	instantaneous maximum	≤ 9 SU	all year	183
Oil & Grease	daily maximum	≤ 15 mg/L	all year	183
Carbon, tot organic [TOC]	daily maximum	≤ 50 mg/L	all year	183
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year	183
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	183
BOD, 5-day, 20 deg. C	monthly average	≤ 35.52 mg/L	all year	184
BOD, 5-day, 20 deg. C	daily maximum	≤ 95.84 mg/L	all year	184
pH	instantaneous minimum	≥ 6 SU	all year	184
pH	instantaneous maximum	≤ 9 SU	all year	184
Solids, total suspended	monthly average	≤ 50.14 mg/L	all year	184
Solids, total suspended	daily maximum	≤ 162.41 mg/L	all year	184
Oil & Grease	daily maximum	≤ 15 mg/L	all year	184
Carbon tetrachloride	monthly average	≤ .142 mg/L	all year	184
Carbon tetrachloride	daily maximum	≤ .38 mg/L	all year	184
1,2-Dichloroethane	monthly average	≤ .18 mg/L	all year	184
1,2-Dichloroethane	daily maximum	≤ .574 mg/L	all year	184
Chloroform	monthly average	≤ .111 mg/L	all year	184
Chloroform	daily maximum	≤ .325 mg/L	all year	184
Toluene	monthly average	≤ .028 mg/L	all year	184
Toluene	daily maximum	≤ .074 mg/L	all year	184
Benzene	monthly average	≤ .057 mg/L	all year	184
Benzene	daily maximum	≤ .134 mg/L	all year	184
Acenaphthylene	monthly average	≤ .019 mg/L	all year	184
Acenaphthylene	daily maximum	≤ .047 mg/L	all year	184
Acenaphthene	monthly average	≤ .019 mg/L	all year	184
Acenaphthene	daily maximum	≤ .047 mg/L	all year	184
Acrylonitrile	monthly average	≤ .094 mg/L	all year	184
Acrylonitrile	daily maximum	≤ .232 mg/L	all year	184
Anthracene	monthly average	≤ .019 mg/L	all year	184
Anthracene	daily maximum	≤ .047 mg/L	all year	184
Benzo[b]fluoranthene	monthly average	≤ .02 mg/L	all year	184
Benzo[b]fluoranthene	daily maximum	≤ .048 mg/L	all year	184
Benzo[k]fluoranthene	monthly average	≤ .019 mg/L	all year	184
Benzo[k]fluoranthene	daily maximum	≤ .047 mg/L	all year	184
Benzo[a]pyrene	monthly average	≤ .02 mg/L	all year	184
Benzo[a]pyrene	daily maximum	≤ .048 mg/L	all year	184
Chlorobenzene	monthly average	≤ .142 mg/L	all year	184
Chlorobenzene	daily maximum	≤ .38 mg/L	all year	184
Chrysene	monthly average	≤ .019 mg/L	all year	184
Chrysene	daily maximum	≤ .047 mg/L	all year	184
Diethyl phthalate	monthly average	≤ .046 mg/L	all year	184
Diethyl phthalate	daily maximum	≤ .113 mg/L	all year	184
Dimethyl phthalate	monthly average	≤ .019 mg/L	all year	184
Dimethyl phthalate	daily maximum	≤ .047 mg/L	all year	184
Ethylbenzene	monthly average	≤ .142 mg/L	all year	184
Ethylbenzene	daily maximum	≤ .38 mg/L	all year	184
Fluoranthene	monthly average	≤ .022 mg/L	all year	184
Fluoranthene	daily maximum	≤ .054 mg/L	all year	184
Fluorene	monthly average	≤ .019 mg/L	all year	184
Fluorene	daily maximum	≤ .047 mg/L	all year	184
Hexachlorobutadiene	monthly average	≤ .142 mg/L	all year	184
Hexachlorobutadiene	daily maximum	≤ .38 mg/L	all year	184
Hexachloroethane	monthly average	≤ .196 mg/L	all year	184
Hexachloroethane	daily maximum	≤ .794 mg/L	all year	184
Methyl chloride [Chloromethane]	monthly average	≤ .11 mg/L	all year	184
Methyl chloride [Chloromethane]	daily maximum	≤ .295 mg/L	all year	184
Methylene chloride	monthly average	≤ .036 mg/L	all year	184
Methylene chloride	daily maximum	≤ .17 mg/L	all year	184
Nitrobenzene	monthly average	≤ 2.237 mg/L	all year	184
Nitrobenzene	daily maximum	≤ 6.402 mg/L	all year	184
Phenanthrene	monthly average	≤ .019 mg/L	all year	184
Phenanthrene	daily maximum	≤ .047 mg/L	all year	184
Pyrene	monthly average	≤ .02 mg/L	all year	184
Pyrene	daily maximum	≤ .048 mg/L	all year	184
Tetrachloroethylene	monthly average	≤ .052 mg/L	all year	184
Tetrachloroethylene	daily maximum	≤ .164 mg/L	all year	184
1,1-Dichloroethane	monthly average	≤ .022 mg/L	all year	184
1,1-Dichloroethane	daily maximum	≤ .059 mg/L	all year	184
1,1-Dichloroethylene	monthly average	≤ .022 mg/L	all year	184
1,1-Dichloroethylene	daily maximum	≤ .06 mg/L	all year	184
1,1,1-Trichloroethane	monthly average	≤ .022 mg/L	all year	184
1,1,1-Trichloroethane	daily maximum	≤ .059 mg/L	all year	184
1,1,2-Trichloroethane	monthly average	≤ .032 mg/L	all year	184
1,1,2-Trichloroethane	daily maximum	≤ .127 mg/L	all year	184
Benzo[a]anthracene	monthly average	≤ .019 mg/L	all year	184
Benzo[a]anthracene	daily maximum	≤ .047 mg/L	all year	184
1,2-Dichlorobenzene	monthly average	≤ .196 mg/L	all year	184
1,2-Dichlorobenzene	daily maximum	≤ .794 mg/L	all year	184
1,2-Dichloropropane	monthly average	≤ .196 mg/L	all year	184
1,2-Dichloropropane	daily maximum	≤ .794 mg/L	all year	184
trans-1,2-Dichloroethylene	monthly average	≤ .025 mg/L	all year	184
trans-1,2-Dichloroethylene	daily maximum	≤ .066 mg/L	all year	184
1,2,4-Trichlorobenzene	monthly average	≤ .196 mg/L	all year	184
1,2,4-Trichlorobenzene	daily maximum	≤ .794 mg/L	all year	184
1,3-Dichlorobenzene	monthly average	≤ .142 mg/L	all year	184
1,3-Dichlorobenzene	daily maximum	≤ .38 mg/L	all year	184
1,4-Dichlorobenzene	monthly average	≤ .142 mg/L	all year	184
1,4-Dichlorobenzene	daily maximum	≤ .38 mg/L	all year	184
2-Nitrophenol	monthly average	≤ .065 mg/L	all year	184
2-Nitrophenol	daily maximum	≤ .231 mg/L	all year	184
2,4-Dimethylphenol	monthly average	≤ .019 mg/L	all year	184
2,4-Dimethylphenol	daily maximum	≤ .047 mg/L	all year	184
2,4-Dinitrophenol	monthly average	≤ 1.207 mg/L	all year	184
2,4-Dinitrophenol	daily maximum	≤ 4.291 mg/L	all year	184
4-Nitrophenol	monthly average	≤ .162 mg/L	all year	184
4-Nitrophenol	daily maximum	≤ .576 mg/L	all year	184
4,6-Dinitro-o-cresol	monthly average	≤ .078 mg/L	all year	184
4,6-Dinitro-o-cresol	daily maximum	≤ .275 mg/L	all year	184
Phenol	monthly average	≤ .019 mg/L	all year	184
Phenol	daily maximum	≤ .047 mg/L	all year	184
Phenol	monthly average	≤ .05 lb/d	all year	184
Phenol	daily maximum	≤ .12 lb/d	all year	184
Naphthalene	monthly average	≤ .019 mg/L	all year	184
Naphthalene	daily maximum	≤ .047 mg/L	all year	184
Di[2-ethylhexyl] phthalate [DEHP]	monthly average	≤ .095 mg/L	all year	184
Di[2-ethylhexyl] phthalate [DEHP]	daily maximum	≤ .258 mg/L	all year	184
Di-n-butyl phthalate	monthly average	≤ .02 mg/L	all year	184
Di-n-butyl phthalate	daily maximum	≤ .043 mg/L	all year	184
Vinyl chloride	monthly average	≤ .097 mg/L	all year	184
Vinyl chloride	daily maximum	≤ .172 mg/L	all year	184
Trichloroethylene	monthly average	≤ .026 mg/L	all year	184
Trichloroethylene	daily maximum	≤ .069 mg/L	all year	184
Hexachlorobenzene	monthly average	≤ .196 mg/L	all year	184
Hexachlorobenzene	daily maximum	≤ .794 mg/L	all year	184
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year	184
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	184
1,3-Dichloropropylene	monthly average	≤ .196 mg/L	all year	184
1,3-Dichloropropylene	daily maximum	≤ .794 mg/L	all year	184
Chloroethane	monthly average	≤ .11 mg/L	all year	184
Chloroethane	daily maximum	≤ .295 mg/L	all year	184
BOD, 5-day, 20 deg. C	monthly average	≤ 32 lb/d	all year	185
BOD, 5-day, 20 deg. C	daily maximum	≤ 85 lb/d	all year	185
pH	instantaneous minimum	≥ 6 SU	all year	185
pH	instantaneous maximum	≤ 9 SU	all year	185
Solids, total suspended	monthly average	≤ 44 lb/d	all year	185
Solids, total suspended	daily maximum	≤ 144 lb/d	all year	185
Oil & Grease	daily maximum	≤ 41 lb/d	all year	185
Carbon tetrachloride	monthly average	≤ .038 lb/d	all year	185
Carbon tetrachloride	daily maximum	≤ .1 lb/d	all year	185
1,2-Dichloroethane	monthly average	≤ .18 mg/L	all year	185
1,2-Dichloroethane	daily maximum	≤ .574 mg/L	all year	185
Chloroform	monthly average	≤ .03 lb/d	all year	185
Chloroform	daily maximum	≤ .09 lb/d	all year	185
Toluene	monthly average	≤ .01 lb/d	all year	185
Toluene	daily maximum	≤ .02 lb/d	all year	185
Benzene	monthly average	≤ .02 lb/d	all year	185
Benzene	daily maximum	≤ .04 lb/d	all year	185
Acenaphthylene	monthly average	≤ .005 lb/d	all year	185
Acenaphthylene	daily maximum	≤ .012 lb/d	all year	185
Acenaphthene	monthly average	≤ .005 lb/d	all year	185
Acenaphthene	daily maximum	≤ .012 lb/d	all year	185
Acrylonitrile	monthly average	≤ .02 lb/d	all year	185
Acrylonitrile	daily maximum	≤ .06 lb/d	all year	185
Anthracene	monthly average	≤ .005 lb/d	all year	185
Anthracene	daily maximum	≤ .012 lb/d	all year	185
Benzo[b]fluoranthene	monthly average	≤ .005 lb/d	all year	185
Benzo[b]fluoranthene	daily maximum	≤ .013 lb/d	all year	185
Benzo[k]fluoranthene	monthly average	≤ .005 lb/d	all year	185
Benzo[k]fluoranthene	daily maximum	≤ .012 lb/d	all year	185
Benzo[a]pyrene	monthly average	≤ .005 lb/d	all year	185
Benzo[a]pyrene	daily maximum	≤ .013 lb/d	all year	185
Chlorobenzene	monthly average	≤ .038 lb/d	all year	185
Chlorobenzene	daily maximum	≤ .1 lb/d	all year	185
Chrysene	monthly average	≤ .005 lb/d	all year	185
Chrysene	daily maximum	≤ .012 lb/d	all year	185
Diethyl phthalate	monthly average	≤ .01 lb/d	all year	185
Diethyl phthalate	daily maximum	≤ .03 lb/d	all year	185
Dimethyl phthalate	monthly average	≤ .005 lb/d	all year	185
Dimethyl phthalate	daily maximum	≤ .012 lb/d	all year	185
Ethylbenzene	monthly average	≤ .04 lb/d	all year	185
Ethylbenzene	daily maximum	≤ .1 lb/d	all year	185
Fluoranthene	monthly average	≤ .006 lb/d	all year	185
Fluoranthene	daily maximum	≤ .014 lb/d	all year	185
Fluorene	monthly average	≤ .005 lb/d	all year	185
Fluorene	daily maximum	≤ .012 lb/d	all year	185
Hexachlorobutadiene	monthly average	≤ .04 lb/d	all year	185
Hexachlorobutadiene	daily maximum	≤ .1 lb/d	all year	185
Hexachloroethane	monthly average	≤ .05 lb/d	all year	185
Hexachloroethane	daily maximum	≤ .21 lb/d	all year	185
Methyl chloride [Chloromethane]	monthly average	≤ .03 lb/d	all year	185
Methyl chloride [Chloromethane]	daily maximum	≤ .08 lb/d	all year	185
Methylene chloride	monthly average	≤ .01 lb/d	all year	185
Methylene chloride	daily maximum	≤ .05 lb/d	all year	185
Nitrobenzene	monthly average	≤ .89 lb/d	all year	185
Nitrobenzene	daily maximum	≤ 1.7 lb/d	all year	185
Phenanthrene	monthly average	≤ .005 lb/d	all year	185
Phenanthrene	daily maximum	≤ .012 lb/d	all year	185
Pyrene	monthly average	≤ .005 lb/d	all year	185
Pyrene	daily maximum	≤ .013 lb/d	all year	185
Tetrachloroethylene	monthly average	≤ .01 lb/d	all year	185
Tetrachloroethylene	daily maximum	≤ .04 lb/d	all year	185
1,1-Dichloroethane	monthly average	≤ .01 lb/d	all year	185
1,1-Dichloroethane	daily maximum	≤ .02 lb/d	all year	185
1,1-Dichloroethylene	monthly average	≤ .006 lb/d	all year	185
1,1-Dichloroethylene	daily maximum	≤ .02 lb/d	all year	185
1,1,1-Trichloroethane	monthly average	≤ .01 lb/d	all year	185
1,1,1-Trichloroethane	daily maximum	≤ .02 lb/d	all year	185
1,1,2-Trichloroethane	monthly average	≤ .01 lb/d	all year	185
1,1,2-Trichloroethane	daily maximum	≤ .03 lb/d	all year	185
Benzo[a]anthracene	monthly average	≤ .005 lb/d	all year	185
Benzo[a]anthracene	daily maximum	≤ .012 lb/d	all year	185
1,2-Dichlorobenzene	monthly average	≤ .05 lb/d	all year	185
1,2-Dichlorobenzene	daily maximum	≤ .21 lb/d	all year	185
1,2-Dichloropropane	monthly average	≤ .05 lb/d	all year	185
1,2-Dichloropropane	daily maximum	≤ .21 lb/d	all year	185
trans-1,2-Dichloroethylene	monthly average	≤ .01 lb/d	all year	185
trans-1,2-Dichloroethylene	daily maximum	≤ .02 lb/d	all year	185
1,2,4-Trichlorobenzene	monthly average	≤ .05 lb/d	all year	185
1,2,4-Trichlorobenzene	daily maximum	≤ .21 lb/d	all year	185
1,3-Dichlorobenzene	monthly average	≤ .04 lb/d	all year	185
1,3-Dichlorobenzene	daily maximum	≤ .1 lb/d	all year	185
1,4-Dichlorobenzene	monthly average	≤ .038 lb/d	all year	185
1,4-Dichlorobenzene	daily maximum	≤ .1 lb/d	all year	185
2-Nitrophenol	monthly average	≤ .02 lb/d	all year	185
2-Nitrophenol	daily maximum	≤ .06 lb/d	all year	185
2,4-Dimethylphenol	monthly average	≤ .005 lb/d	all year	185
2,4-Dimethylphenol	daily maximum	≤ .01 lb/d	all year	185
2,4-Dinitrophenol	monthly average	≤ .32 lb/d	all year	185
2,4-Dinitrophenol	daily maximum	≤ 1.14 lb/d	all year	185
4-Nitrophenol	monthly average	≤ .04 lb/d	all year	185
4-Nitrophenol	daily maximum	≤ .15 lb/d	all year	185
4,6-Dinitro-o-cresol	monthly average	≤ .02 lb/d	all year	185
4,6-Dinitro-o-cresol	daily maximum	≤ .07 lb/d	all year	185
Phenol	monthly average	≤ .005 lb/d	all year	185
Phenol	daily maximum	≤ .01 lb/d	all year	185
Naphthalene	monthly average	≤ .005 lb/d	all year	185
Naphthalene	daily maximum	≤ .012 lb/d	all year	185
Di[2-ethylhexyl] phthalate [DEHP]	monthly average	≤ .03 lb/d	all year	185
Di[2-ethylhexyl] phthalate [DEHP]	daily maximum	≤ .07 lb/d	all year	185
Di-n-butyl phthalate	monthly average	≤ .005 lb/d	all year	185
Di-n-butyl phthalate	daily maximum	≤ .011 lb/d	all year	185
Vinyl chloride	monthly average	≤ .03 lb/d	all year	185
Vinyl chloride	daily maximum	≤ .05 lb/d	all year	185
Trichloroethylene	monthly average	≤ .01 lb/d	all year	185
Trichloroethylene	daily maximum	≤ .02 lb/d	all year	185
Hexachlorobenzene	monthly average	≤ .052 lb/d	all year	185
Hexachlorobenzene	daily maximum	≤ .21 lb/d	all year	185
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year	185
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	185
1,3-Dichloropropylene	monthly average	≤ .196 mg/L	all year	185
1,3-Dichloropropylene	daily maximum	≤ .794 mg/L	all year	185
Chloroethane	monthly average	≤ .11 mg/L	all year	185
Chloroethane	daily maximum	≤ .295 mg/L	all year	185
pH	instantaneous minimum	≥ 6 SU	all year	186
pH	instantaneous maximum	≤ 9 SU	all year	186
Oil & Grease	daily maximum	≤ 15 mg/L	all year	186
Carbon, tot organic [TOC]	daily maximum	≤ 50 mg/L	all year	186
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year	186
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	186

How strict are these limits?

Your permit document is the final word. As JSON: /api/v1/permits/LA0115100 · MCP: https://passage-data.com/mcp