Dow Hydrocarbons and Resources LLC+ — NPDES permit TX0002844: limits, due date and EPA's record

Industrial Organic Chemicals, major discharger, Seadrift, Texas. NPDES permit TX0002844 expired Jul 8, 2026; its limits still apply. Last 12 months: over a limit once (last June 2026). Source: EPA ECHO, Oct 22, 2026.

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period ending	Parameter	Reported	Limit	Over by
June 2026	Flow [dry weather], daily average	6.22 MGD	≤ 5.8 MGD	7%

Limits in force (363)

Parameter	Statistic	Limit	Months	Outfall
BOD, 5-day, 20 deg. C	daily average	≤ 34.8 mg/L	all year	001
BOD, 5-day, 20 deg. C	daily maximum	report only (mg/L)	all year	001
BOD, 5-day, 20 deg. C	daily average	≤ 1187 lb/d	all year	001
BOD, 5-day, 20 deg. C	daily maximum	≤ 3106 lb/d	all year	001
BOD, 5-day, 20 deg. C	daily maximum	≤ 100 mg/L	all year	001
pH	minimum	≥ 5 SU	all year	001
pH	maximum	≤ 11 SU	all year	001
Solids, total suspended	daily average	report only (mg/L)	all year	001
Solids, total suspended	daily maximum	report only (mg/L)	all year	001
Solids, total suspended	daily average	≤ 1966 lb/d	all year	001
Solids, total suspended	daily maximum	≤ 6375 lb/d	all year	001
Solids, total suspended	daily maximum	≤ 280 mg/L	all year	001
Carbon, tot organic [TOC]	daily average	report only (mg/L)	all year	001
Carbon, tot organic [TOC]	daily maximum	report only (mg/L)	all year	001
Carbon tetrachloride	daily average	≤ .57 lb/d	all year	001
Carbon tetrachloride	daily maximum	≤ 1.21 lb/d	all year	001
1,2-Dichloroethane	daily average	≤ 2.16 lb/d	all year	001
1,2-Dichloroethane	daily maximum	≤ 6.69 lb/d	all year	001
Chloroform	daily average	≤ .67 lb/d	all year	001
Chloroform	daily maximum	≤ 1.46 lb/d	all year	001
Toluene	daily average	≤ .82 lb/d	all year	001
Toluene	daily maximum	≤ 2.54 lb/d	all year	001
Benzene	daily average	≤ 1.17 lb/d	all year	001
Benzene	daily maximum	≤ 4.31 lb/d	all year	001
Acenaphthylene	daily average	≤ .7 lb/d	all year	001
Acenaphthylene	daily maximum	≤ 1.87 lb/d	all year	001
Acenaphthene	daily average	≤ .7 lb/d	all year	001
Acenaphthene	daily maximum	≤ 1.87 lb/d	all year	001
Acrylonitrile	daily average	≤ 3.04 lb/d	all year	001
Acrylonitrile	daily maximum	≤ 7.67 lb/d	all year	001
Anthracene	daily average	≤ .7 lb/d	all year	001
Anthracene	daily maximum	≤ 1.87 lb/d	all year	001
Benzo[k]fluoranthene	daily average	≤ .7 lb/d	all year	001
Benzo[k]fluoranthene	daily maximum	≤ 1.87 lb/d	all year	001
Benzo[a]pyrene	daily average	≤ .0041 lb/d	all year	001
Benzo[a]pyrene	daily maximum	≤ .0087 lb/d	all year	001
Chlorobenzene	daily average	≤ .48 lb/d	all year	001
Chlorobenzene	daily maximum	≤ .89 lb/d	all year	001
Chrysene	daily average	≤ .7 lb/d	all year	001
Chrysene	daily maximum	≤ 1.87 lb/d	all year	001
Diethyl phthalate	daily average	≤ 2.57 lb/d	all year	001
Diethyl phthalate	daily maximum	≤ 6.44 lb/d	all year	001
Dimethyl phthalate	daily average	≤ .6 lb/d	all year	001
Dimethyl phthalate	daily maximum	≤ 1.49 lb/d	all year	001
Ethylbenzene	daily average	≤ 1.01 lb/d	all year	001
Ethylbenzene	daily maximum	≤ 3.42 lb/d	all year	001
Fluoranthene	daily average	≤ .79 lb/d	all year	001
Fluoranthene	daily maximum	≤ 2.16 lb/d	all year	001
Fluorene	daily average	≤ .7 lb/d	all year	001
Fluorene	daily maximum	≤ 1.87 lb/d	all year	001
Hexachlorobutadiene	daily average	≤ .63 lb/d	all year	001
Hexachlorobutadiene	daily maximum	≤ 1.55 lb/d	all year	001
Hexachloroethane	daily average	≤ .67 lb/d	all year	001
Hexachloroethane	daily maximum	≤ 1.71 lb/d	all year	001
Methyl chloride [Chloromethane]	daily average	≤ 2.73 lb/d	all year	001
Methyl chloride [Chloromethane]	daily maximum	≤ 6.03 lb/d	all year	001
Methylene chloride	daily average	≤ 1.27 lb/d	all year	001
Methylene chloride	daily maximum	≤ 2.82 lb/d	all year	001
Nitrobenzene	daily average	≤ .86 lb/d	all year	001
Nitrobenzene	daily maximum	≤ 2.16 lb/d	all year	001
Phenanthrene	daily average	≤ .33 lb/d	all year	001
Phenanthrene	daily maximum	≤ .69 lb/d	all year	001
Pyrene	daily average	≤ .79 lb/d	all year	001
Pyrene	daily maximum	≤ 2.12 lb/d	all year	001
Tetrachloroethylene	daily average	≤ .7 lb/d	all year	001
Tetrachloroethylene	daily maximum	≤ 1.78 lb/d	all year	001
1,1-Dichloroethane	daily average	≤ .7 lb/d	all year	001
1,1-Dichloroethane	daily maximum	≤ 1.87 lb/d	all year	001
1,1-Dichloroethylene	daily average	≤ .51 lb/d	all year	001
1,1-Dichloroethylene	daily maximum	≤ .79 lb/d	all year	001
1,1,1-Trichloroethane	daily average	≤ .67 lb/d	all year	001
1,1,1-Trichloroethane	daily maximum	≤ 1.71 lb/d	all year	001
1,1,2-Trichloroethane	daily average	≤ .67 lb/d	all year	001
1,1,2-Trichloroethane	daily maximum	≤ 1.71 lb/d	all year	001
Benzo[a]anthracene	daily average	≤ .041 lb/d	all year	001
Benzo[a]anthracene	daily maximum	≤ .087 lb/d	all year	001
1,2-Dichlorobenzene	daily average	≤ 2.44 lb/d	all year	001
1,2-Dichlorobenzene	daily maximum	≤ 5.17 lb/d	all year	001
1,2-Dichloropropane	daily average	≤ 4.85 lb/d	all year	001
1,2-Dichloropropane	daily maximum	≤ 7.29 lb/d	all year	001
trans-1,2-Dichloroethylene	daily average	≤ .67 lb/d	all year	001
trans-1,2-Dichloroethylene	daily maximum	≤ 1.71 lb/d	all year	001
1,2,4-Trichlorobenzene	daily average	≤ 2.16 lb/d	all year	001
1,2,4-Trichlorobenzene	daily maximum	≤ 4.44 lb/d	all year	001
1,3-Dichlorobenzene	daily average	≤ .98 lb/d	all year	001
1,3-Dichlorobenzene	daily maximum	≤ 1.4 lb/d	all year	001
1,4-Dichlorobenzene	daily average	≤ .48 lb/d	all year	001
1,4-Dichlorobenzene	daily maximum	≤ .89 lb/d	all year	001
2-Chlorophenol	daily average	≤ .98 lb/d	all year	001
2-Chlorophenol	daily maximum	≤ 3.11 lb/d	all year	001
2-Nitrophenol	daily average	≤ 1.3 lb/d	all year	001
2-Nitrophenol	daily maximum	≤ 2.19 lb/d	all year	001
2,4-Dichlorophenol	daily average	≤ 1.24 lb/d	all year	001
2,4-Dichlorophenol	daily maximum	≤ 3.55 lb/d	all year	001
2,4-Dimethylphenol	daily average	≤ .57 lb/d	all year	001
2,4-Dimethylphenol	daily maximum	≤ 1.14 lb/d	all year	001
2,4-Dinitrotoluene	daily average	≤ 3.58 lb/d	all year	001
2,4-Dinitrotoluene	daily maximum	≤ 9.04 lb/d	all year	001
2,4-Dinitrophenol	daily average	≤ 2.25 lb/d	all year	001
2,4-Dinitrophenol	daily maximum	≤ 3.9 lb/d	all year	001
2,6-Dinitrotoluene	daily average	≤ 8.09 lb/d	all year	001
2,6-Dinitrotoluene	daily maximum	≤ 20.3 lb/d	all year	001
4-Nitrophenol	daily average	≤ 2.28 lb/d	all year	001
4-Nitrophenol	daily maximum	≤ 3.93 lb/d	all year	001
4,6-Dinitro-o-cresol	daily average	≤ 2.47 lb/d	all year	001
4,6-Dinitro-o-cresol	daily maximum	≤ 8.78 lb/d	all year	001
Phenol	daily average	≤ .48 lb/d	all year	001
Phenol	daily maximum	≤ .82 lb/d	all year	001
Naphthalene	daily average	≤ .7 lb/d	all year	001
Naphthalene	daily maximum	≤ 1.87 lb/d	all year	001
Di[2-ethylhexyl] phthalate [DEHP]	daily average	≤ 3.27 lb/d	all year	001
Di[2-ethylhexyl] phthalate [DEHP]	daily maximum	≤ 8.85 lb/d	all year	001
Di-n-butyl phthalate	daily average	≤ .86 lb/d	all year	001
Di-n-butyl phthalate	daily maximum	≤ 1.81 lb/d	all year	001
Vinyl chloride	daily average	≤ 3.3 lb/d	all year	001
Vinyl chloride	daily maximum	≤ 8.5 lb/d	all year	001
Trichloroethylene	daily average	≤ .67 lb/d	all year	001
Trichloroethylene	daily maximum	≤ 1.71 lb/d	all year	001
Hexachlorobenzene	daily average	≤ .0011 lb/d	all year	001
Hexachlorobenzene	daily maximum	≤ .0023 lb/d	all year	001
1,3-Dichloropropylene	daily average	≤ .92 lb/d	all year	001
1,3-Dichloropropylene	daily maximum	≤ 1.4 lb/d	all year	001
Flow [dry weather]	daily average	≤ 5.8 MGD	all year	001
Flow [dry weather]	daily maximum	report only (MGD)	all year	001
Enterococci	daily average	≤ 35 CFU/100mL	all year	001
Enterococci	daily maximum	≤ 104 CFU/100mL	all year	001
3,4-Benzofluoranthene	daily average	≤ .73 lb/d	all year	001
3,4-Benzofluoranthene	daily maximum	≤ 1.93 lb/d	all year	001
pH range excursions, > 60 minutes	monthly total	≤ 0 occur/mo	all year	001
pH range excursions, monthly total accum	monthly total	≤ 446 min	all year	001
Chloroethane	daily average	≤ 3.3 lb/d	all year	001
Chloroethane	daily maximum	≤ 8.5 lb/d	all year	001
Temperature, water deg. fahrenheit	daily maximum	≤ 100 deg F	all year	002
pH	minimum	≥ 5 SU	all year	002
pH	maximum	≤ 11 SU	all year	002
Carbon, tot organic [TOC]	daily maximum	≤ 50 mg/L	all year	002
Copper, total [as Cu]	daily average	≤ .0365 mg/L	all year	002
Copper, total [as Cu]	daily maximum	≤ .0773 mg/L	all year	002
Carbon tetrachloride	daily average	≤ .018 mg/L	all year	002
Carbon tetrachloride	daily maximum	≤ .038 mg/L	all year	002
1,2-Dichloroethane	daily average	≤ .068 mg/L	all year	002
1,2-Dichloroethane	daily maximum	≤ .211 mg/L	all year	002
Chloroform	daily average	≤ .021 mg/L	all year	002
Chloroform	daily maximum	≤ .046 mg/L	all year	002
Toluene	daily average	≤ .026 mg/L	all year	002
Toluene	daily maximum	≤ .08 mg/L	all year	002
Benzene	daily average	≤ .037 mg/L	all year	002
Benzene	daily maximum	≤ .136 mg/L	all year	002
Acenaphthylene	daily average	≤ .022 mg/L	all year	002
Acenaphthylene	daily maximum	≤ .059 mg/L	all year	002
Acenaphthene	daily average	≤ .022 mg/L	all year	002
Acenaphthene	daily maximum	≤ .059 mg/L	all year	002
Acrylonitrile	daily average	≤ .096 mg/L	all year	002
Acrylonitrile	daily maximum	≤ .242 mg/L	all year	002
Anthracene	daily average	≤ .022 mg/L	all year	002
Anthracene	daily maximum	≤ .059 mg/L	all year	002
Benzo[k]fluoranthene	daily average	≤ .022 mg/L	all year	002
Benzo[k]fluoranthene	daily maximum	≤ .059 mg/L	all year	002
Benzo[a]pyrene	daily average	≤ .023 mg/L	all year	002
Benzo[a]pyrene	daily maximum	≤ .061 mg/L	all year	002
Chlorobenzene	daily average	≤ .015 mg/L	all year	002
Chlorobenzene	daily maximum	≤ .028 mg/L	all year	002
Chrysene	daily average	≤ .022 mg/L	all year	002
Chrysene	daily maximum	≤ .059 mg/L	all year	002
Diethyl phthalate	daily average	≤ .081 mg/L	all year	002
Diethyl phthalate	daily maximum	≤ .203 mg/L	all year	002
Dimethyl phthalate	daily average	≤ .019 mg/L	all year	002
Dimethyl phthalate	daily maximum	≤ .047 mg/L	all year	002
Ethylbenzene	daily average	≤ .032 mg/L	all year	002
Ethylbenzene	daily maximum	≤ .108 mg/L	all year	002
Fluoranthene	daily average	≤ .025 mg/L	all year	002
Fluoranthene	daily maximum	≤ .068 mg/L	all year	002
Fluorene	daily average	≤ .022 mg/L	all year	002
Fluorene	daily maximum	≤ .059 mg/L	all year	002
Hexachlorobutadiene	daily average	≤ .02 mg/L	all year	002
Hexachlorobutadiene	daily maximum	≤ .049 mg/L	all year	002
Hexachloroethane	daily average	≤ .021 mg/L	all year	002
Hexachloroethane	daily maximum	≤ .054 mg/L	all year	002
Methyl chloride [Chloromethane]	daily average	≤ .086 mg/L	all year	002
Methyl chloride [Chloromethane]	daily maximum	≤ .19 mg/L	all year	002
Methylene chloride	daily average	≤ .04 mg/L	all year	002
Methylene chloride	daily maximum	≤ .089 mg/L	all year	002
Nitrobenzene	daily average	≤ .027 mg/L	all year	002
Nitrobenzene	daily maximum	≤ .068 mg/L	all year	002
Phenanthrene	daily average	≤ .022 mg/L	all year	002
Phenanthrene	daily maximum	≤ .059 mg/L	all year	002
Pyrene	daily average	≤ .015 mg/L	all year	002
Pyrene	daily maximum	≤ .067 mg/L	all year	002
Tetrachloroethylene	daily average	≤ .022 mg/L	all year	002
Tetrachloroethylene	daily maximum	≤ .056 mg/L	all year	002
1,1-Dichloroethane	daily average	≤ .022 mg/L	all year	002
1,1-Dichloroethane	daily maximum	≤ .059 mg/L	all year	002
1,1-Dichloroethylene	daily average	≤ .016 mg/L	all year	002
1,1-Dichloroethylene	daily maximum	≤ .025 mg/L	all year	002
1,1,1-Trichloroethane	daily average	≤ .021 mg/L	all year	002
1,1,1-Trichloroethane	daily maximum	≤ .054 mg/L	all year	002
1,1,2-Trichloroethane	daily average	≤ .021 mg/L	all year	002
1,1,2-Trichloroethane	daily maximum	≤ .054 mg/L	all year	002
Benzo[a]anthracene	daily average	≤ .022 mg/L	all year	002
Benzo[a]anthracene	daily maximum	≤ .059 mg/L	all year	002
1,2-Dichlorobenzene	daily average	≤ .077 mg/L	all year	002
1,2-Dichlorobenzene	daily maximum	≤ .163 mg/L	all year	002
1,2-Dichloropropane	daily average	≤ .153 mg/L	all year	002
1,2-Dichloropropane	daily maximum	≤ .23 mg/L	all year	002
trans-1,2-Dichloroethylene	daily average	≤ .021 mg/L	all year	002
trans-1,2-Dichloroethylene	daily maximum	≤ .054 mg/L	all year	002
1,2,4-Trichlorobenzene	daily average	≤ .068 mg/L	all year	002
1,2,4-Trichlorobenzene	daily maximum	≤ .14 mg/L	all year	002
1,3-Dichlorobenzene	daily average	≤ .031 mg/L	all year	002
1,3-Dichlorobenzene	daily maximum	≤ .044 mg/L	all year	002
1,4-Dichlorobenzene	daily average	≤ .015 mg/L	all year	002
1,4-Dichlorobenzene	daily maximum	≤ .028 mg/L	all year	002
2-Chlorophenol	daily average	≤ .031 mg/L	all year	002
2-Chlorophenol	daily maximum	≤ .098 mg/L	all year	002
2-Nitrophenol	daily average	≤ .041 mg/L	all year	002
2-Nitrophenol	daily maximum	≤ .069 mg/L	all year	002
2,4-Dichlorophenol	daily average	≤ .039 mg/L	all year	002
2,4-Dichlorophenol	daily maximum	≤ .112 mg/L	all year	002
2,4-Dimethylphenol	daily average	≤ .018 mg/L	all year	002
2,4-Dimethylphenol	daily maximum	≤ .036 mg/L	all year	002
2,4-Dinitrotoluene	daily average	≤ .113 mg/L	all year	002
2,4-Dinitrotoluene	daily maximum	≤ .285 mg/L	all year	002
2,4-Dinitrophenol	daily average	≤ .071 mg/L	all year	002
2,4-Dinitrophenol	daily maximum	≤ .123 mg/L	all year	002
2,6-Dinitrotoluene	daily average	≤ .255 mg/L	all year	002
2,6-Dinitrotoluene	daily maximum	≤ .641 mg/L	all year	002
4-Nitrophenol	daily average	≤ .072 mg/L	all year	002
4-Nitrophenol	daily maximum	≤ .124 mg/L	all year	002
4,6-Dinitro-o-cresol	daily average	≤ .078 mg/L	all year	002
4,6-Dinitro-o-cresol	daily maximum	≤ .277 mg/L	all year	002
Phenol	daily average	≤ .015 mg/L	all year	002
Phenol	daily maximum	≤ .026 mg/L	all year	002
Naphthalene	daily average	≤ .022 mg/L	all year	002
Naphthalene	daily maximum	≤ .059 mg/L	all year	002
Di[2-ethylhexyl] phthalate [DEHP]	daily average	≤ .103 mg/L	all year	002
Di[2-ethylhexyl] phthalate [DEHP]	daily maximum	≤ .279 mg/L	all year	002
Di-n-butyl phthalate	daily average	≤ .027 mg/L	all year	002
Di-n-butyl phthalate	daily maximum	≤ .057 mg/L	all year	002
Vinyl chloride	daily average	≤ .104 mg/L	all year	002
Vinyl chloride	daily maximum	≤ .268 mg/L	all year	002
Trichloroethylene	daily average	≤ .021 mg/L	all year	002
Trichloroethylene	daily maximum	≤ .054 mg/L	all year	002
Hexachlorobenzene	daily average	≤ .015 mg/L	all year	002
Hexachlorobenzene	daily maximum	≤ .028 mg/L	all year	002
Chlorine, total residual	daily maximum	≤ .2 mg/L	all year	002
1,3-Dichloropropylene	daily average	≤ .029 mg/L	all year	002
1,3-Dichloropropylene	daily maximum	≤ .044 mg/L	all year	002
Flow [dry weather]	daily average	≤ 12 MGD	all year	002
Flow [dry weather]	daily maximum	≤ 17 MGD	all year	002
3,4-Benzofluoranthene	daily average	≤ .023 mg/L	all year	002
3,4-Benzofluoranthene	daily maximum	≤ .061 mg/L	all year	002
pH range excursions, > 60 minutes	monthly total	≤ 0 occur/mo	all year	002
pH range excursions, monthly total accum	monthly total	≤ 446 min	all year	002
Chloroethane	daily average	≤ .104 mg/L	all year	002
Chloroethane	daily maximum	≤ .268 mg/L	all year	002
pH	minimum	≥ 6 SU	all year	003
pH	maximum	≤ 9 SU	all year	003
Oil & Grease	daily maximum	≤ 15 mg/L	all year	003
Carbon, tot organic [TOC]	daily maximum	≤ 75 mg/L	all year	003
Flow, in conduit or thru treatment plant	daily average	report only (MGD)	all year	003
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	003
pH	minimum	≥ 6 SU	all year	004
pH	maximum	≤ 9 SU	all year	004
Oil & Grease	daily maximum	≤ 15 mg/L	all year	004
Carbon, tot organic [TOC]	daily maximum	≤ 75 mg/L	all year	004
Flow, in conduit or thru treatment plant	daily average	report only (MGD)	all year	004
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	004
pH	minimum	≥ 6 SU	all year	005
pH	maximum	≤ 9 SU	all year	005
Oil & Grease	daily maximum	≤ 15 mg/L	all year	005
Carbon, tot organic [TOC]	daily maximum	≤ 75 mg/L	all year	005
Flow, in conduit or thru treatment plant	daily average	report only (MGD)	all year	005
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	005
pH	minimum	≥ 6 SU	all year	006
pH	maximum	≤ 9 SU	all year	006
Oil & Grease	daily maximum	≤ 15 mg/L	all year	006
Carbon, tot organic [TOC]	daily maximum	≤ 75 mg/L	all year	006
Flow, in conduit or thru treatment plant	daily average	report only (MGD)	all year	006
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	006
pH	minimum	≥ 6 SU	all year	007
pH	maximum	≤ 9 SU	all year	007
Oil & Grease	daily maximum	≤ 15 mg/L	all year	007
Carbon, tot organic [TOC]	daily maximum	≤ 75 mg/L	all year	007
Flow, in conduit or thru treatment plant	daily average	report only (MGD)	all year	007
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	007
pH	minimum	≥ 6 SU	all year	008
pH	maximum	≤ 9 SU	all year	008
Oil & Grease	daily maximum	≤ 15 mg/L	all year	008
Carbon, tot organic [TOC]	daily maximum	≤ 75 mg/L	all year	008
Flow, in conduit or thru treatment plant	daily average	report only (MGD)	all year	008
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	008
pH	minimum	≥ 6 SU	all year	009
pH	maximum	≤ 9 SU	all year	009
Oil & Grease	daily maximum	≤ 15 mg/L	all year	009
Carbon, tot organic [TOC]	daily maximum	≤ 75 mg/L	all year	009
Flow, in conduit or thru treatment plant	daily average	report only (MGD)	all year	009
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	009
pH	minimum	≥ 6 SU	all year	010
pH	maximum	≤ 9 SU	all year	010
Oil & Grease	daily maximum	≤ 15 mg/L	all year	010
Carbon, tot organic [TOC]	daily maximum	≤ 75 mg/L	all year	010
Flow, in conduit or thru treatment plant	daily average	report only (MGD)	all year	010
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	010
pH	minimum	≥ 6 SU	all year	012
pH	maximum	≤ 9 SU	all year	012
Oil & Grease	daily maximum	≤ 15 mg/L	all year	012
Carbon, tot organic [TOC]	daily maximum	≤ 75 mg/L	all year	012
Flow, in conduit or thru treatment plant	daily average	report only (MGD)	all year	012
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	012
pH	minimum	≥ 6 SU	all year	014
pH	maximum	≤ 9 SU	all year	014
Oil & Grease	daily maximum	≤ 15 mg/L	all year	014
Carbon, tot organic [TOC]	daily maximum	≤ 75 mg/L	all year	014
Flow, in conduit or thru treatment plant	daily average	report only (MGD)	all year	014
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	014
pH	minimum	≥ 6 SU	all year	015
pH	maximum	≤ 9 SU	all year	015
Oil & Grease	daily maximum	≤ 15 mg/L	all year	015
Carbon, tot organic [TOC]	daily maximum	≤ 75 mg/L	all year	015
Flow, in conduit or thru treatment plant	daily average	report only (MGD)	all year	015
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	015
pH	minimum	≥ 6 SU	all year	016
pH	maximum	≤ 9 SU	all year	016
Oil & Grease	daily maximum	≤ 15 mg/L	all year	016
Carbon, tot organic [TOC]	daily maximum	≤ 75 mg/L	all year	016
Flow, in conduit or thru treatment plant	daily average	report only (MGD)	all year	016
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	016
Whole effluent toxicity - retest #1	7-day minimum	report only (pass=0;fail=1)	all year	TX1
Whole effluent toxicity - retest #1	monthly average minimum	report only (pass=0;fail=1)	all year	TX1
Whole effluent toxicity - retest #2	7-day minimum	report only (pass=0;fail=1)	all year	TX1
Whole effluent toxicity - retest #2	monthly average minimum	report only (pass=0;fail=1)	all year	TX1
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)	7-day minimum	report only (pass=0;fail=1)	all year	TX1
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)	monthly average minimum	report only (pass=0;fail=1)	all year	TX1
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia menidia	7-day minimum	report only (pass=0;fail=1)	all year	TX1
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia menidia	monthly average minimum	report only (pass=0;fail=1)	all year	TX1
NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)	7-day minimum	report only (%)	all year	TX1
NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)	monthly average minimum	report only (%)	all year	TX1
NOEC Lethal Static Renewal 7 Day Chronic Menidia menidia	7-day minimum	report only (%)	all year	TX1
NOEC Lethal Static Renewal 7 Day Chronic Menidia menidia	monthly average minimum	report only (%)	all year	TX1
NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)	7-day minimum	report only (%)	all year	TX1
NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)	monthly average minimum	report only (%)	all year	TX1
NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia	7-day minimum	report only (%)	all year	TX1
NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia	monthly average minimum	report only (%)	all year	TX1
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)	7-day minimum	report only (pass=0;fail=1)	all year	TX1
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)	monthly average minimum	report only (pass=0;fail=1)	all year	TX1
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia	7-day minimum	report only (pass=0;fail=1)	all year	TX1
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia	monthly average minimum	report only (pass=0;fail=1)	all year	TX1
LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)	7-day minimum	report only (%)	all year	TX1
LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)	monthly average minimum	report only (%)	all year	TX1
LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia menidia	7-day minimum	report only (%)	all year	TX1
LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia menidia	monthly average minimum	report only (%)	all year	TX1
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)	7-day minimum	report only (%)	all year	TX1
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)	monthly average minimum	report only (%)	all year	TX1
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Menidia menidia	7-day minimum	report only (%)	all year	TX1
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Menidia menidia	monthly average minimum	report only (%)	all year	TX1
Whole effluent toxicity - retest #1	single sample	report only (pass=0;fail=1)	all year	TXA
Whole effluent toxicity - retest #2	single sample	report only (pass=0;fail=1)	all year	TXA
LC50 Pass/Fail Static 24Hr Acute Americamysis bahia (formerly Mysidopsis bahia)	single sample	report only (pass=0;fail=1)	all year	TXA
LC50 Pass/Fail Static 24Hr Acute Menidia menidia	single sample	report only (pass=0;fail=1)	all year	TXA
Whole effluent toxicity - retest #1	single sample	report only (pass=0;fail=1)	all year	TXB
Whole effluent toxicity - retest #2	single sample	report only (pass=0;fail=1)	all year	TXB
LC50 Pass/Fail Static 24Hr Acute Americamysis bahia (formerly Mysidopsis bahia)	single sample	report only (pass=0;fail=1)	all year	TXB
LC50 Pass/Fail Static 24Hr Acute Menidia menidia	single sample	report only (pass=0;fail=1)	all year	TXB

How strict are these limits?

Your permit document is the final word. As JSON: /api/v1/permits/TX0002844 · MCP: https://passage-data.com/mcp