Chevron Phillips Chemical Company LP — NPDES permit TX0135917: limits, due date and EPA's record

Plastics Materials And Resins, major discharger, Sweeny, Texas. NPDES permit TX0135917 expired Jun 29, 2026; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Limits in force (305)

Parameter	Statistic	Limit	Months	Outfall
Oxygen, dissolved [DO]	monthly minimum	≥ 3 mg/L	all year	001
BOD, 5-day, 20 deg. C	daily average	≤ 18 mg/L	all year	001
BOD, 5-day, 20 deg. C	daily maximum	≤ 40 mg/L	all year	001
pH	minimum	≥ 5 SU	all year	001
pH	maximum	≤ 11 SU	all year	001
Zinc, total [as Zn]	daily average	≤ .188 mg/L	all year	001
Zinc, total [as Zn]	daily maximum	≤ .399 mg/L	all year	001
Benzo[a]pyrene	daily average	≤ .00004 mg/L	all year	001
Benzo[a]pyrene	daily maximum	≤ .000086 mg/L	all year	001
Benzo[a]pyrene	daily average	≤ .000094 lb/d	all year	001
Benzo[a]pyrene	daily maximum	≤ .0002 lb/d	all year	001
Hexachlorobutadiene	daily average	≤ .0036 mg/L	all year	001
Hexachlorobutadiene	daily maximum	≤ .0075 mg/L	all year	001
Hexachlorobutadiene	daily average	≤ .0085 lb/d	all year	001
Hexachlorobutadiene	daily maximum	≤ .02 lb/d	all year	001
Hexachloroethane	daily average	≤ .038 mg/L	all year	001
Hexachloroethane	daily maximum	≤ .08 mg/L	all year	001
Hexachloroethane	daily average	≤ .089 lb/d	all year	001
Hexachloroethane	daily maximum	≤ .19 lb/d	all year	001
Phenanthrene	daily average	≤ .0253 mg/L	all year	001
Phenanthrene	daily maximum	≤ .0535 mg/L	all year	001
Phenanthrene	daily average	≤ .06 lb/d	all year	001
Phenanthrene	daily maximum	≤ .13 lb/d	all year	001
Benzo[a]anthracene	daily average	≤ .0004 mg/L	all year	001
Benzo[a]anthracene	daily maximum	≤ .00086 mg/L	all year	001
Benzo[a]anthracene	daily average	≤ .00094 lb/d	all year	001
Benzo[a]anthracene	daily maximum	≤ .002 lb/d	all year	001
Hexachlorobenzene	daily average	≤ .000011 mg/L	all year	001
Hexachlorobenzene	daily maximum	≤ .000023 mg/L	all year	001
Hexachlorobenzene	daily average	≤ .000026 lb/d	all year	001
Hexachlorobenzene	daily maximum	≤ .000054 lb/d	all year	001
Flow, in conduit or thru treatment plant	daily average	report only (MGD)	all year	001
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	001
Chlorine, free available	daily average	≤ .2 mg/L	all year	001
Chlorine, free available	daily maximum	≤ .5 mg/L	all year	001
pH	minimum	≥ 5 SU	all year	002
pH	maximum	≤ 11 SU	all year	002
Zinc, total [as Zn]	daily average	≤ .245 mg/L	all year	002
Zinc, total [as Zn]	daily maximum	≤ .52 mg/L	all year	002
Carbon tetrachloride	daily average	≤ .142 mg/L	all year	002
Carbon tetrachloride	daily maximum	≤ .38 mg/L	all year	002
1,2-Dichloroethane	daily average	≤ .18 mg/L	all year	002
1,2-Dichloroethane	daily maximum	≤ .574 mg/L	all year	002
Chloroform	daily average	≤ .111 mg/L	all year	002
Chloroform	daily maximum	≤ .325 mg/L	all year	002
Toluene	daily average	≤ .028 mg/L	all year	002
Toluene	daily maximum	≤ .074 mg/L	all year	002
Benzene	daily average	≤ .057 mg/L	all year	002
Benzene	daily maximum	≤ .134 mg/L	all year	002
Acenaphthylene	daily average	≤ .019 mg/L	all year	002
Acenaphthylene	daily maximum	≤ .047 mg/L	all year	002
Acenaphthene	daily average	≤ .019 mg/L	all year	002
Acenaphthene	daily maximum	≤ .047 mg/L	all year	002
Acrylonitrile	daily average	≤ .094 mg/L	all year	002
Acrylonitrile	daily maximum	≤ .232 mg/L	all year	002
Anthracene	daily average	≤ .019 mg/L	all year	002
Anthracene	daily maximum	≤ .047 mg/L	all year	002
Benzo[k]fluoranthene	daily average	≤ .19 mg/L	all year	002
Benzo[k]fluoranthene	daily maximum	≤ .047 mg/L	all year	002
Benzo[a]pyrene	daily average	≤ .000085 mg/L	all year	002
Benzo[a]pyrene	daily maximum	≤ .000181 mg/L	all year	002
Chlorobenzene	daily average	≤ .142 mg/L	all year	002
Chlorobenzene	daily maximum	≤ .38 mg/L	all year	002
Chrysene	daily average	≤ .019 mg/L	all year	002
Chrysene	daily maximum	≤ .047 mg/L	all year	002
Diethyl phthalate	daily average	≤ .046 mg/L	all year	002
Diethyl phthalate	daily maximum	≤ .113 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	≤ .142 mg/L	all year	002
Ethylbenzene	daily maximum	≤ .38 mg/L	all year	002
Fluoranthene	daily average	≤ .022 mg/L	all year	002
Fluoranthene	daily maximum	≤ .054 mg/L	all year	002
Fluorene	daily average	≤ .019 mg/L	all year	002
Fluorene	daily maximum	≤ .047 mg/L	all year	002
Hexachlorobutadiene	daily average	≤ .00752 mg/L	all year	002
Hexachlorobutadiene	daily maximum	≤ .0159 mg/L	all year	002
Hexachloroethane	daily average	≤ .0796 mg/L	all year	002
Hexachloroethane	daily maximum	≤ .168 mg/L	all year	002
Methyl chloride [Chloromethane]	daily average	≤ .11 mg/L	all year	002
Methyl chloride [Chloromethane]	daily maximum	≤ .295 mg/L	all year	002
Methylene chloride	daily average	≤ .036 mg/L	all year	002
Methylene chloride	daily maximum	≤ .17 mg/L	all year	002
Nitrobenzene	daily average	≤ 2.237 mg/L	all year	002
Nitrobenzene	daily maximum	≤ 6.402 mg/L	all year	002
Phenanthrene	daily average	≤ .0121 mg/L	all year	002
Phenanthrene	daily maximum	≤ .0255 mg/L	all year	002
Pyrene	daily average	≤ .02 mg/L	all year	002
Pyrene	daily maximum	≤ .048 mg/L	all year	002
Tetrachloroethylene	daily average	≤ .052 mg/L	all year	002
Tetrachloroethylene	daily maximum	≤ .164 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	≤ .022 mg/L	all year	002
1,1-Dichloroethylene	daily maximum	≤ .06 mg/L	all year	002
1,1,1-Trichloroethane	daily average	≤ .022 mg/L	all year	002
1,1,1-Trichloroethane	daily maximum	≤ .059 mg/L	all year	002
1,1,2-Trichloroethane	daily average	≤ .032 mg/L	all year	002
1,1,2-Trichloroethane	daily maximum	≤ .127 mg/L	all year	002
Benzo[a]anthracene	daily average	≤ .000854 mg/L	all year	002
Benzo[a]anthracene	daily maximum	≤ .00181 mg/L	all year	002
1,2-Dichlorobenzene	daily average	≤ .196 mg/L	all year	002
1,2-Dichlorobenzene	daily maximum	≤ .794 mg/L	all year	002
1,2-Dichloropropane	daily average	≤ .196 mg/L	all year	002
1,2-Dichloropropane	daily maximum	≤ .794 mg/L	all year	002
trans-1,2-Dichloroethylene	daily average	≤ .025 mg/L	all year	002
trans-1,2-Dichloroethylene	daily maximum	≤ .066 mg/L	all year	002
1,2,4-Trichlorobenzene	daily average	≤ .196 mg/L	all year	002
1,2,4-Trichlorobenzene	daily maximum	≤ .794 mg/L	all year	002
1,3-Dichlorobenzene	daily average	≤ .142 mg/L	all year	002
1,3-Dichlorobenzene	daily maximum	≤ .38 mg/L	all year	002
1,4-Dichlorobenzene	daily average	≤ .142 mg/L	all year	002
1,4-Dichlorobenzene	daily maximum	≤ .38 mg/L	all year	002
2-Nitrophenol	daily average	≤ .065 mg/L	all year	002
2-Nitrophenol	daily maximum	≤ .231 mg/L	all year	002
2,4-Dimethylphenol	daily average	≤ .019 mg/L	all year	002
2,4-Dimethylphenol	daily maximum	≤ .047 mg/L	all year	002
2,4-Dinitrophenol	daily average	≤ 1.207 mg/L	all year	002
2,4-Dinitrophenol	daily maximum	≤ 4.291 mg/L	all year	002
4-Nitrophenol	daily average	≤ .162 mg/L	all year	002
4-Nitrophenol	daily maximum	≤ .576 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	≤ .019 mg/L	all year	002
Phenol	daily maximum	≤ .047 mg/L	all year	002
Naphthalene	daily average	≤ .019 mg/L	all year	002
Naphthalene	daily maximum	≤ .047 mg/L	all year	002
Di[2-ethylhexyl] phthalate [DEHP]	daily average	≤ .000085 mg/L	all year	002
Di[2-ethylhexyl] phthalate [DEHP]	daily maximum	≤ .000181 mg/L	all year	002
Di-n-butyl phthalate	daily average	≤ .02 mg/L	all year	002
Di-n-butyl phthalate	daily maximum	≤ .043 mg/L	all year	002
Vinyl chloride	daily average	≤ .097 mg/L	all year	002
Vinyl chloride	daily maximum	≤ .172 mg/L	all year	002
Trichloroethylene	daily average	≤ .026 mg/L	all year	002
Trichloroethylene	daily maximum	≤ .069 mg/L	all year	002
Hexachlorobenzene	daily average	≤ .000023 mg/L	all year	002
Hexachlorobenzene	daily maximum	≤ .000049 mg/L	all year	002
Flow, in conduit or thru treatment plant	daily average	≤ .62 MGD	all year	002
Flow, in conduit or thru treatment plant	daily maximum	≤ 1.2 MGD	all year	002
Chlorine, free available	daily average	≤ .2 mg/L	all year	002
Chlorine, free available	daily maximum	≤ .5 mg/L	all year	002
1,3-Dichloropropylene	daily average	≤ .196 mg/L	all year	002
1,3-Dichloropropylene	daily maximum	≤ .794 mg/L	all year	002
3,4-Benzofluoranthene	daily average	≤ .02 mg/L	all year	002
3,4-Benzofluoranthene	daily maximum	≤ .048 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	≤ .11 mg/L	all year	002
Chloroethane	daily maximum	≤ .295 mg/L	all year	002
Oxygen demand, chem. [high level] [COD]	daily maximum	≤ 150 mg/L	all year	003
pH	minimum	≥ 6 SU	all year	003
pH	maximum	≤ 9 SU	all year	003
Oil & Grease	daily maximum	≤ 15 mg/L	all year	003
Zinc, total [as Zn]	daily average	≤ .188 mg/L	all year	003
Zinc, total [as Zn]	daily maximum	≤ .399 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
Chlorine, free available	daily average	≤ .2 mg/L	all year	003
Chlorine, free available	daily maximum	≤ .5 mg/L	all year	003
BOD, 5-day, 20 deg. C	daily average	≤ 86.5 lb/d	all year	101
BOD, 5-day, 20 deg. C	daily maximum	≤ 231 lb/d	all year	101
pH	minimum	≥ 5 SU	all year	101
pH	maximum	≤ 11 SU	all year	101
Solids, total suspended	daily average	≤ 144 lb/d	all year	101
Solids, total suspended	daily maximum	≤ 469 lb/d	all year	101
Carbon tetrachloride	daily average	≤ .512 lb/d	all year	101
Carbon tetrachloride	daily maximum	≤ 1.37 lb/d	all year	101
1,2-Dichloroethane	daily average	≤ .649 lb/d	all year	101
1,2-Dichloroethane	daily maximum	≤ 2.069 lb/d	all year	101
Chloroform	daily average	≤ .4 lb/d	all year	101
Chloroform	daily maximum	≤ 1.172 lb/d	all year	101
Toluene	daily average	≤ .101 lb/d	all year	101
Toluene	daily maximum	≤ .267 lb/d	all year	101
Benzene	daily average	≤ .205 lb/d	all year	101
Benzene	daily maximum	≤ .483 lb/d	all year	101
Acenaphthylene	daily average	≤ .068 lb/d	all year	101
Acenaphthylene	daily maximum	≤ .169 lb/d	all year	101
Acenaphthene	daily average	≤ .068 lb/d	all year	101
Acenaphthene	daily maximum	≤ .169 lb/d	all year	101
Acrylonitrile	daily average	≤ .339 lb/d	all year	101
Acrylonitrile	daily maximum	≤ .836 lb/d	all year	101
Anthracene	daily average	≤ .068 lb/d	all year	101
Anthracene	daily maximum	≤ .169 lb/d	all year	101
Benzo[k]fluoranthene	daily average	≤ .068 lb/d	all year	101
Benzo[k]fluoranthene	daily maximum	≤ .169 lb/d	all year	101
Benzo[a]pyrene	daily average	≤ .072 lb/d	all year	101
Benzo[a]pyrene	daily maximum	≤ .173 lb/d	all year	101
Chlorobenzene	daily average	≤ .512 lb/d	all year	101
Chlorobenzene	daily maximum	≤ 1.37 lb/d	all year	101
Chrysene	daily average	≤ .068 lb/d	all year	101
Chrysene	daily maximum	≤ .169 lb/d	all year	101
Diethyl phthalate	daily average	≤ .166 lb/d	all year	101
Diethyl phthalate	daily maximum	≤ .407 lb/d	all year	101
Dimethyl phthalate	daily average	≤ .068 lb/d	all year	101
Dimethyl phthalate	daily maximum	≤ .169 lb/d	all year	101
Ethylbenzene	daily average	≤ .512 lb/d	all year	101
Ethylbenzene	daily maximum	≤ 1.37 lb/d	all year	101
Fluoranthene	daily average	≤ .079 lb/d	all year	101
Fluoranthene	daily maximum	≤ .195 lb/d	all year	101
Fluorene	daily average	≤ .068 lb/d	all year	101
Fluorene	daily maximum	≤ .169 lb/d	all year	101
Hexachlorobutadiene	daily average	≤ .512 lb/d	all year	101
Hexachlorobutadiene	daily maximum	≤ 1.37 lb/d	all year	101
Hexachloroethane	daily average	≤ .707 lb/d	all year	101
Hexachloroethane	daily maximum	≤ 2.862 lb/d	all year	101
Methyl chloride [Chloromethane]	daily average	≤ .397 lb/d	all year	101
Methyl chloride [Chloromethane]	daily maximum	≤ 1.063 lb/d	all year	101
Methylene chloride	daily average	≤ .13 lb/d	all year	101
Methylene chloride	daily maximum	≤ .613 lb/d	all year	101
Nitrobenzene	daily average	≤ 8.064 lb/d	all year	101
Nitrobenzene	daily maximum	≤ 23.079 lb/d	all year	101
Phenanthrene	daily average	≤ .068 lb/d	all year	101
Phenanthrene	daily maximum	≤ .169 lb/d	all year	101
Pyrene	daily average	≤ .072 lb/d	all year	101
Pyrene	daily maximum	≤ .173 lb/d	all year	101
Tetrachloroethylene	daily average	≤ .187 lb/d	all year	101
Tetrachloroethylene	daily maximum	≤ .591 lb/d	all year	101
1,1-Dichloroethane	daily average	≤ .079 lb/d	all year	101
1,1-Dichloroethane	daily maximum	≤ .213 lb/d	all year	101
1,1-Dichloroethylene	daily average	≤ .079 lb/d	all year	101
1,1-Dichloroethylene	daily maximum	≤ .216 lb/d	all year	101
1,1,1-Trichloroethane	daily average	≤ .079 lb/d	all year	101
1,1,1-Trichloroethane	daily maximum	≤ .213 lb/d	all year	101
1,1,2-Trichloroethane	daily average	≤ .115 lb/d	all year	101
1,1,2-Trichloroethane	daily maximum	≤ .458 lb/d	all year	101
Benzo[a]anthracene	daily average	≤ .068 lb/d	all year	101
Benzo[a]anthracene	daily maximum	≤ .169 lb/d	all year	101
1,2-Dichlorobenzene	daily average	≤ .707 lb/d	all year	101
1,2-Dichlorobenzene	daily maximum	≤ 2.862 lb/d	all year	101
1,2-Dichloropropane	daily average	≤ .707 lb/d	all year	101
1,2-Dichloropropane	daily maximum	≤ 2.862 lb/d	all year	101
trans-1,2-Dichloroethylene	daily average	≤ .09 lb/d	all year	101
trans-1,2-Dichloroethylene	daily maximum	≤ .238 lb/d	all year	101
1,2,4-Trichlorobenzene	daily average	≤ .707 lb/d	all year	101
1,2,4-Trichlorobenzene	daily maximum	≤ 2.862 lb/d	all year	101
1,3-Dichlorobenzene	daily average	≤ .512 lb/d	all year	101
1,3-Dichlorobenzene	daily maximum	≤ 1.37 lb/d	all year	101
1,4-Dichlorobenzene	daily average	≤ .512 lb/d	all year	101
1,4-Dichlorobenzene	daily maximum	≤ 1.37 lb/d	all year	101
2-Nitrophenol	daily average	≤ .234 lb/d	all year	101
2-Nitrophenol	daily maximum	≤ .833 lb/d	all year	101
2,4-Dimethylphenol	daily average	≤ .068 lb/d	all year	101
2,4-Dimethylphenol	daily maximum	≤ .169 lb/d	all year	101
2,4-Dinitrophenol	daily average	≤ 4.351 lb/d	all year	101
2,4-Dinitrophenol	daily maximum	≤ 15.469 lb/d	all year	101
4-Nitrophenol	daily average	≤ .584 lb/d	all year	101
4-Nitrophenol	daily maximum	≤ 2.077 lb/d	all year	101
4,6-Dinitro-o-cresol	daily average	≤ .281 lb/d	all year	101
4,6-Dinitro-o-cresol	daily maximum	≤ .999 lb/d	all year	101
Phenol	daily average	≤ .068 lb/d	all year	101
Phenol	daily maximum	≤ .169 lb/d	all year	101
Naphthalene	daily average	≤ .068 lb/d	all year	101
Naphthalene	daily maximum	≤ .169 lb/d	all year	101
Di[2-ethylhexyl] phthalate [DEHP]	daily average	≤ .342 lb/d	all year	101
Di[2-ethylhexyl] phthalate [DEHP]	daily maximum	≤ .93 lb/d	all year	101
Di-n-butyl phthalate	daily average	≤ .072 lb/d	all year	101
Di-n-butyl phthalate	daily maximum	≤ .155 lb/d	all year	101
Vinyl chloride	daily average	≤ .35 lb/d	all year	101
Vinyl chloride	daily maximum	≤ .62 lb/d	all year	101
Trichloroethylene	daily average	≤ .094 lb/d	all year	101
Trichloroethylene	daily maximum	≤ .249 lb/d	all year	101
Hexachlorobenzene	daily average	≤ .707 lb/d	all year	101
Hexachlorobenzene	daily maximum	≤ 2.862 lb/d	all year	101
Flow, in conduit or thru treatment plant	daily average	≤ .54 MGD	all year	101
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	101
1,3-Dichloropropylene	daily average	≤ .707 lb/d	all year	101
1,3-Dichloropropylene	daily maximum	≤ 2.862 lb/d	all year	101
3,4-Benzofluoranthene	daily average	≤ .072 lb/d	all year	101
3,4-Benzofluoranthene	daily maximum	≤ .173 lb/d	all year	101
pH range excursions, > 60 minutes	monthly total	≤ 0 occur/mo	all year	101
pH range excursions, monthly total accum	monthly total	≤ 446 min	all year	101
Chloroethane	daily average	≤ .397 lb/d	all year	101
Chloroethane	daily maximum	≤ 1.063 lb/d	all year	101
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 Ceriodaphnia dubia	7-day minimum	report only (pass=0;fail=1)	all year	TX1
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia	monthly average minimum	report only (pass=0;fail=1)	all year	TX1
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas	7-day minimum	report only (pass=0;fail=1)	all year	TX1
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas	monthly average minimum	report only (pass=0;fail=1)	all year	TX1
NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia	7-day minimum	report only (%)	all year	TX1
NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia	monthly average minimum	report only (%)	all year	TX1
NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas	7-day minimum	report only (%)	all year	TX1
NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas	monthly average minimum	report only (%)	all year	TX1
NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia	7-day minimum	report only (%)	all year	TX1
NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia	monthly average minimum	report only (%)	all year	TX1
NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas	7-day minimum	report only (%)	all year	TX1
NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas	monthly average minimum	report only (%)	all year	TX1
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia	7-day minimum	report only (pass=0;fail=1)	all year	TX1
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia	monthly average minimum	report only (pass=0;fail=1)	all year	TX1
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelas	7-day minimum	report only (pass=0;fail=1)	all year	TX1
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelas	monthly average minimum	report only (pass=0;fail=1)	all year	TX1
LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia	7-day minimum	report only (%)	all year	TX1
LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia	monthly average minimum	report only (%)	all year	TX1
LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas	7-day minimum	report only (%)	all year	TX1
LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas	monthly average minimum	report only (%)	all year	TX1
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia	7-day minimum	report only (%)	all year	TX1
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia	monthly average minimum	report only (%)	all year	TX1
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas	7-day minimum	report only (%)	all year	TX1
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas	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 D. Pulex	single sample	report only (pass=0;fail=1)	all year	TXA
LC50 Pass/Fail Static 24Hr Acute Pimephales promelas	single sample	report only (pass=0;fail=1)	all year	TXA

How strict are these limits?

Your permit document is the final word. As JSON: /api/v1/permits/TX0135917 · MCP: https://passage-data.com/mcp