Pilot Industries of Texas Inc — NPDES permit TX0060933: limits, due date and EPA's record

Cyclic Crudes And Intermediates, Houston, Texas. NPDES permit TX0060933, in force until Feb 13, 2030. Last 12 months: no values over a limit, 34 required values missing, 7 of 21 reports late. Source: EPA ECHO, Oct 22, 2026.

Limits in force (274)

Parameter	Statistic	Limit	Months	Outfall
Temperature, water deg. fahrenheit	daily average	≤ 95 deg F	all year	001
Temperature, water deg. fahrenheit	daily maximum	≤ 105 deg F	all year	001
BOD, 5-day, 20 deg. C	daily average	≤ 2.7 lb/d	all year	001
BOD, 5-day, 20 deg. C	daily maximum	≤ 4.8 lb/d	all year	001
Oxygen demand, chem. [high level] [COD]	daily average	≤ 23.3 lb/d	all year	001
Oxygen demand, chem. [high level] [COD]	daily maximum	≤ 35 lb/d	all year	001
pH	minimum	≥ 6 SU	all year	001
pH	maximum	≤ 9 SU	all year	001
Solids, total suspended	daily average	≤ 4.3 lb/d	all year	001
Solids, total suspended	daily maximum	≤ 7.2 lb/d	all year	001
Oil & Grease	daily average	≤ 1.2 lb/d	all year	001
Oil & Grease	daily maximum	≤ 1.8 lb/d	all year	001
Sulfate, total [as SO4]	daily average	report only (mg/L)	all year	001
Sulfate, total [as SO4]	daily maximum	report only (mg/L)	all year	001
Chromium, total [as Cr]	daily average	≤ .5 mg/L	all year	001
Chromium, total [as Cr]	daily maximum	≤ 1 mg/L	all year	001
Chromium, total [as Cr]	daily average	≤ .12 lb/d	all year	001
Chromium, total [as Cr]	daily maximum	≤ .23 lb/d	all year	001
Copper, total [as Cu]	daily average	≤ .015 mg/L	all year	001
Copper, total [as Cu]	daily maximum	≤ .031 mg/L	all year	001
Copper, total [as Cu]	daily average	≤ .003 lb/d	all year	001
Copper, total [as Cu]	daily maximum	≤ .007 lb/d	all year	001
Lead, total [as Pb]	daily average	≤ .108 mg/L	all year	001
Lead, total [as Pb]	daily maximum	≤ .229 mg/L	all year	001
Lead, total [as Pb]	daily average	≤ .025 lb/d	all year	001
Lead, total [as Pb]	daily maximum	≤ .053 lb/d	all year	001
Nickel, total [as Ni]	daily average	≤ .421 mg/L	all year	001
Nickel, total [as Ni]	daily maximum	≤ .891 mg/L	all year	001
Nickel, total [as Ni]	daily average	≤ .098 lb/d	all year	001
Nickel, total [as Ni]	daily maximum	≤ .208 lb/d	all year	001
Zinc, total [as Zn]	daily average	≤ .086 mg/L	all year	001
Zinc, total [as Zn]	daily maximum	≤ .184 mg/L	all year	001
Carbon tetrachloride	daily average	≤ .048 mg/L	all year	001
Carbon tetrachloride	daily maximum	≤ .13 mg/L	all year	001
Carbon tetrachloride	daily average	≤ .011 lb/d	all year	001
Carbon tetrachloride	daily maximum	≤ .03 lb/d	all year	001
1,2-Dichloroethane	daily average	≤ .061 mg/L	all year	001
1,2-Dichloroethane	daily maximum	≤ .196 mg/L	all year	001
1,2-Dichloroethane	daily average	≤ .014 lb/d	all year	001
1,2-Dichloroethane	daily maximum	≤ .045 lb/d	all year	001
Chloroform	daily average	≤ .038 mg/L	all year	001
Chloroform	daily maximum	≤ .111 mg/L	all year	001
Chloroform	daily average	≤ .0088 lb/d	all year	001
Chloroform	daily maximum	≤ .026 lb/d	all year	001
Toluene	daily average	≤ .0096 mg/L	all year	001
Toluene	daily maximum	≤ .025 mg/L	all year	001
Toluene	daily average	≤ .002 lb/d	all year	001
Toluene	daily maximum	≤ .0059 lb/d	all year	001
Benzene	daily average	≤ .019 mg/L	all year	001
Benzene	daily maximum	≤ .045 mg/L	all year	001
Benzene	daily average	≤ .0045 lb/d	all year	001
Benzene	daily maximum	≤ .0107 lb/d	all year	001
Acenaphthylene	daily average	≤ .0065 mg/L	all year	001
Acenaphthylene	daily maximum	≤ .016 mg/L	all year	001
Acenaphthylene	daily average	≤ .0015 lb/d	all year	001
Acenaphthylene	daily maximum	≤ .0037 lb/d	all year	001
Acenaphthene	daily average	≤ .0065 mg/L	all year	001
Acenaphthene	daily maximum	≤ .016 mg/L	all year	001
Acenaphthene	daily average	≤ .0015 lb/d	all year	001
Acenaphthene	daily maximum	≤ .0037 lb/d	all year	001
Acrylonitrile	daily average	≤ .032 mg/L	all year	001
Acrylonitrile	daily maximum	≤ .079 mg/L	all year	001
Acrylonitrile	daily average	≤ .0075 lb/d	all year	001
Acrylonitrile	daily maximum	≤ .018 lb/d	all year	001
Anthracene	daily average	≤ .0065 mg/L	all year	001
Anthracene	daily maximum	≤ .016 mg/L	all year	001
Anthracene	daily average	≤ .0015 lb/d	all year	001
Anthracene	daily maximum	≤ .0037 lb/d	all year	001
Benzo[k]fluoranthene	daily average	≤ .0065 mg/L	all year	001
Benzo[k]fluoranthene	daily maximum	≤ .016 mg/L	all year	001
Benzo[k]fluoranthene	daily average	≤ .0015 lb/d	all year	001
Benzo[k]fluoranthene	daily maximum	≤ .0037 lb/d	all year	001
Benzo[a]pyrene	daily average	≤ .000234 mg/L	all year	001
Benzo[a]pyrene	daily maximum	≤ .0005 mg/L	all year	001
Benzo[a]pyrene	daily average	≤ .0016 lb/hr	all year	001
Benzo[a]pyrene	daily maximum	≤ .0038 lb/hr	all year	001
Chlorobenzene	daily average	≤ .048 mg/L	all year	001
Chlorobenzene	daily maximum	≤ .13 mg/L	all year	001
Chlorobenzene	daily average	≤ .011 lb/d	all year	001
Chlorobenzene	daily maximum	≤ .03 lb/d	all year	001
Chrysene	daily average	≤ .003 mg/L	all year	001
Chrysene	daily maximum	≤ .007 mg/L	all year	001
Chrysene	daily average	≤ .0015 lb/d	all year	001
Chrysene	daily maximum	≤ .0037 lb/d	all year	001
Diethyl phthalate	daily average	≤ .015 mg/L	all year	001
Diethyl phthalate	daily maximum	≤ .038 mg/L	all year	001
Diethyl phthalate	daily average	≤ .002 lb/d	all year	001
Diethyl phthalate	daily maximum	≤ .004 lb/d	all year	001
Dimethyl phthalate	daily average	≤ .0065 mg/L	all year	001
Dimethyl phthalate	daily maximum	≤ .016 mg/L	all year	001
Dimethyl phthalate	daily average	≤ .0015 lb/d	all year	001
Dimethyl phthalate	daily maximum	≤ .003 lb/d	all year	001
Ethylbenzene	daily average	≤ .048 mg/L	all year	001
Ethylbenzene	daily maximum	≤ .13 mg/L	all year	001
Ethylbenzene	daily average	≤ .011 lb/d	all year	001
Ethylbenzene	daily maximum	≤ .03 lb/d	all year	001
Fluoranthene	daily average	≤ .0075 mg/L	all year	001
Fluoranthene	daily maximum	≤ .018 mg/L	all year	001
Fluoranthene	daily average	≤ .0017 lb/d	all year	001
Fluoranthene	daily maximum	≤ .004 lb/d	all year	001
Fluorene	daily average	≤ .0065 mg/L	all year	001
Fluorene	daily maximum	≤ .016 mg/L	all year	001
Fluorene	daily average	≤ .0015 lb/d	all year	001
Fluorene	daily maximum	≤ .0037 lb/d	all year	001
Hexachlorobutadiene	daily average	≤ .021 mg/L	all year	001
Hexachlorobutadiene	daily maximum	≤ .044 mg/L	all year	001
Hexachlorobutadiene	daily average	≤ .011 lb/d	all year	001
Hexachlorobutadiene	daily maximum	≤ .03 lb/d	all year	001
Hexachloroethane	daily average	≤ .067 mg/L	all year	001
Hexachloroethane	daily maximum	≤ .272 mg/L	all year	001
Hexachloroethane	daily average	≤ .015 lb/d	all year	001
Hexachloroethane	daily maximum	≤ .063 lb/d	all year	001
Methyl chloride [Chloromethane]	daily average	≤ .037 mg/L	all year	001
Methyl chloride [Chloromethane]	daily maximum	≤ .101 mg/L	all year	001
Methyl chloride [Chloromethane]	daily average	≤ .0088 lb/d	all year	001
Methyl chloride [Chloromethane]	daily maximum	≤ .023 lb/d	all year	001
Methylene chloride	daily average	≤ .012 mg/L	all year	001
Methylene chloride	daily maximum	≤ .058 mg/L	all year	001
Methylene chloride	daily average	≤ .0028 lb/d	all year	001
Methylene chloride	daily maximum	≤ .013 lb/d	all year	001
Nitrobenzene	daily average	≤ .76 mg/L	all year	001
Nitrobenzene	daily maximum	≤ 2.19 mg/L	all year	001
Nitrobenzene	daily average	≤ .179 lb/d	all year	001
Nitrobenzene	daily maximum	≤ .512 lb/d	all year	001
Phenanthrene	daily average	≤ .0065 mg/L	all year	001
Phenanthrene	daily maximum	≤ .016 mg/L	all year	001
Phenanthrene	daily average	≤ .0015 lb/d	all year	001
Phenanthrene	daily maximum	≤ .0037 lb/d	all year	001
Pyrene	daily average	≤ .0068 mg/L	all year	001
Pyrene	daily maximum	≤ .016 mg/L	all year	001
Pyrene	daily average	≤ .0016 lb/d	all year	001
Pyrene	daily maximum	≤ .0038 lb/d	all year	001
Tetrachloroethylene	daily average	≤ .017 mg/L	all year	001
Tetrachloroethylene	daily maximum	≤ .056 mg/L	all year	001
Tetrachloroethylene	daily average	≤ .004 lb/d	all year	001
Tetrachloroethylene	daily maximum	≤ .013 lb/d	all year	001
1,1-Dichloroethane	daily average	≤ .0075 mg/L	all year	001
1,1-Dichloroethane	daily maximum	≤ .0202 mg/L	all year	001
1,1-Dichloroethane	daily average	≤ .0017 lb/d	all year	001
1,1-Dichloroethane	daily maximum	≤ .0047 lb/d	all year	001
1,1-Dichloroethylene	daily average	≤ .0075 mg/L	all year	001
1,1-Dichloroethylene	daily maximum	≤ .0205 mg/L	all year	001
1,1-Dichloroethylene	daily average	≤ .0017 lb/d	all year	001
1,1-Dichloroethylene	daily maximum	≤ .0048 lb/d	all year	001
1,1,1-Trichloroethane	daily average	≤ .0075 mg/L	all year	001
1,1,1-Trichloroethane	daily maximum	≤ .0202 mg/L	all year	001
1,1,1-Trichloroethane	daily average	≤ .0017 lb/d	all year	001
1,1,1-Trichloroethane	daily maximum	≤ .0047 lb/d	all year	001
1,1,2-Trichloroethane	daily average	≤ .0109 mg/L	all year	001
1,1,2-Trichloroethane	daily maximum	≤ .043 mg/L	all year	001
1,1,2-Trichloroethane	daily average	≤ .0025 lb/d	all year	001
1,1,2-Trichloroethane	daily maximum	≤ .01 lb/d	all year	001
Benzo[a]anthracene	daily average	≤ .0023 mg/L	all year	001
Benzo[a]anthracene	daily maximum	≤ .005 mg/L	all year	001
Benzo[a]anthracene	daily average	≤ .0015 lb/d	all year	001
Benzo[a]anthracene	daily maximum	≤ .0037 lb/d	all year	001
1,2-Dichlorobenzene	daily average	≤ .067 mg/L	all year	001
1,2-Dichlorobenzene	daily maximum	≤ .272 mg/L	all year	001
1,2-Dichlorobenzene	daily average	≤ .015 lb/d	all year	001
1,2-Dichlorobenzene	daily maximum	≤ .063 lb/d	all year	001
1,2-Dichloropropane	daily average	≤ .067 mg/L	all year	001
1,2-Dichloropropane	daily maximum	≤ .272 mg/L	all year	001
1,2-Dichloropropane	daily average	≤ .015 lb/d	all year	001
1,2-Dichloropropane	daily maximum	≤ .063 lb/d	all year	001
trans-1,2-Dichloroethylene	daily average	≤ .0085 mg/L	all year	001
trans-1,2-Dichloroethylene	daily maximum	≤ .022 mg/L	all year	001
trans-1,2-Dichloroethylene	daily average	≤ .002 lb/d	all year	001
trans-1,2-Dichloroethylene	daily maximum	≤ .005 lb/d	all year	001
1,2,4-Trichlorobenzene	daily average	≤ .067 mg/L	all year	001
1,2,4-Trichlorobenzene	daily maximum	≤ .272 mg/L	all year	001
1,2,4-Trichlorobenzene	daily average	≤ .015 lb/d	all year	001
1,2,4-Trichlorobenzene	daily maximum	≤ .063 lb/d	all year	001
1,3-Dichlorobenzene	daily average	≤ .048 mg/L	all year	001
1,3-Dichlorobenzene	daily maximum	≤ .13 mg/L	all year	001
1,3-Dichlorobenzene	daily average	≤ .011 lb/d	all year	001
1,3-Dichlorobenzene	daily maximum	≤ .03 lb/d	all year	001
1,4-Dichlorobenzene	daily average	≤ .048 mg/L	all year	001
1,4-Dichlorobenzene	daily maximum	≤ .13 mg/L	all year	001
1,4-Dichlorobenzene	daily average	≤ .011 lb/d	all year	001
1,4-Dichlorobenzene	daily maximum	≤ .03 lb/d	all year	001
2-Nitrophenol	daily average	≤ .022 mg/L	all year	001
2-Nitrophenol	daily maximum	≤ .079 mg/L	all year	001
2-Nitrophenol	daily average	≤ .005 lb/d	all year	001
2-Nitrophenol	daily maximum	≤ .018 lb/d	all year	001
2,4-Dimethylphenol	daily average	≤ .0065 mg/L	all year	001
2,4-Dimethylphenol	daily maximum	≤ .016 mg/L	all year	001
2,4-Dimethylphenol	daily average	≤ .0015 lb/d	all year	001
2,4-Dimethylphenol	daily maximum	≤ .0037 lb/d	all year	001
2,4-Dinitrophenol	daily average	≤ .41 mg/L	all year	001
2,4-Dinitrophenol	daily maximum	≤ 1.47 mg/L	all year	001
2,4-Dinitrophenol	daily average	≤ .096 lb/d	all year	001
2,4-Dinitrophenol	daily maximum	≤ .343 lb/d	all year	001
4-Nitrophenol	daily average	≤ .055 mg/L	all year	001
4-Nitrophenol	daily maximum	≤ .197 mg/L	all year	001
4-Nitrophenol	daily average	≤ .005 lb/d	all year	001
4-Nitrophenol	daily maximum	≤ .019 lb/d	all year	001
4,6-Dinitro-o-cresol	daily average	≤ .026 mg/L	all year	001
4,6-Dinitro-o-cresol	daily maximum	≤ .094 mg/L	all year	001
4,6-Dinitro-o-cresol	daily average	≤ .006 lb/d	all year	001
4,6-Dinitro-o-cresol	daily maximum	≤ .022 lb/d	all year	001
Phenol	daily average	≤ .0065 mg/L	all year	001
Phenol	daily maximum	≤ .016 mg/L	all year	001
Phenol	daily average	≤ .0015 lb/d	all year	001
Phenol	daily maximum	≤ .0037 lb/d	all year	001
Naphthalene	daily average	≤ .0065 mg/L	all year	001
Naphthalene	daily maximum	≤ .016 mg/L	all year	001
Naphthalene	daily average	≤ .0015 lb/d	all year	001
Naphthalene	daily maximum	≤ .0037 lb/d	all year	001
Di[2-ethylhexyl] phthalate [DEHP]	daily average	≤ .032 mg/L	all year	001
Di[2-ethylhexyl] phthalate [DEHP]	daily maximum	≤ .088 mg/L	all year	001
Di[2-ethylhexyl] phthalate [DEHP]	daily average	≤ .0076 lb/d	all year	001
Di[2-ethylhexyl] phthalate [DEHP]	daily maximum	≤ .0206 lb/d	all year	001
Di-n-butyl phthalate	daily average	≤ .0068 mg/L	all year	001
Di-n-butyl phthalate	daily maximum	≤ .014 mg/L	all year	001
Di-n-butyl phthalate	daily average	≤ .0016 lb/d	all year	001
Di-n-butyl phthalate	daily maximum	≤ .0034 lb/d	all year	001
Vinyl chloride	daily average	≤ .033 mg/L	all year	001
Vinyl chloride	daily maximum	≤ .058 mg/L	all year	001
Vinyl chloride	daily average	≤ .0077 lb/d	all year	001
Vinyl chloride	daily maximum	≤ .0137 lb/d	all year	001
Trichloroethylene	daily average	≤ .0089 mg/L	all year	001
Trichloroethylene	daily maximum	≤ .023 mg/L	all year	001
Trichloroethylene	daily average	≤ .002 lb/d	all year	001
Trichloroethylene	daily maximum	≤ .0055 lb/d	all year	001
Hexachlorobenzene	daily average	≤ .000064 mg/L	all year	001
Hexachlorobenzene	daily average	≤ .000064 mg/L	all year	001
Hexachlorobenzene	daily maximum	≤ .00013 mg/L	all year	001
Hexachlorobenzene	daily maximum	≤ .00013 mg/L	all year	001
Hexachlorobenzene	daily average	≤ .0001 lb/d	all year	001
Hexachlorobenzene	daily average	≤ .0001 lb/d	all year	001
Hexachlorobenzene	daily maximum	≤ .0002 lb/d	all year	001
Hexachlorobenzene	daily maximum	≤ .0002 lb/d	all year	001
Flow, in conduit or thru treatment plant	daily average	≤ .028 MGD	all year	001
Flow, in conduit or thru treatment plant	daily maximum	≤ .144 MGD	all year	001
1,3-Dichloropropylene	daily average	≤ .067 mg/L	all year	001
1,3-Dichloropropylene	daily maximum	≤ .272 mg/L	all year	001
1,3-Dichloropropylene	daily average	≤ .015 lb/d	all year	001
1,3-Dichloropropylene	daily maximum	≤ .063 lb/d	all year	001
Cyanide, free available	daily average	≤ .039 mg/L	all year	001
Cyanide, free available	daily maximum	≤ .082 mg/L	all year	001
Cyanide, free available	daily average	≤ .009 lb/d	all year	001
Cyanide, free available	daily maximum	≤ .019 lb/d	all year	001
3,4-Benzofluoranthene	daily average	≤ .0068 mg/L	all year	001
3,4-Benzofluoranthene	daily maximum	≤ .016 mg/L	all year	001
3,4-Benzofluoranthene	daily average	≤ .0016 lb/d	all year	001
3,4-Benzofluoranthene	daily maximum	≤ .0038 lb/d	all year	001
Chloroethane	daily average	≤ .037 mg/L	all year	001
Chloroethane	daily maximum	≤ .101 mg/L	all year	001
Chloroethane	daily average	≤ .0088 lb/d	all year	001
Chloroethane	daily maximum	≤ .023 lb/d	all year	001
Whole effluent toxicity - retest #1	48-hour 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	48-hour 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
Whole Effluent Toxicity [WET] - D. pulex	48-hour minimum	≥ 100 %	all year	TX1
Whole Effluent Toxicity [WET] - D. pulex	monthly average minimum	≥ 100 %	all year	TX1
Whole Effluent Toxicity [WET] - D. pulex	48-hour minimum	≥ 100 %	all year	TX1
Whole Effluent Toxicity [WET] - D. pulex	monthly average minimum	≥ 100 %	all year	TX1
Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex	48-hour minimum	report only (pass=0;fail=1)	all year	TX1
Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex	monthly average minimum	report only (pass=0;fail=1)	all year	TX1
LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas	48-hour minimum	report only (pass=0;fail=1)	all year	TX1
LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas	monthly average minimum	report only (pass=0;fail=1)	all year	TX1
NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex	48-hour minimum	report only (%)	all year	TX1
NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex	monthly average minimum	report only (%)	all year	TX1
NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas	48-hour minimum	report only (%)	all year	TX1
NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas	monthly average minimum	report only (%)	all year	TX1
LOAEC Lethal Static Renewal 48HR Acute Daphnia pulex	48-hour minimum	report only (%)	all year	TX1
LOAEC Lethal Static Renewal 48HR Acute Daphnia pulex	monthly average minimum	report only (%)	all year	TX1
LOAEC Lethal Survival Static Renewal 48Hr Acute Pimephales promelas	48-hour minimum	report only (%)	all year	TX1
LOAEC Lethal Survival Static Renewal 48Hr Acute 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?

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