NPDES permit TX0003727 · Minor NON-POTW · effective, expires 2028-12-22 · EPA's file as of 2026-09-19
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Last period with anything received: 2026-07-31.
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).
| Outfall | Parameter | Statistic | Limit | Months |
|---|---|---|---|---|
| 001 | Temperature, water deg. fahrenheit | DAILY AV | <= 110 deg F | all year |
| 001 | Temperature, water deg. fahrenheit | DAILY MX | <= 128 deg F | all year |
| 001 | BOD, 5-day, 20 deg. C | DAILY AV | <= 14.6 lb/d | all year |
| 001 | BOD, 5-day, 20 deg. C | DAILY MX | <= 37.5 lb/d | all year |
| 001 | pH | MINIMUM | >= 5 SU | all year |
| 001 | pH | MAXIMUM | <= 11 SU | all year |
| 001 | Solids, total suspended | DAILY AV | <= 20 lb/d | all year |
| 001 | Solids, total suspended | DAILY MX | <= 40 lb/d | all year |
| 001 | Oil & Grease | DAILY AV | <= 7 lb/d | all year |
| 001 | Oil & Grease | DAILY MX | <= 14 lb/d | all year |
| 001 | Nitrogen, ammonia total [as N] | DAILY AV | report only | all year |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | report only | all year |
| 001 | Nitrogen, ammonia total [as N] | DAILY AV | report only | all year |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | report only | all year |
| 001 | Carbon, tot organic [TOC] | DAILY AV | <= 50 lb/d | all year |
| 001 | Carbon, tot organic [TOC] | DAILY MX | <= 100 lb/d | all year |
| 001 | Sulfate, total [as SO4] | DAILY MX | report only | all year |
| 001 | Copper, total [as Cu] | DAILY AV | <= .11 lb/d | all year |
| 001 | Copper, total [as Cu] | DAILY MX | <= .24 lb/d | all year |
| 001 | Zinc, total [as Zn] | DAILY AV | <= .63 lb/d | all year |
| 001 | Zinc, total [as Zn] | DAILY MX | <= 1.25 lb/d | all year |
| 001 | Carbon tetrachloride | DAILY AV | <= .05 lb/d | all year |
| 001 | Carbon tetrachloride | DAILY MX | <= .133 lb/d | all year |
| 001 | 1,2-Dichloroethane | DAILY AV | <= .063 lb/d | all year |
| 001 | 1,2-Dichloroethane | DAILY MX | <= .201 lb/d | all year |
| 001 | Chloroform | DAILY AV | <= .039 lb/d | all year |
| 001 | Chloroform | DAILY MX | <= .114 lb/d | all year |
| 001 | Toluene | DAILY AV | <= .01 lb/d | all year |
| 001 | Toluene | DAILY MX | <= .026 lb/d | all year |
| 001 | Benzene | DAILY AV | <= .02 lb/d | all year |
| 001 | Benzene | DAILY MX | <= .047 lb/d | all year |
| 001 | Acenaphthylene | DAILY AV | <= .007 lb/d | all year |
| 001 | Acenaphthylene | DAILY MX | <= .016 lb/d | all year |
| 001 | Acenaphthene | DAILY AV | <= .007 lb/d | all year |
| 001 | Acenaphthene | DAILY MX | <= .016 lb/d | all year |
| 001 | Acrylonitrile | DAILY AV | <= .033 lb/d | all year |
| 001 | Acrylonitrile | DAILY MX | <= .081 lb/d | all year |
| 001 | Anthracene | DAILY AV | <= .007 lb/d | all year |
| 001 | Anthracene | DAILY MX | <= .016 lb/d | all year |
| 001 | Benzo[k]fluoranthene | DAILY AV | <= .007 lb/d | all year |
| 001 | Benzo[k]fluoranthene | DAILY MX | <= .016 lb/d | all year |
| 001 | Benzo[a]pyrene | DAILY AV | <= .00011 lb/d | all year |
| 001 | Benzo[a]pyrene | DAILY MX | <= .00023 lb/d | all year |
| 001 | Chlorobenzene | DAILY AV | <= .05 lb/d | all year |
| 001 | Chlorobenzene | DAILY MX | <= .133 lb/d | all year |
| 001 | Chrysene | DAILY AV | <= .007 lb/d | all year |
| 001 | Chrysene | DAILY MX | <= .016 lb/d | all year |
| 001 | Diethyl phthalate | DAILY AV | <= .016 lb/d | all year |
| 001 | Diethyl phthalate | DAILY MX | <= .04 lb/d | all year |
| 001 | Dimethyl phthalate | DAILY AV | <= .007 lb/d | all year |
| 001 | Dimethyl phthalate | DAILY MX | <= .016 lb/d | all year |
| 001 | Ethylbenzene | DAILY AV | <= .05 lb/d | all year |
| 001 | Ethylbenzene | DAILY MX | <= .133 lb/d | all year |
| 001 | Fluoranthene | DAILY AV | <= .008 lb/d | all year |
| 001 | Fluoranthene | DAILY MX | <= .019 lb/d | all year |
| 001 | Fluorene | DAILY AV | <= .007 lb/d | all year |
| 001 | Fluorene | DAILY MX | <= .016 lb/d | all year |
| 001 | Hexachlorobutadiene | DAILY AV | <= .009 lb/d | all year |
| 001 | Hexachlorobutadiene | DAILY MX | <= .02 lb/d | all year |
| 001 | Hexachloroethane | DAILY AV | <= .069 lb/d | all year |
| 001 | Hexachloroethane | DAILY MX | <= .21 lb/d | all year |
| 001 | Methyl chloride [Chloromethane] | DAILY AV | <= .039 lb/d | all year |
| 001 | Methyl chloride [Chloromethane] | DAILY MX | <= .103 lb/d | all year |
| 001 | Methylene chloride | DAILY AV | <= .013 lb/d | all year |
| 001 | Methylene chloride | DAILY MX | <= .06 lb/d | all year |
| 001 | Nitrobenzene | DAILY AV | <= .784 lb/d | all year |
| 001 | Nitrobenzene | DAILY MX | <= 2.244 lb/d | all year |
| 001 | Phenanthrene | DAILY AV | <= .007 lb/d | all year |
| 001 | Phenanthrene | DAILY MX | <= .016 lb/d | all year |
| 001 | Pyrene | DAILY AV | <= .007 lb/d | all year |
| 001 | Pyrene | DAILY MX | <= .017 lb/d | all year |
| 001 | Tetrachloroethylene | DAILY AV | <= .018 lb/d | all year |
| 001 | Tetrachloroethylene | DAILY MX | <= .057 lb/d | all year |
| 001 | 1,1-Dichloroethane | DAILY AV | <= .008 lb/d | all year |
| 001 | 1,1-Dichloroethane | DAILY MX | <= .021 lb/d | all year |
| 001 | 1,1-Dichloroethylene | DAILY AV | <= .008 lb/d | all year |
| 001 | 1,1-Dichloroethylene | DAILY MX | <= .021 lb/d | all year |
| 001 | 1,1,1-Trichloroethane | DAILY AV | <= .008 lb/d | all year |
| 001 | 1,1,1-Trichloroethane | DAILY MX | <= .021 lb/d | all year |
| 001 | 1,1,2-Trichloroethane | DAILY AV | <= .011 lb/d | all year |
| 001 | 1,1,2-Trichloroethane | DAILY MX | <= .045 lb/d | all year |
| 001 | Benzo[a]anthracene | DAILY AV | <= .0011 lb/d | all year |
| 001 | Benzo[a]anthracene | DAILY MX | <= .0023 lb/d | all year |
| 001 | 1,2-Dichlorobenzene | DAILY AV | <= .069 lb/d | all year |
| 001 | 1,2-Dichlorobenzene | DAILY MX | <= .278 lb/d | all year |
| 001 | 1,2-Dichloropropane | DAILY AV | <= .069 lb/d | all year |
| 001 | 1,2-Dichloropropane | DAILY MX | <= .278 lb/d | all year |
| 001 | trans-1,2-Dichloroethylene | DAILY AV | <= .009 lb/d | all year |
| 001 | trans-1,2-Dichloroethylene | DAILY MX | <= .023 lb/d | all year |
| 001 | 1,2,4-Trichlorobenzene | DAILY AV | <= .069 lb/d | all year |
| 001 | 1,2,4-Trichlorobenzene | DAILY MX | <= .278 lb/d | all year |
| 001 | 1,3-Dichlorobenzene | DAILY AV | <= .05 lb/d | all year |
| 001 | 1,3-Dichlorobenzene | DAILY MX | <= .133 lb/d | all year |
| 001 | 1,4-Dichlorobenzene | DAILY AV | <= .05 lb/d | all year |
| 001 | 1,4-Dichlorobenzene | DAILY MX | <= .133 lb/d | all year |
| 001 | 2-Nitrophenol | DAILY AV | <= .023 lb/d | all year |
| 001 | 2-Nitrophenol | DAILY MX | <= .081 lb/d | all year |
| 001 | 2,4-Dimethylphenol | DAILY AV | <= .007 lb/d | all year |
| 001 | 2,4-Dimethylphenol | DAILY MX | <= .016 lb/d | all year |
| 001 | 2,4-Dinitrophenol | DAILY AV | <= .423 lb/d | all year |
| 001 | 2,4-Dinitrophenol | DAILY MX | <= 1.504 lb/d | all year |
| 001 | 4-Nitrophenol | DAILY AV | <= .057 lb/d | all year |
| 001 | 4-Nitrophenol | DAILY MX | <= .202 lb/d | all year |
| 001 | 4,6-Dinitro-o-cresol | DAILY AV | <= .027 lb/d | all year |
| 001 | 4,6-Dinitro-o-cresol | DAILY MX | <= .097 lb/d | all year |
| 001 | Phenol | DAILY AV | <= .007 lb/d | all year |
| 001 | Phenol | DAILY MX | <= .016 lb/d | all year |
| 001 | Naphthalene | DAILY AV | <= .007 lb/d | all year |
| 001 | Naphthalene | DAILY MX | <= .016 lb/d | all year |
| 001 | Di[2-ethylhexyl] phthalate [DEHP] | DAILY AV | <= .033 lb/d | all year |
| 001 | Di[2-ethylhexyl] phthalate [DEHP] | DAILY MX | <= .09 lb/d | all year |
| 001 | Di-n-butyl phthalate | DAILY AV | <= .007 lb/d | all year |
| 001 | Di-n-butyl phthalate | DAILY MX | <= .015 lb/d | all year |
| 001 | Vinyl chloride | DAILY AV | <= .034 lb/d | all year |
| 001 | Vinyl chloride | DAILY MX | <= .06 lb/d | all year |
| 001 | Trichloroethylene | DAILY AV | <= .009 lb/d | all year |
| 001 | Trichloroethylene | DAILY MX | <= .024 lb/d | all year |
| 001 | Hexachlorobenzene | DAILY AV | <= .0002 lb/d | all year |
| 001 | Hexachlorobenzene | DAILY MX | <= .0004 lb/d | all year |
| 001 | 1,3-Dichloropropylene | DAILY AV | <= .069 lb/d | all year |
| 001 | 1,3-Dichloropropylene | DAILY MX | <= .278 lb/d | all year |
| 001 | Flow [dry weather] | DAILY AV | <= .075 MGD | all year |
| 001 | Flow [dry weather] | DAILY MX | <= .25 MGD | all year |
| 001 | Nonylphenol | DAILY AV | <= .048 lb/d | all year |
| 001 | Nonylphenol | DAILY MX | <= .101 lb/d | all year |
| 001 | 3,4-Benzofluoranthene | DAILY AV | <= .007 lb/d | all year |
| 001 | 3,4-Benzofluoranthene | DAILY MX | <= .017 lb/d | all year |
| 001 | pH range excursions, > 60 minutes | MO TOTAL | <= 0 occur/mo | all year |
| 001 | pH range excursions, monthly total accum | MO TOTAL | <= 446 min | all year |
| 001 | Chloroethane | DAILY AV | <= .039 lb/d | all year |
| 001 | Chloroethane | DAILY MX | <= .103 lb/d | all year |
| 002 | pH | MINIMUM | >= 6 SU | all year |
| 002 | pH | MAXIMUM | <= 9 SU | all year |
| 002 | Oil & Grease | DAILY MX | <= 15 mg/L | all year |
| 002 | Carbon, tot organic [TOC] | DAILY MX | <= 55 mg/L | all year |
| 002 | Flow, in conduit or thru treatment plant | DAILY AV | report only | all year |
| 002 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 003 | pH | MINIMUM | >= 6 SU | all year |
| 003 | pH | MAXIMUM | <= 9 SU | all year |
| 003 | Oil & Grease | DAILY MX | <= 15 mg/L | all year |
| 003 | Carbon, tot organic [TOC] | DAILY MX | <= 55 mg/L | all year |
| 003 | Flow, in conduit or thru treatment plant | DAILY AV | report only | all year |
| 003 | Flow, in conduit or thru treatment plant | DAILY MX | report only | 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