NPDES permit TX0137715 · Major NON-POTW · effective, expires 2029-03-04 · 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 (read off this permit's own late-day counts in EPA's filings).
| Outfall | Parameter | Statistic | Limit | Months |
|---|---|---|---|---|
| 001 | Temperature, water deg. fahrenheit | DAILY AV | report only | all year |
| 001 | Temperature, water deg. fahrenheit | DAILY MX | report only | all year |
| 001 | BOD, 5-day, 20 deg. C | DAILY AV | <= 1046 lb/d | all year |
| 001 | BOD, 5-day, 20 deg. C | DAILY MX | <= 2422 lb/d | all year |
| 001 | pH | MINIMUM | >= 6 SU | all year |
| 001 | pH | MAXIMUM | <= 9 SU | all year |
| 001 | Solids, total suspended | DAILY AV | <= 2417 lb/d | all year |
| 001 | Solids, total suspended | DAILY MX | <= 7910 lb/d | all year |
| 001 | Oil & Grease | DAILY AV | <= 1078 lb/d | all year |
| 001 | Oil & Grease | DAILY MX | <= 1440 lb/d | all year |
| 001 | Carbon tetrachloride | DAILY AV | <= .849 lb/d | all year |
| 001 | Carbon tetrachloride | DAILY MX | <= 2.13 lb/d | all year |
| 001 | 1,2-Dichloroethane | DAILY AV | <= 1.69 lb/d | all year |
| 001 | 1,2-Dichloroethane | DAILY MX | <= 5.31 lb/d | all year |
| 001 | Chloroform | DAILY AV | <= 5.37 lb/d | all year |
| 001 | Chloroform | DAILY MX | <= 15.6 lb/d | all year |
| 001 | Toluene | DAILY AV | <= .472 lb/d | all year |
| 001 | Toluene | DAILY MX | <= 1.4 lb/d | all year |
| 001 | Benzene | DAILY AV | <= .745 lb/d | all year |
| 001 | Benzene | DAILY MX | <= 2.42 lb/d | all year |
| 001 | Acenaphthylene | DAILY AV | <= .38 lb/d | all year |
| 001 | Acenaphthylene | DAILY MX | <= 1 lb/d | all year |
| 001 | Acenaphthene | DAILY AV | <= .38 lb/d | all year |
| 001 | Acenaphthene | DAILY MX | <= 1 lb/d | all year |
| 001 | Acrylonitrile | DAILY AV | <= 1.7 lb/d | all year |
| 001 | Acrylonitrile | DAILY MX | <= 4.27 lb/d | all year |
| 001 | Anthracene | DAILY AV | <= .38 lb/d | all year |
| 001 | Anthracene | DAILY MX | <= 1 lb/d | all year |
| 001 | Benzo[k]fluoranthene | DAILY AV | <= .38 lb/d | all year |
| 001 | Benzo[k]fluoranthene | DAILY MX | <= 1 lb/d | all year |
| 001 | Benzo[a]pyrene | DAILY AV | <= .0051 lb/d | all year |
| 001 | Benzo[a]pyrene | DAILY MX | <= .0107 lb/d | all year |
| 001 | Chlorobenzene | DAILY AV | <= .808 lb/d | all year |
| 001 | Chlorobenzene | DAILY MX | <= 1.99 lb/d | all year |
| 001 | Chrysene | DAILY AV | <= .38 lb/d | all year |
| 001 | Chrysene | DAILY MX | <= 1 lb/d | all year |
| 001 | Diethyl phthalate | DAILY AV | <= 1.29 lb/d | all year |
| 001 | Diethyl phthalate | DAILY MX | <= 3.24 lb/d | all year |
| 001 | Dimethyl phthalate | DAILY AV | <= .339 lb/d | all year |
| 001 | Dimethyl phthalate | DAILY MX | <= .839 lb/d | all year |
| 001 | Ethylbenzene | DAILY AV | <= 1.03 lb/d | all year |
| 001 | Ethylbenzene | DAILY MX | <= 3.08 lb/d | all year |
| 001 | Fluoranthene | DAILY AV | <= .433 lb/d | all year |
| 001 | Fluoranthene | DAILY MX | <= 1.15 lb/d | all year |
| 001 | Fluorene | DAILY AV | <= .38 lb/d | all year |
| 001 | Fluorene | DAILY MX | <= 1 lb/d | all year |
| 001 | Hexachlorobutadiene | DAILY AV | <= .448 lb/d | all year |
| 001 | Hexachlorobutadiene | DAILY MX | <= .942 lb/d | all year |
| 001 | Hexachloroethane | DAILY AV | <= 1.11 lb/d | all year |
| 001 | Hexachloroethane | DAILY MX | <= 4.11 lb/d | all year |
| 001 | Methyl chloride [Chloromethane] | DAILY AV | <= 1.63 lb/d | all year |
| 001 | Methyl chloride [Chloromethane] | DAILY MX | <= 3.83 lb/d | all year |
| 001 | Methylene chloride | DAILY AV | <= .697 lb/d | all year |
| 001 | Methylene chloride | DAILY MX | <= 1.93 lb/d | all year |
| 001 | Nitrobenzene | DAILY AV | <= 9.88 lb/d | all year |
| 001 | Nitrobenzene | DAILY MX | <= 28.1 lb/d | all year |
| 001 | Phenanthrene | DAILY AV | <= .38 lb/d | all year |
| 001 | Phenanthrene | DAILY MX | <= 1 lb/d | all year |
| 001 | Pyrene | DAILY AV | <= .425 lb/d | all year |
| 001 | Pyrene | DAILY MX | <= 1.11 lb/d | all year |
| 001 | Tetrachloroethylene | DAILY AV | <= .52 lb/d | all year |
| 001 | Tetrachloroethylene | DAILY MX | <= 1.45 lb/d | all year |
| 001 | 1,1-Dichloroethane | DAILY AV | <= .392 lb/d | all year |
| 001 | 1,1-Dichloroethane | DAILY MX | <= 1.05 lb/d | all year |
| 001 | 1,1-Dichloroethylene | DAILY AV | <= .311 lb/d | all year |
| 001 | 1,1-Dichloroethylene | DAILY MX | <= .595 lb/d | all year |
| 001 | 1,1,1-Trichloroethane | DAILY AV | <= .379 lb/d | all year |
| 001 | 1,1,1-Trichloroethane | DAILY MX | <= .985 lb/d | all year |
| 001 | 1,1,2-Trichloroethane | DAILY AV | <= .421 lb/d | all year |
| 001 | 1,1,2-Trichloroethane | DAILY MX | <= 1.27 lb/d | all year |
| 001 | Benzo[a]anthracene | DAILY AV | <= .051 lb/d | all year |
| 001 | Benzo[a]anthracene | DAILY MX | <= .107 lb/d | all year |
| 001 | 1,2-Dichlorobenzene | DAILY AV | <= 1.88 lb/d | all year |
| 001 | 1,2-Dichlorobenzene | DAILY MX | <= 5.59 lb/d | all year |
| 001 | 1,2-Dichloropropane | DAILY AV | <= 2.91 lb/d | all year |
| 001 | 1,2-Dichloropropane | DAILY MX | <= 6.5 lb/d | all year |
| 001 | trans-1,2-Dichloroethylene | DAILY AV | <= .392 lb/d | all year |
| 001 | trans-1,2-Dichloroethylene | DAILY MX | <= 1.01 lb/d | all year |
| 001 | 1,2,4-Trichlorobenzene | DAILY AV | <= 1.75 lb/d | all year |
| 001 | 1,2,4-Trichlorobenzene | DAILY MX | <= 5.28 lb/d | all year |
| 001 | 1,3-Dichlorobenzene | DAILY AV | <= 1.02 lb/d | all year |
| 001 | 1,3-Dichlorobenzene | DAILY MX | <= 2.21 lb/d | all year |
| 001 | 1,4-Dichlorobenzene | DAILY AV | <= .808 lb/d | all year |
| 001 | 1,4-Dichlorobenzene | DAILY MX | <= 1.99 lb/d | all year |
| 001 | 2-Chlorophenol | DAILY AV | <= .421 lb/d | all year |
| 001 | 2-Chlorophenol | DAILY MX | <= 1.33 lb/d | all year |
| 001 | 2-Nitrophenol | DAILY AV | <= .834 lb/d | all year |
| 001 | 2-Nitrophenol | DAILY MX | <= 1.92 lb/d | all year |
| 001 | 2,4-Dichlorophenol | DAILY AV | <= .53 lb/d | all year |
| 001 | 2,4-Dichlorophenol | DAILY MX | <= 1.52 lb/d | all year |
| 001 | 2,4-Dimethylphenol | DAILY AV | <= .325 lb/d | all year |
| 001 | 2,4-Dimethylphenol | DAILY MX | <= .689 lb/d | all year |
| 001 | 2,4-Dinitrotoluene | DAILY AV | <= 1.53 lb/d | all year |
| 001 | 2,4-Dinitrotoluene | DAILY MX | <= 3.87 lb/d | all year |
| 001 | 2,4-Dinitrophenol | DAILY AV | <= 6.1 lb/d | all year |
| 001 | 2,4-Dinitrophenol | DAILY MX | <= 19.9 lb/d | all year |
| 001 | 2,6-Dinitrotoluene | DAILY AV | <= 3.46 lb/d | all year |
| 001 | 2,6-Dinitrotoluene | DAILY MX | <= 8.71 lb/d | all year |
| 001 | 4-Nitrophenol | DAILY AV | <= 1.66 lb/d | all year |
| 001 | 4-Nitrophenol | DAILY MX | <= 4.13 lb/d | all year |
| 001 | 4,6-Dinitro-o-cresol | DAILY AV | <= 1.39 lb/d | all year |
| 001 | 4,6-Dinitro-o-cresol | DAILY MX | <= 4.94 lb/d | all year |
| 001 | Phenol | DAILY AV | <= .284 lb/d | all year |
| 001 | Phenol | DAILY MX | <= .553 lb/d | all year |
| 001 | Naphthalene | DAILY AV | <= .38 lb/d | all year |
| 001 | Naphthalene | DAILY MX | <= 1 lb/d | all year |
| 001 | Di[2-ethylhexyl] phthalate [DEHP] | DAILY AV | <= 1.8 lb/d | all year |
| 001 | Di[2-ethylhexyl] phthalate [DEHP] | DAILY MX | <= 4.89 lb/d | all year |
| 001 | Di-n-butyl phthalate | DAILY AV | <= .452 lb/d | all year |
| 001 | Di-n-butyl phthalate | DAILY MX | <= .958 lb/d | all year |
| 001 | Vinyl chloride | DAILY AV | <= 1.82 lb/d | all year |
| 001 | Vinyl chloride | DAILY MX | <= 4.37 lb/d | all year |
| 001 | Trichloroethylene | DAILY AV | <= .396 lb/d | all year |
| 001 | Trichloroethylene | DAILY MX | <= 1.02 lb/d | all year |
| 001 | Aldrin | DAILY AV | report only | all year |
| 001 | Aldrin | DAILY MX | report only | all year |
| 001 | Aldrin | DAILY AV | report only | all year |
| 001 | Aldrin | DAILY MX | report only | all year |
| 001 | Hexachlorobenzene | DAILY AV | report only | all year |
| 001 | Hexachlorobenzene | DAILY MX | report only | all year |
| 001 | Hexachlorobenzene | DAILY AV | <= .0014 lb/d | all year |
| 001 | Hexachlorobenzene | DAILY MX | <= .0029 lb/d | all year |
| 001 | Flow, in conduit or thru treatment plant | DAILY AV | <= 9.03 MGD | all year |
| 001 | Flow, in conduit or thru treatment plant | DAILY MX | <= 13.24 MGD | all year |
| 001 | 1,3-Dichloropropylene | DAILY AV | <= 1.22 lb/d | all year |
| 001 | 1,3-Dichloropropylene | DAILY MX | <= 3.97 lb/d | all year |
| 001 | 3,4-Benzofluoranthene | DAILY AV | <= .397 lb/d | all year |
| 001 | 3,4-Benzofluoranthene | DAILY MX | <= 1.03 lb/d | all year |
| 001 | Chloroethane | DAILY AV | <= 1.88 lb/d | all year |
| 001 | Chloroethane | DAILY MX | <= 4.9 lb/d | all year |
| 002 | pH | MINIMUM | >= 6 SU | all year |
| 002 | pH | MAXIMUM | <= 9 SU | all year |
| 002 | Solids, total suspended | DAILY AV | report only | all year |
| 002 | Solids, total suspended | DAILY MX | report only | all year |
| 002 | Oil & Grease | DAILY MX | <= 15 mg/L | all year |
| 002 | Carbon, tot organic [TOC] | DAILY MX | <= 75 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 |
| 005 | pH | MINIMUM | >= 6 SU | all year |
| 005 | pH | MAXIMUM | <= 9 SU | all year |
| 005 | Oil & Grease | DAILY MX | <= 15 mg/L | all year |
| 005 | Carbon, tot organic [TOC] | DAILY MX | <= 75 mg/L | all year |
| 005 | Flow, in conduit or thru treatment plant | DAILY AV | report only | all year |
| 005 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| TX1 | Whole effluent toxicity - retest #1 | 7 DA MIN | report only | all year |
| TX1 | Whole effluent toxicity - retest #1 | MO AV MN | report only | all year |
| TX1 | Whole effluent toxicity - retest #2 | 7 DA MIN | report only | all year |
| TX1 | Whole effluent toxicity - retest #2 | MO AV MN | report only | all year |
| TX1 | Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia) | 7 DA MIN | report only | all year |
| TX1 | Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia) | MO AV MN | report only | all year |
| TX1 | Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia beryllina | 7 DA MIN | report only | all year |
| TX1 | Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia beryllina | MO AV MN | report only | all year |
| TX1 | NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 7 DA MIN | report only | all year |
| TX1 | NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | MO AV MN | report only | all year |
| TX1 | NOEC Lethal Static Renewal 7 Day Chronic Menidia beryllina | 7 DA MIN | report only | all year |
| TX1 | NOEC Lethal Static Renewal 7 Day Chronic Menidia beryllina | MO AV MN | report only | all year |
| TX1 | NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 7 DA MIN | report only | all year |
| TX1 | NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | MO AV MN | report only | all year |
| TX1 | NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllina | 7 DA MIN | report only | all year |
| TX1 | NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllina | MO AV MN | report only | all year |
| TX1 | Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 7 DA MIN | report only | all year |
| TX1 | Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | MO AV MN | report only | all year |
| TX1 | Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllina | 7 DA MIN | report only | all year |
| TX1 | Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllina | MO AV MN | report only | all year |
| TX1 | LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 7 DA MIN | report only | all year |
| TX1 | LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | MO AV MN | report only | all year |
| TX1 | LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia beryllina | 7 DA MIN | report only | all year |
| TX1 | LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia beryllina | MO AV MN | report only | all year |
| TX1 | LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia) | 7 DA MIN | report only | all year |
| TX1 | LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia) | MO AV MN | report only | all year |
| TX1 | LOEC Sub-Lethal Growth Static Renewal 7 Day Chronic Menidia beryllina | 7 DA MIN | report only | all year |
| TX1 | LOEC Sub-Lethal Growth Static Renewal 7 Day Chronic Menidia beryllina | MO AV MN | report only | all year |
| TXA | LC50 Pass/Fail Static 24Hr Acute Americamysis bahia (formerly Mysidopsis bahia) | SINGSAMP | report only | all year |
| TXA | LC50 Pass/Fail Static 24Hr Acute Menidia beryllina | SINGGRAB | report only | all year |
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