NPDES permit TX0089125 · Major NON-POTW · effective, expires 2031-03-26 · 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 | Oxygen, dissolved [DO] | MO MIN | >= 5 mg/L | all year |
| 001 | Oxygen demand, chem. [high level] [COD] | DAILY AV | <= 11259 lb/d | all year |
| 001 | Oxygen demand, chem. [high level] [COD] | DAILY MX | <= 28530 lb/d | all year |
| 001 | pH | MINIMUM | >= 6.5 SU | all year |
| 001 | pH | MAXIMUM | <= 9 SU | all year |
| 001 | Solids, total suspended | DAILY AV | <= 1518 lb/d | all year |
| 001 | Solids, total suspended | DAILY MX | <= 4346 lb/d | all year |
| 001 | Oil & Grease | DAILY AV | <= 628 lb/d | all year |
| 001 | Oil & Grease | DAILY MX | <= 837 lb/d | all year |
| 001 | Nitrogen, ammonia total [as N] | DAILY AV | <= 126 lb/d | all year |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 252 lb/d | all year |
| 001 | Sulfate, total [as SO4] | DAILY MX | <= 475 mg/L | all year |
| 001 | Sulfate, total [as SO4] | DAILY AV | <= 7904 lb/d | all year |
| 001 | Carbon tetrachloride | DAILY AV | <= 3.73 lb/d | all year |
| 001 | Carbon tetrachloride | DAILY MX | <= 9.98 lb/d | all year |
| 001 | 1,2-Dichloroethane | DAILY AV | <= 4.73 lb/d | all year |
| 001 | 1,2-Dichloroethane | DAILY MX | <= 15.07 lb/d | all year |
| 001 | Chloroform | DAILY AV | <= 2.91 lb/d | all year |
| 001 | Chloroform | DAILY MX | <= 8.53 lb/d | all year |
| 001 | Toluene | DAILY AV | <= .735 lb/d | all year |
| 001 | Toluene | DAILY MX | <= 1.94 lb/d | all year |
| 001 | Benzene | DAILY AV | <= 1.5 lb/d | all year |
| 001 | Benzene | DAILY MX | <= 3.52 lb/d | all year |
| 001 | Acenaphthylene | DAILY AV | <= .499 lb/d | all year |
| 001 | Acenaphthylene | DAILY MX | <= 1.23 lb/d | all year |
| 001 | Acenaphthene | DAILY AV | <= .499 lb/d | all year |
| 001 | Acenaphthene | DAILY MX | <= 1.23 lb/d | all year |
| 001 | Acrylonitrile | DAILY AV | <= 2.47 lb/d | all year |
| 001 | Acrylonitrile | DAILY MX | <= 6.09 lb/d | all year |
| 001 | Anthracene | DAILY AV | <= .499 lb/d | all year |
| 001 | Anthracene | DAILY MX | <= 1.23 lb/d | all year |
| 001 | Benzo[b]fluoranthene | DAILY AV | <= .525 lb/d | all year |
| 001 | Benzo[b]fluoranthene | DAILY MX | <= 1.26 lb/d | all year |
| 001 | Benzo[k]fluoranthene | DAILY AV | <= .499 lb/d | all year |
| 001 | Benzo[k]fluoranthene | DAILY MX | <= 1.23 lb/d | all year |
| 001 | Benzo[a]pyrene | DAILY AV | <= .00018 lb/d | all year |
| 001 | Benzo[a]pyrene | DAILY MX | <= .0004 lb/d | all year |
| 001 | Chlorobenzene | DAILY AV | <= 3.73 lb/d | all year |
| 001 | Chlorobenzene | DAILY MX | <= 9.98 lb/d | all year |
| 001 | Chrysene | DAILY AV | <= .287 lb/d | all year |
| 001 | Chrysene | DAILY MX | <= .607 lb/d | all year |
| 001 | Diethyl phthalate | DAILY AV | <= 1.21 lb/d | all year |
| 001 | Diethyl phthalate | DAILY MX | <= 2.97 lb/d | all year |
| 001 | Dimethyl phthalate | DAILY AV | <= .499 lb/d | all year |
| 001 | Dimethyl phthalate | DAILY MX | <= 1.23 lb/d | all year |
| 001 | Ethylbenzene | DAILY AV | <= 3.73 lb/d | all year |
| 001 | Ethylbenzene | DAILY MX | <= 9.98 lb/d | all year |
| 001 | Fluoranthene | DAILY AV | <= .578 lb/d | all year |
| 001 | Fluoranthene | DAILY MX | <= 1.42 lb/d | all year |
| 001 | Fluorene | DAILY AV | <= .499 lb/d | all year |
| 001 | Fluorene | DAILY MX | <= 1.23 lb/d | all year |
| 001 | Hexachlorobutadiene | DAILY AV | <= .0251 lb/d | all year |
| 001 | Hexachlorobutadiene | DAILY MX | <= .0527 lb/d | all year |
| 001 | Hexachloroethane | DAILY AV | <= .266 lb/d | all year |
| 001 | Hexachloroethane | DAILY MX | <= .561 lb/d | all year |
| 001 | Methyl chloride [Chloromethane] | DAILY AV | <= 2.89 lb/d | all year |
| 001 | Methyl chloride [Chloromethane] | DAILY MX | <= 7.74 lb/d | all year |
| 001 | Methylene chloride | DAILY AV | <= .945 lb/d | all year |
| 001 | Methylene chloride | DAILY MX | <= 4.46 lb/d | all year |
| 001 | Nitrobenzene | DAILY AV | <= 58.73 lb/d | all year |
| 001 | Nitrobenzene | DAILY MX | <= 168.1 lb/d | all year |
| 001 | Phenanthrene | DAILY AV | <= .499 lb/d | all year |
| 001 | Phenanthrene | DAILY MX | <= 1.23 lb/d | all year |
| 001 | Pyrene | DAILY AV | <= .525 lb/d | all year |
| 001 | Pyrene | DAILY MX | <= 1.26 lb/d | all year |
| 001 | Tetrachloroethylene | DAILY AV | <= 1.37 lb/d | all year |
| 001 | Tetrachloroethylene | DAILY MX | <= 4.31 lb/d | all year |
| 001 | 1,1-Dichloroethane | DAILY AV | <= .578 lb/d | all year |
| 001 | 1,1-Dichloroethane | DAILY MX | <= 1.55 lb/d | all year |
| 001 | 1,1-Dichloroethylene | DAILY AV | <= .578 lb/d | all year |
| 001 | 1,1-Dichloroethylene | DAILY MX | <= 1.58 lb/d | all year |
| 001 | 1,1,1-Trichloroethane | DAILY AV | <= .578 lb/d | all year |
| 001 | 1,1,1-Trichloroethane | DAILY MX | <= 1.55 lb/d | all year |
| 001 | 1,1,2-Trichloroethane | DAILY AV | <= .84 lb/d | all year |
| 001 | 1,1,2-Trichloroethane | DAILY MX | <= 3.33 lb/d | all year |
| 001 | Benzo[a]anthracene | DAILY AV | <= .0029 lb/d | all year |
| 001 | Benzo[a]anthracene | DAILY MX | <= .006 lb/d | all year |
| 001 | 1,2-Dichlorobenzene | DAILY AV | <= 5.15 lb/d | all year |
| 001 | 1,2-Dichlorobenzene | DAILY MX | <= 20.85 lb/d | all year |
| 001 | 1,2-Dichloropropane | DAILY AV | <= 5.15 lb/d | all year |
| 001 | 1,2-Dichloropropane | DAILY MX | <= 20.85 lb/d | all year |
| 001 | trans-1,2-Dichloroethylene | DAILY AV | <= .656 lb/d | all year |
| 001 | trans-1,2-Dichloroethylene | DAILY MX | <= 1.73 lb/d | all year |
| 001 | 1,2,4-Trichlorobenzene | DAILY AV | <= 5.15 lb/d | all year |
| 001 | 1,2,4-Trichlorobenzene | DAILY MX | <= 20.85 lb/d | all year |
| 001 | 1,3-Dichlorobenzene | DAILY AV | <= 3.73 lb/d | all year |
| 001 | 1,3-Dichlorobenzene | DAILY MX | <= 9.98 lb/d | all year |
| 001 | 1,4-Dichlorobenzene | DAILY AV | <= 3.73 lb/d | all year |
| 001 | 1,4-Dichlorobenzene | DAILY MX | <= 9.98 lb/d | all year |
| 001 | 2-Nitrophenol | DAILY AV | <= 1.71 lb/d | all year |
| 001 | 2-Nitrophenol | DAILY MX | <= 6.06 lb/d | all year |
| 001 | 2,4-Dimethylphenol | DAILY AV | <= .499 lb/d | all year |
| 001 | 2,4-Dimethylphenol | DAILY MX | <= 1.23 lb/d | all year |
| 001 | 2,4-Dinitrophenol | DAILY AV | <= 31.69 lb/d | all year |
| 001 | 2,4-Dinitrophenol | DAILY MX | <= 112.7 lb/d | all year |
| 001 | 4-Nitrophenol | DAILY AV | <= 4.25 lb/d | all year |
| 001 | 4-Nitrophenol | DAILY MX | <= 15.12 lb/d | all year |
| 001 | 4,6-Dinitro-o-cresol | DAILY AV | <= 2.05 lb/d | all year |
| 001 | 4,6-Dinitro-o-cresol | DAILY MX | <= 7.27 lb/d | all year |
| 001 | Phenol | DAILY AV | <= .499 lb/d | all year |
| 001 | Phenol | DAILY MX | <= 1.23 lb/d | all year |
| 001 | Naphthalene | DAILY AV | <= .499 lb/d | all year |
| 001 | Naphthalene | DAILY MX | <= 1.23 lb/d | all year |
| 001 | Di[2-ethylhexyl] phthalate [DEHP] | DAILY AV | <= .858 lb/d | all year |
| 001 | Di[2-ethylhexyl] phthalate [DEHP] | DAILY MX | <= 1.82 lb/d | all year |
| 001 | Di-n-butyl phthalate | DAILY AV | <= .525 lb/d | all year |
| 001 | Di-n-butyl phthalate | DAILY MX | <= 1.13 lb/d | all year |
| 001 | Vinyl chloride | DAILY AV | <= 1.88 lb/d | all year |
| 001 | Vinyl chloride | DAILY MX | <= 3.98 lb/d | all year |
| 001 | Trichloroethylene | DAILY AV | <= .683 lb/d | all year |
| 001 | Trichloroethylene | DAILY MX | <= 1.81 lb/d | all year |
| 001 | Hexachlorobenzene | DAILY AV | <= .00008 lb/d | all year |
| 001 | Hexachlorobenzene | DAILY MX | <= .0002 lb/d | all year |
| 001 | Flow, in conduit or thru treatment plant | DAILY AV | <= 5.013 MGD | all year |
| 001 | Flow, in conduit or thru treatment plant | DAILY MX | <= 13 MGD | all year |
| 001 | 1,3-Dichloropropylene | DAILY AV | <= 5.15 lb/d | all year |
| 001 | 1,3-Dichloropropylene | DAILY MX | <= 20.85 lb/d | all year |
| 001 | Solids, total dissolved | DAILY MX | <= 1134 mg/L | all year |
| 001 | Solids, total dissolved | DAILY AV | <= 18899 lb/d | all year |
| 001 | 3,4-Benzofluoranthene | DAILY AV | <= .525 lb/d | all year |
| 001 | 3,4-Benzofluoranthene | DAILY MX | <= 1.26 lb/d | all year |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY AV | <= 393 lb/d | all year |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY MX | <= 996 lb/d | all year |
| 001 | Chloroethane | DAILY AV | <= 2.89 lb/d | all year |
| 001 | Chloroethane | DAILY MX | <= 7.74 lb/d | 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 | IC25 Low Flow Pass/Fail Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7 DA MIN | report only | all year |
| TX1 | IC25 Low Flow Pass/Fail Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | MO AV MN | report only | all year |
| TX1 | IC25 Low Flow Pass/Fail Lethal Static Renewal 7 Day Chronic Pimephales promelas | 7 DA MIN | report only | all year |
| TX1 | IC25 Low Flow Pass/Fail Lethal Static Renewal 7 Day Chronic Pimephales promelas | MO AV MN | report only | all year |
| TX1 | IC25 Low Flow Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7 DA MIN | report only | all year |
| TX1 | IC25 Low Flow Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | MO AV MN | report only | all year |
| TX1 | IC25 Low Flow Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 7 DA MIN | report only | all year |
| TX1 | IC25 Low Flow Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | MO AV MN | report only | all year |
| TX1 | IC25 Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7 DA MIN | report only | all year |
| TX1 | IC25 Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | MO AV MN | report only | all year |
| TX1 | IC25 Lethal Static Renewal 7 Day Chronic Pimephales promelas | 7 DA MIN | report only | all year |
| TX1 | IC25 Lethal Static Renewal 7 Day Chronic Pimephales promelas | MO AV MN | report only | all year |
| TX1 | IC25 Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7 DA MIN | report only | all year |
| TX1 | IC25 Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | MO AV MN | report only | all year |
| TX1 | IC25 Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 7 DA MIN | report only | all year |
| TX1 | IC25 Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | MO AV MN | report only | all year |
| TXA | LC50 Pass/Fail Static 24Hr Acute D. Pulex | SINGSAMP | report only | all year |
| TXA | LC50 Pass/Fail Static 24Hr Acute Pimephales promelas | SINGSAMP | report only | all year |
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