NPDES permit TX0001465 · Major NON-POTW · effective, expires 2029-12-17 · EPA's file as of 2026-09-19
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Last period with anything received: 2026-07-31. Most often over: Sulfate, total [as SO4] (2).
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 MX | <= 104 deg F | all year |
| 001 | Oxygen demand, chem. [high level] [COD] | DAILY AV | <= 100 mg/L | all year |
| 001 | Oxygen demand, chem. [high level] [COD] | DAILY MX | <= 150 mg/L | all year |
| 001 | pH | MINIMUM | >= 6 SU | all year |
| 001 | pH | MAXIMUM | <= 9.5 SU | all year |
| 001 | Solids, total suspended | DAILY AV | <= 44.4 lb/d | all year |
| 001 | Solids, total suspended | DAILY MX | <= 66.8 lb/d | all year |
| 001 | Oil & Grease | DAILY AV | <= 12.6 lb/d | all year |
| 001 | Oil & Grease | DAILY MX | <= 18.6 lb/d | all year |
| 001 | Nitrogen, ammonia total [as N] | DAILY AV | <= 2.5 mg/L | all year |
| 001 | Cyanide, total [as CN] | DAILY MX | <= .0341 mg/L | all year |
| 001 | Sulfate, total [as SO4] | DAILY AV | <= 603 mg/L | all year |
| 001 | Sulfate, total [as SO4] | DAILY MX | <= 1276 mg/L | all year |
| 001 | Cadmium, total [as Cd] | DAILY MX | <= .0024 mg/L | all year |
| 001 | Copper, total [as Cu] | DAILY AV | <= .0192 mg/L | all year |
| 001 | Copper, total [as Cu] | DAILY MX | <= .0408 mg/L | all year |
| 001 | Lead, total [as Pb] | DAILY AV | <= .0117 mg/L | all year |
| 001 | Lead, total [as Pb] | DAILY MX | <= .0248 mg/L | all year |
| 001 | Zinc, total [as Zn] | DAILY AV | <= .211 mg/L | all year |
| 001 | Zinc, total [as Zn] | DAILY MX | <= .448 mg/L | all year |
| 001 | Aluminum, total [as Al] | DAILY AV | <= .834 mg/L | all year |
| 001 | Aluminum, total [as Al] | DAILY MX | <= 1.76 mg/L | all year |
| 001 | Phenols | DAILY AV | <= .553 mg/L | all year |
| 001 | Phenols | DAILY MX | <= 1.17 mg/L | all year |
| 001 | Flow, in conduit or thru treatment plant | DAILY AV | <= .72 MGD | all year |
| 001 | Flow, in conduit or thru treatment plant | DAILY MX | <= 1.44 MGD | all year |
| 001 | E. coli | DAILY AV | <= 126 CFU/100mL | all year |
| 001 | E. coli | DAILY MX | <= 399 CFU/100mL | all year |
| 001 | Solids, total dissolved | DAILY MX | <= 1500 mg/L | all year |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY AV | <= 12 mg/L | all year |
| 002 | BOD, 5-day, 20 deg. C | DAILY AV | <= 30 mg/L | all year |
| 002 | BOD, 5-day, 20 deg. C | DAILY MX | <= 70 mg/L | all year |
| 002 | pH | MINIMUM | >= 6 SU | all year |
| 002 | pH | MAXIMUM | <= 9 SU | all year |
| 002 | Solids, total suspended | DAILY AV | <= 90 mg/L | all year |
| 002 | Solids, total suspended | DAILY MX | <= 180 mg/L | all year |
| 002 | Flow, in conduit or thru treatment plant | DAILY AV | <= .06 MGD | all year |
| 002 | Flow, in conduit or thru treatment plant | DAILY MX | <= .144 MGD | all year |
| 002 | E. coli | DAILY AV | <= 126 CFU/100mL | all year |
| 002 | E. coli | DAILY MX | <= 399 CFU/100mL | all year |
| 003 | Oxygen demand, chem. [high level] [COD] | DAILY MX | <= 400 mg/L | 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 | Copper, total [as Cu] | DAILY MX | <= .4 mg/L | all year |
| 003 | Lead, total [as Pb] | DAILY MX | <= 1.5 mg/L | all year |
| 003 | Zinc, total [as Zn] | DAILY MX | <= 3 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 |
| 004 | Oxygen demand, chem. [high level] [COD] | DAILY MX | <= 400 mg/L | all year |
| 004 | pH | MINIMUM | >= 6 SU | all year |
| 004 | pH | MAXIMUM | <= 9 SU | all year |
| 004 | Oil & Grease | DAILY MX | <= 15 mg/L | all year |
| 004 | Copper, total [as Cu] | DAILY MX | <= .4 mg/L | all year |
| 004 | Lead, total [as Pb] | DAILY MX | <= 1.5 mg/L | all year |
| 004 | Zinc, total [as Zn] | DAILY MX | <= 3 mg/L | all year |
| 004 | Flow, in conduit or thru treatment plant | DAILY AV | report only | all year |
| 004 | 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 | Whole Effluent Toxicity [WET] - C. dubia | 7 DA MIN | >= 64 % | all year |
| TX1 | Whole Effluent Toxicity [WET] - C. dubia | MO AV MN | >= 64 % | all year |
| TX1 | Whole Effluent Toxicity [WET] - P. promelas | 7 DA MIN | >= 64 % | all year |
| TX1 | Whole Effluent Toxicity [WET] - P. promelas | MO AV MN | >= 64 % | all year |
| TX1 | Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7 DA MIN | report only | all year |
| TX1 | Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | MO AV MN | report only | all year |
| TX1 | Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | 7 DA MIN | report only | all year |
| TX1 | Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | MO AV MN | report only | all year |
| TX1 | NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7 DA MIN | report only | all year |
| TX1 | NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | MO AV MN | report only | all year |
| TX1 | NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | 7 DA MIN | report only | all year |
| TX1 | NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | MO AV MN | report only | all year |
| TX1 | NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7 DA MIN | report only | all year |
| TX1 | NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | MO AV MN | report only | all year |
| TX1 | NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 7 DA MIN | report only | all year |
| TX1 | NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | MO AV MN | report only | all year |
| TX1 | Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7 DA MIN | report only | all year |
| TX1 | Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | MO AV MN | report only | all year |
| TX1 | Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelas | 7 DA MIN | report only | all year |
| TX1 | Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelas | MO AV MN | report only | all year |
| TX1 | LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7 DA MIN | report only | all year |
| TX1 | LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia | MO AV MN | report only | all year |
| TX1 | LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas | 7 DA MIN | report only | all year |
| TX1 | LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas | MO AV MN | report only | all year |
| TX1 | LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7 DA MIN | report only | all year |
| TX1 | LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia | MO AV MN | report only | all year |
| TX1 | LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas | 7 DA MIN | report only | all year |
| TX1 | LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas | MO AV MN | report only | all year |
| TXA | Whole effluent toxicity - retest #1 | SINGSAMP | report only | all year |
| TXA | Whole effluent toxicity - retest #2 | SINGSAMP | 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 |
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