NPDES permit TX0124419 · Major NON-POTW · effective, expires 2027-04-08 · EPA's file as of 2026-09-19
Check this month's numbers before you fileSign-ups are not open yet. We counted that someone asked — not who, and not which permit — and we open them once enough people do. The check stays free.
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 | report only | all year |
| 001 | Temperature, water deg. fahrenheit | DAILY MX | report only | all year |
| 001 | Oxygen, dissolved [DO] | MO MIN | >= 4 mg/L | all year |
| 001 | pH | MINIMUM | >= 6 SU | all year |
| 001 | pH | MAXIMUM | <= 9 SU | all year |
| 001 | Nitrogen, ammonia total [as N] | DAILY AV | report only | Apr, May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | Nitrogen, ammonia total [as N] | DAILY AV | report only | Jan, Feb, Mar, Dec |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | report only | Apr, May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | report only | Jan, Feb, Mar, Dec |
| 001 | Nitrogen, ammonia total [as N] | DAILY AV | <= 67 lb/d | Apr, May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | Nitrogen, ammonia total [as N] | DAILY AV | <= 167 lb/d | Jan, Feb, Mar, Dec |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 234 lb/d | Apr, May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 334 lb/d | Jan, Feb, Mar, Dec |
| 001 | Chloride [as Cl] | DAILY AV | report only | all year |
| 001 | Chloride [as Cl] | DAILY MX | report only | all year |
| 001 | Chloride [as Cl] | DAILY AV | report only | all year |
| 001 | Chloride [as Cl] | DAILY MX | report only | all year |
| 001 | Sulfate, total [as SO4] | DAILY AV | report only | all year |
| 001 | Sulfate, total [as SO4] | DAILY MX | report only | all year |
| 001 | Sulfate, total [as SO4] | DAILY AV | report only | all year |
| 001 | Sulfate, total [as SO4] | DAILY MX | report only | all year |
| 001 | Chromium, total [as Cr] | DAILY AV | <= .2 mg/L | all year |
| 001 | Chromium, total [as Cr] | DAILY MX | <= .2 mg/L | all year |
| 001 | Chromium, total [as Cr] | DAILY AV | <= 4.09 lb/d | all year |
| 001 | Chromium, total [as Cr] | DAILY MX | <= 4.09 lb/d | all year |
| 001 | Copper, total [as Cu] | DAILY AV | report only | all year |
| 001 | Copper, total [as Cu] | DAILY MX | report only | all year |
| 001 | Copper, total [as Cu] | DAILY AV | report only | all year |
| 001 | Copper, total [as Cu] | DAILY MX | report only | all year |
| 001 | Zinc, total [as Zn] | DAILY AV | <= 1 mg/L | all year |
| 001 | Zinc, total [as Zn] | DAILY MX | <= 1 mg/L | all year |
| 001 | Zinc, total [as Zn] | DAILY AV | <= 20.45 lb/d | all year |
| 001 | Zinc, total [as Zn] | DAILY MX | <= 20.45 lb/d | all year |
| 001 | Flow, in conduit or thru treatment plant | DAILY AV | <= 4 MGD | all year |
| 001 | Flow, in conduit or thru treatment plant | DAILY MX | <= 6 MGD | all year |
| 001 | Chlorine, total residual | DAILY MX | <= .1 mg/L | all year |
| 001 | Solids, total dissolved | DAILY AV | report only | all year |
| 001 | Solids, total dissolved | DAILY MX | report only | all year |
| 001 | Solids, total dissolved | DAILY AV | <= 70437 lb/d | all year |
| 001 | Solids, total dissolved | DAILY MX | <= 149016 lb/d | all year |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY AV | report only | all year |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY MX | report only | all year |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY AV | <= 334 lb/d | all year |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY MX | <= 668 lb/d | all year |
| 002 | Oxygen demand, chem. [high level] [COD] | DAILY MX | <= 150 mg/L | all year |
| 002 | pH | MINIMUM | >= 6 SU | all year |
| 002 | pH | MAXIMUM | <= 9 SU | all year |
| 002 | Solids, total suspended | DAILY MX | <= 100 mg/L | all year |
| 002 | Oil & Grease | DAILY MX | <= 15 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 |
| TX1 | Whole effluent toxicity - retest #1 | 7 DA MIN | 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 #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 | 7 DA MIN | report only | all year |
| TX1 | Whole effluent toxicity - retest #2 | MO AV MN | 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 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