NPDES permit TX0047007 · Major POTW · administratively continued, expires 2025-05-26 · EPA's file as of 2026-09-19
Check this month's numbers before you fileThis permit expired on 2025-05-26 and is administratively continued: its last limits keep applying until a new permit is issued, and EPA still expects the reports.
Last period with anything received: 2026-07-31. Most often over: Whole Effluent Toxicity [WET] - C. dubia (2), Flow, in conduit or thru treatment plant (1), E. coli (1).
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 | pH | MINIMUM | >= 6 SU | all year |
| 001 | pH | MAXIMUM | <= 9 SU | all year |
| 001 | Solids, total suspended | DAILY AV | <= 15 mg/L | all year |
| 001 | Solids, total suspended | DAILY MX | <= 40 mg/L | all year |
| 001 | Solids, total suspended | DAILY AV | <= 375 lb/d | all year |
| 001 | Nitrogen, ammonia total [as N] | DAILY AV | <= 3 mg/L | all year |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 10 mg/L | all year |
| 001 | Nitrogen, ammonia total [as N] | DAILY AV | <= 75 lb/d | 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 | Chlorpyrifos | DAILY AV | <= .000046 mg/L | all year |
| 001 | Chlorpyrifos | DAILY MX | <= .000098 mg/L | all year |
| 001 | Chlorpyrifos | DAILY AV | <= .0012 lb/d | all year |
| 001 | Guthion | DAILY AV | <= .000011 mg/L | all year |
| 001 | Guthion | DAILY MX | <= .000024 mg/L | all year |
| 001 | Guthion | DAILY AV | <= .0003 lb/d | all year |
| 001 | Flow, in conduit or thru treatment plant | DAILY AV | report only | all year |
| 001 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 001 | Flow, in conduit or thru treatment plant | 2P | <= 6250 gal/min | all year |
| 001 | Flow, in conduit or thru treatment plant | ANNL AVG | <= 3 MGD | all year |
| 001 | Chlorine, total residual | INST MAX | < .1 mg/L | all year |
| 001 | Chlorine, total residual | MO MIN | >= 1 mg/L | all year |
| 001 | E. coli | DAILY AV | <= 120 CFU/100mL | all year |
| 001 | E. coli | DAILY MX | <= 379 CFU/100mL | 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 | report only | all year |
| 001 | Mercury, total [as Hg] | DAILY AV | report only | all year |
| 001 | Mercury, total [as Hg] | DAILY MX | report only | all year |
| 001 | Mercury, total [as Hg] | DAILY AV | report only | all year |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY AV | <= 10 mg/L | all year |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY MX | <= 25 mg/L | all year |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY AV | <= 250 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 | Whole Effluent Toxicity [WET] - C. dubia | 7 DA MIN | >= 100 % | all year |
| TX1 | Whole Effluent Toxicity [WET] - C. dubia | MO AV MN | >= 100 % | all year |
| TX1 | Whole Effluent Toxicity [WET] - P. promelas | 7 DA MIN | >= 100 % | all year |
| TX1 | Whole Effluent Toxicity [WET] - P. promelas | MO AV MN | >= 100 % | 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 AVG | 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