NPDES permit TX0006696 · Major NON-POTW · effective, expires 2030-05-02 · EPA's file as of 2026-09-19
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Last period with anything received: 2026-07-31. Most often over: Oil & Grease (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 | Temperature, water deg. fahrenheit | DAILY AV | <= 100 deg F | all year |
| 001 | Temperature, water deg. fahrenheit | DAILY MX | <= 106 deg F | 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 | Flow, in conduit or thru treatment plant | DAILY AV | <= 1306 MGD | all year |
| 001 | Flow, in conduit or thru treatment plant | DAILY MX | <= 1306 MGD | all year |
| 001 | Chlorine, total residual | DAILY MX | <= .2 mg/L | all year |
| 001 | Chlorine, total residual | DAILY MX | <= 182 lb/d | all year |
| 001 | Chlorine, free available | DAILY AV | <= .2 mg/L | all year |
| 001 | Chlorine, free available | DAILY MX | <= .5 mg/L | all year |
| 001 | Chlorine, free available | DAILY AV | <= 182 lb/d | all year |
| 001 | Chlorine, free available | DAILY MX | <= 454 lb/d | all year |
| 201 | pH | MINIMUM | >= 6 SU | all year |
| 201 | pH | MAXIMUM | <= 9 SU | all year |
| 201 | Solids, total suspended | DAILY AV | <= 30 mg/L | all year |
| 201 | Solids, total suspended | DAILY MX | <= 100 mg/L | all year |
| 201 | Oil & Grease | DAILY AV | <= 15 mg/L | all year |
| 201 | Oil & Grease | DAILY MX | <= 20 mg/L | all year |
| 201 | Flow, in conduit or thru treatment plant | DAILY AV | report only | all year |
| 201 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 301 | Oxygen demand, chem. [high level] [COD] | DAILY MX | <= 200 mg/L | all year |
| 301 | pH | MINIMUM | >= 6 SU | all year |
| 301 | pH | MAXIMUM | <= 9 SU | all year |
| 301 | Solids, total suspended | DAILY AV | <= 30 mg/L | all year |
| 301 | Solids, total suspended | DAILY MX | <= 100 mg/L | all year |
| 301 | Oil & Grease | DAILY AV | <= 15 mg/L | all year |
| 301 | Oil & Grease | DAILY MX | <= 20 mg/L | all year |
| 301 | Flow, in conduit or thru treatment plant | DAILY AV | report only | all year |
| 301 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 401 | Solids, total suspended | DAILY AV | <= 30 mg/L | all year |
| 401 | Solids, total suspended | DAILY MX | <= 100 mg/L | all year |
| 401 | Oil & Grease | DAILY AV | <= 15 mg/L | all year |
| 401 | Oil & Grease | DAILY MX | <= 20 mg/L | all year |
| 401 | Copper, total [as Cu] | DAILY AV | <= .5 mg/L | all year |
| 401 | Copper, total [as Cu] | DAILY MX | <= 1 mg/L | all year |
| 401 | Iron, total [as Fe] | DAILY AV | <= 1 mg/L | all year |
| 401 | Iron, total [as Fe] | DAILY MX | <= 1 mg/L | all year |
| 401 | Flow, in conduit or thru treatment plant | DAILY AV | report only | all year |
| 401 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 501 | pH | MINIMUM | >= 6 SU | all year |
| 501 | pH | MAXIMUM | <= 9 SU | all year |
| 501 | Solids, total suspended | DAILY AV | <= 30 mg/L | all year |
| 501 | Solids, total suspended | DAILY MX | <= 100 mg/L | all year |
| 501 | Oil & Grease | DAILY AV | <= 15 mg/L | all year |
| 501 | Oil & Grease | DAILY MX | <= 20 mg/L | all year |
| 501 | Flow, in conduit or thru treatment plant | DAILY AV | report only | all year |
| 501 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 601 | pH | MINIMUM | >= 6 SU | all year |
| 601 | pH | MAXIMUM | <= 9 SU | all year |
| 601 | Chromium, total [as Cr] | DAILY AV | <= .2 mg/L | all year |
| 601 | Chromium, total [as Cr] | DAILY MX | <= .2 mg/L | all year |
| 601 | Zinc, total [as Zn] | DAILY AV | <= 1 mg/L | all year |
| 601 | Zinc, total [as Zn] | DAILY MX | <= 1 mg/L | all year |
| 601 | Flow, in conduit or thru treatment plant | DAILY AV | report only | all year |
| 601 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 601 | Chlorine, free available | DAILY AV | <= .2 mg/L | all year |
| 601 | Chlorine, free available | DAILY MX | <= .5 mg/L | all year |
| 801 | BOD, 5-day, 20 deg. C | DAILY AV | <= 20 mg/L | all year |
| 801 | BOD, 5-day, 20 deg. C | DAILY MX | <= 45 mg/L | all year |
| 801 | pH | MINIMUM | >= 6 SU | all year |
| 801 | pH | MAXIMUM | <= 9 SU | all year |
| 801 | Solids, total suspended | DAILY AV | <= 20 mg/L | all year |
| 801 | Solids, total suspended | DAILY MX | <= 45 mg/L | all year |
| 801 | Flow, in conduit or thru treatment plant | DAILY AV | report only | all year |
| 801 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 801 | Chlorine, total residual | MO MIN | >= 1 mg/L | all year |
| 801 | Enterococci | DAILY MX | <= 89 CFU/100mL | 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 |
| TX2 | Whole effluent toxicity - retest #1 | 7 DA MIN | report only | all year |
| TX2 | Whole effluent toxicity - retest #1 | MO AV MN | report only | all year |
| TX2 | Whole effluent toxicity - retest #2 | 7 DA MIN | report only | all year |
| TX2 | Whole effluent toxicity - retest #2 | MO AV MN | report only | all year |
| TX2 | Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia) | 7 DA MIN | report only | all year |
| TX2 | Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia) | MO AV MN | report only | all year |
| TX2 | Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia beryllina | 7 DA MIN | report only | all year |
| TX2 | Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia beryllina | MO AV MN | report only | all year |
| TX2 | NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 7 DA MIN | report only | all year |
| TX2 | NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | MO AV MN | report only | all year |
| TX2 | NOEC Lethal Static Renewal 7 Day Chronic Menidia beryllina | 7 DA MIN | report only | all year |
| TX2 | NOEC Lethal Static Renewal 7 Day Chronic Menidia beryllina | MO AV MN | report only | all year |
| TX2 | NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 7 DA MIN | report only | all year |
| TX2 | NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | MO AV MN | report only | all year |
| TX2 | NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllina | 7 DA MIN | report only | all year |
| TX2 | NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllina | MO AV MN | report only | all year |
| TX2 | Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 7 DA MIN | report only | all year |
| TX2 | Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | MO AV MN | report only | all year |
| TX2 | Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllina | 7 DA MIN | report only | all year |
| TX2 | Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllina | MO AV MN | report only | all year |
| TX2 | LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 7 DA MIN | report only | all year |
| TX2 | LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | MO AV MN | report only | all year |
| TX2 | LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia beryllina | 7 DA MIN | report only | all year |
| TX2 | LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia beryllina | MO AV MN | report only | all year |
| TX2 | LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia) | 7 DA MIN | report only | all year |
| TX2 | LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia) | MO AV MN | report only | all year |
| TX2 | LOEC Sub-Lethal Growth Static Renewal 7 Day Chronic Menidia beryllina | 7 DA MIN | report only | all year |
| TX2 | LOEC Sub-Lethal Growth Static Renewal 7 Day Chronic Menidia beryllina | 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 Americamysis bahia (formerly Mysidopsis bahia) | SINGSAMP | report only | all year |
| TXA | LC50 Pass/Fail Static 24Hr Acute Menidia beryllina | SINGGRAB | report only | all year |
| TXB | Whole effluent toxicity - retest #1 | SINGSAMP | report only | all year |
| TXB | Whole effluent toxicity - retest #2 | SINGSAMP | report only | all year |
| TXB | LC50 Pass/Fail Static 24Hr Acute Americamysis bahia (formerly Mysidopsis bahia) | SINGSAMP | report only | all year |
| TXB | LC50 Pass/Fail Static 24Hr Acute Menidia beryllina | SINGGRAB | 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