NPDES permit TX0112691 · Major NON-POTW · effective, expires 2026-11-15 · 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 (read off this permit's own late-day counts in EPA's filings).
| Outfall | Parameter | Statistic | Limit | Months |
|---|---|---|---|---|
| 001 | Oxygen, dissolved [DO] | MO MIN | >= 6 mg/L | all year |
| 001 | pH | MINIMUM | >= 6 SU | all year |
| 001 | pH | MAXIMUM | <= 9 SU | all year |
| 001 | Solids, total suspended | DAILY AV | report only | all year |
| 001 | Solids, total suspended | DAILY MX | <= 90 mg/L | all year |
| 001 | Nitrogen, ammonia total [as N] | DAILY AV | <= 1 mg/L | all year |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 2 mg/L | 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 | Aluminum, total [as Al] | DAILY AV | report only | all year |
| 001 | Aluminum, total [as Al] | DAILY MX | report only | all year |
| 001 | Selenium, total [as Se] | DAILY AV | <= .016 mg/L | all year |
| 001 | Selenium, total [as Se] | DAILY MX | <= .035 mg/L | all year |
| 001 | Flow, in conduit or thru treatment plant | DAILY AV | <= 8 MGD | all year |
| 001 | Flow, in conduit or thru treatment plant | DAILY MX | <= 8 MGD | all year |
| 001 | Inorganic suspended solids | DAILY AV | <= 72 mg/L | all year |
| 001 | Inorganic suspended solids | DAILY MX | <= 152 mg/L | all year |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY AV | <= 30 mg/L | all year |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY MX | <= 60 mg/L | all year |
| 002 | Oxygen, dissolved [DO] | MO MIN | >= 6 mg/L | all year |
| 002 | pH | MINIMUM | >= 6 SU | all year |
| 002 | pH | MAXIMUM | <= 9 SU | all year |
| 002 | Solids, total suspended | DAILY AV | report only | all year |
| 002 | Solids, total suspended | DAILY MX | <= 90 mg/L | all year |
| 002 | Nitrogen, ammonia total [as N] | DAILY AV | <= 1 mg/L | all year |
| 002 | Nitrogen, ammonia total [as N] | DAILY MX | <= 2 mg/L | all year |
| 002 | Copper, total [as Cu] | DAILY AV | report only | all year |
| 002 | Copper, total [as Cu] | DAILY MX | report only | all year |
| 002 | Aluminum, total [as Al] | DAILY AV | report only | all year |
| 002 | Aluminum, total [as Al] | DAILY MX | report only | all year |
| 002 | Selenium, total [as Se] | DAILY AV | <= .016 mg/L | all year |
| 002 | Selenium, total [as Se] | DAILY MX | <= .035 mg/L | all year |
| 002 | Flow, in conduit or thru treatment plant | DAILY AV | <= 8 MGD | all year |
| 002 | Flow, in conduit or thru treatment plant | DAILY MX | <= 8 MGD | all year |
| 002 | Enterococci | DAILY AV | report only | all year |
| 002 | Enterococci | DAILY MX | report only | all year |
| 002 | Inorganic suspended solids | DAILY AV | <= 72 mg/L | all year |
| 002 | Inorganic suspended solids | DAILY MX | <= 152 mg/L | all year |
| 002 | BOD, carbonaceous [5 day, 20 C] | DAILY AV | <= 30 mg/L | all year |
| 002 | BOD, carbonaceous [5 day, 20 C] | DAILY MX | <= 60 mg/L | all year |
| 003 | Oxygen, dissolved [DO] | MO MIN | >= 6 mg/L | all year |
| 003 | pH | MINIMUM | >= 6 SU | all year |
| 003 | pH | MAXIMUM | <= 9 SU | all year |
| 003 | Solids, total suspended | DAILY AV | report only | all year |
| 003 | Solids, total suspended | DAILY MX | <= 90 mg/L | all year |
| 003 | Nitrogen, ammonia total [as N] | DAILY AV | <= 1 mg/L | all year |
| 003 | Nitrogen, ammonia total [as N] | DAILY MX | <= 2 mg/L | all year |
| 003 | Copper, total [as Cu] | DAILY AV | report only | all year |
| 003 | Copper, total [as Cu] | DAILY MX | report only | all year |
| 003 | Aluminum, total [as Al] | DAILY AV | report only | all year |
| 003 | Aluminum, total [as Al] | DAILY MX | report only | all year |
| 003 | Selenium, total [as Se] | DAILY AV | <= .016 mg/L | all year |
| 003 | Selenium, total [as Se] | DAILY MX | <= .035 mg/L | all year |
| 003 | Flow, in conduit or thru treatment plant | DAILY AV | <= 8 MGD | all year |
| 003 | Flow, in conduit or thru treatment plant | DAILY MX | <= 8 MGD | all year |
| 003 | Inorganic suspended solids | DAILY AV | <= 72 mg/L | all year |
| 003 | Inorganic suspended solids | DAILY MX | <= 152 mg/L | all year |
| 003 | BOD, carbonaceous [5 day, 20 C] | DAILY AV | <= 30 mg/L | all year |
| 003 | BOD, carbonaceous [5 day, 20 C] | DAILY MX | <= 60 mg/L | all year |
| 004 | Oxygen, dissolved [DO] | MO MIN | >= 6 mg/L | all year |
| 004 | pH | MINIMUM | >= 6 SU | all year |
| 004 | pH | MAXIMUM | <= 9 SU | all year |
| 004 | Solids, total suspended | DAILY AV | report only | all year |
| 004 | Solids, total suspended | DAILY MX | <= 90 mg/L | all year |
| 004 | Nitrogen, ammonia total [as N] | DAILY AV | <= 1 mg/L | all year |
| 004 | Nitrogen, ammonia total [as N] | DAILY MX | <= 2 mg/L | all year |
| 004 | Copper, total [as Cu] | DAILY AV | report only | all year |
| 004 | Copper, total [as Cu] | DAILY MX | report only | all year |
| 004 | Selenium, total [as Se] | DAILY AV | <= .016 mg/L | all year |
| 004 | Selenium, total [as Se] | DAILY MX | <= .035 mg/L | all year |
| 004 | Flow, in conduit or thru treatment plant | DAILY AV | <= 8 MGD | all year |
| 004 | Flow, in conduit or thru treatment plant | DAILY MX | <= 8 MGD | all year |
| 004 | Inorganic suspended solids | DAILY AV | <= 72 mg/L | all year |
| 004 | Inorganic suspended solids | DAILY MX | <= 152 mg/L | all year |
| 004 | BOD, carbonaceous [5 day, 20 C] | DAILY AV | <= 30 mg/L | all year |
| 004 | BOD, carbonaceous [5 day, 20 C] | DAILY MX | <= 60 mg/L | 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 |
| 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 menidia | 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