NPDES permit TX0105481 · Major NON-POTW · administratively continued, expires 2024-07-24 · EPA's file as of 2026-09-19
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This permit expired on 2024-07-24 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] - Americamysis bahia (formerly Mysidopsis bahia) (7).
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 demand, chem. [high level] [COD] | DAILY AV | <= 150 mg/L | all year |
| 001 | Oxygen demand, chem. [high level] [COD] | DAILY MX | <= 200 mg/L | all year |
| 001 | Oxygen demand, chem. [high level] [COD] | DAILY AV | <= 598 lb/d | all year |
| 001 | Oxygen demand, chem. [high level] [COD] | DAILY MX | <= 798 lb/d | all year |
| 001 | pH | MINIMUM | >= 6 SU | all year |
| 001 | pH | MAXIMUM | <= 9 SU | all year |
| 001 | Solids, total suspended | DAILY AV | <= 30 mg/L | all year |
| 001 | Solids, total suspended | DAILY MX | <= 100 mg/L | all year |
| 001 | Solids, total suspended | DAILY AV | <= 120 lb/d | all year |
| 001 | Solids, total suspended | DAILY MX | <= 399 lb/d | all year |
| 001 | Oil & Grease | DAILY AV | <= 10 mg/L | all year |
| 001 | Oil & Grease | DAILY MX | <= 15 mg/L | all year |
| 001 | Oil & Grease | DAILY AV | <= 40 lb/d | all year |
| 001 | Oil & Grease | DAILY MX | <= 60 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 | <= 12 lb/d | all year |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 40 lb/d | all year |
| 001 | Sulfide, total [as S] | DAILY AV | <= .22 mg/L | all year |
| 001 | Sulfide, total [as S] | DAILY MX | <= .44 mg/L | all year |
| 001 | Sulfide, total [as S] | DAILY AV | <= .88 lb/d | all year |
| 001 | Sulfide, total [as S] | DAILY MX | <= 1.76 lb/d | all year |
| 001 | Copper, total [as Cu] | DAILY AV | <= .013 mg/L | all year |
| 001 | Copper, total [as Cu] | DAILY MX | <= .028 mg/L | all year |
| 001 | Zinc, total [as Zn] | DAILY AV | <= .08 mg/L | all year |
| 001 | Zinc, total [as Zn] | DAILY MX | <= .16 mg/L | all year |
| 001 | Selenium, total [as Se] | DAILY AV | <= .02 mg/L | all year |
| 001 | Selenium, total [as Se] | DAILY MX | <= .04 mg/L | all year |
| 001 | Chlorine, total residual | DAILY AV | report only | all year |
| 001 | Chlorine, total residual | DAILY MX | report only | all year |
| 001 | Chlorine, total residual | DAILY AV | report only | all year |
| 001 | Chlorine, total residual | DAILY MX | report only | all year |
| 001 | Flow [dry weather] | DAILY AV | <= .478 MGD | all year |
| 001 | Flow [dry weather] | DAILY MX | <= 1.13 MGD | all year |
| 001 | Cyanide, free available | DAILY AV | <= .003 mg/L | all year |
| 001 | Cyanide, free available | DAILY MX | <= .006 mg/L | all year |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY AV | <= 15 mg/L | all year |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY MX | <= 30 mg/L | all year |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY AV | <= 60 lb/d | all year |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY MX | <= 120 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] - M. beryllina | 7 DA MIN | >= 80 % | all year |
| TX1 | Whole Effluent Toxicity [WET] - M. beryllina | MO AV MN | >= 80 % | all year |
| TX1 | Whole Effluent Toxicity [WET] - M. beryllina | 7 DA MIN | >= 100 % | all year |
| TX1 | Whole Effluent Toxicity [WET] - M. beryllina | MO AV MN | >= 100 % | all year |
| TX1 | Whole Effluent Toxicity [WET] - Americamysis bahia (formerly Mysidopsis bahia) | 7 DA MIN | >= 80 % | all year |
| TX1 | Whole Effluent Toxicity [WET] - Americamysis bahia (formerly Mysidopsis bahia) | MO AV MN | >= 80 % | all year |
| TX1 | Whole Effluent Toxicity [WET] - Americamysis bahia (formerly Mysidopsis bahia) | 7 DA MIN | >= 100 % | all year |
| TX1 | Whole Effluent Toxicity [WET] - Americamysis bahia (formerly Mysidopsis bahia) | MO AV MN | >= 100 % | all year |
| TX1 | IC25 Low Flow Pass/Fail Lethal Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia) | 7 DA MIN | report only | all year |
| TX1 | IC25 Low Flow Pass/Fail Lethal Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia) | MO AV MN | report only | all year |
| TX1 | IC25 Low Flow Pass/Fail Lethal Static Renewal 7 Day Chronic Menidia beryllina | 7 DA MIN | report only | all year |
| TX1 | IC25 Low Flow Pass/Fail Lethal Static Renewal 7 Day Chronic Menidia beryllina | MO AV MN | report only | all year |
| TX1 | IC25 Low Flow Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (M. bahia) | 7 DA MIN | report only | all year |
| TX1 | IC25 Low Flow Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (M. bahia) | MO AV MN | report only | all year |
| TX1 | IC25 Low Flow Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllina | 7 DA MIN | report only | all year |
| TX1 | IC25 Low Flow Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllina | MO AV MN | report only | all year |
| TX1 | IC25 Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 7 DA MIN | report only | all year |
| TX1 | IC25 Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | MO AV MN | report only | all year |
| TX1 | IC25 Lethal Static Renewal 7 Day Chronic Menidia beryllina | 7 DA MIN | report only | all year |
| TX1 | IC25 Lethal Static Renewal 7 Day Chronic Menidia beryllina | MO AV MN | report only | all year |
| TX1 | IC25 Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 7 DA MIN | report only | all year |
| TX1 | IC25 Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | MO AV MN | report only | all year |
| TX1 | IC25 Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllina | 7 DA MIN | report only | all year |
| TX1 | IC25 Sub-Lethal 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 | Whole Effluent Toxicity [WET] - Americamysis bahia (formerly Mysidopsis bahia) | SINGSAMP | <= 100 % | 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 | 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