NPDES permit TX0007536 · Major NON-POTW · administratively continued, expires 2024-08-02 · EPA's file as of 2026-09-19
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This permit expired on 2024-08-02 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: pH (4), pH range excursions, > 60 minutes (2).
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 |
|---|---|---|---|---|
| 002 | pH | MINIMUM | >= 6 SU | all year |
| 002 | pH | MAXIMUM | <= 9 SU | all year |
| 002 | Oil & Grease | DAILY MX | <= 15 mg/L | all year |
| 002 | Carbon, tot organic [TOC] | DAILY MX | <= 70 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 |
| 003 | pH | MINIMUM | >= 6 SU | all year |
| 003 | pH | MAXIMUM | <= 9 SU | all year |
| 003 | Oil & Grease | DAILY MX | <= 15 mg/L | all year |
| 003 | Carbon, tot organic [TOC] | DAILY MX | <= 70 mg/L | all year |
| 003 | Flow, in conduit or thru treatment plant | DAILY AV | report only | all year |
| 003 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 005 | pH | MINIMUM | >= 6 SU | all year |
| 005 | pH | MAXIMUM | <= 9 SU | all year |
| 005 | Oil & Grease | DAILY MX | <= 15 mg/L | all year |
| 005 | Carbon, tot organic [TOC] | DAILY MX | <= 55 mg/L | all year |
| 005 | Flow, in conduit or thru treatment plant | DAILY AV | report only | all year |
| 005 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 006 | pH | MINIMUM | >= 6 SU | all year |
| 006 | pH | MAXIMUM | <= 9 SU | all year |
| 006 | Oil & Grease | DAILY MX | <= 15 mg/L | all year |
| 006 | Carbon, tot organic [TOC] | DAILY MX | <= 75 mg/L | all year |
| 006 | Flow, in conduit or thru treatment plant | DAILY AV | report only | all year |
| 006 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 009 | pH | MINIMUM | >= 6 SU | all year |
| 009 | pH | MAXIMUM | <= 9 SU | all year |
| 009 | Oil & Grease | DAILY MX | <= 15 mg/L | all year |
| 009 | Carbon, tot organic [TOC] | DAILY MX | <= 75 mg/L | all year |
| 009 | Flow, in conduit or thru treatment plant | DAILY AV | report only | all year |
| 009 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 010 | pH | MINIMUM | >= 6 SU | all year |
| 010 | pH | MAXIMUM | <= 9 SU | all year |
| 010 | Oil & Grease | DAILY MX | <= 15 mg/L | all year |
| 010 | Carbon, tot organic [TOC] | DAILY MX | <= 75 mg/L | all year |
| 010 | Flow, in conduit or thru treatment plant | DAILY AV | report only | all year |
| 010 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 011 | Oxygen, dissolved [DO] | MO MIN | >= 2 mg/L | all year |
| 011 | BOD, 5-day, 20 deg. C | DAILY AV | report only | all year |
| 011 | BOD, 5-day, 20 deg. C | DAILY AV | <= 2700 lb/d | all year |
| 011 | BOD, 5-day, 20 deg. C | DAILY MX | <= 5063 lb/d | all year |
| 011 | Oxygen demand, chem. [high level] [COD] | DAILY AV | <= 16992 lb/d | all year |
| 011 | Oxygen demand, chem. [high level] [COD] | DAILY MX | <= 33079 lb/d | all year |
| 011 | pH | MINIMUM | >= 6 SU | all year |
| 011 | pH | MAXIMUM | <= 9 SU | all year |
| 011 | Solids, total suspended | DAILY AV | <= 2707 lb/d | all year |
| 011 | Solids, total suspended | DAILY MX | <= 5474 lb/d | all year |
| 011 | Oil & Grease | DAILY AV | <= 1108 lb/d | all year |
| 011 | Oil & Grease | DAILY MX | <= 1894 lb/d | all year |
| 011 | Nitrogen, ammonia total [as N] | DAILY AV | <= 555 lb/d | all year |
| 011 | Nitrogen, ammonia total [as N] | DAILY MX | <= 2310.9 lb/d | all year |
| 011 | Cyanide, free [amenable to chlorination] | DAILY AV | <= .0087 mg/L | all year |
| 011 | Cyanide, free [amenable to chlorination] | DAILY MX | <= .0186 mg/L | all year |
| 011 | Sulfide, total [as S] | DAILY AV | <= 15.7 lb/d | all year |
| 011 | Sulfide, total [as S] | DAILY MX | <= 33.9 lb/d | all year |
| 011 | Chromium, hexavalent [as Cr] | DAILY AV | <= 13.3 lb/d | all year |
| 011 | Chromium, hexavalent [as Cr] | DAILY MX | <= 27.2 lb/d | all year |
| 011 | Chromium, total [as Cr] | DAILY AV | <= 38.4 lb/d | all year |
| 011 | Chromium, total [as Cr] | DAILY MX | <= 90.1 lb/d | all year |
| 011 | Zinc, total [as Zn] | DAILY AV | report only | all year |
| 011 | Zinc, total [as Zn] | DAILY MX | report only | all year |
| 011 | Selenium, total [as Se] | DAILY AV | report only | all year |
| 011 | Selenium, total [as Se] | DAILY MX | report only | all year |
| 011 | Flow, in conduit or thru treatment plant | DAILY AV | <= 9.5 MGD | all year |
| 011 | Flow, in conduit or thru treatment plant | DAILY MX | <= 12.5 MGD | all year |
| 011 | Enterococci | DAILY AV | <= 35 CFU/100mL | all year |
| 011 | Enterococci | DAILY MX | <= 104 CFU/100mL | all year |
| 011 | Phenolic compounds, total | DAILY AV | <= 16 lb/d | all year |
| 011 | Phenolic compounds, total | DAILY MX | <= 33.2 lb/d | all year |
| 011 | Mercury, total [as Hg] | DAILY MX | report only | all year |
| 011 | pH range excursions, > 60 minutes | MO TOTAL | <= 0 occur/mo | all year |
| 011 | pH range excursions, monthly total accum | MO TOTAL | <= 446 min | all year |
| 012 | pH | MINIMUM | >= 6 SU | all year |
| 012 | pH | MAXIMUM | <= 9 SU | all year |
| 012 | Oil & Grease | DAILY MX | <= 15 mg/L | all year |
| 012 | Carbon, tot organic [TOC] | DAILY MX | <= 70 mg/L | all year |
| 012 | Flow, in conduit or thru treatment plant | DAILY AV | report only | all year |
| 012 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 013 | Temperature, water deg. fahrenheit | DAILY MX | report only | all year |
| 013 | Sulfate [as S] | DAILY AV | report only | all year |
| 013 | Sulfate [as S] | DAILY MX | report only | all year |
| 013 | pH | MINIMUM | >= 6 SU | all year |
| 013 | pH | MAXIMUM | <= 9 SU | all year |
| 013 | Oil & Grease | DAILY AV | <= 10 mg/L | all year |
| 013 | Oil & Grease | DAILY MX | <= 15 mg/L | all year |
| 013 | Carbon, tot organic [TOC] | DAILY AV | <= 50 mg/L | all year |
| 013 | Carbon, tot organic [TOC] | DAILY MX | <= 75 mg/L | all year |
| 013 | Flow, in conduit or thru treatment plant | DAILY AV | <= .216 MGD | all year |
| 013 | Flow, in conduit or thru treatment plant | DAILY MX | <= .64 MGD | all year |
| TX11 | Whole effluent toxicity - retest #1 | 7 DA MIN | report only | all year |
| TX11 | Whole effluent toxicity - retest #1 | MO AV MN | report only | all year |
| TX11 | Whole effluent toxicity - retest #2 | 7 DA MIN | report only | all year |
| TX11 | Whole effluent toxicity - retest #2 | MO AV MN | report only | all year |
| TX11 | Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia) | 7 DA MIN | report only | all year |
| TX11 | Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia) | MO AV MN | report only | all year |
| TX11 | Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia beryllina | 7 DA MIN | report only | all year |
| TX11 | Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia beryllina | MO AV MN | report only | all year |
| TX11 | NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 7 DA MIN | report only | all year |
| TX11 | NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | MO AV MN | report only | all year |
| TX11 | NOEC Lethal Static Renewal 7 Day Chronic Menidia beryllina | 7 DA MIN | report only | all year |
| TX11 | NOEC Lethal Static Renewal 7 Day Chronic Menidia beryllina | MO AV MN | report only | all year |
| TX11 | NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 7 DA MIN | report only | all year |
| TX11 | NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | MO AV MN | report only | all year |
| TX11 | NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllina | 7 DA MIN | report only | all year |
| TX11 | NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllina | MO AV MN | report only | all year |
| TX11 | Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 7 DA MIN | report only | all year |
| TX11 | Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | MO AV MN | report only | all year |
| TX11 | Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllina | 7 DA MIN | report only | all year |
| TX11 | Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllina | MO AV MN | report only | all year |
| TX11 | LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 7 DA MIN | report only | all year |
| TX11 | LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | MO AV MN | report only | all year |
| TX11 | LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia beryllina | 7 DA MIN | report only | all year |
| TX11 | LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia beryllina | MO AV MN | report only | all year |
| TX11 | LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia) | 7 DA MIN | report only | all year |
| TX11 | LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia) | MO AV MN | report only | all year |
| TX11 | LOEC Sub-Lethal Growth Static Renewal 7 Day Chronic Menidia beryllina | 7 DA MIN | report only | all year |
| TX11 | LOEC Sub-Lethal Growth Static Renewal 7 Day Chronic Menidia beryllina | MO AV MN | report only | all year |
| TXK | LC50 Pass/Fail Static 24Hr Acute Americamysis bahia (formerly Mysidopsis bahia) | SINGSAMP | report only | all year |
| TXK | LC50 Pass/Fail Static 24Hr Acute Menidia beryllina | SINGSAMP | report only | all year |
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