NPDES TX0023647 · Clean Water Act
PORT ISABEL WWTP, Port Isabel, TX: NPDES TX0023647 discharge permit, effluent exceedances, inspections, penalties
PORT ISABEL WWTP, Port Isabel, Texas: Individual permit TX0023647, held by LAGUNA MADRE WATER DISTRICT; Publicly owned treatment works; Administratively continued; issued February 15, 2017, term to July 1, 2020; discharges to TIDAL MUD FLAT, VADIA ANCHA, BROWNSVILLE SHIP CH.
22 of the 59 pollutants listed for NPDES TX0023647 have no violation or effluent exceedance.
- Copper, total [as Cu]: 3 limits, 49 violations of any kind, 43 effluent exceedances, latest August 31, 2016, largest 878% over the limit.
- Whole Effluent Toxicity [WET] - M. beryllina: 2 limits, 26 violations of any kind, 26 effluent exceedances, latest June 30, 2020, largest 100% over the limit.
- Whole Effluent Toxicity [WET] - Americamysis bahia (formerly Mysidopsis bahia): 2 limits, 26 violations of any kind, 26 effluent exceedances, latest June 30, 2020, largest 100% over the limit.
- Whole effluent toxicity: 0 limits, 16 violations of any kind, 8 effluent exceedances, latest December 31, 2016, largest 100% over the limit.
- Zinc, total [as Zn]: 3 limits, 13 violations of any kind, 7 effluent exceedances, latest March 31, 2014, largest 48% over the limit.
- Nitrogen, ammonia total [as N]: 3 limits, 12 violations of any kind, 6 effluent exceedances, latest October 31, 2021, largest 146% over the limit.
- Flow, in conduit or thru treatment plant: 4 limits, 23 violations of any kind, 4 effluent exceedances, latest March 31, 2015, largest 17% over the limit.
- Solids, total suspended: 3 limits, 9 violations of any kind, 3 effluent exceedances, latest March 31, 2012, largest 255% over the limit.
- BOD, carbonaceous [5 day, 20 C]: 3 limits, 8 violations of any kind, 1 effluent exceedance, latest August 31, 2011, largest 1,910% over the limit.
- Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia): 2 limits, 12 violations of any kind.
- Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia menidia: 2 limits, 12 violations of any kind.
- NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia): 2 limits, 12 violations of any kind.
- NOEC Lethal Static Renewal 7 Day Chronic Menidia menidia: 2 limits, 12 violations of any kind.
- NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia): 2 limits, 12 violations of any kind.
- NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia: 2 limits, 8 violations of any kind.
- Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia): 2 limits, 8 violations of any kind.
- Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia: 2 limits, 8 violations of any kind.
- LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia): 2 limits, 8 violations of any kind.
- LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia menidia: 2 limits, 8 violations of any kind.
- LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia): 2 limits, 8 violations of any kind.
- LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Menidia menidia: 2 limits, 8 violations of any kind.
- Chlorine, total residual: 2 limits, 6 violations of any kind.
- pH: 3 limits, 5 violations of any kind.
- Enterococci: 2 limits, 4 violations of any kind.
- Arsenic, dry weight: 5 limits, 2 violations of any kind.
- Chromium, sludge, total, dry weight [as Cr]: 5 limits, 2 violations of any kind.
- Whole effluent toxicity - retest #1: 3 limits, 2 violations of any kind.
- Whole effluent toxicity - retest #2: 3 limits, 2 violations of any kind.
- Nickel, total [as Ni]: 2 limits, 2 violations of any kind.
- Description of pathogen option used: 2 limits, 2 violations of any kind.
- Oxygen, dissolved [DO]: 1 limit, 2 violations of any kind.
- LC50 Pass/Fail Static 24Hr Acute Americamysis bahia (formerly Mysidopsis bahia): 1 limit, 2 violations of any kind.
- LC50 Pass/Fail Static 24Hr Acute Menidia menidia: 1 limit, 2 violations of any kind.
- Level of pathogen requirements achieved: 2 limits, 1 violation of any kind.
- Vector attraction reduction alternative used: 2 limits, 1 violation of any kind.
- Unit w/liner/leachate collection system: 1 limit, 1 violation of any kind.
- Boundary areas: 1 limit, 1 violation of any kind.
- Selenium, dry weight: 3 limits.
- Copper, dry weight: 3 limits.
- Cadmium, dry weight: 3 limits.
- Molybdenum, sludge, total, dry weight [as Mo]: 3 limits.
- Zinc, sludge, total, dry weight [as Zn]: 3 limits.
- Lead, sludge, total, dry weight [as Pb]: 3 limits.
- Nickel, sludge, total, dry weight [as Ni]: 3 limits.
- Mercury, sludge, total, dry weight [as Hg]: 3 limits.
- Fecal coliform: 1 limit.
- Polychlorinated biphenyls [PCBs]: 1 limit.
- Toxicity characteristic leaching procedure: 1 limit.
- Annual whole sludge application rate: 1 limit.
- Ann. amt sludge disposed by other method: 1 limit.
- Annual amt of sludge incinerated: 1 limit.
- Annual sludge production, total: 1 limit.
- Annual amount of sludge land applied: 1 limit.
- Annual amt. sludge disposed surface unit: 1 limit.
- Annual amt sludge disposed in landfill: 1 limit.
- Annual amt sludge transported interstate: 1 limit.
- Compliance w/part 258 sludge requirement: 1 limit.
- Salmonella: 1 limit.
- Pollutant table from 503.13: 1 limit.
- April 13, 2023: Permit Violations - Violation Specified in Comment (ST6).
- December 14, 2017: Permit Violations - Violation Specified in Comment (ST6).
Texas holds 1,720 Publicly owned treatment works coverages of this permit type in EPA’s file; 407 were issued before TX0023647. LAGUNA MADRE WATER DISTRICT holds 10 permits in Texas.
Other permits held by LAGUNA MADRE WATER DISTRICT
- ANDY BOWIE WWTP, Port Isabel: TX0023621, issued 2020-11-05
- ISLA BLANCA WWTP, South Padre Island: TX0023639, issued 2015-10-20
- PORT ISABEL WTP, Port Isabel: TX0024647
- LAGUNA VISTA WWTP, Cameron County: TX0117072, issued 2015-07-14
- LAGUNA MADRE WATER DISTRICT, Port Isabel: TX0132667
- LAGUNA MADRE WD SEAWATER DESALINATION PLANT, Port Isabel: TX0145912
- LAGUNA MADRE WATER DISTRICT SEAWATER DESALINATION PLANT, Port Isabel: TX0146579
- PORT ISABEL WASTEWATER TREATMENT FACILITY, Port Isabel: TX0147460
- WATER TREATMENT PLANT NO 1, Angana In Cameron Cnty: TXL005015
Coverages issued nearest TX0023647
- 2017-02-03: TARKINGTON ISD WWTP, Cleveland: TX0132543, held by TARKINGTON INDEPENDENT SCHOOL DISTRICT
- 2017-02-06: CITY OF BYNUM WWTP, Bynum: TX0134791, held by BYNUM CITY OF
- 2017-02-10: WEST HARDIN CISD WWTP, Hardin County: TX0030813, held by WEST HARDIN COUNTY CISD
- 2017-02-14: TDCJ FERGUSON UNIT WWTP, Madison County: TX0031615, held by TEXAS DEPARTMENT OF CRIMINAL JUSTICE
- 2017-02-14: CITY OF WINONA WWTF, Winona: TX0073229, held by WINONA, CITY OF
- 2017-02-15: TDCJ POWLEDGE UNIT WWTF, Anderson County: TX0089044, held by TEXAS DEPARTMENT OF CRIMINAL JUSTICE
- 2017-02-15: PIRATES BEACH WWTP, Galveston: TX0126977, held by CITY OF GALVESTON
- 2017-02-23: MOUNTAIN CREEK REGIONAL WWTP, Midlothian: TX0025011, held by TRINITY RIVER AUTHORITY OF TEXAS
- 2017-02-23: CITY OF NEWARK WWTP, Newark: TX0057231, held by CITY OF NEWARK
- 2017-02-23: CITY OF LIBERTY MAIN WWTP, Liberty: TX0074284, held by LIBERTY, CITY OF
PORT ISABEL WWTP among its neighbors
Its county: 327, 11 major; TX0023647 is major permit.
Other permits in the county
- 57 SPACE CONCRETE, Brownsville: TXR1579UH, minor, term to 2028-03-04
- AAA COOPER TRANSPORTATION, La Feria: TXRNEAL13, minor, term to 2026-08-13
- ALAMO CONCRETE PRODUCTS PLANT 85, Brownsville: TXG110941, minor, term to 2021-11-07
- ALAMO CONCRETE PRODUCTS PLANT 86, Harlingen: TXG110938, minor, term to 2021-11-07
- ALL STAR METALS, Brownsville: TXR05AF51, minor, term to 2026-08-13
- ALL STAR METALS LLC, Brownsville: TXR05FA0M, minor, term to 2026-02-28
- ALPHA TEAM INTERNATIONAL COMMERCE, La Feria: TXR05GZ36, minor, term to 2026-08-13
- ALTAS PALMAS PHASE I, Harlingen: TXR1569WN, minor, term to 2028-03-04
- AMAZONCOM SERVICES LLC - WBV1, Brownsville: TXR05GY97, minor, term to 2026-08-13
- ANDY BOWIE WWTP, Port Isabel: TX0023621, minor, term to 2023-11-05
Identity
| Facility | PORT ISABEL WWTP |
|---|---|
| Permittee | LAGUNA MADRE WATER DISTRICT |
| NPDES ID | TX0023647 |
| Status | Administratively continued |
| Type | Individual permit |
| Class | Major |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | February 15, 2017 |
| Expires | July 1, 2020 |
| Address | Port Isabel, TX 78578 |
| Receiving water | TIDAL MUD FLAT, VADIA ANCHA, BROWNSVILLE SHIP CH |
NPDES TX0023647: effluent limits and exceedances
PORT ISABEL WWTP (NPDES TX0023647): 59 pollutants on file, 58 limited; 37 with a violation of any kind, 9 with an exceedance.
| Pollutant | Limits | Violations | Exceedances | Latest | Largest, as filed |
|---|---|---|---|---|---|
| Copper, total [as Cu] | 3 | 49 | 43 | August 31, 2016 | 878% over the limit |
| Whole Effluent Toxicity [WET] - M. beryllina | 2 | 26 | 26 | June 30, 2020 | 100% over the limit |
| Whole Effluent Toxicity [WET] - Americamysis bahia (formerly Mysidopsis bahia) | 2 | 26 | 26 | June 30, 2020 | 100% over the limit |
| Whole effluent toxicity | 0 | 16 | 8 | December 31, 2016 | 100% over the limit |
| Zinc, total [as Zn] | 3 | 13 | 7 | March 31, 2014 | 48% over the limit |
| Nitrogen, ammonia total [as N] | 3 | 12 | 6 | October 31, 2021 | 146% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 23 | 4 | March 31, 2015 | 17% over the limit |
| Solids, total suspended | 3 | 9 | 3 | March 31, 2012 | 255% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 3 | 8 | 1 | August 31, 2011 | 1,910% over the limit |
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia) | 2 | 12 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia menidia | 2 | 12 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 2 | 12 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Menidia menidia | 2 | 12 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 2 | 12 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia | 2 | 8 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 2 | 8 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia | 2 | 8 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 2 | 8 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia menidia | 2 | 8 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia) | 2 | 8 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Menidia menidia | 2 | 8 | 0 | ||
| Chlorine, total residual | 2 | 6 | 0 | ||
| pH | 3 | 5 | 0 | ||
| Enterococci | 2 | 4 | 0 | ||
| Arsenic, dry weight | 5 | 2 | 0 | ||
| Chromium, sludge, total, dry weight [as Cr] | 5 | 2 | 0 | ||
| Whole effluent toxicity - retest #1 | 3 | 2 | 0 | ||
| Whole effluent toxicity - retest #2 | 3 | 2 | 0 | ||
| Nickel, total [as Ni] | 2 | 2 | 0 | ||
| Description of pathogen option used | 2 | 2 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 2 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute Americamysis bahia (formerly Mysidopsis bahia) | 1 | 2 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute Menidia menidia | 1 | 2 | 0 | ||
| Level of pathogen requirements achieved | 2 | 1 | 0 | ||
| Vector attraction reduction alternative used | 2 | 1 | 0 | ||
| Unit w/liner/leachate collection system | 1 | 1 | 0 | ||
| Boundary areas | 1 | 1 | 0 | ||
| Selenium, dry weight | 3 | 0 | 0 | ||
| Copper, dry weight | 3 | 0 | 0 | ||
| Cadmium, dry weight | 3 | 0 | 0 | ||
| Molybdenum, sludge, total, dry weight [as Mo] | 3 | 0 | 0 | ||
| Zinc, sludge, total, dry weight [as Zn] | 3 | 0 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 3 | 0 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 3 | 0 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 3 | 0 | 0 | ||
| Fecal coliform | 1 | 0 | 0 | ||
| Polychlorinated biphenyls [PCBs] | 1 | 0 | 0 | ||
| Toxicity characteristic leaching procedure | 1 | 0 | 0 | ||
| Annual whole sludge application rate | 1 | 0 | 0 | ||
| Ann. amt sludge disposed by other method | 1 | 0 | 0 | ||
| Annual amt of sludge incinerated | 1 | 0 | 0 | ||
| Annual sludge production, total | 1 | 0 | 0 | ||
| Annual amount of sludge land applied | 1 | 0 | 0 | ||
| Annual amt. sludge disposed surface unit | 1 | 0 | 0 | ||
| Annual amt sludge disposed in landfill | 1 | 0 | 0 | ||
| Annual amt sludge transported interstate | 1 | 0 | 0 | ||
| Compliance w/part 258 sludge requirement | 1 | 0 | 0 | ||
| Salmonella | 1 | 0 | 0 | ||
| Pollutant table from 503.13 | 1 | 0 | 0 |
NPDES TX0023647: inspections, violations and enforcement
NPDES TX0023647: 2 single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| April 13, 2023 | Permit Violations - Violation Specified in Comment | ST6 |
| December 14, 2017 | Permit Violations - Violation Specified in Comment | ST6 |
NPDES TX0023647 (PORT ISABEL WWTP): no inspection, formal enforcement action and informal enforcement action on file.
Watch NPDES TX0023647
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Permits near NPDES TX0023647
NPDES TX0023647: 59 pollutant rows, 2 dated events; ICIS-NPDES download, loaded September 15, 2026.