Clean Water Act discharge permit · NPDES TX0052787
WESLACO NORTH WWTP, Weslaco, TX: NPDES TX0052787 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 55Pollutants under a numeric limit
- 9Pollutants with an effluent exceedance
WESLACO NORTH WWTP, held by WESLACO, CITY OF, holds NPDES permit TX0052787, which discharges to Unnamed Ditch; North Floodway; Laguna Madre. EPA’s file records it issued November 6, 2018 and expiring November 6, 2023. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | WESLACO NORTH WWTP |
|---|---|
| Permittee as filed | WESLACO, CITY OF |
| NPDES ID | TX0052787 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | November 6, 2018 |
| Expiration date | November 6, 2023 |
| Address | Weslaco, TX 78599 |
| Receiving water | UNNAMED DITCH; NORTH FLOODWAY; LAGUNA MADRE |
| Subwatershed | Upper Pilot Channel-Laguna Madre (HUC 121102080300) |
| SIC | 4952 – Sewerage Systems |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 62Pollutants on file
- 55Under a numeric limit
- 22With a violation of any kind
- 9With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant; the 60 with the most exceedances of 62 are shown.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 3 | 52 | 47 | July 31, 2025 | 1,007% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 3 | 38 | 38 | December 31, 2025 | 913% over the limit |
| Solids, total suspended | 3 | 21 | 18 | January 31, 2025 | 890% over the limit |
| Chlorine, total residual | 2 | 17 | 17 | November 30, 2024 | 440% over the limit |
| E. coli | 2 | 14 | 14 | January 31, 2025 | 873% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 19 | 7 | August 31, 2010 | 120% over the limit |
| Oxygen, dissolved [DO] | 1 | 5 | 4 | November 30, 2024 | 58% over the limit |
| Zinc, total [as Zn] | 3 | 11 | 2 | December 31, 2005 | 2,102% over the limit |
| Coliform, fecal general | 0 | 1 | 1 | March 31, 2009 | 50% over the limit |
| LC50 Pass/Fail Static 24Hr Acute D. Pulex | 1 | 5 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute Pimephales promelas | 1 | 5 | 0 | ||
| Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex | 0 | 4 | 0 | ||
| NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex | 0 | 4 | 0 | ||
| LOAEC Lethal Static Renewal 48HR Acute Daphnia pulex | 0 | 4 | 0 | ||
| Compliance w/part 258 sludge requirement | 1 | 3 | 0 | ||
| pH | 3 | 2 | 0 | ||
| Description of pathogen option used | 2 | 2 | 0 | ||
| LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas | 0 | 2 | 0 | ||
| NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas | 0 | 2 | 0 | ||
| LOAEC Lethal Survival Static Renewal 48Hr Acute Pimephales promelas | 0 | 2 | 0 | ||
| Toxicity characteristic leaching procedure | 1 | 1 | 0 | ||
| Pollutant table from 503.13 | 1 | 1 | 0 | ||
| Whole effluent toxicity - retest #1 | 7 | 0 | 0 | ||
| Whole effluent toxicity - retest #2 | 7 | 0 | 0 | ||
| Arsenic, dry weight | 5 | 0 | 0 | ||
| Chromium, sludge, total, dry weight [as Cr] | 5 | 0 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 0 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | 4 | 0 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 0 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | 4 | 0 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 0 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 4 | 0 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 0 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelas | 4 | 0 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 0 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas | 4 | 0 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 0 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas | 4 | 0 | 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 | ||
| Nickel, total [as Ni] | 2 | 0 | 0 | ||
| Level of pathogen requirements achieved | 2 | 0 | 0 | ||
| Vector attraction reduction alternative used | 2 | 0 | 0 | ||
| Fecal coliform | 1 | 0 | 0 | ||
| Polychlorinated biphenyls [PCBs] | 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 | ||
| Unit w/liner/leachate collection system | 1 | 0 | 0 |
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 4Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| August 8, 2024 | Permit Violations - Violation Specified in Comment | ST6 |
| August 1, 2022 | Permit Violations - Violation Specified in Comment | ST6 |
| January 7, 2019 | Permit Violations - Violation Specified in Comment | ST6 |
| January 12, 2017 | Permit Violations - Violation Specified in Comment | ST6 |
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.