Clean Water Act discharge permit · NPDES TX0026671
SEADRIFT WWTP, Seadrift, TX: NPDES TX0026671 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 37Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
SEADRIFT WWTP, held by SEADRIFT, CITY OF, holds NPDES permit TX0026671, which discharges to Unnamed Ditch;Hallies Bayou, San Antonio Bay. EPA’s file records it issued March 11, 2020 and expiring March 11, 2025. 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 | SEADRIFT WWTP |
|---|---|
| Permittee as filed | SEADRIFT, CITY OF |
| NPDES ID | TX0026671 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | March 11, 2020 |
| Expiration date | March 11, 2025 |
| Address | Seadrift, TX 77983 |
| Receiving water | UNNAMED DITCH;HALLIES BAYOU, SAN ANTONIO BAY |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | San Antonio Bay-Espiritu Santo Bay (HUC 121004030200) |
| 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
- 39Pollutants on file
- 37Under a numeric limit
- 38With a violation of any kind
- 7With 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.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| E. coli | 2 | 50 | 38 | September 30, 2025 | 99,999% over the limit |
| Solids, total suspended | 3 | 34 | 10 | December 31, 2025 | 105% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 19 | 3 | March 31, 2016 | 230% over the limit |
| Chlorine, total residual | 3 | 35 | 2 | November 30, 2015 | 3,940% over the limit |
| BOD, 5-day, 20 deg. C | 3 | 10 | 1 | April 30, 2025 | 15% over the limit |
| Oxygen, dissolved [DO] | 1 | 10 | 1 | September 30, 2025 | 2% over the limit |
| Polychlorinated biphenyls [PCBs] | 1 | 8 | 1 | July 31, 2003 | 2% over the limit |
| pH | 3 | 20 | 0 | ||
| BOD, carbonaceous [5 day, 20 C] | 0 | 17 | 0 | ||
| Nitrogen, ammonia total [as N] | 0 | 16 | 0 | ||
| Arsenic, dry weight | 5 | 10 | 0 | ||
| Chromium, sludge, total, dry weight [as Cr] | 5 | 10 | 0 | ||
| Toxicity characteristic leaching procedure | 1 | 7 | 0 | ||
| Selenium, dry weight | 3 | 6 | 0 | ||
| Copper, dry weight | 3 | 6 | 0 | ||
| Cadmium, dry weight | 3 | 6 | 0 | ||
| Molybdenum, sludge, total, dry weight [as Mo] | 3 | 6 | 0 | ||
| Zinc, sludge, total, dry weight [as Zn] | 3 | 6 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 3 | 6 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 3 | 6 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 3 | 6 | 0 | ||
| Ann. amt sludge disposed by other method | 1 | 6 | 0 | ||
| Annual amt of sludge incinerated | 1 | 6 | 0 | ||
| Annual sludge production, total | 1 | 6 | 0 | ||
| Annual amount of sludge land applied | 1 | 6 | 0 | ||
| Annual amt. sludge disposed surface unit | 1 | 6 | 0 | ||
| Annual amt sludge disposed in landfill | 1 | 6 | 0 | ||
| Annual amt sludge transported interstate | 1 | 6 | 0 | ||
| Nickel, total [as Ni] | 2 | 4 | 0 | ||
| Level of pathogen requirements achieved | 2 | 4 | 0 | ||
| Description of pathogen option used | 2 | 4 | 0 | ||
| Vector attraction reduction alternative used | 2 | 4 | 0 | ||
| Compliance w/part 258 sludge requirement | 1 | 4 | 0 | ||
| Fecal coliform | 1 | 2 | 0 | ||
| Unit w/liner/leachate collection system | 1 | 2 | 0 | ||
| Boundary areas | 1 | 2 | 0 | ||
| Salmonella | 1 | 2 | 0 | ||
| Pollutant table from 503.13 | 1 | 2 | 0 | ||
| Annual whole sludge application rate | 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
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| November 4, 2024 | 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.