Clean Water Act discharge permit · NPDES TX0129364
CITY OF CASTROVILLE WWTP, Castroville, TX: NPDES TX0129364 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 9Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
CITY OF CASTROVILLE WWTP, held by CASTROVILLE, CITY OF, holds NPDES permit TX0129364, which discharges to Medina River Below Medina Diversion Lake. EPA’s file records it issued May 8, 2020 and expiring May 8, 2025. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | CITY OF CASTROVILLE WWTP |
|---|---|
| Permittee as filed | CASTROVILLE, CITY OF |
| NPDES ID | TX0129364 |
| 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 | May 8, 2020 |
| Expiration date | May 8, 2025 |
| Address | Castroville, TX 78009 |
| Receiving water | Medina River Below Medina Diversion Lake |
| Subwatershed | Flat Creek-Medina River (HUC 121003020501) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 38Pollutants on file
- 9Under a numeric limit
- 38With a violation of any kind
- 3With 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 |
|---|---|---|---|---|---|
| Phosphorus, total [as P] | 3 | 37 | 25 | June 30, 2025 | 344% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 3 | 14 | 2 | January 31, 2026 | 45% over the limit |
| E. coli | 2 | 9 | 1 | May 31, 2025 | 506% over the limit |
| Solids, total suspended | 3 | 12 | 0 | ||
| Nitrogen, ammonia total [as N] | 3 | 12 | 0 | ||
| pH | 2 | 9 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 8 | 0 | ||
| Chlorine, total residual | 2 | 8 | 0 | ||
| Arsenic, dry weight | 0 | 5 | 0 | ||
| Chromium, sludge, total, dry weight [as Cr] | 0 | 5 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 4 | 0 | ||
| Selenium, dry weight | 0 | 3 | 0 | ||
| Copper, dry weight | 0 | 3 | 0 | ||
| Cadmium, dry weight | 0 | 3 | 0 | ||
| Molybdenum, sludge, total, dry weight [as Mo] | 0 | 3 | 0 | ||
| Zinc, sludge, total, dry weight [as Zn] | 0 | 3 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 0 | 3 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 0 | 3 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 0 | 3 | 0 | ||
| Nickel, total [as Ni] | 0 | 2 | 0 | ||
| Polychlorinated biphenyls [PCBs] | 0 | 2 | 0 | ||
| Toxicity characteristic leaching procedure | 0 | 2 | 0 | ||
| Ann. amt sludge disposed by other method | 0 | 2 | 0 | ||
| Annual amt of sludge incinerated | 0 | 2 | 0 | ||
| Annual sludge production, total | 0 | 2 | 0 | ||
| Annual amount of sludge land applied | 0 | 2 | 0 | ||
| Annual amt. sludge disposed surface unit | 0 | 2 | 0 | ||
| Annual amt sludge disposed in landfill | 0 | 2 | 0 | ||
| Annual amt sludge transported interstate | 0 | 2 | 0 | ||
| Level of pathogen requirements achieved | 0 | 2 | 0 | ||
| Description of pathogen option used | 0 | 2 | 0 | ||
| Vector attraction reduction alternative used | 0 | 2 | 0 | ||
| Fecal coliform | 0 | 1 | 0 | ||
| Unit w/liner/leachate collection system | 0 | 1 | 0 | ||
| Compliance w/part 258 sludge requirement | 0 | 1 | 0 | ||
| Boundary areas | 0 | 1 | 0 | ||
| Salmonella | 0 | 1 | 0 | ||
| Pollutant table from 503.13 | 0 | 1 | 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
- 2Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| December 15, 2023 | Permit Violations - Violation Specified in Comment | ST6 |
| May 16, 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 September 14, 2026.