Clean Water Act discharge permit · NPDES TX0110337
SAN PATRICIO COUNTY MUD 1 WWTP, Edroy, TX: NPDES TX0110337 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 8Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
SAN PATRICIO COUNTY MUD 1 WWTP, held by SAN PATRICIO COUNTY MUD NO. 1, holds NPDES permit TX0110337, which discharges to Nueces River Tidal. EPA’s file records it issued August 10, 2020 and expiring August 10, 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 | SAN PATRICIO COUNTY MUD 1 WWTP |
|---|---|
| Permittee as filed | SAN PATRICIO COUNTY MUD NO. 1 |
| NPDES ID | TX0110337 |
| 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 | August 10, 2020 |
| Expiration date | August 10, 2025 |
| Address | Edroy, TX 78352 |
| Receiving water | Nueces River Tidal |
| Subwatershed | Hondo Creek (HUC 121101110706) |
| 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
- 37Pollutants on file
- 8Under a numeric limit
- 37With 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 | 29 | 15 | March 31, 2017 | 2,663% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 90 | 12 | September 30, 2016 | 3,500% over the limit |
| Solids, total suspended | 3 | 125 | 11 | September 30, 2018 | 79% over the limit |
| Oxygen, dissolved [DO] | 1 | 45 | 7 | March 31, 2017 | 86% over the limit |
| BOD, 5-day, 20 deg. C | 3 | 144 | 5 | September 30, 2016 | 129% over the limit |
| pH | 2 | 85 | 2 | September 30, 2016 | |
| Chlorine, total residual | 2 | 77 | 1 | February 28, 2003 | 50% over the limit |
| Arsenic, dry weight | 0 | 35 | 0 | ||
| Chromium, sludge, total, dry weight [as Cr] | 0 | 35 | 0 | ||
| Selenium, dry weight | 0 | 21 | 0 | ||
| Copper, dry weight | 0 | 21 | 0 | ||
| Cadmium, dry weight | 0 | 21 | 0 | ||
| Molybdenum, sludge, total, dry weight [as Mo] | 0 | 21 | 0 | ||
| Zinc, sludge, total, dry weight [as Zn] | 0 | 21 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 0 | 21 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 0 | 21 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 0 | 21 | 0 | ||
| Level of pathogen requirements achieved | 0 | 15 | 0 | ||
| Description of pathogen option used | 0 | 15 | 0 | ||
| Nickel, total [as Ni] | 0 | 14 | 0 | ||
| Vector attraction reduction alternative used | 0 | 14 | 0 | ||
| Toxicity characteristic leaching procedure | 0 | 8 | 0 | ||
| Compliance w/part 258 sludge requirement | 0 | 8 | 0 | ||
| Fecal coliform | 0 | 7 | 0 | ||
| Polychlorinated biphenyls [PCBs] | 0 | 7 | 0 | ||
| Ann. amt sludge disposed by other method | 0 | 7 | 0 | ||
| Annual amt of sludge incinerated | 0 | 7 | 0 | ||
| Annual sludge production, total | 0 | 7 | 0 | ||
| Annual amount of sludge land applied | 0 | 7 | 0 | ||
| Annual amt. sludge disposed surface unit | 0 | 7 | 0 | ||
| Annual amt sludge disposed in landfill | 0 | 7 | 0 | ||
| Annual amt sludge transported interstate | 0 | 7 | 0 | ||
| Unit w/liner/leachate collection system | 0 | 7 | 0 | ||
| Boundary areas | 0 | 7 | 0 | ||
| Salmonella | 0 | 7 | 0 | ||
| Pollutant table from 503.13 | 0 | 7 | 0 | ||
| Zinc, total [as Zn] | 2 | 2 | 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 |
|---|---|---|
| July 1, 2024 | Permit Violations - Violation Specified in Comment | ST6 |
| June 21, 2019 | 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.