Clean Water Act discharge permit · NPDES TX0113786
WILLOW CREEK WWTP, Smithville, TX: NPDES TX0113786 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 38Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
WILLOW CREEK WWTP, held by SMITHVILLE, CITY OF, holds NPDES permit TX0113786, which discharges to Colorado River Above La Grange. EPA’s file records it issued January 24, 2020 and expiring January 24, 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 | WILLOW CREEK WWTP |
|---|---|
| Permittee as filed | SMITHVILLE, CITY OF |
| NPDES ID | TX0113786 |
| 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 | January 24, 2020 |
| Expiration date | January 24, 2025 |
| Address | Smithville, TX 78957 |
| Receiving water | COLORADO RIVER ABOVE LA GRANGE |
| Subwatershed | Willow Creek-Colorado River (HUC 120903010404) |
| 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
- 38Pollutants on file
- 38Under a numeric limit
- 37With a violation of any kind
- 6With 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 |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 3 | 74 | 17 | January 31, 2026 | 727% over the limit |
| Solids, total suspended | 3 | 63 | 6 | February 28, 2026 | 815% over the limit |
| E. coli | 2 | 36 | 6 | March 31, 2023 | 99,999% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 43 | 2 | August 31, 2017 | 54,287% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 3 | 58 | 1 | January 31, 2008 | 26% over the limit |
| Chlorine, total residual | 2 | 40 | 1 | August 31, 2011 | 85% over the limit |
| pH | 3 | 43 | 0 | ||
| Arsenic, dry weight | 5 | 25 | 0 | ||
| Chromium, sludge, total, dry weight [as Cr] | 5 | 25 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 19 | 0 | ||
| Selenium, dry weight | 3 | 15 | 0 | ||
| Copper, dry weight | 3 | 15 | 0 | ||
| Cadmium, dry weight | 3 | 15 | 0 | ||
| Molybdenum, sludge, total, dry weight [as Mo] | 3 | 15 | 0 | ||
| Zinc, sludge, total, dry weight [as Zn] | 3 | 15 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 3 | 15 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 3 | 15 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 3 | 15 | 0 | ||
| Nickel, total [as Ni] | 2 | 10 | 0 | ||
| Level of pathogen requirements achieved | 2 | 10 | 0 | ||
| Description of pathogen option used | 2 | 10 | 0 | ||
| Vector attraction reduction alternative used | 2 | 10 | 0 | ||
| Annual sludge production, total | 1 | 6 | 0 | ||
| Fecal coliform | 1 | 5 | 0 | ||
| Polychlorinated biphenyls [PCBs] | 1 | 5 | 0 | ||
| Toxicity characteristic leaching procedure | 1 | 5 | 0 | ||
| Ann. amt sludge disposed by other method | 1 | 5 | 0 | ||
| Annual amt of sludge incinerated | 1 | 5 | 0 | ||
| Annual amount of sludge land applied | 1 | 5 | 0 | ||
| Annual amt. sludge disposed surface unit | 1 | 5 | 0 | ||
| Annual amt sludge disposed in landfill | 1 | 5 | 0 | ||
| Annual amt sludge transported interstate | 1 | 5 | 0 | ||
| Unit w/liner/leachate collection system | 1 | 5 | 0 | ||
| Compliance w/part 258 sludge requirement | 1 | 5 | 0 | ||
| Boundary areas | 1 | 5 | 0 | ||
| Salmonella | 1 | 5 | 0 | ||
| Pollutant table from 503.13 | 1 | 5 | 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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES TX0113786.
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.