Clean Water Act discharge permit · NPDES TX0054631
CITY OF YORKTOWN WWTP, Yorktown, TX: NPDES TX0054631 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 38Pollutants under a numeric limit
- 8Pollutants with an effluent exceedance
CITY OF YORKTOWN WWTP, held by YORKTOWN, CITY OF, holds NPDES permit TX0054631, which discharges to Yorktown Creek, Fifteen Mile Creek. EPA’s file records it issued March 18, 2020 and expiring March 18, 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 | CITY OF YORKTOWN WWTP |
|---|---|
| Permittee as filed | YORKTOWN, CITY OF |
| NPDES ID | TX0054631 |
| 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 18, 2020 |
| Expiration date | March 18, 2025 |
| Address | Yorktown, TX 78164 |
| Receiving water | YORKTOWN CREEK, FIFTEEN MILE CREEK |
| Subwatershed | Bee Creek-Walnut Creek (HUC 120903010305) |
| 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
- 8With 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 | 263 | 179 | March 31, 2022 | 847% over the limit |
| E. coli | 2 | 59 | 41 | March 31, 2020 | 3,741% over the limit |
| Solids, total suspended | 3 | 108 | 21 | January 31, 2022 | 153% over the limit |
| Oxygen, dissolved [DO] | 1 | 36 | 12 | September 30, 2005 | 40% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 3 | 121 | 7 | May 31, 2011 | 99,999% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 66 | 5 | May 31, 2023 | 477% over the limit |
| Chlorine, total residual | 2 | 67 | 3 | August 31, 2005 | 30% over the limit |
| pH | 3 | 63 | 1 | May 31, 2014 | |
| Arsenic, dry weight | 5 | 20 | 0 | ||
| Chromium, sludge, total, dry weight [as Cr] | 5 | 20 | 0 | ||
| Selenium, dry weight | 3 | 12 | 0 | ||
| Copper, dry weight | 3 | 12 | 0 | ||
| Cadmium, dry weight | 3 | 12 | 0 | ||
| Molybdenum, sludge, total, dry weight [as Mo] | 3 | 12 | 0 | ||
| Zinc, sludge, total, dry weight [as Zn] | 3 | 12 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 3 | 12 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 3 | 12 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 3 | 12 | 0 | ||
| Nickel, total [as Ni] | 2 | 8 | 0 | ||
| Level of pathogen requirements achieved | 2 | 8 | 0 | ||
| Description of pathogen option used | 2 | 8 | 0 | ||
| Vector attraction reduction alternative used | 2 | 8 | 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 sludge production, total | 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 | ||
| Compliance w/part 258 sludge requirement | 1 | 5 | 0 | ||
| Fecal coliform | 1 | 4 | 0 | ||
| Unit w/liner/leachate collection system | 1 | 4 | 0 | ||
| Boundary areas | 1 | 4 | 0 | ||
| Salmonella | 1 | 4 | 0 | ||
| Pollutant table from 503.13 | 1 | 4 | 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
- 3Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| May 1, 2025 | Permit Violations - Violation Specified in Comment | ST6 |
| July 23, 2024 | Permit Violations - Violation Specified in Comment | ST6 |
| September 11, 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.