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Clean Water Act discharge permit · NPDES TX0054232

CITY OF STOCKDALE WWTP, Stockdale, TX: NPDES TX0054232 discharge permit, effluent exceedances, inspections, penalties

CITY OF STOCKDALE WWTP, held by STOCKDALE, CITY OF, holds NPDES permit TX0054232, which discharges to Unnamed Tributary;Stockdale Branch. EPA’s file records it issued April 16, 2020 and expiring April 16, 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 filedCITY OF STOCKDALE WWTP
Permittee as filedSTOCKDALE, CITY OF
NPDES IDTX0054232
Permit statusEffective
Permit typeIndividual permit
Discharger classMinor discharger
Facility typePublicly owned treatment works
ProgramPublicly owned treatment works
IssuedApril 16, 2020
Expiration dateApril 16, 2025
AddressStockdale, TX 78160
Receiving waterUNNAMED TRIBUTARY;STOCKDALE BRANCH
SubwatershedClifton Branch-Cibolo Creek (HUC 121003040401)
SIC4952 – 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

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 measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
E. coli25149May 31, 2026578% over the limit
BOD, 5-day, 20 deg. C35647February 28, 2026262% over the limit
Solids, total suspended22422July 31, 2026129% over the limit
pH373May 31, 2013
Arsenic, dry weight5100
Chromium, sludge, total, dry weight [as Cr]5100
Selenium, dry weight360
Copper, dry weight360
Cadmium, dry weight360
Molybdenum, sludge, total, dry weight [as Mo]360
Zinc, sludge, total, dry weight [as Zn]360
Lead, sludge, total, dry weight [as Pb]360
Nickel, sludge, total, dry weight [as Ni]360
Mercury, sludge, total, dry weight [as Hg]360
Flow, in conduit or thru treatment plant260
Nickel, total [as Ni]240
Level of pathogen requirements achieved240
Description of pathogen option used240
Vector attraction reduction alternative used240
Fecal coliform120
Polychlorinated biphenyls [PCBs]120
Toxicity characteristic leaching procedure120
Ann. amt sludge disposed by other method120
Annual amt of sludge incinerated120
Annual sludge production, total120
Annual amount of sludge land applied120
Annual amt. sludge disposed surface unit120
Annual amt sludge disposed in landfill120
Annual amt sludge transported interstate120
Unit w/liner/leachate collection system120
Compliance w/part 258 sludge requirement120
Boundary areas120
Salmonella120
Pollutant table from 503.13120
Oxygen, dissolved [DO]110
Annual whole sludge application rate100

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

DateWhat EPA recordedAgency
March 25, 2025Permit Violations - Violation Specified in CommentST6
February 8, 2017Permit Violations - Violation Specified in CommentST6

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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Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

What this page shows

This public-records page covers NPDES discharge permit TX0054232 for the City of Stockdale WWTP in Stockdale, TX, held by Stockdale, City of, which discharges to Unnamed Tributary;Stockdale Branch within the Clifton Branch-Cibolo Creek subwatershed (HUC 121003040401). The page lists a permit status of Effective, a Minor discharger class, 36 pollutants on file, 4 pollutants with an effluent exceedance, and an issue date of April 16, 2020 with an expiration date of April 16, 2025.