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Clean Water Act discharge permit · NPDES TX0025224

CANYON PARK ESTATES WWTP, Hancock, TX: NPDES TX0025224 discharge permit, effluent exceedances, inspections, penalties

CANYON PARK ESTATES WWTP, held by GUADALUPE-BLANCO RIVER AUTHORITY, holds NPDES permit TX0025224, which discharges to Unnamed Creek, Canyon Lake. EPA’s file records it issued October 15, 2019 and expiring October 15, 2024. 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 filedCANYON PARK ESTATES WWTP
Permittee as filedGUADALUPE-BLANCO RIVER AUTHORITY
NPDES IDTX0025224
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMinor discharger
Facility typePublicly owned treatment works
ProgramPublicly owned treatment works
IssuedOctober 15, 2019
Expiration dateOctober 15, 2024
AddressHancock, TX 78133
Receiving waterUNNAMED CREEK, CANYON LAKE
Receiving water impaired303(D) Listed
SubwatershedTom Creek-Canyon Lake (HUC 121002010407)

Cited to the EPA ICIS-NPDES permit file (ECHO 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
Flow, in conduit or thru treatment plant253July 31, 200916% over the limit
Solids, total suspended311February 28, 202155% over the limit
Arsenic, dry weight550
Chromium, sludge, total, dry weight [as Cr]550
Selenium, dry weight330
Copper, dry weight330
Cadmium, dry weight330
Molybdenum, sludge, total, dry weight [as Mo]330
Zinc, sludge, total, dry weight [as Zn]330
Lead, sludge, total, dry weight [as Pb]330
Nickel, sludge, total, dry weight [as Ni]330
Mercury, sludge, total, dry weight [as Hg]330
Nickel, total [as Ni]220
Level of pathogen requirements achieved220
Description of pathogen option used220
Vector attraction reduction alternative used220
pH310
Fecal coliform110
Unit w/liner/leachate collection system110
Boundary areas110
Salmonella110
Pollutant table from 503.13110
Nitrogen, ammonia total [as N]300
Phosphorus, total [as P]300
BOD, carbonaceous [5 day, 20 C]300
Chlorine, total residual200
E. coli200
Oxygen, dissolved [DO]100
Polychlorinated biphenyls [PCBs]100
Toxicity characteristic leaching procedure100
Annual whole sludge application rate100
Ann. amt sludge disposed by other method100
Annual amt of sludge incinerated100
Annual sludge production, total100
Annual amount of sludge land applied100
Annual amt. sludge disposed surface unit100
Annual amt sludge disposed in landfill100
Annual amt sludge transported interstate100
Compliance w/part 258 sludge requirement100

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
January 28, 2025Permit Violations - Violation Specified in CommentST6
August 1, 2020PR: Biosolids - Land Application: Invalid Monitoring or Unrepresentative Sample Violation (001)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.

Watch this permit

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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID TX0025224 there.

Nearby on the register

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