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Clean Water Act discharge permit · NPDES TX0123676

CUDDIHY AIRFIELD WWTP, Corpus Christi, TX: NPDES TX0123676 discharge permit, effluent exceedances, inspections, penalties

CUDDIHY AIRFIELD WWTP, held by GUERRA UNDERGROUND LLC, holds NPDES permit TX0123676, which discharges to Oso Creek, Oso Bay. 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 (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filedCUDDIHY AIRFIELD WWTP
Permittee as filedGUERRA UNDERGROUND LLC
NPDES IDTX0123676
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedMarch 18, 2020
Expiration dateMarch 18, 2025
AddressCorpus Christi, TX 78415
Receiving waterOSO CREEK, OSO BAY
SubwatershedMiddle Laguna Madre (HUC 121102070000)

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
Solids, total suspended3261May 31, 20152% over the limit
Flow, in conduit or thru treatment plant2171May 31, 2002251% over the limit
Chlorine, total residual2171February 28, 20033% over the limit
BOD, 5-day, 20 deg. C3230
Arsenic, dry weight5200
Chromium, sludge, total, dry weight [as Cr]5200
pH3180
E. coli2140
Selenium, dry weight3120
Copper, dry weight3120
Cadmium, dry weight3120
Molybdenum, sludge, total, dry weight [as Mo]3120
Zinc, sludge, total, dry weight [as Zn]3120
Lead, sludge, total, dry weight [as Pb]3120
Nickel, sludge, total, dry weight [as Ni]3120
Mercury, sludge, total, dry weight [as Hg]3120
Nickel, total [as Ni]280
Level of pathogen requirements achieved280
Description of pathogen option used280
Vector attraction reduction alternative used280
Oxygen, dissolved [DO]180
Polychlorinated biphenyls [PCBs]160
Toxicity characteristic leaching procedure160
Ann. amt sludge disposed by other method150
Annual amt of sludge incinerated150
Annual sludge production, total150
Annual amount of sludge land applied150
Annual amt. sludge disposed surface unit150
Annual amt sludge disposed in landfill150
Annual amt sludge transported interstate150
Fecal coliform140
Unit w/liner/leachate collection system140
Compliance w/part 258 sludge requirement140
Boundary areas140
Salmonella140
Pollutant table from 503.13140
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

EPA’s single-event violation file, as loaded, holds no violation for NPDES TX0123676.

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

One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, TX0123676.

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How we handle your data → Privacy

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 TX0123676 there.

Nearby on the register

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