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Clean Water Act discharge permit · NPDES TX0025101

DFW INTERNATIONAL AIRPORT, Tarrant County, TX: NPDES TX0025101 discharge permit, effluent exceedances, inspections, penalties

DFW INTERNATIONAL AIRPORT, held by DALLAS FORT WORTH INTERNATIONA, holds NPDES permit TX0025101, which discharges to Grapevine Creek. EPA’s file records it issued March 18, 2019 and expiring March 18, 2024.

DFW INTERNATIONAL AIRPORT, Tarrant County, Texas: Individual permit TX0025101, held by DALLAS FORT WORTH INTERNATIONA; Administratively continued (past its expiration date and still in force until reissued); issued March 18, 2019, term to March 18, 2024; discharges to GRAPEVINE CREEK.

  • pH: 10 limits, 143 violations of any kind, 11 effluent exceedances, latest August 31, 2025.
  • Oil & Grease: 5 limits, 37 violations of any kind, 1 effluent exceedance, latest April 30, 2015, largest 47% over the limit.
  • Hydrocarbons, petroleum: 5 limits, 3 violations of any kind, 1 effluent exceedance, latest January 31, 2013, largest 55% over the limit.
  • pH range excursions, > 60 minutes: 5 limits, 39 violations of any kind, 0 effluent exceedances.
  • pH range excursions, monthly total accum: 5 limits, 39 violations of any kind, 0 effluent exceedances.
  • Flow, in conduit or thru treatment plant: 10 limits, 27 violations of any kind, 0 effluent exceedances.
  • BOD, 5-day, 20 deg. C: 5 limits, 14 violations of any kind, 0 effluent exceedances.
  • Propylene glycol, total: 5 limits, 11 violations of any kind, 0 effluent exceedances.
  • Ethylene glycol: 5 limits, 11 violations of any kind, 0 effluent exceedances.
  • Oxygen demand, chem. [high level] [COD]: 5 limits, 1 violation of any kind, 0 effluent exceedances.
  • Copper, total [as Cu]: 4 limits, 1 violation of any kind, 0 effluent exceedances.
  • Zinc, total [as Zn]: 4 limits, 1 violation of any kind, 0 effluent exceedances.
  • Aluminum, total [as Al]: 4 limits, 1 violation of any kind, 0 effluent exceedances.
  • Nitrogen, ammonia total [as N]: 5 limits, 0 violations of any kind, 0 effluent exceedances.
  • March 15, 2022: Permit Violations - Violation Specified in Comment (ST6).
  • April 26, 2017: Permit Violations - Violation Specified in Comment (ST6).

DFW INTERNATIONAL AIRPORT among its neighbors

EPA’s permit file holds 101 discharge permits in the Big Bear Creek subwatershed (HUC 120301020703), TX0025101 among them. Its county holds 1,661, 7 of them major permits; TX0025101 is a minor permit.

Other permits in the Big Bear Creek subwatershed (HUC 120301020703)

  • 210 HARDY DRIVE, Colleyville: TXR1522YS, minor permit, discharging to BIG BEAR CREEK, permit term to March 4, 2028
  • 2910 PARR LANE PHASE 1, Grapevine: TXR1559QC, minor permit, discharging to BIG BEAR CREEK, permit term to March 4, 2028
  • 3036 PARR LANE AND 3107 WINTERGREEN TERRACE, Grapevine: TXR1549XK, minor permit, discharging to BIG BEAR CREEK, permit term to March 4, 2028
  • 7-ELEVEN NEC I-35 AND TIMBERLAND BLVD, Fort Worth: TXR1552MH, minor permit, discharging to BIG BEAR CREEK, permit term to March 4, 2028
  • 7224 OAK ALLEY DRIVE, Colleyville: TXR1537MM, minor permit, discharging to BIG BEAR CREEK, permit term to March 4, 2028
  • AIR GENERAL INC- DFW, Dfw: TXRNECI09, minor permit, permit term to August 13, 2026
  • ALTA VISTA MHP WWTP, Keller: TX0023591, minor permit, discharging to BIG BEAR CREEK, LOWER W FORK TRINIT, permit term to September 1, 2011
  • AMERIFLIGHT, Dallas: TXR05EY39, minor permit, permit term to August 13, 2026
  • BP AEROSPACE, Euless: TXRNECH64, minor permit, permit term to August 13, 2026
  • BRUMLOW EAST, Southlake: TXR1584YV, minor permit, discharging to BIG BEAR CREEK, permit term to March 4, 2028

Identity

Facility as filedDFW INTERNATIONAL AIRPORT
Permittee as filedDALLAS FORT WORTH INTERNATIONA
NPDES IDTX0025101
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, 2019
Expiration dateMarch 18, 2024
AddressTarrant County, TX 75261
Receiving waterGRAPEVINE CREEK
SubwatershedBig Bear Creek (HUC 120301020703)
SIC4581 – Airports, Flying Fields, & Services
Other EPA IDs (FRS)RCRA handler TXR000066217; ICIS-AIR source 06000000481136E360

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
pH1014311August 31, 2025
Oil & Grease5371April 30, 201547% over the limit
Hydrocarbons, petroleum531January 31, 201355% over the limit
pH range excursions, > 60 minutes5390
pH range excursions, monthly total accum5390
Flow, in conduit or thru treatment plant10270
BOD, 5-day, 20 deg. C5140
Propylene glycol, total5110
Ethylene glycol5110
Oxygen demand, chem. [high level] [COD]510
Copper, total [as Cu]410
Zinc, total [as Zn]410
Aluminum, total [as Al]410
Nitrogen, ammonia total [as N]500

Inspections, violations and enforcement

DateWhat EPA recordedAgency
March 15, 2022Permit Violations - Violation Specified in CommentST6
April 26, 2017Permit Violations - Violation Specified in CommentST6

Inspections

EPA’s inspection file holds no inspection for NPDES TX0025101.

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES TX0025101.

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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 permit TX0025101 for DFW INTERNATIONAL AIRPORT in Tarrant County, TX, which discharges to Grapevine Creek and lists a permit status of administratively continued. The facts show 3 pollutants under a numeric limit and 3 pollutants with an effluent exceedance, with the permit issued March 18, 2019 and expiring March 18, 2024.