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Clean Water Act discharge permit · NPDES TX0116891

EXPLORER PIPELINE - PORT ARTHUR STATION, Port Arthur, TX: NPDES TX0116891 discharge permit, effluent exceedances, inspections, penalties

EXPLORER PIPELINE - PORT ARTHUR STATION, held by EXPLORER PIPELINE COMPANY, holds NPDES permit TX0116891, which discharges to Unnamed Drainage Ditch; Main Canal C Of Jefferson. EPA’s file records it issued September 20, 2018 and expiring September 20, 2023.

EXPLORER PIPELINE - PORT ARTHUR STATION, Port Arthur, Texas: Individual permit TX0116891, held by EXPLORER PIPELINE COMPANY; Administratively continued (past its expiration date and still in force until reissued); issued September 20, 2018, term to September 20, 2023; discharges to UNNAMED DRAINAGE DITCH; MAIN CANAL C OF JEFFERSON.

  • Oxygen demand, chem. [high level] [COD]: 2 limits, 19 violations of any kind, 3 effluent exceedances, latest January 31, 2015, largest 95% over the limit.
  • pH: 4 limits, 34 violations of any kind, 2 effluent exceedances, latest September 30, 2012.
  • Oil & Grease: 2 limits, 18 violations of any kind, 2 effluent exceedances, latest January 31, 2007, largest 53% over the limit.
  • Petrol hydrocarbons, total recoverable: 2 limits, 19 violations of any kind, 1 effluent exceedance, latest January 31, 2018, largest 113% over the limit.
  • Flow, in conduit or thru treatment plant: 4 limits, 37 violations of any kind, 0 effluent exceedances.
  • Lead, total [as Pb]: 2 limits, 16 violations of any kind, 0 effluent exceedances.
  • Aluminum, total [as Al]: 2 limits, 16 violations of any kind, 0 effluent exceedances.
  • Benzene: 2 limits, 16 violations of any kind, 0 effluent exceedances.
  • BTEX: 2 limits, 16 violations of any kind, 0 effluent exceedances.
  • E. coli: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • Coliform, fecal general: 0 limits, 3 violations of any kind, 0 effluent exceedances.
  • Mercury, total [as Hg]: 4 limits, 1 violation of any kind, 0 effluent exceedances.
  • Thallium, total [as Tl]: 1 limit, 1 violation of any kind, 0 effluent exceedances.
  • Discharge event observation [Visual Monitoring]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
  • June 24, 2025: Permit Violations - Violation Specified in Comment (ST6).
  • January 16, 2019: Permit Violations - Violation Specified in Comment (ST6).

Other permits held by EXPLORER PIPELINE COMPANY

EXPLORER PIPELINE - PORT ARTHUR STATION among its neighbors

EPA’s permit file holds 124 discharge permits in the Salt Bayou subwatershed (HUC 120402010300), TX0116891 among them. Its county holds 302, 16 of them major permits; TX0116891 is a minor permit.

Other permits in the Salt Bayou subwatershed (HUC 120402010300)

Identity

Facility as filedEXPLORER PIPELINE - PORT ARTHUR STATION
Permittee as filedEXPLORER PIPELINE COMPANY
NPDES IDTX0116891
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
IssuedSeptember 20, 2018
Expiration dateSeptember 20, 2023
AddressPort Arthur, TX 77640
Receiving waterUNNAMED DRAINAGE DITCH; MAIN CANAL C OF JEFFERSON
SubwatershedSalt Bayou (HUC 120402010300)
Other EPA IDs (FRS)RCRA handler TXD058260340; ICIS-AIR source TX0000004824500172

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
Oxygen demand, chem. [high level] [COD]2193January 31, 201595% over the limit
pH4342September 30, 2012
Oil & Grease2182January 31, 200753% over the limit
Petrol hydrocarbons, total recoverable2191January 31, 2018113% over the limit
Flow, in conduit or thru treatment plant4370
Lead, total [as Pb]2160
Aluminum, total [as Al]2160
Benzene2160
BTEX2160
E. coli240
Coliform, fecal general030
Mercury, total [as Hg]410
Thallium, total [as Tl]110
Discharge event observation [Visual Monitoring]200

Inspections, violations and enforcement

DateWhat EPA recordedAgency
June 24, 2025Permit Violations - Violation Specified in CommentST6
January 16, 2019Permit Violations - Violation Specified in CommentST6

Inspections

EPA’s inspection file holds no inspection for NPDES TX0116891.

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 TX0116891.

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Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

What this page shows

This public-records page covers Clean Water Act discharge permit NPDES TX0116891 for EXPLORER PIPELINE - PORT ARTHUR STATION in Port Arthur, TX, held by EXPLORER PIPELINE COMPANY, with a status of administratively continued and a Minor discharger class. The page lists 13 pollutants under a numeric limit and 4 pollutants with an effluent exceedance, and it notes the permit was issued September 20, 2018 and expired September 20, 2023.