NPDES TX0004626 · Clean Water Act
PASEDENA REFINERY SYSTEM WWTP, Pasadena, TX: NPDES TX0004626 discharge permit, effluent exceedances, inspections, penalties
PASEDENA REFINERY SYSTEM WWTP, Pasadena, Texas: Individual permit TX0004626, held by PASADENA REFINING SYSTEM, INC.; Administratively continued; issued March 6, 2019, term to March 6, 2024; discharges to HOUSTON SHIP CHANNEL TIDAL/BUFFALO BAYOU TIDAL.
1 of the 7 pollutants listed for NPDES TX0004626 have no violation or effluent exceedance.
- pH: 6 limits, 24 violations of any kind, 8 effluent exceedances, latest October 31, 2022.
- Benzene, ethylbenzene, toluene, xylene combination: 1 limit, 9 violations of any kind, 7 effluent exceedances, latest March 31, 2025, largest 726% over the limit.
- Oil & Grease: 3 limits, 19 violations of any kind, 4 effluent exceedances, latest June 30, 2025, largest 480% over the limit.
- Carbon, tot organic [TOC]: 3 limits, 12 violations of any kind, 4 effluent exceedances, latest February 28, 2026, largest 171% over the limit.
- Flow, in conduit or thru treatment plant: 6 limits, 4 violations of any kind.
- Iron, total [as Fe]: 1 limit, 1 violation of any kind.
- Hydrocarbons, petroleum: 1 limit.
PASEDENA REFINERY SYSTEM WWTP among its neighbors
301 discharge permits are in the Vince Bayou-Buffalo Bayou subwatershed (HUC 120401040703); TX0004626 is one. Its county: 4,455, 195 major; TX0004626 is minor permit.
Other permits in the Vince Bayou-Buffalo Bayou subwatershed (HUC 120401040703)
- 019-HOU3-22 HOUSTON CONCRETE SILOS, Houston: TXR1594NZ, minor, term to 2028-03-04
- 1111 FANNIN, Houston: TXR1556LZ, minor, term to 2028-03-04
- 225 RAIL YARD, Pasadena: TXR15425W, minor, term to 2023-03-04
- 500 MAYO SHELL ROAD, Galena Park: TXR05GS62, minor, term to 2026-08-13
- 69TH ST WWTP, Houston: TX0096172, major, term to 2002-09-01
- 8815 MISSISSIPPI, Houston: TXR05GD86, minor, term to 2026-08-13
- 8825 MISSISSIPPI STREET, Houston: TXR05GE47, minor, term to 2026-08-13
- A AND A METALS, Houston: TXRNEBJ94, minor, term to 2026-08-13
- AEI RED BLUFF, Pasadena: TXRNECR17, minor, term to 2026-08-13
- AES DEEPWATER COGENERATION PLA, Pasadena: TX0128830, minor, term to 2017-09-01
Identity
| Facility | PASEDENA REFINERY SYSTEM WWTP |
|---|---|
| Permittee | PASADENA REFINING SYSTEM, INC. |
| NPDES ID | TX0004626 |
| Status | Administratively continued |
| Type | Individual permit |
| Class | Minor |
| Facility type | Non-POTW |
| Issued | March 6, 2019 |
| Expires | March 6, 2024 |
| Address | Pasadena, TX 77506 |
| Receiving water | HOUSTON SHIP CHANNEL TIDAL/BUFFALO BAYOU TIDAL |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Vince Bayou-Buffalo Bayou (HUC 120401040703) |
| SIC | 2911 – Petroleum Refining |
| Other EPA IDs (FRS) | RCRA handler TXD008091290; ICIS-AIR source TX0000004820100006 |
NPDES TX0004626: effluent limits and exceedances
PASEDENA REFINERY SYSTEM WWTP (NPDES TX0004626): 7 pollutants on file, 7 limited; 6 with a violation of any kind, 4 with an exceedance.
| Pollutant | Limits | Violations | Exceedances | Latest | Largest, as filed |
|---|---|---|---|---|---|
| pH | 6 | 24 | 8 | October 31, 2022 | |
| Benzene, ethylbenzene, toluene, xylene combination | 1 | 9 | 7 | March 31, 2025 | 726% over the limit |
| Oil & Grease | 3 | 19 | 4 | June 30, 2025 | 480% over the limit |
| Carbon, tot organic [TOC] | 3 | 12 | 4 | February 28, 2026 | 171% over the limit |
| Flow, in conduit or thru treatment plant | 6 | 4 | 0 | ||
| Iron, total [as Fe] | 1 | 1 | 0 | ||
| Hydrocarbons, petroleum | 1 | 0 | 0 |
NPDES TX0004626: inspections, violations and enforcement
NPDES TX0004626 (PASEDENA REFINERY SYSTEM WWTP): no single-event violation, inspection, formal enforcement action and informal enforcement action on file.
Watch NPDES TX0004626
NPDES TX0004626: one email when its EPA record changes — $99/month.
Permits near NPDES TX0004626
NPDES TX0004626: 7 pollutant rows, 0 dated events; ICIS-NPDES download, loaded October 14, 2026.