ULTRAMAR INC WILMINGTON REFINERY
Wilmington, CA · Parent: VALERO ENERGY CORP
Quick Facts
Chemical Releases
Aggregated across all reporting years (2023–2023). Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Ammonia | 76.0K lbs | \u2014 |
| Hydrogen cyanide | 47.0K lbs | \u2014 |
| Hydrogen sulfide | 10.2K lbs | \u2014 |
| Phenol | 4.1K lbs | \u2014 |
| n-Hexane | 3.7K lbs | \u2014 |
| Carbonyl sulfide | 3.4K lbs | \u2014 |
| Toluene | 2.5K lbs | \u2014 |
| Xylene (mixed isomers) | 1.5K lbs | \u2014 |
| Benzene | 1.5K lbs | Carcinogen |
| Propylene | 840 lbs | \u2014 |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 673 lbs | \u2014 |
| Ethylbenzene | 532 lbs | Carcinogen |
| Carbon disulfide | 341 lbs | \u2014 |
| 1,2,4-Trimethylbenzene | 267 lbs | \u2014 |
| Ethylene | 263 lbs | \u2014 |
| Cyclohexane | 206 lbs | \u2014 |
| 1,3-Butadiene | 146 lbs | Carcinogen |
| Phenanthrene | 61 lbs | \u2014 |
| Lead compounds | 56 lbs | \u2014 |
| Cobalt compounds | 36 lbs | Carcinogen |
| Naphthalene | 34 lbs | Carcinogen |
| Methanol | 30 lbs | \u2014 |
| Cumene | 19 lbs | Carcinogen |
| Cresol (mixed isomers) | 17 lbs | \u2014 |
| Hydrogen fluoride | 9 lbs | \u2014 |
| Mercury compounds | 6 lbs | \u2014 |
| Styrene | 3 lbs | Carcinogen |
| Benzo[g,h,i]perylene | 2 lbs | \u2014 |
| Polycyclic aromatic compounds | 2 lbs | Carcinogen |
| Anthracene | 1 lbs | \u2014 |
| Dioxin and dioxin-like compounds | 0 lbs | Carcinogen |
| Tetrachloroethylene | 0 lbs | Carcinogen |
Location
About TRI Data
Data comes from the EPA Toxic Release Inventory (TRI) program. Facilities that manufacture, process, or otherwise use listed toxic chemicals above threshold amounts are required to report annually to the EPA.
Release quantities are self-reported by the facility and may represent estimates rather than exact measurements. "Total releases" includes releases to air, water, land, and off-site transfers for disposal. Quantities shown here are aggregated across all available reporting years.
PlainEnviro presents this data without advocacy framing. The presence of a facility in the TRI database does not by itself indicate a health risk. For site-specific health questions, consult your local environmental or health agency.