EPA TRI Facility · Petroleum
US Oil & Refining Co
Tacoma, WA · Parent: Par Pacific Holdings Inc
- Total releases
- 526.5K lbs
- Chemicals reported
- 16
- Carcinogens
- 5
- Primary pathway
- Air Releases
AIR Form-R mix
US Oil & Refining Co: how the 526.5K lbs splits
526.5K lbs across all reported pathways
- Air Releases 524.4K lbs 99.6%
- Water Discharges 1.6K lbs 0.3%
- Off-site Transfers 509 lbs 0.1%
- Land Disposal 0 lbs <0.1%
US Oil & Refining Co's 526.5K lbs Form-R total is AIR - air releases is 99.6% of the bar. Next segment: water discharges at 0.3%. Leading chemical by pounds: Ammonia.
Carcinogen-classified pounds vs other reported pounds
Same cumulative TRI total as above, split by EPA/IARC carcinogen classification on each chemical: pounds share, not chemical count. Classification is not a site health-risk score.
MID volume AIR pathway CARC-LEAN
US Oil & Refining Co is an EPA Toxics Release Inventory reporter in Tacoma, WA, in the petroleum sector. It reported 85.4K lbs of releases across 15 chemicals in 2023, and 526.5K lbs in total across its 2019-2023 reporting years. That ranks 1,886 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Washington's 311 reporting TRI sites, pounds #1 is not chemical-count #1. US Oil & Refining Co is pounds #33 and chemical-count #13 at 526.5K lbs. Lamb Weston Inc Richland Facility leads reported pounds (13.1M lbs) at 3 chemicals (chemical-count #106). Hf Sinclair Puget Sound Refining LLC leads chemical count at 46 chemicals (711.7K lbs, pounds #26). Reported volume fell against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Pacific Functional Fluids; Arclin Surfaces LLC; Associated Petroleum Products Inc; Pabco Roofing Products. Similar-scale Petroleum peers outside Washington: Oxbow Calcining LLC; Citgo Refining & Chemicals Co Lp-West Plant; Phillips 66 Los Angeles Refinery Carson Plant; Sonneborn LLC. Other Par Pacific Holdings Inc sites in this extract: Par Montana Billings Refinery; Wyoming Refining Co; Par West Refinery; Par Montana Spokane Terminal. Largest disclosed chemicals by pounds: Ammonia; n-Hexane; Toluene; Xylene (mixed isomers).
US Oil & Refining Co stamps MID volume with a dominant AIR pathway (99.6% air releases) across 16 chemicals · 5 carcinogen-classified. Cumulative Form-R extract: 526.5K lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Oxbow Calcining LLC and Citgo Refining & Chemicals Co Lp-West Plant.
US Oil & Refining Co vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
527K lbs Top 7% higher than 93% of 25,986 reporting TRI facilities
Each bar is a $1M-wide band; taller bars hold more reporting TRI facilities. The dashed line and filled bar mark this facility. Hover, focus, or tap a bar for its full count, share, and position.
Source U.S. Environmental Protection Agency, Toxics Release Inventory · 2023 reporting year
US Oil & Refining Co: Ammonia-led volume
Among the 902 Petroleum facilities in this database, US Oil & Refining Co reports the 106th-largest volume, placing it in the top 11.8% of its sector. Its reported volume is concentrated rather than spread: Ammonia alone is 60.1% of the total. Scale peers outside Washington include Oxbow Calcining LLC and Citgo Refining & Chemicals Co Lp-West Plant.
Concentrated means ≥60% of US Oil & Refining Co's pounds in one chemical - here Ammonia at 60.1%. Not a toxicity score.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- US Oil & Refining Co's total reported releases fell from 88.6 thousand lb in 2022 to 85.4 thousand lb in 2023, based on EPA TRI filings.
- US Oil & Refining Co's off-site transfers rose from 50 lb in 2022 to 137 lb in 2023, based on EPA TRI filings.
- US Oil & Refining Co's air releases fell from 88.3 thousand lb in 2022 to 85.0 thousand lb in 2023, based on EPA TRI filings.
US Oil & Refining Co Form-R facts
Compare this facility
See how US Oil & Refining Co stacks up against nearby facilities and the typical reporter.
5850.2× more than the comparison
4.0× more than the comparison
Comparison reflects reported pounds and chemical counts, not toxicity or health risk. Averages cover facilities reporting any release.
How does this facility release toxic chemicals?
How US Oil & Refining Co releases toxic chemicals into the environment. Total: 526.5K lbs.
Emissions Trend Summary
From 2019 to 2023, total releases decreased by 43% (150.0K lbs to 85.4K lbs).
US Oil & Refining Co: annual Form-R pounds
MID site · AIR pathway · TRI years 2019–2023
- 2019 0
- 2020 0
- 2021 0
- 2022 0
- 2023 0
What this shows US Oil & Refining Co year-over-year reported totals (decreased by 43% from 2019 to 2023). TRI figures are self-reported estimates and can swing with production, waste handling, and reporting changes, not only with controls. Lead chemical in the extract: Ammonia.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 150.0K lbs | 15 |
| 2020 | 116.3K lbs | 15 |
| 2021 | 86.2K lbs | 15 |
| 2022 | 88.6K lbs | 15 |
| 2023 | 85.4K lbs | 15 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 5 of 16 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Ammonia | 316.7K lbs | - |
| n-Hexane | 61.7K lbs | - |
| Toluene | 49.9K lbs | - |
| Xylene (mixed isomers) | 45.9K lbs | - |
| Cyclohexane | 21.7K lbs | - |
| Benzene | 11.4K lbs | Carcinogen |
| 1,2,4-Trimethylbenzene | 8.6K lbs | - |
| Ethylbenzene | 7.4K lbs | Carcinogen |
| Hydrogen sulfide | 2.2K lbs | - |
| Naphthalene | 805 lbs | Carcinogen |
| Polycyclic aromatic compounds | 253 lbs | Carcinogen |
| Lead | 128 lbs | Carcinogen |
| Mercury And Mercury Compounds | 5 lbs | - |
| Benzo[g,h,i]perylene | 4 lbs | - |
| Mercury compounds | 4 lbs | - |
| Certain glycol ethers | 0 lbs | - |
US Oil & Refining Co · AIR-pathway site
Nearest TRI Facilities to US Oil & Refining Co
Closest other reporters in Washington - including Pacific Functional Fluids, Arclin Surfaces LLC, Associated Petroleum Products Inc, ordered by distance.
Showing 8 of 310 other reporting facilities in Washington.
Similar Petroleum Facilities
Other Petroleum facilities with similar total release volumes (±80%), outside Washington - e.g. Oxbow Calcining LLC, Citgo Refining & Chemicals Co Lp-West Plant, Phillips 66 Los Angeles Refinery Carson Plant.
Compare beyond Washington
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest US Oil & Refining Co on cumulative reported pounds (526.5K lbs) and distinct chemical count (16). Release-pound peers include Lsc Communications / Mattoon, Nd Paper Inc., Metalsamerica. Chemical-count peers include Surpass Chemical Co. Inc., The Federal Metal Co, Wheelabrator Frackville Energy Co Inc. Neighborhoods are forced disjoint so each axis surfaces a different set of sites.
Similar reported release pounds
Nearest out-of-state reporters (≥1,000 lbs) by absolute TRI pounds, not same-industry or same-county neighbors.
Similar chemical count
Nearest out-of-state reporters by distinct Form-R chemicals (deduped against the release-pound neighborhood).
Other Par Pacific Holdings Inc Facilities
Same-parent TRI sites ranked by reported releases - including Par Montana Billings Refinery, Wyoming Refining Co, Par West Refinery.
About TRI Data
Data as of 2023 reporting year. Source: U.S. Environmental Protection Agency (EPA) Toxic Release Inventory.
On this page the largest disclosed chemicals include Ammonia, n-Hexane, Toluene, Xylene (mixed isomers); nearby reporters include Pacific Functional Fluids. US Oil & Refining Co stamps MID volume · AIR pathway · CARC-LEAN carcinogen-lbs on this Form-R extract. Totals are self-reported estimates under EPCRA §313, not measured stack emissions or a health-risk score.
Use and verify this record
This US Oil & Refining Co TRI extract (MID · AIR · CARC-LEAN · lead Ammonia) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
US Oil & Refining Co totals are self-reported EPCRA §313 estimates for Tacoma, WA, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 324110 · Petroleum. 8.4% of Pierce TRI pounds in this extract. Nearest ABS peer: Lsc Communications / Mattoon (Δ 67 lbs). Pounds ≠ exposure.
US Oil & Refining Co stamps MID volume · AIR pathway · CARC-LEAN · lead Ammonia. PlainEnviro renders this EPA Form-R extract from its pipeline; no figure is typed in by an editor. Corrections: editorial policy.
All federal data sources used on this page
- EPA Toxics Release Inventory (TRI) Basic Data Files - annual self-reported chemical-release filings. epa.gov
- EPA TRI Program reference - how chemicals and reported releases are counted. epa.gov
- EPA Facility Registry Service - facility location and identity. epa.gov
- EPA ECHO - regulatory and compliance context. epa.gov
- EPA Envirofacts - the EPA data warehouse exposing these datasets. epa.gov