Total reported releases
Total reported releases at Hf Sinclair Woods Cross Refining LLC have more than doubled since 2010 (through 2024).
TRI facility · TRI 2024 reporting year
Hf Sinclair Woods Cross Refining LLC
Total reported releases 195k lb fell sharply year over year (-49%). Total releases concentrations have more than doubled since 2010.
393 S 800 W, Woods Cross, Utah · 324110 · Petroleum · operated by Hf Sinclair CORP
Anomaly engine
Notable Signals
Ammonia
Ammonia releases at Hf Sinclair Woods Cross Refining LLC fell from 244k lb to 56k lb (77% lower) between 2023 and 2024.
Chemicals reported · most recent year
What This Facility Releases
Ammonia
Ammonia concentrations have more than doubled since 2010.
n-Hexane
n-Hexane concentrations have more than doubled since 2010.
Hydrogen cyanide
Hydrogen cyanide concentrations have fallen 10% since 2017.
Ethylene
Ethylene concentrations have more than doubled since 2010.
Toluene
Toluene concentrations are up 81% since 2010.
Xylene (mixed isomers)
Xylene (mixed isomers) concentrations have more than doubled since 2010.
Benzene
Benzene concentrations are roughly unchanged from 2010.
1,2,4-Trimethylbenzene
1,2,4-Trimethylbenzene concentrations have more than doubled since 2010.
Equity context · ACS 2018-2022 block-group demographics
Who Lives Next To This Facility
Within 3 miles of this facility (47 Census block groups, population-weighted demographics): a population of 73,428. Why we surface this →
19.7%
Low-income
17.7%
People of color
8.9%
Under age 5
12.7%
Over age 64
Source: Census ACS 2018-2022 block-group demographics, population-weighted across the 3-mile buffer around this facility (from USEPA-clone/EJAM-open blockgroupstats). Indicator-level percentile and EJ-disparity scores are surfaced on the county page and the state page — they describe wider regional exposure burdens, not effects attributable to a single facility.
Source. EPA Toxics Release Inventory · retrieved 2026-05-07. Reporting year 2024. TRI is a federal public-domain dataset under 17 USC §105.
What this is not. TRI quantifies releases reported by the facility under EPCRA §313 — not ambient air or water concentrations measured at receptors. We do not attribute individual health outcomes to specific facilities; that exceeds what the data can support.