Total reported releases
Total reported releases at Par Hawaii Refining LLC have risen 59% since 2010 (through 2024).
TRI facility · TRI 2024 reporting year
Par Hawaii Refining LLC
Total reported releases 165k lb held roughly steady year over year (+1%). Total releases concentrations are up 59% since 2010.
91-325 KOMOHANA ST, Kapolei, Hawaii · 324110 · Petroleum · operated by Par Pacific Holdings INC
Anomaly engine
Notable Signals
Chemicals reported · most recent year
What This Facility Releases
n-Hexane
n-Hexane concentrations are up 54% since 2010.
Ammonia
Ammonia concentrations have more than doubled since 2010.
Toluene
Toluene concentrations are up 82% since 2010.
Xylene (mixed isomers)
Xylene (mixed isomers) concentrations have more than doubled since 2010.
Benzene
Benzene concentrations are up 53% since 2010.
Cyclohexane
Cyclohexane concentrations have more than doubled since 2010.
Propylene
Propylene concentrations are up 39% since 2011.
Ethylbenzene
Ethylbenzene 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 (13 Census block groups, population-weighted demographics): a population of 23,927. Why we surface this →
17.9%
Low-income
82.7%
People of color
7.2%
Under age 5
13.0%
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.