Nitrate compounds (water dissociable; reportable only when in aqueous solution)
Nitrate compounds (water dissociable; reportable only when in aqueous solution) at Phillips 66 Ferndale Refinery have risen 87% since 2010 (through 2024).
TRI facility · TRI 2024 reporting year
Phillips 66 Ferndale Refinery
Total reported releases 245k lb fell meaningfully year over year (-33%). Total releases concentrations are roughly unchanged from 2010.
3901 UNICK RD, Ferndale, Washington · 324110 · Petroleum · operated by Phillips 66 Co
Anomaly engine
Notable Signals
N982
N982 releases at Phillips 66 Ferndale Refinery fell from 98k lb to 0 lb (100% lower) between 2023 and 2024.
N495
N495 releases at Phillips 66 Ferndale Refinery fell from 37k lb to 0 lb (100% lower) between 2023 and 2024.
Chemicals reported · most recent year
What This Facility Releases
Nitrate compounds (water dissociable; reportable only when in aqueous solution)
Nitrate compounds (water dissociable; reportable only when in aqueous solution) concentrations are up 87% since 2010.
Toluene
Toluene concentrations are up 14% since 2010.
Ethylene
Ethylene concentrations have more than doubled since 2018.
Cyclohexane
Cyclohexane concentrations have more than doubled since 2010.
Xylene (mixed isomers)
Xylene (mixed isomers) concentrations have fallen 27% since 2010.
Ammonia
Ammonia concentrations have more than doubled since 2010.
Hydrogen sulfide
Hydrogen sulfide concentrations have fallen 12% since 2012.
Benzene
Benzene concentrations are up 45% since 2010.
Equity context · ACS 2018-2022 block-group demographics
Who Lives Next To This Facility
Within 3 miles of this facility (1 Census block groups, population-weighted demographics): a population of 1,779. Why we surface this →
15.3%
Low-income
6.2%
People of color
8.7%
Under age 5
21.1%
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.