Methanol
Methanol releases at Phillips 66 CO Sweeny Refinery Complex fell from 18k lb to 6k lb (65% lower) between 2023 and 2024.
TRI facility · TRI 2024 reporting year
Phillips 66 CO Sweeny Refinery Complex
Total reported releases 911k lb held roughly steady year over year (-1%). Total releases concentrations are roughly unchanged from 2010.
8189 OLD FM 524, Old Ocean, Texas · 324110 · Petroleum · operated by Phillips 66 Co
Anomaly engine
Notable Signals
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) at Phillips 66 CO Sweeny Refinery Complex have more than halved since 2010 (through 2024).
n-Hexane
n-Hexane at Phillips 66 CO Sweeny Refinery Complex have more than halved since 2010 (through 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 31% since 2010.
n-Hexane
n-Hexane concentrations have more than halved since 2010.
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) concentrations have more than halved since 2010.
Benzene
Benzene concentrations are roughly unchanged from 2010.
Propylene
Propylene concentrations have fallen 22% since 2010.
Diethanolamine
Diethanolamine concentrations are up 76% since 2010.
Hydrogen cyanide
Hydrogen cyanide concentrations have more than doubled since 2010.
Toluene
Toluene concentrations have fallen 36% since 2010.
Equity context · ACS 2018-2022 block-group demographics
Who Lives Next To This Facility
Within 3 miles of this facility (4 Census block groups, population-weighted demographics): a population of 3,033. Why we surface this →
22.4%
Low-income
39.9%
People of color
6.5%
Under age 5
16.7%
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.