Total reported releases 117k lb held roughly steady year over year (+2%). Total releases concentrations have more than halved since 2010.
ONE VALERO WAY, Ardmore, Oklahoma · 324110 · Petroleum · operated by Valero Energy CORP
Nitrate compounds (water dissociable; reportable only when in aqueous solution) at Valero Refining CO -Oklahoma Valero Ardmore Refinery have more than three-quarters since 2010 (through 2024).
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) at Valero Refining CO -Oklahoma Valero Ardmore Refinery have more than halved since 2010 (through 2024).
Total reported releases at Valero Refining CO -Oklahoma Valero Ardmore Refinery have more than halved since 2010 (through 2024).
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) concentrations have more than halved since 2010.
Nitrate compounds (water dissociable; reportable only when in aqueous solution) concentrations have more than halved since 2010.
n-Hexane concentrations are roughly unchanged from 2010.
Xylene (mixed isomers) concentrations are roughly unchanged from 2010.
Toluene concentrations are roughly unchanged from 2010.
Ammonia concentrations have fallen 28% since 2010.
Benzene concentrations are roughly unchanged from 2010.
1,2,4-Trimethylbenzene concentrations are roughly unchanged from 2010.
Within 3 miles of this facility (18 Census block groups, population-weighted demographics): a population of 15,469. Why we surface this →
Low-income
People of color
Under age 5
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.