Total reported releases 262k lb rose modestly year over year (+6%). Total releases concentrations are up 37% since 2010.
1700 NUECES BAY BLVD, Corpus Christi, Texas · 324110 · Petroleum · operated by Koch INC
Nitrate compounds (water dissociable; reportable only when in aqueous solution) at Flint Hills Resources Corpus Christi LLC - East Plant have risen 52% since 2010 (through 2024).
Hydrogen cyanide at Flint Hills Resources Corpus Christi LLC - East Plant have more than three-quarters since 2011 (through 2024).
Nitrate compounds (water dissociable; reportable only when in aqueous solution) concentrations are up 52% since 2010.
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) concentrations have more than doubled since 2010.
Hydrogen cyanide concentrations have more than halved since 2011.
Propylene concentrations have more than doubled since 2010.
Toluene concentrations have fallen 42% since 2010.
Ozone concentrations have fallen 42% since 2013.
Hydrogen sulfide concentrations have more than doubled since 2012.
Xylene (mixed isomers) concentrations have more than halved since 2010.
Within 3 miles of this facility (45 Census block groups, population-weighted demographics): a population of 41,019. 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.