Total reported releases
Total reported releases at Valero Refining - New Orleans LLC have more than doubled since 2010 (through 2024).
TRI facility · TRI 2024 reporting year
Valero Refining - New Orleans LLC
Total reported releases 671k lb held roughly steady year over year (-4%). Total releases concentrations have more than doubled since 2010.
14902 RIVER RD, Norco, Louisiana · 324110 · Petroleum · operated by Valero Energy CORP
Anomaly engine
Notable Signals
Carbon disulfide
Carbon disulfide releases at Valero Refining - New Orleans LLC rose from 7k lb to 21k lb (3.0×) between 2023 and 2024.
Nitrate compounds (water dissociable; reportable only when in aqueous solution)
Nitrate compounds (water dissociable; reportable only when in aqueous solution) releases at Valero Refining - New Orleans LLC fell from 99k lb to 26k lb (74% lower) between 2023 and 2024.
Chemicals reported · most recent year
What This Facility Releases
Hydrogen cyanide
Hydrogen cyanide concentrations have more than halved since 2012.
Ammonia
Ammonia concentrations are up 44% 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 doubled since 2010.
Toluene
Toluene concentrations have more than doubled since 2010.
n-Hexane
n-Hexane concentrations are up 91% since 2010.
Nitrate compounds (water dissociable; reportable only when in aqueous solution)
Nitrate compounds (water dissociable; reportable only when in aqueous solution) concentrations have more than doubled since 2010.
Xylene (mixed isomers)
Xylene (mixed isomers) concentrations have more than doubled since 2010.
Carbon disulfide
Carbon disulfide 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 (12 Census block groups, population-weighted demographics): a population of 18,438. Why we surface this →
22.5%
Low-income
29.0%
People of color
5.3%
Under age 5
14.7%
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.