Cyanide compounds
Cyanide compounds at Cornerstone Chemical CO LLC have more than doubled since 2010 (through 2024).
TRI facility · TRI 2024 reporting year
Cornerstone Chemical CO LLC
Total reported releases 12.2M lb fell modestly year over year (-11%). Total releases concentrations have fallen 37% since 2010.
10800 RIVER RD, Westwego, Louisiana · 325199 · Chemicals · operated by Ccc Parent LLC
Anomaly engine
Notable Signals
Cyanide compounds
Cyanide compounds releases at Cornerstone Chemical CO LLC rose from 564k lb to 1.0M lb between 2023 and 2024.
Acetamide
Acetamide releases at Cornerstone Chemical CO LLC fell from 362k lb to 144k lb (60% lower) 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 Cornerstone Chemical CO LLC fell from 350k lb to 174k lb (50% lower) between 2023 and 2024.
Showing the 4 most editorially weighted signals out of 5. Lower-severity signals fold into the chemical breakdown and history charts below.
Chemicals reported · most recent year
What This Facility Releases
Acetonitrile
Acetonitrile concentrations have fallen 18% since 2010.
Ammonia
Ammonia concentrations have fallen 13% since 2010.
Cyanide compounds
Cyanide compounds concentrations have more than doubled since 2010.
Methanol
Methanol concentrations have more than halved since 2010.
Acrylamide
Acrylamide concentrations have more than halved 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 2012.
Acetamide
Acetamide concentrations have more than doubled since 2010.
Pyridine
Pyridine 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 (29 Census block groups, population-weighted demographics): a population of 34,032. Why we surface this →
41.7%
Low-income
55.8%
People of color
5.9%
Under age 5
16.6%
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.