Total reported releases
Total reported releases at Equistar Chemicals LP Chocolate Bayou Polymers Plant have more than three-quarters since 2010 (through 2024).
TRI facility · TRI 2024 reporting year
Equistar Chemicals LP Chocolate Bayou Polymers Plant
Total reported releases 12k lb rose modestly year over year (+8%). Total releases concentrations have more than halved since 2010.
2 MILES W OF FM 2917 ON FM 2004, Alvin, Texas · 325211 · Chemicals · operated by Lyondellbasell Finance Co
Anomaly engine
Notable Signals
Chemicals reported · most recent year
What This Facility Releases
Ethylene
Ethylene concentrations are up 13% since 2010.
Equity context · ACS 2018-2022 block-group demographics
Who Lives Next To This Facility
Within 3 miles of this facility (18 Census block groups, population-weighted demographics): a population of 24,040. Why we surface this →
30.2%
Low-income
52.6%
People of color
5.7%
Under age 5
15.4%
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.