EPA TRI Facility · Chemicals
Westlake Epoxy Inc.- Deer Park Site
Deer Park, TX · Parent: Westlake Corp
- Total releases
- 852.3K lbs
- Chemicals reported
- 4
- Carcinogens
- 2
- Primary pathway
- Off-site Transfers
OFFSITE Form-R mix
Westlake Epoxy Inc.- Deer Park Site: how the 852.3K lbs splits
852.3K lbs across all reported pathways
- Off-site Transfers 606.8K lbs 71.2%
- Air Releases 245.5K lbs 28.8%
Westlake Epoxy Inc.- Deer Park Site's 852.3K lbs Form-R total is OFFSITE - off-site transfers is 71.2% of the bar. Next segment: air releases at 28.8%. Leading chemical by pounds: 4,4'-Isopropylidenediphenol.
Carcinogen-classified pounds vs other reported pounds
Same cumulative TRI total as above, split by EPA/IARC carcinogen classification on each chemical: pounds share, not chemical count. Classification is not a site health-risk score.
MID volume OFFSITE pathway CARC-LEAN
Westlake Epoxy Inc.- Deer Park Site is an EPA Toxics Release Inventory reporter in Deer Park, TX, in the chemicals sector. It reported 217.1K lbs of releases across 4 chemicals in 2023, and 852.3K lbs in total across its 2019-2023 reporting years. That ranks 1,434 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Texas's 2,016 reporting TRI sites, pounds #1 is not chemical-count #1. Westlake Epoxy Inc.- Deer Park Site is pounds #149 and chemical-count #735 at 852.3K lbs. Ascend Performance Materials-Chocolate Bayou Plant leads reported pounds (94.0M lbs) at 36 chemicals (chemical-count #35). Veolia Es Technical Solutions LLC Port Arthur Facility leads chemical count at 246 chemicals (1.5M lbs, pounds #112). Reported volume rose against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Deer Park Refining LP; Shell Chemical LP; Oxy Vinyls LP Deer Park-Vcm Plant; Lubrizol Corp Deer Park Facility. Similar-scale Chemicals peers outside Texas: Formosa Plastics Corp Louisiana; Addis Carbon Black Plant; Westlake Vinyls Inc. - Pvc Plant; Emd Performance Materials Corp. Other Westlake Corp sites in this extract: Westlake Longview Corp; Westlake US 2 LLC; Westlake Polymers LLC; Westlake Vinyls Inc. Largest disclosed chemicals by pounds: 4,4'-Isopropylidenediphenol; Phenol; Epichlorohydrin; Glycidol.
Westlake Epoxy Inc.- Deer Park Site stamps MID volume with a dominant OFFSITE pathway (71.2% off-site transfers) across 4 chemicals · 2 carcinogen-classified. Cumulative Form-R extract: 852.3K lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Formosa Plastics Corp Louisiana and Addis Carbon Black Plant.
Westlake Epoxy Inc.- Deer Park Site vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
852K lbs Top 6% higher than 94% of 25,986 reporting TRI facilities
Each bar is a $1M-wide band; taller bars hold more reporting TRI facilities. The dashed line and filled bar mark this facility. Hover, focus, or tap a bar for its full count, share, and position.
Source U.S. Environmental Protection Agency, Toxics Release Inventory · 2023 reporting year
Westlake Epoxy Inc.- Deer Park Site: 4,4'-Isopropylidenediphenol-led volume
Among the 3,917 Chemicals facilities in this database, Westlake Epoxy Inc.- Deer Park Site reports the 290th-largest volume, placing it in the top 7.4% of its sector. Its reported volume is concentrated rather than spread: 4,4'-Isopropylidenediphenol alone is 76.9% of the total. Scale peers outside Texas include Formosa Plastics Corp Louisiana and Addis Carbon Black Plant.
Concentrated means ≥60% of Westlake Epoxy Inc.- Deer Park Site's pounds in one chemical - here 4,4'-Isopropylidenediphenol at 76.9%. Not a toxicity score.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Westlake Epoxy Inc.- Deer Park Site's total reported releases rose from 207.0 thousand lb in 2022 to 217.1 thousand lb in 2023, based on EPA TRI filings.
- Westlake Epoxy Inc.- Deer Park Site's off-site transfers rose from 160.4 thousand lb in 2022 to 168.4 thousand lb in 2023, based on EPA TRI filings.
- Westlake Epoxy Inc.- Deer Park Site's air releases rose from 46.7 thousand lb in 2022 to 48.8 thousand lb in 2023, based on EPA TRI filings.
Westlake Epoxy Inc.- Deer Park Site Form-R facts
Compare this facility
See how Westlake Epoxy Inc.- Deer Park Site stacks up against nearby facilities and the typical reporter.
77% less than the comparison
92% less than the comparison
Comparison reflects reported pounds and chemical counts, not toxicity or health risk. Averages cover facilities reporting any release.
How does this facility release toxic chemicals?
How Westlake Epoxy Inc.- Deer Park Site releases toxic chemicals into the environment. Total: 852.3K lbs.
Emissions Trend Summary
From 2019 to 2023, total releases increased by 73% (125.2K lbs to 217.1K lbs).
Westlake Epoxy Inc.- Deer Park Site: annual Form-R pounds
MID site · OFFSITE pathway · TRI years 2019–2023
- 2019 0
- 2020 0
- 2021 0
- 2022 0
- 2023 0
What this shows Westlake Epoxy Inc.- Deer Park Site year-over-year reported totals (increased by 73% from 2019 to 2023). TRI figures are self-reported estimates and can swing with production, waste handling, and reporting changes, not only with controls. Lead chemical in the extract: 4,4'-Isopropylidenediphenol.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 125.2K lbs | 4 |
| 2020 | 139.1K lbs | 4 |
| 2021 | 163.8K lbs | 4 |
| 2022 | 207.0K lbs | 4 |
| 2023 | 217.1K lbs | 4 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 2 of 4 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| 4,4'-Isopropylidenediphenol | 655.1K lbs | - |
| Phenol | 157.4K lbs | - |
| Epichlorohydrin | 39.5K lbs | Carcinogen |
| Glycidol | 278 lbs | Carcinogen |
Westlake Epoxy Inc.- Deer Park Site · OFFSITE-pathway site
Nearest TRI Facilities to Westlake Epoxy Inc.- Deer Park Site
Closest other reporters in Texas - including Deer Park Refining LP, Shell Chemical LP, Oxy Vinyls LP Deer Park-Vcm Plant, ordered by distance.
Showing 8 of 2,015 other reporting facilities in Texas.
Similar Chemicals Facilities
Other Chemicals facilities with similar total release volumes (±80%), outside Texas - e.g. Formosa Plastics Corp Louisiana, Addis Carbon Black Plant, Westlake Vinyls Inc. - Pvc Plant.
Compare beyond Texas
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Westlake Epoxy Inc.- Deer Park Site on cumulative reported pounds (852.3K lbs) and distinct chemical count (4). Release-pound peers include Kellanova - Cary Bakery, Lhoist Na of Alabama Llc-Montevallo Plant, Sloan Valve Co. Chemical-count peers include Hamilton Sundstrand de Puerto Rico Inc., Abb Installation Products Caribe LLC, Solenis LLC. Neighborhoods are forced disjoint so each axis surfaces a different set of sites.
Similar reported release pounds
Nearest out-of-state reporters (≥1,000 lbs) by absolute TRI pounds, not same-industry or same-county neighbors.
- Kellanova - Cary Bakery Cary, NC · Food 852.9K lbs reported
- Lhoist Na of Alabama Llc-Montevallo Plant Calera, AL · Nonmetallic Mineral Product 850.9K lbs reported
- Sloan Valve Co Augusta, AR · Primary Metals 850.2K lbs reported
- Owensboro Municipal Utilities Elmer Smith Station Owensboro, KY · Electric Utilities 849.9K lbs reported
Similar chemical count
Nearest out-of-state reporters by distinct Form-R chemicals (deduped against the release-pound neighborhood).
- Hamilton Sundstrand de Puerto Rico Inc. Santa Isabel, PR · Transportation Equipment 4 chemicals
- Abb Installation Products Caribe LLC Vega Baja, PR · Electrical Equipment 4 chemicals
- Solenis LLC Chicopee, MA · Chemicals 4 chemicals
- Adhesive Applications Inc. - O'Neill St Easthampton Easthampton, MA · Miscellaneous Manufacturing 4 chemicals
Other Westlake Corp Facilities
Same-parent TRI sites ranked by reported releases - including Westlake Longview Corp, Westlake US 2 LLC, Westlake Polymers LLC.
About TRI Data
Data as of 2023 reporting year. Source: U.S. Environmental Protection Agency (EPA) Toxic Release Inventory.
On this page the largest disclosed chemicals include 4,4'-Isopropylidenediphenol, Phenol, Epichlorohydrin, Glycidol; nearby reporters include Deer Park Refining LP. Westlake Epoxy Inc.- Deer Park Site stamps MID volume · OFFSITE pathway · CARC-LEAN carcinogen-lbs on this Form-R extract. Totals are self-reported estimates under EPCRA §313, not measured stack emissions or a health-risk score.
Use and verify this record
This Westlake Epoxy Inc.- Deer Park Site TRI extract (MID · OFFSITE · CARC-LEAN · lead 4,4'-Isopropylidenediphenol) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Westlake Epoxy Inc.- Deer Park Site totals are self-reported EPCRA §313 estimates for Deer Park, TX, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 325211 · Chemicals. 0.4% of Harris TRI pounds in this extract. Nearest ABS peer: Sanderson Farms Tyler Processing (Δ 463 lbs). Pounds ≠ exposure.
Westlake Epoxy Inc.- Deer Park Site stamps MID volume · OFFSITE pathway · CARC-LEAN · lead 4,4'-Isopropylidenediphenol. PlainEnviro renders this EPA Form-R extract from its pipeline; no figure is typed in by an editor. Corrections: editorial policy.
All federal data sources used on this page
- EPA Toxics Release Inventory (TRI) Basic Data Files - annual self-reported chemical-release filings. epa.gov
- EPA TRI Program reference - how chemicals and reported releases are counted. epa.gov
- EPA Facility Registry Service - facility location and identity. epa.gov
- EPA ECHO - regulatory and compliance context. epa.gov
- EPA Envirofacts - the EPA data warehouse exposing these datasets. epa.gov