EPA TRI Facility · Chemicals
Westlake Chemicals & Vinyls LLC
Plaquemine, LA · Parent: Westlake Chemical Corp
- Total releases
- 1.7M lbs
- Chemicals reported
- 59
- Carcinogens
- 24
- Primary pathway
- Air Releases
MIXED Form-R mix
Westlake Chemicals & Vinyls LLC: how the 1.7M lbs splits
1.7M lbs across all reported pathways
- Air Releases 935.3K lbs 54.6%
- Water Discharges 687.8K lbs 40.2%
- Off-site Transfers 82.1K lbs 4.8%
- Land Disposal 7.6K lbs 0.4%
Westlake Chemicals & Vinyls LLC's 1.7M lbs Form-R total is MIXED - air releases is 54.6% of the bar. Next segment: water discharges at 40.2%. Leading chemical by pounds: Nitrate compounds (water dissociable; reportable only when in aqueous solution).
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.
HEAVY volume MIXED pathway CARC-LEAN
Westlake Chemicals & Vinyls LLC is an EPA Toxics Release Inventory reporter in Plaquemine, LA, in the chemicals sector. It reported 320.8K lbs of releases across 57 chemicals in 2023, and 1.7M lbs in total across its 2019-2023 reporting years. That ranks 942 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Louisiana's 417 reporting TRI sites, pounds #1 is not chemical-count #1. Westlake Chemicals & Vinyls LLC is pounds #63 and chemical-count #3 at 1.7M lbs. Bayer Cropscience LP leads reported pounds (81.9M lbs) at 17 chemicals (chemical-count #52). Eco-Services Operations leads chemical count at 68 chemicals (163.5K lbs, pounds #136). Reported volume fell against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Shintech Plaquemine Plant; SE Tylose Louisiana LLC; Flopam Inc; Enlink Processing Services LLC - Plaquemine Ngl Fractionatio. Similar-scale Chemicals peers outside Louisiana: Chevron Phillips Chemical Co; Altivia Petrochemicals, LLC; Basf Corp; Polynt Composites USA Inc.. Other Westlake Chemical Corp sites in this extract: Westlake Petrochemicals Ethylene. Largest disclosed chemicals by pounds: Nitrate compounds (water dissociable; reportable only when in aqueous solution); Chlorodifluoromethane (HCFC-22); Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size); Dichlorodifluoromethane (CFC-12).
Westlake Chemicals & Vinyls LLC is a HEAVY · MIXED-pathway Form-R site in Plaquemine, LA: 1.7M lbs across 59 chemicals (24 carcinogen-classified, CARC-LEAN). No single media clears 70% of the bar (lead segment air releases at 54.6%). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Chevron Phillips Chemical Co and Altivia Petrochemicals, LLC.
Westlake Chemicals & Vinyls LLC vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
1.7M lbs Top 4% higher than 96% 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 Chemicals & Vinyls LLC in the Chemicals sector extract
Among the 3,917 Chemicals facilities in this database, Westlake Chemicals & Vinyls LLC reports the 191st-largest volume, placing it in the top 4.9% of its sector. Scale peers outside Louisiana include Chevron Phillips Chemical Co and Altivia Petrochemicals, LLC.
Sector rank uses reported TRI pounds only. Share callouts need ≥1,000 lbs so tiny totals cannot mint a false signal.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Westlake Chemicals & Vinyls LLC's total reported releases fell from 389.4 thousand lb in 2022 to 320.8 thousand lb in 2023, based on EPA TRI filings.
- Westlake Chemicals & Vinyls LLC's land releases rose from 59 lb in 2022 to 6.8 thousand lb in 2023, based on EPA TRI filings.
- Westlake Chemicals & Vinyls LLC's off-site transfers fell from 34.5 thousand lb in 2022 to 8.9 thousand lb in 2023, based on EPA TRI filings.
- Westlake Chemicals & Vinyls LLC's water releases fell from 209.4 thousand lb in 2022 to 82.9 thousand lb in 2023, based on EPA TRI filings.
Westlake Chemicals & Vinyls LLC Form-R facts
Compare this facility
See how Westlake Chemicals & Vinyls LLC stacks up against nearby facilities and the typical reporter.
About the same as the comparison
59% more 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 Chemicals & Vinyls LLC releases toxic chemicals into the environment. Total: 1.7M lbs.
Emissions Trend Summary
From 2019 to 2023, total releases decreased by 21% (405.4K lbs to 320.8K lbs).
Westlake Chemicals & Vinyls LLC: annual Form-R pounds
HEAVY site · MIXED pathway · TRI years 2019–2023
- 2019 0
- 2020 0
- 2021 0
- 2022 0
- 2023 0
What this shows Westlake Chemicals & Vinyls LLC year-over-year reported totals (decreased by 21% 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: Nitrate compounds (water dissociable; reportable only when in aqueous solution).
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 405.4K lbs | 51 |
| 2020 | 313.5K lbs | 51 |
| 2021 | 283.7K lbs | 51 |
| 2022 | 389.4K lbs | 56 |
| 2023 | 320.8K lbs | 57 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 24 of 59 chemicals are carcinogens. Sorted by total release volume.
Westlake Chemicals & Vinyls LLC in Iberville Parish
Nearest TRI Facilities to Westlake Chemicals & Vinyls LLC
Closest other reporters in Louisiana - including Shintech Plaquemine Plant, SE Tylose Louisiana LLC, Flopam Inc, ordered by distance.
Showing 8 of 416 other reporting facilities in Louisiana.
Similar Chemicals Facilities
Other Chemicals facilities with similar total release volumes (±80%), outside Louisiana - e.g. Chevron Phillips Chemical Co, Altivia Petrochemicals, LLC, Basf Corp.
Compare beyond Louisiana
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Westlake Chemicals & Vinyls LLC on cumulative reported pounds (1.7M lbs) and distinct chemical count (59). Release-pound peers include Chevron Phillips Chemical Co, Altivia Petrochemicals, LLC, Smithfield Fresh Meats Corp - Milan Mo. Chemical-count peers include Eastman Chemical Co Tennessee Operations, Lyondell Chemical Co, Formosa Plastics Corp Texas. 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.
- Chevron Phillips Chemical Co Port Arthur, TX · Chemicals 1.7M lbs reported
- Altivia Petrochemicals, LLC Haverhill, OH · Chemicals 1.7M lbs reported
- Smithfield Fresh Meats Corp - Milan Mo Milan, MO · Food 1.7M lbs reported
- Shurtape Technologies LLC - Hickory Tape Plant Hickory, NC · Paper 1.7M lbs reported
Similar chemical count
Nearest out-of-state reporters by distinct Form-R chemicals (deduped against the release-pound neighborhood).
Other Westlake Chemical Corp Facilities
Same-parent TRI sites ranked by reported releases - including Westlake Petrochemicals Ethylene.
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 Nitrate compounds (water dissociable; reportable only when in aqueous solution), Chlorodifluoromethane (HCFC-22), Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Dichlorodifluoromethane (CFC-12); nearby reporters include Shintech Plaquemine Plant. Westlake Chemicals & Vinyls LLC stamps HEAVY volume · MIXED 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 Chemicals & Vinyls LLC TRI extract (HEAVY · MIXED · CARC-LEAN · lead Nitrate compounds (water dissociable; reportable only when in aqueous solution)) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Westlake Chemicals & Vinyls LLC totals are self-reported EPCRA §313 estimates for Plaquemine, LA, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 325211 · Chemicals. 3.2% of Iberville Parish TRI pounds in this extract. Nearest ABS peer: Chevron Phillips Chemical Co (Δ 2.1K lbs). Pounds ≠ exposure.
Westlake Chemicals & Vinyls LLC stamps HEAVY · MIXED pathway (air releases leads at 54.6%). Pipeline-rendered EPA Form-R only - no editor-typed pounds. 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