EPA TRI Facility · Chemicals
Westlake Compounds LLC
Prairie, MS · Parent: Westlake Corp
- Total releases
- 0 lbs
- Chemicals reported
- 5
- Carcinogens
- 2
- Primary pathway
- Air Releases
AIR Form-R mix
Westlake Compounds LLC: how the 0 lbs splits
0 lbs across all reported pathways
- Air Releases 0 lbs 100.0%
Westlake Compounds LLC's 0 lbs Form-R total is AIR - air releases is 100.0% of the bar. Off-site transfers stay separate from air, water, and land releases. Leading chemical by pounds: Lead.
TRACE volume AIR pathway CARC-HEAVY
Westlake Compounds LLC is an EPA Toxics Release Inventory reporter in Prairie, MS, in the chemicals sector. It reported 0 lbs of releases across 4 chemicals in 2023, and 0 lbs in total across its 2019-2023 reporting years. That ranks 20,337 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Mississippi's 328 reporting TRI sites, pounds #1 is not chemical-count #1. Westlake Compounds LLC is pounds #312 and chemical-count #84 at 0 lbs. Tronox LLC leads reported pounds (64.0M lbs) at 17 chemicals (chemical-count #12). Chevron Products Co Pascagoula Refinery leads chemical count at 46 chemicals (7.4M lbs, pounds #9). Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Westlake Chemicals & Vinyls LLC; Sterling Specialty Chemicals US LLC; Yokohama Tire Manufacturing Mississippi LLC; Tronox LLC. Similar-scale Chemicals peers outside Mississippi: Kemira Water Solutions Inc.; Air Liquide Advanced Materials Inc; Halliburton Casper Field Camp; Intervet Inc.. 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: Lead; Antimony compounds; Barium compounds (except for barium sulfate (CAS No. 7727-43-7)); Zinc compounds.
Westlake Compounds LLC stamps TRACE volume with a dominant AIR pathway (100.0% air releases) across 5 chemicals · 2 carcinogen-classified. Cumulative Form-R extract: 0 lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Kemira Water Solutions Inc. and Air Liquide Advanced Materials Inc.
Westlake Compounds LLC vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
0 lbs 22nd percentile higher than 22% 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 Compounds LLC in the Chemicals sector extract
Among the 3,917 Chemicals facilities in this database, Westlake Compounds LLC reports the 3,389th-largest volume (0 lbs). Scale peers outside Mississippi include Kemira Water Solutions Inc. and Air Liquide Advanced Materials Inc.
Sector rank uses reported TRI pounds only. Share callouts need ≥1,000 lbs so tiny totals cannot mint a false signal.
Westlake Compounds LLC Form-R facts
Compare this facility
See how Westlake Compounds LLC stacks up against nearby facilities and the typical reporter.
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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 Compounds LLC releases toxic chemicals into the environment. Total: 0 lbs.
Emissions Trend Summary
Westlake Compounds LLC: annual Form-R pounds
TRACE site · AIR pathway · TRI years 2019–2023
- 2019 0
- 2020 0
- 2021 0
- 2022 0
- 2023 0
What this shows Westlake Compounds LLC year-over-year reported totals. 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: Lead.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 0 lbs | 4 |
| 2020 | 0 lbs | 4 |
| 2021 | 0 lbs | 5 |
| 2022 | 0 lbs | 5 |
| 2023 | 0 lbs | 4 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 2 of 5 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Lead | 0 lbs | Carcinogen |
| Antimony compounds | 0 lbs | - |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 0 lbs | - |
| Zinc compounds | 0 lbs | - |
| Di(2-ethylhexyl) phthalate | 0 lbs | Carcinogen |
Westlake Compounds LLC · AIR-pathway site
Nearest TRI Facilities to Westlake Compounds LLC
Closest other reporters in Mississippi - including Westlake Chemicals & Vinyls LLC, Sterling Specialty Chemicals US LLC, Yokohama Tire Manufacturing Mississippi LLC, ordered by distance.
Showing 8 of 327 other reporting facilities in Mississippi.
Similar Chemicals Facilities
Other Chemicals facilities with similar total release volumes (±80%), outside Mississippi - e.g. Kemira Water Solutions Inc., Air Liquide Advanced Materials Inc, Halliburton Casper Field Camp.
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 Lead, Antimony compounds, Barium compounds (except for barium sulfate (CAS No. 7727-43-7)), Zinc compounds; nearby reporters include Westlake Chemicals & Vinyls LLC. Westlake Compounds LLC stamps TRACE volume · AIR pathway · CARC-HEAVY 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 Compounds LLC TRI extract (TRACE · AIR · CARC-HEAVY · lead Lead) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Westlake Compounds LLC totals are self-reported EPCRA §313 estimates for Prairie, MS, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 325991 · Chemicals. 0.0% of Monroe TRI pounds in this extract. Nearest ABS peer: Duramax Marine Industries (Δ 0 lbs). Pounds ≠ exposure.
Westlake Compounds LLC stamps TRACE volume · AIR pathway · CARC-HEAVY · lead Lead. 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