Westlake Chemicals and Vinyls, LLC
PLAQUEMINE, LA · IBERVILLE PARISH · NAICS 325180
Data updated May 2026
Westlake Chemicals and Vinyls, LLC sits in the upper third of EPA GHGRP reporters by latest CO₂e (#547 of 8,713 nationally, #32 of 531 in LA).
- National rank #547 of 8,713 GHGRP facilities
- #32 of 531 in LA
- #64 of 534 in Chemicals
- 26% of WESTLAKE CHEMICAL parent CO₂e
- 2023 mix: 0.1% non-CO₂ (N₂O-led)
- -10.9% since 2011
Westlake Chemicals and Vinyls, LLC vs all U.S. GHGRP facilities
Where this site's latest reported Scope 1 CO₂e sits among every EPA GHGRP reporting facility
1,167,601 547th of 8713 higher than 8,166 of 8,713 facilities
GHGRP facilities, banded by latest reported CO₂e (MT)
Each bar is a band; taller bars hold more facilities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source EPA Greenhouse Gas Reporting Program · 2023
Facility footprint context
This site accounts for 26% of WESTLAKE CHEMICAL reported parent CO₂e (1.2M MT of 4.5M MT ; #1 of 9 GHGRP facilities under that parent ). Inside the EPA Chemicals sector it ranks #64 of 534 facilities by latest CO₂e. Shares use GHGRP facility rollups only, not Scope 2/3 or non-reporting sites.
2023 gas mix desk
Of 1.2M MT CO₂e reported for 2023, non-CO₂ gases are 0.1% , led by N₂O at 0.1% . Component shares use this facility's GHGRP CO₂ / CH₄ / N₂O rows for that year (already CO₂e-weighted).
- CO₂
- 99.9%
- 1.2M MT
- CH₄
- 0%
- 522 MT
- N₂O
- 0.1%
- 622 MT
Emissions decline across reporting years
| Year | Total CO2e (MT) |
|---|---|
| 2023 | 1,167,601 |
| 2022 | 1,067,704 |
| 2021 | 1,164,519 |
| 2020 | 1,234,090 |
| 2019 | 1,149,415 |
| 2018 | 1,215,427 |
| 2017 | 1,168,226 |
| 2016 | 1,137,967 |
| 2015 | 1,271,561 |
| 2014 | 1,291,403 |
| 2013 | 1,349,492 |
| 2012 | 1,377,625 |
| 2011 | 1,310,340 |
Facility insight: Westlake Chemicals and Vinyls, LLC
Westlake Chemicals and Vinyls, LLC (GHGRP ID 1002350) is a high-volume reporter at 1.2M MT CO₂e in 2023 from PLAQUEMINE, LA (#547 of 8,713 nationally) under Chemicals (NAICS 325180).
Across 2011–2023, annual CO₂e fell 10.9%; peak load was 1.4M MT in 2012. This facility has filed every year from 2011 to 2023, a complete 13-year record.
Peak year was 2012 at 1.4M MT CO2e; latest 2023 sits 15.2% below that peak (1.2M MT). The largest year-to-year move was 2015→2016 (-10.5%, 134K MT).
Frequently Asked Questions
Where does Westlake Chemicals and Vinyls, LLC rank among U.S. GHGRP facilities? ▼
According to the EPA Greenhouse Gas Reporting Program, Westlake Chemicals and Vinyls, LLC ranks #547 of 8,713 reporting facilities by latest reported CO₂e, and #32 of 531 facilities in LA (same sort as the state facility table). See /methodology#corpus-placement.
What share of GHGRP facilities report less CO₂e than Westlake Chemicals and Vinyls, LLC? ▼
Westlake Chemicals and Vinyls, LLC's 1.2M MT CO₂e is higher than 8,166 of the 8,713 GHGRP facilities with reported emissions (94%), an exact count from the full corpus, not an estimate.
How much CO2 does Westlake Chemicals and Vinyls, LLC emit? ▼
Westlake Chemicals and Vinyls, LLC reported 1.2M MT CO2e in 2023.
What share of WESTLAKE CHEMICAL does Westlake Chemicals and Vinyls, LLC represent? ▼
Westlake Chemicals and Vinyls, LLC accounts for 26% of WESTLAKE CHEMICAL's reported GHGRP CO₂e (1.2M MT of 4.5M MT), ranking #1 of 9 facilities under that parent.
What is Westlake Chemicals and Vinyls, LLC's 2023 CO₂ / CH₄ / N₂O mix? ▼
In 2023, non-CO₂ gases were 0.1% of reported CO₂e at Westlake Chemicals and Vinyls, LLC, with N₂O the larger non-CO₂ share at 0.1% (CO₂ 99.9%). Shares use the facility's GHGRP gas components for that year.
Where does Westlake Chemicals and Vinyls, LLC rank inside Chemicals? ▼
Among EPA GHGRP facilities tagged Chemicals, Westlake Chemicals and Vinyls, LLC ranks #64 of 534 by latest reported CO₂e.
Is Westlake Chemicals and Vinyls, LLC reducing emissions? ▼
Over 13 reporting years (2011–2023), Westlake Chemicals and Vinyls, LLC's emissions have decreased by 10.9%. This suggests meaningful progress in emissions reduction.
Nationwide facilities with similar CO₂e or sector
Peer sets outside LA for a top-third GHGRP emitter: CO₂e totals first, then Chemicals neighbors.
Similar reported CO₂e
Nearest latest-year facility totals outside LA (1.2M MT here).
Similar Chemicals CO₂e
Nearest same-sector facility totals outside LA.