Cornerstone Chemical Company
Waggaman, LA · JEFFERSON PARISH · NAICS 325199
Data updated May 2026
Cornerstone Chemical Company sits in the upper third of EPA GHGRP reporters by latest CO₂e (#1,266 of 8,713 nationally, #72 of 531 in LA).
- National rank #1,266 of 8,713 GHGRP facilities
- #72 of 531 in LA
- #176 of 534 in Chemicals
- 100% of CSTN HOLDINGS parent CO₂e
- 2023 mix: 0.1% non-CO₂ (N₂O-led)
- +4.4% since 2011
Cornerstone Chemical Company vs all U.S. GHGRP facilities
Where this site's latest reported Scope 1 CO₂e sits among every EPA GHGRP reporting facility
332,073 1266th of 8713 higher than 7,447 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 100% of CSTN HOLDINGS reported parent CO₂e (332K MT of 332K MT ). Inside the EPA Chemicals sector it ranks #176 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 332K MT CO₂e reported for 2023, non-CO₂ gases are 0.1% , led by N₂O at 0% . Component shares use this facility's GHGRP CO₂ / CH₄ / N₂O rows for that year (already CO₂e-weighted).
- CO₂
- 99.9%
- 332K MT
- CH₄
- 0%
- 117 MT
- N₂O
- 0%
- 139 MT
High-emitter reporting timeline
| Year | Total CO2e (MT) |
|---|---|
| 2023 | 332,073 |
| 2022 | 360,951 |
| 2021 | 362,117 |
| 2020 | 377,762 |
| 2019 | 392,495 |
| 2018 | 373,901 |
| 2017 | 357,762 |
| 2016 | 332,130 |
| 2015 | 332,872 |
| 2014 | 334,543 |
| 2013 | 323,537 |
| 2012 | 318,869 |
| 2011 | 318,130 |
Facility insight: Cornerstone Chemical Company
Cornerstone Chemical Company (GHGRP ID 1004570) is a high-volume reporter at 332K MT CO₂e in 2023 from Waggaman, LA (#1,266 of 8,713 nationally) under Chemicals (NAICS 325199).
Over 13 years (2011–2023), emissions stayed within a narrow band around 332K MT CO₂e (peak 392K MT). This facility has filed every year from 2011 to 2023, a complete 13-year record.
Peak year was 2019 at 392K MT CO2e; latest 2023 sits 15.4% below that peak (332K MT). The largest year-to-year move was 2022→2023 (-8.0%, 29K MT).
Frequently Asked Questions
Where does Cornerstone Chemical Company rank among U.S. GHGRP facilities? ▼
According to the EPA Greenhouse Gas Reporting Program, Cornerstone Chemical Company ranks #1,266 of 8,713 reporting facilities by latest reported CO₂e, and #72 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 Cornerstone Chemical Company? ▼
Cornerstone Chemical Company's 332K MT CO₂e is higher than 7,447 of the 8,713 GHGRP facilities with reported emissions (85%), an exact count from the full corpus, not an estimate.
How much CO2 does Cornerstone Chemical Company emit? ▼
Cornerstone Chemical Company reported 332K MT CO2e in 2023.
What share of CSTN HOLDINGS does Cornerstone Chemical Company represent? ▼
Cornerstone Chemical Company accounts for 100% of CSTN HOLDINGS's reported GHGRP CO₂e (332K MT of 332K MT).
What is Cornerstone Chemical Company's 2023 CO₂ / CH₄ / N₂O mix? ▼
In 2023, non-CO₂ gases were 0.1% of reported CO₂e at Cornerstone Chemical Company, with N₂O the larger non-CO₂ share at 0% (CO₂ 99.9%). Shares use the facility's GHGRP gas components for that year.
Where does Cornerstone Chemical Company rank inside Chemicals? ▼
Among EPA GHGRP facilities tagged Chemicals, Cornerstone Chemical Company ranks #176 of 534 by latest reported CO₂e.
Is Cornerstone Chemical Company reducing emissions? ▼
Over 13 reporting years (2011–2023), Cornerstone Chemical Company's emissions have increased by 4.4%. Emissions have remained relatively stable.
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 (332K MT here).
Similar Chemicals CO₂e
Nearest same-sector facility totals outside LA.