EPA TRI Facility · Chemicals
Cornerstone Chemical Co LLC
Westwego, LA · Parent: Ccc Parent LLC
- Total releases
- 65.6M lbs
- Chemicals reported
- 25
- Carcinogens
- 10
- Primary pathway
- Land Disposal
LAND Form-R mix
Cornerstone Chemical Co LLC: how the 65.6M lbs splits
65.6M lbs across all reported pathways
- Land Disposal 62.9M lbs 95.9%
- Air Releases 1.6M lbs 2.5%
- Water Discharges 996.4K lbs 1.5%
- Off-site Transfers 61.7K lbs 0.1%
Cornerstone Chemical Co LLC's 65.6M lbs Form-R total is LAND - land disposal is 95.9% of the bar. Next segment: air releases at 2.5%. Leading chemical by pounds: Acetonitrile.
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 LAND pathway CARC-LEAN
Cornerstone Chemical Co LLC is an EPA Toxics Release Inventory reporter in Westwego, LA, in the chemicals sector. It reported 12.7M lbs of releases across 20 chemicals in 2023, and 65.6M lbs in total across its 2019-2023 reporting years. That ranks 25 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. Cornerstone Chemical Co LLC is pounds #2 and chemical-count #35 at 65.6M 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: Roehm America LLC; Cf Industries East Point LLC; Kemira Chemicals Inc; Shell Kenner Terminal. Similar-scale Chemicals peers outside Louisiana: Tronox LLC; Chemours Delisle Plant; Ineos Nitriles USA LLC; Ineos Nitriles USA LLC Green Lake Plant. Largest disclosed chemicals by pounds: Acetonitrile; Ammonia; Methanol; Cyanide compounds.
Cornerstone Chemical Co LLC stamps HEAVY volume with a dominant LAND pathway (95.9% land disposal) across 25 chemicals · 10 carcinogen-classified. Cumulative Form-R extract: 65.6M lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Tronox LLC and Chemours Delisle Plant.
Cornerstone Chemical Co LLC vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
66M lbs Top 1% higher than 100% 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
Cornerstone Chemical Co LLC inside Jefferson Parish's TRI pounds
Among the 3,917 Chemicals facilities in this database, Cornerstone Chemical Co LLC reports the 5th-largest volume, placing it in the top 0.1% of its sector. This one site accounts for 83.6% of every pound reported in Jefferson Parish. Scale peers outside Louisiana include Tronox LLC and Chemours Delisle Plant.
County-dominant here means ≥25% of Jefferson Parish's reported pounds (78.4M lbs county total). Shares only print when the site reports ≥1,000 lbs.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Cornerstone Chemical Co LLC's total reported releases fell from 13.2 million lb in 2022 to 12.7 million lb in 2023, based on EPA TRI filings.
- Cornerstone Chemical Co LLC's water releases rose from 136.3 thousand lb in 2022 to 381.3 thousand lb in 2023, based on EPA TRI filings.
- Cornerstone Chemical Co LLC's off-site transfers fell from 23.2 thousand lb in 2022 to 16.2 thousand lb in 2023, based on EPA TRI filings.
- Cornerstone Chemical Co LLC's air releases fell from 335.0 thousand lb in 2022 to 241.7 thousand lb in 2023, based on EPA TRI filings.
Cornerstone Chemical Co LLC Form-R facts
Compare this facility
See how Cornerstone Chemical Co LLC stacks up against nearby facilities and the typical reporter.
6.2× more than the comparison
2.5× 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 Cornerstone Chemical Co LLC releases toxic chemicals into the environment. Total: 65.6M lbs.
Emissions Trend Summary
From 2019 to 2023, total releases decreased by 4% (13.3M lbs to 12.7M lbs).
Cornerstone Chemical Co LLC: annual Form-R pounds
HEAVY site · LAND pathway · TRI years 2019–2023
- 2019
- 2020
- 2021
- 2022
- 2023
What this shows Cornerstone Chemical Co LLC year-over-year reported totals (decreased by 4% 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: Acetonitrile.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 13.3M lbs | 21 |
| 2020 | 12.3M lbs | 21 |
| 2021 | 13.9M lbs | 23 |
| 2022 | 13.2M lbs | 22 |
| 2023 | 12.7M lbs | 20 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 10 of 25 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Acetonitrile | 27.2M lbs | - |
| Ammonia | 19.0M lbs | - |
| Methanol | 6.1M lbs | - |
| Cyanide compounds | 3.4M lbs | - |
| Acrylamide | 2.3M lbs | Carcinogen |
| Methyl methacrylate | 1.2M lbs | - |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 953.8K lbs | - |
| Propylene | 895.4K lbs | - |
| Acetamide | 827.6K lbs | Carcinogen |
| Pyridine | 736.4K lbs | Carcinogen |
| Molybdenum trioxide | 514.1K lbs | Carcinogen |
| Ethylene glycol | 455.7K lbs | - |
| Acetaldehyde | 420.6K lbs | Carcinogen |
| Acrylonitrile | 343.2K lbs | Carcinogen |
| Certain glycol ethers | 319.1K lbs | - |
| Methacrylonitrile | 314.5K lbs | - |
| Hydroquinone | 221.3K lbs | - |
| Allyl alcohol | 182.2K lbs | - |
| Sodium nitrite | 88.8K lbs | - |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 85.8K lbs | - |
| Nickel And Nickel Compounds | 45.4K lbs | Carcinogen |
| Hydrogen cyanide | 18.2K lbs | - |
| Nickel compounds | 11.3K lbs | Carcinogen |
| Cobalt compounds | 1.8K lbs | Carcinogen |
| Acrolein | 5 lbs | Carcinogen |
Cornerstone Chemical Co LLC · LAND-pathway site
Nearest TRI Facilities to Cornerstone Chemical Co LLC
Closest other reporters in Louisiana - including Roehm America LLC, Cf Industries East Point LLC, Kemira Chemicals 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. Tronox LLC, Chemours Delisle Plant, Ineos Nitriles USA LLC.
Compare beyond Louisiana
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Cornerstone Chemical Co LLC on cumulative reported pounds (65.6M lbs) and distinct chemical count (25). Release-pound peers include Tronox LLC, Cleveland-Cliffs Steel Corp (rockport Works ), Asarco LLC Ray Complex/ Hayden Smelter & Concentrator. Chemical-count peers include Aes Puerto Rico LP, Verso Luke LLC, Virginia City Hybrid Energy Center. 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.
- Tronox LLC Hamilton, MS · Chemicals 64.0M lbs reported
- Cleveland-Cliffs Steel Corp (rockport Works ) Rockport, IN · Primary Metals 67.4M lbs reported
- Asarco LLC Ray Complex/ Hayden Smelter & Concentrator Hayden, AZ · Primary Metals 67.4M lbs reported
- Tm Deer Park Services LP Deer Park, TX · Hazardous Waste 63.0M lbs reported
Similar chemical count
Nearest out-of-state reporters by distinct Form-R chemicals (deduped against the release-pound neighborhood).
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 Acetonitrile, Ammonia, Methanol, Cyanide compounds; nearby reporters include Roehm America LLC. Cornerstone Chemical Co LLC stamps HEAVY volume · LAND 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 Cornerstone Chemical Co LLC TRI extract (HEAVY · LAND · CARC-LEAN · lead Acetonitrile) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Cornerstone Chemical Co LLC totals are self-reported EPCRA §313 estimates for Westwego, LA, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 325199 · Chemicals. 83.6% of Jefferson Parish TRI pounds in this extract. Nearest ABS peer: Tronox LLC (Δ 1.5M lbs). Pounds ≠ exposure.
Cornerstone Chemical Co LLC stamps HEAVY volume · LAND pathway · CARC-LEAN · lead Acetonitrile. 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