EPA TRI Facility · Chemicals
Entegris Inc.
Chester, PA · Parent: Entegris Inc
- Total releases
- 247.2K lbs
- Chemicals reported
- 6
- Carcinogens
- 2
- Primary pathway
- Off-site Transfers
OFFSITE Form-R mix
Entegris Inc.: how the 250.4K lbs splits
250.4K lbs across all reported pathways
- Off-site Transfers 245.2K lbs 97.9%
- Air Releases 5.3K lbs 2.1%
- Land Disposal 0 lbs <0.1%
Entegris Inc.'s 250.4K lbs Form-R total is OFFSITE - off-site transfers is 97.9% of the bar. Next segment: air releases at 2.1%. Leading chemical by pounds: Toluene.
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.
MID volume OFFSITE pathway TRACE-CARC
Entegris Inc. is an EPA Toxics Release Inventory reporter in Chester, PA, in the chemicals sector. It reported 3.2K lbs of releases across 5 chemicals in 2024, and 247.2K lbs in total across its 2019-2024 reporting years. That ranks 2,885 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Pennsylvania's 1,010 reporting TRI sites, pounds #1 is not chemical-count #1. Entegris Inc. is pounds #116 and chemical-count #183 at 247.2K lbs. Max Environmental -- Yukon Facility leads reported pounds (34.8M lbs) at 18 chemicals (chemical-count #24). Keystone Cement Co leads chemical count at 53 chemicals (155.4K lbs, pounds #149). Reported volume rose against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Evonik Corp; Crown Foundry Co West Philadelphia Bronze; Braskem America Inc; Kimberly-Clark Pennsylvania L Lc. Similar-scale Chemicals peers outside Pennsylvania: Si Group Inc; Ineos Oligomers USA LLC; Croda Inc; Hallstar Co Ester Solutions Facility. Other Entegris Inc sites in this extract: Entegris Inc; Poco Graphite; Entegris Inc; Entegris - San Luis Obispo. Largest disclosed chemicals by pounds: Toluene; Methanol; Xylene (mixed isomers); n-Hexane.
Entegris Inc. stamps MID volume with a dominant OFFSITE pathway (97.9% off-site transfers) across 6 chemicals · 2 carcinogen-classified. Cumulative Form-R extract: 247.2K lbs (2019–2024). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Si Group Inc and Ineos Oligomers USA LLC.
Entegris Inc. vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
247K lbs Top 11% higher than 89% 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
Entegris Inc.: Toluene-led volume
Among the 3,917 Chemicals facilities in this database, Entegris Inc. reports the 565th-largest volume, placing it in the top 14.4% of its sector. Its reported volume is concentrated rather than spread: Toluene alone is 73.4% of the total. Scale peers outside Pennsylvania include Si Group Inc and Ineos Oligomers USA LLC.
Concentrated means ≥60% of Entegris Inc.'s pounds in one chemical - here Toluene at 73.4%. Not a toxicity score.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Entegris Inc.'s total reported releases rose from 557 lb in 2022 to 246.2 thousand lb in 2023, based on EPA TRI filings.
- Entegris Inc.'s off-site transfers rose from 0 lb in 2022 to 245.2 thousand lb in 2023, based on EPA TRI filings.
- Entegris Inc.'s air releases rose from 557 lb in 2022 to 996 lb in 2023, based on EPA TRI filings.
Entegris Inc. Form-R facts
Compare this facility
See how Entegris Inc. stacks up against nearby facilities and the typical reporter.
11.0× more than the comparison
3.0× 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 Entegris Inc. releases toxic chemicals into the environment. Total: 250.4K lbs.
Emissions Trend Summary
From 2019 to 2024, total releases increased by 2025% (150 lbs to 3.2K lbs).
Entegris Inc.: annual Form-R pounds
MID site · OFFSITE pathway · TRI years 2019–2024
- 2019 0
- 2020 0
- 2021 0
- 2022 0
- 2023 0
- 2024 0
What this shows Entegris Inc. year-over-year reported totals (increased by 2025% from 2019 to 2024). 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: Toluene.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 150 lbs | 5 |
| 2020 | 118 lbs | 4 |
| 2021 | 246 lbs | 5 |
| 2022 | 557 lbs | 5 |
| 2023 | 246.2K lbs | 5 |
| 2024 | 3.2K lbs | 5 |
Chemical Releases
Aggregated across all reporting years (2019–2024). 2 of 6 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Toluene | 183.8K lbs | - |
| Methanol | 28.1K lbs | - |
| Xylene (mixed isomers) | 23.8K lbs | - |
| n-Hexane | 14.5K lbs | - |
| Ethylbenzene | 162 lbs | Carcinogen |
| N,N-Dimethylformamide | 6 lbs | Carcinogen |
Entegris Inc. · OFFSITE-pathway site
Nearest TRI Facilities to Entegris Inc.
Closest other reporters in Pennsylvania - including Evonik Corp, Crown Foundry Co West Philadelphia Bronze, Braskem America Inc, ordered by distance.
Showing 8 of 1,009 other reporting facilities in Pennsylvania.
Similar Chemicals Facilities
Other Chemicals facilities with similar total release volumes (±80%), outside Pennsylvania - e.g. Si Group Inc, Ineos Oligomers USA LLC, Croda Inc.
Compare beyond Pennsylvania
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Entegris Inc. on cumulative reported pounds (247.2K lbs) and distinct chemical count (6). Release-pound peers include Si Group Inc, Tyson Poultry Inc. River Valley Ingredients - Texarkana, Design Tanks LLC. Chemical-count peers include Eaton Intelligent Power Ltd, Leoni Wire Inc, Turf Care Supply-Hatfield Plant. 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.
- Si Group Inc Rotterdam Junction, NY · Chemicals 247.2K lbs reported
- Tyson Poultry Inc. River Valley Ingredients - Texarkana Texarkana, AR · Food 247.1K lbs reported
- Design Tanks LLC Sioux Falls, SD · Plastics and Rubber 247.4K lbs reported
- Certainteed Shakopee Shakopee, MN · Petroleum 247.5K lbs reported
Similar chemical count
Nearest out-of-state reporters by distinct Form-R chemicals (deduped against the release-pound neighborhood).
Other Entegris Inc Facilities
Same-parent TRI sites ranked by reported releases - including Entegris Inc, Poco Graphite, Entegris Inc.
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 Toluene, Methanol, Xylene (mixed isomers), n-Hexane; nearby reporters include Evonik Corp. Entegris Inc. stamps MID volume · OFFSITE pathway · TRACE-CARC 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 Entegris Inc. TRI extract (MID · OFFSITE · TRACE-CARC · lead Toluene) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Entegris Inc. totals are self-reported EPCRA §313 estimates for Chester, PA, latest year 2023. Form-R rows span 2019–2024 (6 years). NAICS 325199 · Chemicals. 8.8% of Delaware TRI pounds in this extract. Nearest ABS peer: Si Group Inc (Δ 52 lbs). Pounds ≠ exposure.
Entegris Inc. stamps MID volume · OFFSITE pathway · TRACE-CARC · lead Toluene. 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