W R Grace & Co
12 facilities · 9 states · 8.6M lbs total releases
According to the EPA Toxics Release Inventory, W R Grace & Co is the reported parent of 12 Form R facilities across 9 states, disclosing 8.6M lbs of toxic releases. 15 of 89 reported chemicals carry a carcinogen classification in the TRI extract. The heaviest-reporting state by release volume is Louisiana (4.8M lbs). Those TRI figures remain self-reported disclosure pounds for W R Grace & Co, including carcinogen-flagged substances, not a measured public-health risk score.
Release-over-release change
What changed for W R Grace & Co: EPA TRI 2023 reporting year
Same facilities, both years
+61.7%
11 facilities that filed in 2022 and 2023
Whole inventory
+61.7%
1.5 million lb → 2.5 million lb, every facility that filed
- W R Grace & Co's total reported releases rose from 1.5 million lb in 2022 to 2.5 million lb in 2023, based on EPA TRI filings.
- W R Grace & Co's off-site transfers rose from 660.0 thousand lb in 2022 to 1.5 million lb in 2023, based on EPA TRI filings.
- W R Grace & Co's land releases rose from 4.5 thousand lb in 2022 to 5.5 thousand lb in 2023, based on EPA TRI filings.
- W R Grace & Co's water releases fell from 87.8 thousand lb in 2022 to 80.2 thousand lb in 2023, based on EPA TRI filings.
TRI parent disclosure trail
Read W R Grace & Co from filing to facility
Largest Form R sites under this parent: W R Grace & Co-Conn Grace; Grace Davison-Curtis Bay Works; W.r. Grace & Co.; W R Grace & Co. Neighbor parents on the disclosure ladder: Bayer US Holding LP; Ccc Parent LLC. Largest disclosed chemicals by pounds: Ammonia; Molybdenum trioxide; Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size); Nitrate compounds (water dissociable; reportable only when in aqueous solution); Methanol. Heaviest-reporting states in this extract: Louisiana; Maryland; Oregon. Industry labels on the parent rollup: Chemicals; Chemical Wholesalers. Start from those named sites and neighbors rather than a generic parent blurb; pounds stay disclosure, not risk.
Source: U.S. Environmental Protection Agency, TRI Basic Data Files Toxics Release Inventory (TRI) · August 2026
Largest Form R sites under this parent: W R Grace & Co-Conn Grace; Grace Davison-Curtis Bay Works; W.r. Grace & Co.; W R Grace & Co. Neighbor parents on the disclosure ladder: Bayer US Holding LP; Ccc Parent LLC. Largest disclosed chemicals by pounds: Ammonia; Molybdenum trioxide; Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size); Nitrate compounds (water dissociable; reportable only when in aqueous solution); Methanol. Heaviest-reporting states in this extract: Louisiana; Maryland; Oregon. Industry labels on the parent rollup: Chemicals; Chemical Wholesalers.
W R Grace & Co ranks #176 of 4,988 slug-merged TRI parents by disclosed release pounds, mid-to-upper among parents, not a top-25 volume name. W R Grace & Co spans 9 states in this extract, placing it among the broader national TRI parent footprints. W R Grace & Co's disclosed pounds are spread across 12 facilities, no single site dominates the parent total in this extract.
Parent aggregation for W R Grace & Co follows facility-reported names. Compare the named neighbors (Bayer US Holding LP; Ccc Parent LLC) before treating rank as a hazard score; TRI stays self-reported and unweighted by toxicity.
Where W R Grace & Co sits among TRI parents
W R Grace & Co sits on a disclosure ladder beside Bayer US Holding LP and Ccc Parent LLC. Open those parents for a different facility count, state span, and chemical mix.
Higher disclosed volume
- Bayer US Holding LP · rank #174 · 81.9M lbs
- Ccc Parent LLC · rank #175 · 65.6M lbs
Largest chemicals disclosed by W R Grace & Co
Ammonia; Molybdenum trioxide; Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size); Nitrate compounds (water dissociable; reportable only when in aqueous solution); Methanol lead the Form R pound rollup for this parent, including filings such as W R Grace & Co-Conn Grace. Pound totals, not toxicity-weighted risk.
| Chemical | Disclosed lbs |
|---|---|
| Ammonia | 3.4M lbs |
| Molybdenum trioxide | 1.5M lbs |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 903.3K lbs |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 783.9K lbs |
| Methanol | 492.3K lbs |
Where does this company operate?
| State | Facilities | Total Releases |
|---|---|---|
| Louisiana | 3 | 4.8M lbs |
| Maryland | 1 | 1.5M lbs |
| Oregon | 1 | 1.0M lbs |
| Illinois | 1 | 873.2K lbs |
| Texas | 2 | 296.5K lbs |
| Pennsylvania | 1 | 92.5K lbs |
| Michigan | 1 | 21.0K lbs |
| California | 1 | 17.5K lbs |
| Indiana | 1 | 8 lbs |
Facilities (12)
| Facility | Releases |
|---|---|
| W R Grace & Co-Conn Grace Sulphur, LA | 4.7M lbs |
| Grace Davison-Curtis Bay Works Baltimore, MD | 1.5M lbs |
| W.r. Grace & Co. Albany, OR | 1.0M lbs |
| W R Grace & Co Chicago, IL | 873.2K lbs |
| Grace -Pasadena Catalyst Site Pasadena, TX | 296.3K lbs |
| W R Grace & Co Tyrone, PA | 92.5K lbs |
| W. R. Grace & Co - Conn Baton Rouge, LA | 60.7K lbs |
| W. R. Grace & Co.-Conn. South Haven, MI | 21.0K lbs |
| W. R. Grace Hesperia, CA | 17.5K lbs |
| Shac Catalyst Plant Norco, LA | 15.6K lbs |
| W. R. Grace & Co Conn Houston, TX | 145 lbs |
| Grace Davison East Chicago East Chicago, IN | 8 lbs |
Frequently Asked Questions
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Compare beyond the release ladder
Nationwide peers by disclosed pounds & facility count
Cross-portfolio TRI parents nearest W R Grace & Co on total disclosed release pounds (8.6M lbs) and reporting facility count (12). Release-volume peers include The Goodyear Tire & Rubber Co, Chs Inc, East Kentucky Power Cooperative Inc. Facility-count peers include Avery Dennison Corp, Bodycote Thermal Processing Inc, Harsco Corp. Neighborhoods are forced disjoint so each axis surfaces a different set of parents.
Similar disclosed release pounds
Nearest parents (≥3 facilities, ≥10k lbs) by absolute TRI disclosed pounds, not rank-adjacent ladder neighbors.
Similar facility count
Nearest parents by reporting-site count (deduped against the release-pound neighborhood).
About This Data
EPA TRI parent totals cover all media. This extract's heaviest states for the parent are Louisiana, Maryland, Oregon; facility-reported names can vary across subsidiaries.
Source: U.S. Environmental Protection Agency, TRI Basic Data Files
What to do with W R Grace & Co's TRI parent record
From W R Grace & Co, open W R Grace & Co-Conn Grace or compare against Bayer US Holding LP rather than reading rank alone.
- Open the largest Form R site for W R Grace & Co (W R Grace & Co-Conn Grace in LA). Largest facility
- Compare against Ccc Parent LLC, the next-higher disclosed-volume parent. Higher-volume parent
- Browse the full parent release ranking to see where W R Grace & Co sits among all slug-merged TRI parents. All parent companies
Rank and peers (Bayer US Holding LP, Ccc Parent LLC) are disclosure volume only, not toxicity-weighted risk or enforcement status.
Use and verify this record
W R Grace & Co's record groups disclosed TRI parent-company filings so readers can compare reporting context without treating the total as a measure of risk.
Company release figures are computed directly from EPA Toxic Release Inventory data; source names and the record-linking method are documented in the methodology.
Primary sources
- EPA Toxics Release Inventory Basic Data Files - annual facility-level chemical-release disclosures
PlainEnviro renders public EPA records directly from its data pipeline; no figure on this page is typed in by an editor. See the editorial standards and corrections policy for how source changes and reported errors are handled.