Grede Holdings LLC
10 facilities · 7 states · 2.5M lbs total releases
According to the EPA Toxics Release Inventory, Grede Holdings LLC is the reported parent of 10 Form R facilities across 7 states, disclosing 2.5M lbs of toxic releases. 6 of 55 reported chemicals carry a carcinogen classification in the TRI extract. The heaviest-reporting state by release volume is Wisconsin (1.0M lbs). Those TRI figures remain self-reported disclosure pounds for Grede Holdings LLC, including carcinogen-flagged substances, not a measured public-health risk score.
Release-over-release change
What changed for Grede Holdings LLC: EPA TRI 2023 reporting year
Same facilities, both years
-12.5%
9 facilities that filed in 2022 and 2023
Whole inventory
-12.5%
595.0 thousand lb → 520.8 thousand lb, every facility that filed
- Grede Holdings LLC's total reported releases fell from 595.0 thousand lb in 2022 to 520.8 thousand lb in 2023, based on EPA TRI filings.
- Grede Holdings LLC's water releases rose from 17 lb in 2022 to 44 lb in 2023, based on EPA TRI filings.
- Grede Holdings LLC's air releases fell from 12.9 thousand lb in 2022 to 3.6 thousand lb in 2023, based on EPA TRI filings.
- Grede Holdings LLC's off-site transfers fell from 582.1 thousand lb in 2022 to 517.1 thousand lb in 2023, based on EPA TRI filings.
TRI parent disclosure trail
Read Grede Holdings LLC from filing to facility
Largest Form R sites under this parent: Grede Foundries; Grede LLC - Iron Mountain; Advanced Cast Products Inc; Grede LLC Saint Cloud. Neighbor parents on the disclosure ladder: Foremost Farms USA Cooperative; Wec Energy Group. Largest disclosed chemicals by pounds: Manganese; Sodium nitrite; Zinc compounds; Copper; Lead. Heaviest-reporting states in this extract: Wisconsin; Michigan; Pennsylvania. Industry labels on the parent rollup: Primary Metals. 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: Grede Foundries; Grede LLC - Iron Mountain; Advanced Cast Products Inc; Grede LLC Saint Cloud. Neighbor parents on the disclosure ladder: Foremost Farms USA Cooperative; Wec Energy Group. Largest disclosed chemicals by pounds: Manganese; Sodium nitrite; Zinc compounds; Copper; Lead. Heaviest-reporting states in this extract: Wisconsin; Michigan; Pennsylvania. Industry labels on the parent rollup: Primary Metals.
Grede Holdings LLC ranks #407 of 4,988 slug-merged TRI parents, a smaller disclosed-volume parent relative to the national Form R parent set. Grede Holdings LLC spans 7 states in this extract, placing it among the broader national TRI parent footprints. Grede Holdings LLC's disclosed pounds are spread across 10 facilities, no single site dominates the parent total in this extract.
Parent aggregation for Grede Holdings LLC follows facility-reported names. Compare the named neighbors (Foremost Farms USA Cooperative; Wec Energy Group) before treating rank as a hazard score; TRI stays self-reported and unweighted by toxicity.
Where Grede Holdings LLC sits among TRI parents
Grede Holdings LLC sits on a disclosure ladder beside Foremost Farms USA Cooperative and Wec Energy Group. Open those parents for a different facility count, state span, and chemical mix.
Higher disclosed volume
- Foremost Farms USA Cooperative · rank #405 · 11.6M lbs
- Wec Energy Group · rank #406 · 7.5M lbs
Largest chemicals disclosed by Grede Holdings LLC
Manganese; Sodium nitrite; Zinc compounds; Copper; Lead lead the Form R pound rollup for this parent, including filings such as Grede Foundries. Pound totals, not toxicity-weighted risk.
| Chemical | Disclosed lbs |
|---|---|
| Manganese | 1.3M lbs |
| Sodium nitrite | 477.3K lbs |
| Zinc compounds | 455.7K lbs |
| Copper | 123.4K lbs |
| Lead | 37.6K lbs |
Where does this company operate?
| State | Facilities | Total Releases |
|---|---|---|
| Wisconsin | 3 | 1.0M lbs |
| Michigan | 1 | 764.6K lbs |
| Pennsylvania | 1 | 492.8K lbs |
| Minnesota | 1 | 109.9K lbs |
| Alabama | 2 | 43.4K lbs |
| Indiana | 1 | 21.0K lbs |
| North Carolina | 1 | 3.3K lbs |
Facilities (10)
| Facility | Releases |
|---|---|
| Grede Foundries Reedsburg, WI | 984.1K lbs |
| Grede LLC - Iron Mountain Kingsford, MI | 764.6K lbs |
| Advanced Cast Products Inc Meadville, PA | 492.8K lbs |
| Grede LLC Saint Cloud Saint Cloud, MN | 109.9K lbs |
| Grede II - Brewton Brewton, AL | 37.6K lbs |
| Grede-Browntown Browntown, WI | 36.0K lbs |
| Grede LLC New Castle, IN | 21.0K lbs |
| Grede Holdings LLC Wauwatosa, WI | 16.6K lbs |
| Grede II - Columbiana Columbiana, AL | 5.8K lbs |
| Grede II LLC Biscoe, NC | 3.3K 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 Grede Holdings LLC on total disclosed release pounds (2.5M lbs) and reporting facility count (10). Release-volume peers include Armstrong World Industries Inc, East Penn Manufacturing Co Inc, Sonoco Products Co. Facility-count peers include Aalberts US Holding Corp, Altec Industries Inc, American Axle & Manufacturing Inc. 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 Wisconsin, Michigan, Pennsylvania; facility-reported names can vary across subsidiaries.
Source: U.S. Environmental Protection Agency, TRI Basic Data Files
What to do with Grede Holdings LLC's TRI parent record
From Grede Holdings LLC, open Grede Foundries or compare against Foremost Farms USA Cooperative rather than reading rank alone.
- Open the largest Form R site for Grede Holdings LLC (Grede Foundries in WI). Largest facility
- Compare against Wec Energy Group, the next-higher disclosed-volume parent. Higher-volume parent
- Browse the full parent release ranking to see where Grede Holdings LLC sits among all slug-merged TRI parents. All parent companies
Rank and peers (Foremost Farms USA Cooperative, Wec Energy Group) are disclosure volume only, not toxicity-weighted risk or enforcement status.
Use and verify this record
Grede Holdings LLC'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.