Wec US Holdings Inc
4 facilities · 4 states · 5.3M lbs total releases
According to the EPA Toxics Release Inventory, Wec US Holdings Inc is the reported parent of 4 Form R facilities across 4 states, disclosing 5.3M lbs of toxic releases. 5 of 19 reported chemicals carry a carcinogen classification in the TRI extract. The heaviest-reporting state by release volume is Utah (2.9M lbs). Those TRI figures remain self-reported disclosure pounds for Wec US Holdings Inc, including carcinogen-flagged substances, not a measured public-health risk score.
Release-over-release change
What changed for Wec US Holdings Inc: EPA TRI 2023 reporting year
Same facilities, both years
+3.0%
4 facilities that filed in 2022 and 2023
Whole inventory
+3.0%
1.1 million lb → 1.1 million lb, every facility that filed
- Wec US Holdings Inc's total reported releases rose from 1.1 million lb in 2022 to 1.1 million lb in 2023, based on EPA TRI filings.
- Wec US Holdings Inc's off-site transfers fell from 2.7 thousand lb in 2022 to 450 lb in 2023, based on EPA TRI filings.
- Wec US Holdings Inc's water releases rose from 448.8 thousand lb in 2022 to 540.2 thousand lb in 2023, based on EPA TRI filings.
- Wec US Holdings Inc's air releases fell from 39.5 thousand lb in 2022 to 34.5 thousand lb in 2023, based on EPA TRI filings.
TRI parent disclosure trail
Read Wec US Holdings Inc from filing to facility
Largest Form R sites under this parent: Western Zirconium; Westinghouse Electric Co LLC; Westinghouse Electric Co; Westinghouse Electric Co LLC. Neighbor parents on the disclosure ladder: Clean Harbors Inc; The Renco Group Inc; Nucor Corp; McWane Inc. Largest disclosed chemicals by pounds: Nitrate compounds (water dissociable; reportable only when in aqueous solution); Ammonia; Nitric acid; Lead; Hydrogen fluoride. Heaviest-reporting states in this extract: Utah; South Carolina; Pennsylvania. Industry labels on the parent rollup: Primary Metals; Chemicals; Fabricated 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: Western Zirconium; Westinghouse Electric Co LLC; Westinghouse Electric Co; Westinghouse Electric Co LLC. Neighbor parents on the disclosure ladder: Clean Harbors Inc; The Renco Group Inc; Nucor Corp; McWane Inc. Largest disclosed chemicals by pounds: Nitrate compounds (water dissociable; reportable only when in aqueous solution); Ammonia; Nitric acid; Lead; Hydrogen fluoride. Heaviest-reporting states in this extract: Utah; South Carolina; Pennsylvania. Industry labels on the parent rollup: Primary Metals; Chemicals; Fabricated Metals.
Wec US Holdings Inc ranks #257 of 4,988 slug-merged TRI parents, a smaller disclosed-volume parent relative to the national Form R parent set. Wec US Holdings Inc files across 4 states, a regional parent portfolio rather than a single-state discloser. Wec US Holdings Inc's disclosed pounds are spread across 4 facilities, no single site dominates the parent total in this extract.
Parent aggregation for Wec US Holdings Inc follows facility-reported names. Compare the named neighbors (Clean Harbors Inc; The Renco Group Inc; Nucor Corp) before treating rank as a hazard score; TRI stays self-reported and unweighted by toxicity.
Where Wec US Holdings Inc sits among TRI parents
Wec US Holdings Inc sits on a disclosure ladder beside Clean Harbors Inc and The Renco Group Inc and Nucor Corp and McWane Inc. Open those parents for a different facility count, state span, and chemical mix.
Higher disclosed volume
- Clean Harbors Inc · rank #255 · 45.7M lbs
- The Renco Group Inc · rank #256 · 27.6M lbs
Lower disclosed volume
- Nucor Corp · rank #258 · 4.4M lbs
- McWane Inc · rank #259 · 4.3M lbs
Largest chemicals disclosed by Wec US Holdings Inc
Nitrate compounds (water dissociable; reportable only when in aqueous solution); Ammonia; Nitric acid; Lead; Hydrogen fluoride lead the Form R pound rollup for this parent, including filings such as Western Zirconium. Pound totals, not toxicity-weighted risk.
| Chemical | Disclosed lbs |
|---|---|
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 3.4M lbs |
| Ammonia | 1.8M lbs |
| Nitric acid | 36.8K lbs |
| Lead | 17.2K lbs |
| Hydrogen fluoride | 10.7K lbs |
Where does this company operate?
| State | Facilities | Total Releases |
|---|---|---|
| Utah | 1 | 2.9M lbs |
| South Carolina | 1 | 2.2M lbs |
| Pennsylvania | 1 | 147.4K lbs |
| New Hampshire | 1 | 0 lbs |
Facilities (4)
| Facility | Releases |
|---|---|
| Western Zirconium Ogden, UT | 2.9M lbs |
| Westinghouse Electric Co LLC Hopkins, SC | 2.2M lbs |
| Westinghouse Electric Co Blairsville, PA | 147.4K lbs |
| Westinghouse Electric Co LLC Newington, NH | 0 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 Wec US Holdings Inc on total disclosed release pounds (5.3M lbs) and reporting facility count (4). Release-volume peers include Kohler Co, New Star Metals Inc, Rpm International Inc. Facility-count peers include A Stucki Holding Corp, Advanced Heat Treat Corp, Alleima USA LLC. 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 Utah, South Carolina, Pennsylvania; facility-reported names can vary across subsidiaries.
Source: U.S. Environmental Protection Agency, TRI Basic Data Files
What to do with Wec US Holdings Inc's TRI parent record
From Wec US Holdings Inc, open Western Zirconium or compare against Clean Harbors Inc rather than reading rank alone.
- Open the largest Form R site for Wec US Holdings Inc (Western Zirconium in UT). Largest facility
- Compare against The Renco Group Inc, the next-higher disclosed-volume parent. Higher-volume parent
- Browse the full parent release ranking to see where Wec US Holdings Inc sits among all slug-merged TRI parents. All parent companies
Rank and peers (Clean Harbors Inc, The Renco Group Inc) are disclosure volume only, not toxicity-weighted risk or enforcement status.
Use and verify this record
Wec US Holdings Inc'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.