Leonardo US Holding Inc
4 facilities · 4 states · 104.8K lbs total releases
According to the EPA Toxics Release Inventory, Leonardo US Holding Inc is the reported parent of 4 Form R facilities across 4 states, disclosing 104.8K lbs of toxic releases. 3 of 10 reported chemicals carry a carcinogen classification in the TRI extract. The heaviest-reporting state by release volume is Texas (104.6K lbs). Those TRI figures remain self-reported disclosure pounds for Leonardo US Holding Inc, including carcinogen-flagged substances, not a measured public-health risk score.
Release-over-release change
What changed for Leonardo US Holding Inc: EPA TRI 2023 reporting year
Same facilities, both years
-59.7%
4 facilities that filed in 2022 and 2023
Whole inventory
-59.7%
23.9 thousand lb → 9.6 thousand lb, every facility that filed
- Leonardo US Holding Inc's total reported releases fell from 23.9 thousand lb in 2022 to 9.6 thousand lb in 2023, based on EPA TRI filings.
- Leonardo US Holding Inc's air releases fell from 23.9 thousand lb in 2022 to 9.6 thousand lb in 2023, based on EPA TRI filings.
- Leonardo US Holding Inc's off-site transfers rose from 27 lb in 2022 to 41 lb in 2023, based on EPA TRI filings.
- Leonardo US Holding Inc's chemicals reported fell from 8 in 2022 to 7 in 2023, based on EPA TRI filings.
TRI parent disclosure trail
Read Leonardo US Holding Inc from filing to facility
Largest Form R sites under this parent: Drs Nis LLC; Engineered Coil Co. DBA Drs Marlo Coil; Leonardo Drs - Laurel Technologies Ptnr; Leonardo Drs - Bolingbrook. Neighbor parents on the disclosure ladder: Targa Resources Corp; Ineos US I Inc. Largest disclosed chemicals by pounds: Methanol; Tetrachloroethylene; Copper; Chromium; Nickel. Heaviest-reporting states in this extract: Texas; Missouri; Pennsylvania. Industry labels on the parent rollup: Computers and Electronic Products; Machinery. Start from those named sites and neighbors rather than a generic parent blurb; pounds stay disclosure, not risk.
Largest Form R sites under this parent: Drs Nis LLC; Engineered Coil Co. DBA Drs Marlo Coil; Leonardo Drs - Laurel Technologies Ptnr; Leonardo Drs - Bolingbrook. Neighbor parents on the disclosure ladder: Targa Resources Corp; Ineos US I Inc. Largest disclosed chemicals by pounds: Methanol; Tetrachloroethylene; Copper; Chromium; Nickel. Heaviest-reporting states in this extract: Texas; Missouri; Pennsylvania. Industry labels on the parent rollup: Computers and Electronic Products; Machinery.
Leonardo US Holding Inc ranks #1,609 of 4,988 slug-merged TRI parents, a smaller disclosed-volume parent relative to the national Form R parent set. Leonardo US Holding Inc files across 4 states, a regional parent portfolio rather than a single-state discloser. Releases are facility-concentrated: Drs Nis LLC accounts for most of Leonardo US Holding Inc's disclosed pounds, so peer comparisons should weight that site, not an even portfolio average.
Parent aggregation for Leonardo US Holding Inc follows facility-reported names. Compare the named neighbors (Targa Resources Corp; Ineos US I Inc) before treating rank as a hazard score; TRI stays self-reported and unweighted by toxicity.
Where Leonardo US Holding Inc sits among TRI parents
Leonardo US Holding Inc sits on a disclosure ladder beside Targa Resources Corp and Ineos US I Inc. Open those parents for a different facility count, state span, and chemical mix.
Higher disclosed volume
- Targa Resources Corp · rank #1,607 · 105.5M lbs
- Ineos US I Inc · rank #1,608 · 94.2M lbs
Largest chemicals disclosed by Leonardo US Holding Inc
Methanol; Tetrachloroethylene; Copper; Chromium; Nickel lead the Form R pound rollup for this parent, including filings such as Drs Nis LLC. Pound totals, not toxicity-weighted risk.
| Chemical | Disclosed lbs |
|---|---|
| Methanol | 68.5K lbs |
| Tetrachloroethylene | 36.1K lbs |
| Copper | 138 lbs |
| Chromium | 50 lbs |
| Nickel | 42 lbs |
Where does this company operate?
| State | Facilities | Total Releases |
|---|---|---|
| Texas | 1 | 104.6K lbs |
| Missouri | 1 | 230 lbs |
| Pennsylvania | 1 | 2 lbs |
| Illinois | 1 | 0 lbs |
Facilities (4)
| Facility | Releases |
|---|---|
| Drs Nis LLC Dallas, TX | 104.6K lbs |
| Engineered Coil Co. DBA Drs Marlo Coil High Ridge, MO | 230 lbs |
| Leonardo Drs - Laurel Technologies Ptnr Johnstown, PA | 2 lbs |
| Leonardo Drs - Bolingbrook Bolingbrook, IL | 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 Leonardo US Holding Inc on total disclosed release pounds (104.8K lbs) and reporting facility count (4). Release-volume peers include Reynolds Consumer Products LLC, Marmon Engineered Indl & Metal Components Inc, Pyrotek 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.
- Reynolds Consumer Products LLC 3 facilities · 3 states 104.1K lbs disclosed
- Marmon Engineered Indl & Metal Components Inc 6 facilities · 4 states 105.6K lbs disclosed
- Pyrotek Inc 3 facilities · 3 states 105.9K lbs disclosed
- Centerbridge Capital Partners III L.P. 9 facilities · 8 states 103.4K lbs disclosed
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 Texas, Missouri, Pennsylvania; facility-reported names can vary across subsidiaries.
Source: U.S. Environmental Protection Agency, TRI Basic Data Files
What to do with Leonardo US Holding Inc's TRI parent record
From Leonardo US Holding Inc, open Drs Nis LLC or compare against Targa Resources Corp rather than reading rank alone.
- Open the largest Form R site for Leonardo US Holding Inc (Drs Nis LLC in TX). Largest facility
- Compare against Ineos US I Inc, the next-higher disclosed-volume parent. Higher-volume parent
- Browse the full parent release ranking to see where Leonardo US Holding Inc sits among all slug-merged TRI parents. All parent companies
Rank and peers (Targa Resources Corp, Ineos US I Inc) are disclosure volume only, not toxicity-weighted risk or enforcement status.
Use and verify this record
Leonardo US Holding 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.