Mauser Corp
3 facilities · 3 states · 702.2K lbs total releases
According to the EPA Toxics Release Inventory, Mauser Corp is the reported parent of 3 Form R facilities across 3 states, disclosing 702.2K lbs of toxic releases. 1 of 9 reported chemicals carry a carcinogen classification in the TRI extract. The heaviest-reporting state by release volume is Ohio (461.2K lbs). Those TRI figures remain self-reported disclosure pounds for Mauser Corp, including carcinogen-flagged substances, not a measured public-health risk score.
Release-over-release change
What changed for Mauser Corp: EPA TRI 2023 reporting year
Same facilities, both years
-17.8%
2 facilities that filed in 2022 and 2023
Whole inventory
-25.2%
123.2 thousand lb → 92.2 thousand lb, every facility that filed
Between the two reporting years, 0 facilities filed for the first time and 1 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Mauser Corp's total reported releases fell from 112.2 thousand lb in 2022 to 92.2 thousand lb in 2023, based on EPA TRI filings.
- Mauser Corp's off-site transfers fell from 30.4 thousand lb in 2022 to 16.6 thousand lb in 2023, based on EPA TRI filings.
- Mauser Corp's chemicals reported fell from 3 in 2022 to 2 in 2023, based on EPA TRI filings.
- Mauser Corp's air releases fell from 81.8 thousand lb in 2022 to 75.6 thousand lb in 2023, based on EPA TRI filings.
TRI parent disclosure trail
Read Mauser Corp from filing to facility
Largest Form R sites under this parent: Mauser - Mason; Mauser USA LLC - Woodbridge (nj); Mauser USA LLC Warren Facility. Neighbor parents on the disclosure ladder: Cleveland-Cliffs Inc; Ineos US I Inc. Largest disclosed chemicals by pounds: Certain glycol ethers; Xylene (mixed isomers); sec-Butyl alcohol; Ethylbenzene; n-Butyl alcohol. Heaviest-reporting states in this extract: Ohio; New Jersey; Pennsylvania. Industry labels on the parent rollup: Fabricated Metals. 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: Mauser - Mason; Mauser USA LLC - Woodbridge (nj); Mauser USA LLC Warren Facility. Neighbor parents on the disclosure ladder: Cleveland-Cliffs Inc; Ineos US I Inc. Largest disclosed chemicals by pounds: Certain glycol ethers; Xylene (mixed isomers); sec-Butyl alcohol; Ethylbenzene; n-Butyl alcohol. Heaviest-reporting states in this extract: Ohio; New Jersey; Pennsylvania. Industry labels on the parent rollup: Fabricated Metals.
Mauser Corp ranks #768 of 4,988 slug-merged TRI parents, a smaller disclosed-volume parent relative to the national Form R parent set. Mauser Corp files across 3 states, a regional parent portfolio rather than a single-state discloser. Mauser Corp's disclosed pounds are spread across 3 facilities, no single site dominates the parent total in this extract.
Parent aggregation for Mauser Corp follows facility-reported names. Compare the named neighbors (Cleveland-Cliffs Inc; Ineos US I Inc) before treating rank as a hazard score; TRI stays self-reported and unweighted by toxicity.
Where Mauser Corp sits among TRI parents
Mauser Corp sits on a disclosure ladder beside Cleveland-Cliffs Inc and Ineos US I Inc. Open those parents for a different facility count, state span, and chemical mix.
Higher disclosed volume
- Cleveland-Cliffs Inc · rank #766 · 64.3M lbs
- Ineos US I Inc · rank #767 · 42.4M lbs
Largest chemicals disclosed by Mauser Corp
Certain glycol ethers; Xylene (mixed isomers); sec-Butyl alcohol; Ethylbenzene; n-Butyl alcohol lead the Form R pound rollup for this parent, including filings such as Mauser - Mason. Pound totals, not toxicity-weighted risk.
| Chemical | Disclosed lbs |
|---|---|
| Certain glycol ethers | 554.0K lbs |
| Xylene (mixed isomers) | 85.2K lbs |
| sec-Butyl alcohol | 60.2K lbs |
| Ethylbenzene | 19.1K lbs |
| n-Butyl alcohol | 17.9K lbs |
Where does this company operate?
| State | Facilities | Total Releases |
|---|---|---|
| Ohio | 1 | 461.2K lbs |
| New Jersey | 1 | 193.0K lbs |
| Pennsylvania | 1 | 48.0K lbs |
Facilities (3)
| Facility | Releases |
|---|---|
| Mauser - Mason Mason, OH | 461.2K lbs |
| Mauser USA LLC - Woodbridge (nj) Woodbridge, NJ | 193.0K lbs |
| Mauser USA LLC Warren Facility Warren, PA | 48.0K 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 Mauser Corp on total disclosed release pounds (702.2K lbs) and reporting facility count (3). Release-volume peers include Truck Accessories Group LLC, Michigan Sugar Co, Stella-Jones US Holding Corp. Facility-count peers include A-Gas US Holdings Inc, Abb Holdings Inc, Adams Resources & Energy 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 Ohio, New Jersey, Pennsylvania; facility-reported names can vary across subsidiaries.
Source: U.S. Environmental Protection Agency, TRI Basic Data Files
What to do with Mauser Corp's TRI parent record
From Mauser Corp, open Mauser - Mason or compare against Cleveland-Cliffs Inc rather than reading rank alone.
- Open the largest Form R site for Mauser Corp (Mauser - Mason in OH). 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 Mauser Corp sits among all slug-merged TRI parents. All parent companies
Rank and peers (Cleveland-Cliffs Inc, Ineos US I Inc) are disclosure volume only, not toxicity-weighted risk or enforcement status.
Use and verify this record
Mauser Corp'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.