One Rock Capital
1 facility · 1 state · 1.7M lbs total releases
According to the EPA Toxics Release Inventory, One Rock Capital is the reported parent of 1 Form R facility across 1 state, disclosing 1.7M lbs of toxic releases. 3 of 11 reported chemicals carry a carcinogen classification in the TRI extract. The heaviest-reporting state by release volume is Washington (1.7M lbs). Those TRI figures remain self-reported disclosure pounds for One Rock Capital, including carcinogen-flagged substances, not a measured public-health risk score.
Release-over-release change
What changed for One Rock Capital: EPA TRI 2023 reporting year
Same facilities, both years
-23.0%
1 facilities that filed in 2022 and 2023
Whole inventory
-23.0%
343.2 thousand lb → 264.1 thousand lb, every facility that filed
- One Rock Capital's total reported releases fell from 343.2 thousand lb in 2022 to 264.1 thousand lb in 2023, based on EPA TRI filings.
- One Rock Capital's off-site transfers rose from 36 lb in 2022 to 47 lb in 2023, based on EPA TRI filings.
- One Rock Capital's air releases fell from 343.2 thousand lb in 2022 to 264.1 thousand lb in 2023, based on EPA TRI filings.
TRI parent disclosure trail
Read One Rock Capital from filing to facility
One Rock Capital maps to a single Form R site (North Pacific Paper Co LLC Longview) in Washington. Open that filing for the chemical mix; 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: North Pacific Paper Co LLC Longview. Neighbor parents on the disclosure ladder: Lamb Weston Inc; Teck American Inc. Largest disclosed chemicals by pounds: Methanol; Phenol; Acetaldehyde; Styrene; Hydrogen sulfide. Heaviest-reporting states in this extract: Washington. Industry labels on the parent rollup: Paper.
One Rock Capital ranks #504 of 4,988 slug-merged TRI parents, a smaller disclosed-volume parent relative to the national Form R parent set. One Rock Capital's TRI Form R footprint is concentrated in a single state (Washington), so statewide context matters more than a multi-state portfolio read. This parent maps to a single reporting facility (North Pacific Paper Co LLC Longview), so the company total and that site's Form R are the same disclosure.
Parent aggregation for One Rock Capital follows facility-reported names. Compare the named neighbors (Lamb Weston Inc; Teck American Inc) before treating rank as a hazard score; TRI stays self-reported and unweighted by toxicity.
Where One Rock Capital sits among TRI parents
One Rock Capital sits on a disclosure ladder beside Lamb Weston Inc and Teck American Inc. Open those parents for a different facility count, state span, and chemical mix.
Higher disclosed volume
- Lamb Weston Inc · rank #502 · 13.6M lbs
- Teck American Inc · rank #503 · 6.0M lbs
Largest chemicals disclosed by One Rock Capital
Methanol; Phenol; Acetaldehyde; Styrene; Hydrogen sulfide lead the Form R pound rollup for this parent, including filings such as North Pacific Paper Co LLC Longview. Pound totals, not toxicity-weighted risk.
| Chemical | Disclosed lbs |
|---|---|
| Methanol | 1.1M lbs |
| Phenol | 259.8K lbs |
| Acetaldehyde | 240.8K lbs |
| Styrene | 27.2K lbs |
| Hydrogen sulfide | 16.6K lbs |
Facilities (1)
| Facility | Releases |
|---|---|
| North Pacific Paper Co LLC Longview Longview, WA | 1.7M lbs |
Frequently Asked Questions
How much pollution does One Rock Capital release?
How many facilities does One Rock Capital operate?
What industries and chemicals show up for One Rock Capital?
Does One Rock Capital release carcinogens?
Compare beyond the release ladder
Nationwide peers by disclosed pounds & facility count
Cross-portfolio TRI parents nearest One Rock Capital on total disclosed release pounds (1.7M lbs) and reporting facility count (1). Release-volume peers include Swagelok Co, The International Group Inc, Lhoist Na 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.
About This Data
EPA TRI parent totals cover all media. This extract's heaviest states for the parent are Washington; facility-reported names can vary across subsidiaries.
Source: U.S. Environmental Protection Agency, TRI Basic Data Files
What to do with One Rock Capital's TRI parent record
From One Rock Capital, open North Pacific Paper Co LLC Longview or compare against Lamb Weston Inc rather than reading rank alone.
- Open the largest Form R site for One Rock Capital (North Pacific Paper Co LLC Longview in WA). Largest facility
- Compare against Teck American Inc, the next-higher disclosed-volume parent. Higher-volume parent
- Browse the full parent release ranking to see where One Rock Capital sits among all slug-merged TRI parents. All parent companies
Rank and peers (Lamb Weston Inc, Teck American Inc) are disclosure volume only, not toxicity-weighted risk or enforcement status.
Use and verify this record
One Rock Capital'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.