EPA TRI Facility · Paper
Onyx Specialty Papers Inc. - Willow Mill
South Lee, MA
- Total releases
- 135.9K lbs
- Chemicals reported
- 2
- Carcinogens
- 1
- Primary pathway
- Air Releases
AIR Form-R mix
Onyx Specialty Papers Inc. - Willow Mill: how the 162.5K lbs splits
162.5K lbs across all reported pathways
- Air Releases 153.8K lbs 94.7%
- Water Discharges 7.0K lbs 4.3%
- Off-site Transfers 1.7K lbs 1.0%
Onyx Specialty Papers Inc. - Willow Mill's 162.5K lbs Form-R total is AIR - air releases is 94.7% of the bar. Next segment: water discharges at 4.3%. Leading chemical by pounds: Formaldehyde.
Carcinogen-classified pounds vs other reported pounds
Same cumulative TRI total as above, split by EPA/IARC carcinogen classification on each chemical: pounds share, not chemical count. Classification is not a site health-risk score.
MID volume AIR pathway CARC-HEAVY
Onyx Specialty Papers Inc. - Willow Mill is an EPA Toxics Release Inventory reporter in South Lee, MA, in the paper sector. It reported 26.6K lbs of releases across 2 chemicals in 2024, and 135.9K lbs in total across its 2019-2024 reporting years. That ranks 3,946 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Massachusetts's 373 reporting TRI sites, pounds #1 is not chemical-count #1. Onyx Specialty Papers Inc. - Willow Mill is pounds #28 and chemical-count #159 at 135.9K lbs. Solutia Inc leads reported pounds (2.5M lbs) at 9 chemicals (chemical-count #10). Astro Chemicals Inc leads chemical count at 17 chemicals (5.9K lbs, pounds #154). Reported volume fell against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Pittsfield Generating Co LP; O'Connell Oil Co Merrill Road Facility; Crane & Co. Inc.; Crane Pioneer Mill. Similar-scale Paper peers outside Massachusetts: Loparex Inc; Bedford Technical Products LLC; Upm Raflatac Inc; Westrock - Solvay LLC. Largest disclosed chemicals by pounds: Formaldehyde; Formic acid.
Compare Onyx Specialty Papers Inc. - Willow Mill with
Nearest reporters in Massachusetts
- Pittsfield Generating Co LP Pittsfield · 22.4K lbs
- O'Connell Oil Co Merrill Road Facility Pittsfield · 28.8K lbs
- Crane & Co. Inc. Dalton · 0 lbs
- Crane Pioneer Mill Dalton · 0 lbs
Similar-scale Paper sites elsewhere: Loparex Inc (NC) · Bedford Technical Products LLC (PA) · Upm Raflatac Inc (NC)
Onyx Specialty Papers Inc. - Willow Mill stamps MID volume with a dominant AIR pathway (94.7% air releases) across 2 chemicals · 1 carcinogen-classified. Cumulative Form-R extract: 135.9K lbs (2019–2024). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Loparex Inc and Bedford Technical Products LLC.
Onyx Specialty Papers Inc. - Willow Mill vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
136K lbs Top 15% higher than 85% of 25,986 reporting TRI facilities
Each bar is a $1M-wide band; taller bars hold more reporting TRI facilities. The dashed line and filled bar mark this facility. Hover, focus, or tap a bar for its full count, share, and position.
Source U.S. Environmental Protection Agency, Toxics Release Inventory · 2023 reporting year
Onyx Specialty Papers Inc. - Willow Mill inside Berkshire's TRI pounds
Among the 384 Paper facilities in this database, Onyx Specialty Papers Inc. - Willow Mill reports the 159th-largest volume (135.9K lbs). This one site accounts for 67.5% of every pound reported in Berkshire. Its reported volume is concentrated rather than spread: Formaldehyde alone is 97.5% of the total. Carcinogen-classified chemicals make up 97.5% of the reported pounds, not just of the chemical count. Scale peers outside Massachusetts include Loparex Inc and Bedford Technical Products LLC.
County-dominant here means ≥25% of Berkshire's reported pounds (201.4K lbs county total). Shares only print when the site reports ≥1,000 lbs.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Onyx Specialty Papers Inc. - Willow Mill's total reported releases fell from 28.1 thousand lb in 2022 to 24.6 thousand lb in 2023, based on EPA TRI filings.
- Onyx Specialty Papers Inc. - Willow Mill's off-site transfers fell from 294 lb in 2022 to 243 lb in 2023, based on EPA TRI filings.
- Onyx Specialty Papers Inc. - Willow Mill's air releases fell from 26.5 thousand lb in 2022 to 23.2 thousand lb in 2023, based on EPA TRI filings.
- Onyx Specialty Papers Inc. - Willow Mill's water releases fell from 1.3 thousand lb in 2022 to 1.1 thousand lb in 2023, based on EPA TRI filings.
Onyx Specialty Papers Inc. - Willow Mill Form-R facts
Compare this facility
See how Onyx Specialty Papers Inc. - Willow Mill stacks up against nearby facilities and the typical reporter.
6.1× more than the comparison
2.0× more than the comparison
Comparison reflects reported pounds and chemical counts, not toxicity or health risk. Averages cover facilities reporting any release.
How does this facility release toxic chemicals?
How Onyx Specialty Papers Inc. - Willow Mill releases toxic chemicals into the environment. Total: 162.5K lbs.
Emissions Trend Summary
From 2019 to 2024, total releases decreased by 13% (30.7K lbs to 26.6K lbs).
Onyx Specialty Papers Inc. - Willow Mill: annual Form-R pounds
MID site · AIR pathway · TRI years 2019–2024
- 2019 0
- 2020 0
- 2021 0
- 2022 0
- 2023 0
- 2024 0
What this shows Onyx Specialty Papers Inc. - Willow Mill year-over-year reported totals (decreased by 13% from 2019 to 2024). TRI figures are self-reported estimates and can swing with production, waste handling, and reporting changes, not only with controls. Lead chemical in the extract: Formaldehyde.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 30.7K lbs | 2 |
| 2020 | 22.4K lbs | 2 |
| 2021 | 30.1K lbs | 2 |
| 2022 | 28.1K lbs | 2 |
| 2023 | 24.6K lbs | 2 |
| 2024 | 26.6K lbs | 2 |
Chemical Releases
Aggregated across all reporting years (2019–2024). 1 of 2 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Formaldehyde | 158.4K lbs | Carcinogen |
| Formic acid | 4.1K lbs | - |
Onyx Specialty Papers Inc. - Willow Mill · AIR-pathway site
Nearest TRI Facilities to Onyx Specialty Papers Inc. - Willow Mill
Closest other reporters in Massachusetts - including Pittsfield Generating Co LP, O'Connell Oil Co Merrill Road Facility, Crane & Co. Inc., ordered by distance.
Showing 8 of 372 other reporting facilities in Massachusetts.
Similar Paper Facilities
Other Paper facilities with similar total release volumes (±80%), outside Massachusetts - e.g. Loparex Inc, Bedford Technical Products LLC, Upm Raflatac Inc.
Compare beyond Massachusetts
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Onyx Specialty Papers Inc. - Willow Mill on cumulative reported pounds (135.9K lbs) and distinct chemical count (2). Release-pound peers include Edgewater Power Boats LLC, Bostik Inc, Magnetic & Penetrant Services Co/mapsco. Chemical-count peers include Idi Caribe Inc, Suiza Dairy Corp, Edwards Lifesciences Technology Sarl. Neighborhoods are forced disjoint so each axis surfaces a different set of sites.
Similar reported release pounds
Nearest out-of-state reporters (≥1,000 lbs) by absolute TRI pounds, not same-industry or same-county neighbors.
- Edgewater Power Boats LLC Edgewater, FL · Transportation Equipment 135.9K lbs reported
- Bostik Inc Calumet City, IL · Chemicals 135.9K lbs reported
- Magnetic & Penetrant Services Co/mapsco Seattle, WA · Fabricated Metals 136.0K lbs reported
- Whirlpool Corp Amana, IA · Electrical Equipment 136.0K lbs reported
Similar chemical count
Nearest out-of-state reporters by distinct Form-R chemicals (deduped against the release-pound neighborhood).
About TRI Data
Data as of 2023 reporting year. Source: U.S. Environmental Protection Agency (EPA) Toxic Release Inventory.
On this page the largest disclosed chemicals include Formaldehyde, Formic acid; nearby reporters include Pittsfield Generating Co LP. Onyx Specialty Papers Inc. - Willow Mill stamps MID volume · AIR pathway · CARC-HEAVY carcinogen-lbs on this Form-R extract. Totals are self-reported estimates under EPCRA §313, not measured stack emissions or a health-risk score.
Use and verify this record
This Onyx Specialty Papers Inc. - Willow Mill TRI extract (MID · AIR · CARC-HEAVY · lead Formaldehyde) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Onyx Specialty Papers Inc. - Willow Mill totals are self-reported EPCRA §313 estimates for South Lee, MA, latest year 2023. Form-R rows span 2019–2024 (6 years). NAICS 322121 · Paper. 67.5% of Berkshire TRI pounds in this extract. Nearest ABS peer: Edgewater Power Boats LLC (Δ 0 lbs). Pounds ≠ exposure.
Onyx Specialty Papers Inc. - Willow Mill stamps MID volume · AIR pathway · CARC-HEAVY · lead Formaldehyde. PlainEnviro renders this EPA Form-R extract from its pipeline; no figure is typed in by an editor. Corrections: editorial policy.
All federal data sources used on this page
- EPA Toxics Release Inventory (TRI) Basic Data Files - annual self-reported chemical-release filings. epa.gov
- EPA TRI Program reference - how chemicals and reported releases are counted. epa.gov
- EPA Facility Registry Service - facility location and identity. epa.gov
- EPA ECHO - regulatory and compliance context. epa.gov
- EPA Envirofacts - the EPA data warehouse exposing these datasets. epa.gov