EPA TRI Facility · Wood Products
Masonite Corp
Laurel, MS · Parent: Owens Corning
- Total releases
- 937.7K lbs
- Chemicals reported
- 5
- Carcinogens
- 3
- Primary pathway
- Off-site Transfers
MIXED Form-R mix
Masonite Corp: how the 937.7K lbs splits
937.7K lbs across all reported pathways
- Off-site Transfers 594.2K lbs 63.4%
- Air Releases 343.4K lbs 36.6%
- Water Discharges 30 lbs <0.1%
Masonite Corp's 937.7K lbs Form-R total is MIXED - off-site transfers is 63.4% of the bar. Next segment: air releases at 36.6%. Leading chemical by pounds: Styrene.
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 MIXED pathway CARC-HEAVY
Masonite Corp is an EPA Toxics Release Inventory reporter in Laurel, MS, in the wood products sector. It reported 182.3K lbs of releases across 5 chemicals in 2023, and 937.7K lbs in total across its 2019-2023 reporting years. That ranks 1,358 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Mississippi's 328 reporting TRI sites, pounds #1 is not chemical-count #1. Masonite Corp is pounds #29 and chemical-count #68 at 937.7K lbs. Tronox LLC leads reported pounds (64.0M lbs) at 17 chemicals (chemical-count #12). Chevron Products Co Pascagoula Refinery leads chemical count at 46 chemicals (7.4M lbs, pounds #9). Reported volume fell against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Amick Farms LLC - Laurel Processing Plant; Championx-Laurel; Sanderson Farms Inc; Essmueller Co. Similar-scale Wood Products peers outside Mississippi: Roseburg Forest Products Dillard Complex; Arauco Na Grayling Particleboard; Weyerhaeuser Nr; Weyerhaeuser Nr Co. Other Owens Corning sites in this extract: Owens Corning Insulating Systems LLC Newark Oh Facility; Owens Corning Insulating Systems LLC - Waxahachie; Owens Corning Insulating Systems LLC; Owens Corning Insulating Systems LLC Fairburn Ga. Largest disclosed chemicals by pounds: Styrene; Zinc compounds; Methanol; Formaldehyde.
Masonite Corp is a MID · MIXED-pathway Form-R site in Laurel, MS: 937.7K lbs across 5 chemicals (3 carcinogen-classified, CARC-HEAVY). No single media clears 70% of the bar (lead segment off-site transfers at 63.4%). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Roseburg Forest Products Dillard Complex and Arauco Na Grayling Particleboard.
Masonite Corp vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
938K lbs Top 5% higher than 95% 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
Masonite Corp: Styrene-led volume
Among the 823 Wood Products facilities in this database, Masonite Corp reports the 5th-largest volume, placing it in the top 0.6% of its sector. Its reported volume is concentrated rather than spread: Styrene alone is 80.2% of the total. Carcinogen-classified chemicals make up 82.8% of the reported pounds, not just of the chemical count. Scale peers outside Mississippi include Roseburg Forest Products Dillard Complex and Arauco Na Grayling Particleboard.
Concentrated means ≥60% of Masonite Corp's pounds in one chemical - here Styrene at 80.2%. Not a toxicity score.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Masonite Corp's total reported releases fell from 207.8 thousand lb in 2022 to 182.3 thousand lb in 2023, based on EPA TRI filings.
- Masonite Corp's air releases fell from 68.9 thousand lb in 2022 to 59.2 thousand lb in 2023, based on EPA TRI filings.
- Masonite Corp's off-site transfers fell from 138.9 thousand lb in 2022 to 123.1 thousand lb in 2023, based on EPA TRI filings.
Masonite Corp Form-R facts
Compare this facility
See how Masonite Corp stacks up against nearby facilities and the typical reporter.
38.0× more than the comparison
5.0× 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 Masonite Corp releases toxic chemicals into the environment. Total: 937.7K lbs.
Emissions Trend Summary
From 2019 to 2023, total releases increased by 8% (168.1K lbs to 182.3K lbs).
Masonite Corp: annual Form-R pounds
MID site · MIXED pathway · TRI years 2019–2023
- 2019 0
- 2020 0
- 2021 0
- 2022 0
- 2023 0
What this shows Masonite Corp year-over-year reported totals (increased by 8% from 2019 to 2023). 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: Styrene.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 168.1K lbs | 5 |
| 2020 | 195.2K lbs | 5 |
| 2021 | 184.3K lbs | 5 |
| 2022 | 207.8K lbs | 5 |
| 2023 | 182.3K lbs | 5 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 3 of 5 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Styrene | 751.6K lbs | Carcinogen |
| Zinc compounds | 101.9K lbs | - |
| Methanol | 59.2K lbs | - |
| Formaldehyde | 24.9K lbs | Carcinogen |
| Lead | 43 lbs | Carcinogen |
Masonite Corp in Jones
Nearest TRI Facilities to Masonite Corp
Closest other reporters in Mississippi - including Amick Farms LLC - Laurel Processing Plant, Championx-Laurel, Sanderson Farms Inc, ordered by distance.
Showing 8 of 327 other reporting facilities in Mississippi.
Similar Wood Products Facilities
Other Wood Products facilities with similar total release volumes (±80%), outside Mississippi - e.g. Roseburg Forest Products Dillard Complex, Arauco Na Grayling Particleboard, Weyerhaeuser Nr.
Compare beyond Mississippi
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Masonite Corp on cumulative reported pounds (937.7K lbs) and distinct chemical count (5). Release-pound peers include Invista Longview, Aquatic Co, Covestro. Chemical-count peers include Abbvie Ltd, Lilly del Caribe Inc Carolin A, Baxter Healthcare of Puerto Rico LLC. 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.
Similar chemical count
Nearest out-of-state reporters by distinct Form-R chemicals (deduped against the release-pound neighborhood).
Other Owens Corning Facilities
Same-parent TRI sites ranked by reported releases - including Owens Corning Insulating Systems LLC Newark Oh Facility, Owens Corning Insulating Systems LLC - Waxahachie, Owens Corning Insulating Systems LLC.
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 Styrene, Zinc compounds, Methanol, Formaldehyde; nearby reporters include Amick Farms LLC - Laurel Processing Plant. Masonite Corp stamps MID volume · MIXED 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 Masonite Corp TRI extract (MID · MIXED · CARC-HEAVY · lead Styrene) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Masonite Corp totals are self-reported EPCRA §313 estimates for Laurel, MS, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 321219 · Wood Products. 14.9% of Jones TRI pounds in this extract. Nearest ABS peer: Invista Longview (Δ 715 lbs). Pounds ≠ exposure.
Masonite Corp stamps MID · MIXED pathway (off-site transfers leads at 63.4%). Pipeline-rendered EPA Form-R only - no editor-typed pounds. 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