EPA TRI Facility · Nonmetallic Mineral Product
Westlake Royal Roofing - Rialto
Rialto, CA · Parent: Westlake Corp
- Total releases
- 13.4K lbs
- Chemicals reported
- 2
- Carcinogens
- 1
- Primary pathway
- Off-site Transfers
OFFSITE Form-R mix
Westlake Royal Roofing - Rialto: how the 13.4K lbs splits
13.4K lbs across all reported pathways
- Off-site Transfers 13.4K lbs 100.0%
Westlake Royal Roofing - Rialto's 13.4K lbs Form-R total is OFFSITE - off-site transfers is 100.0% of the bar. Off-site transfers stay separate from air, water, and land releases. Leading chemical by pounds: Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region).
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.
LIGHT volume OFFSITE pathway CARC-LEAN
Westlake Royal Roofing - Rialto is an EPA Toxics Release Inventory reporter in Rialto, CA, in the nonmetallic mineral product sector. It reported 941 lbs of releases across 2 chemicals in 2023, and 13.4K lbs in total across its 2019-2023 reporting years. That ranks 9,159 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In California's 1,149 reporting TRI sites, pounds #1 is not chemical-count #1. Westlake Royal Roofing - Rialto is pounds #367 and chemical-count #582 at 13.4K lbs. Clean Harbors Buttonwillow LLC leads reported pounds (50.4M lbs) at 45 chemicals (chemical-count #2). Chevron Products Co Richmond Refinery leads chemical count at 46 chemicals (3.0M lbs, pounds #13). Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Rialto Concrete Products Inc; Rialto Plant 24; San Bernardino Steel; American Handforge. Similar-scale Nonmetallic Mineral Product peers outside California: Husqvarna Construction Products N.a. Inc.; Johns Manville; Phoenix Cement Co; Harbisonwalker International Inc. Other Westlake Corp sites in this extract: Westlake Longview Corp; Westlake US 2 LLC; Westlake Polymers LLC; Westlake Vinyls Inc. Largest disclosed chemicals by pounds: Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region); Lead.
Westlake Royal Roofing - Rialto stamps LIGHT volume with a dominant OFFSITE pathway (100.0% off-site transfers) across 2 chemicals · 1 carcinogen-classified. Cumulative Form-R extract: 13.4K lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Husqvarna Construction Products N.a. Inc. and Johns Manville.
Westlake Royal Roofing - Rialto vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
13K lbs Top 35% higher than 65% 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
Westlake Royal Roofing - Rialto: Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)-led volume
Among the 3,265 Nonmetallic Mineral Product facilities in this database, Westlake Royal Roofing - Rialto reports the 344th-largest volume, placing it in the top 10.5% of its sector. Its reported volume is concentrated rather than spread: Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region) alone is 93.8% of the total. Scale peers outside California include Husqvarna Construction Products N.a. Inc. and Johns Manville.
Concentrated means ≥60% of Westlake Royal Roofing - Rialto's pounds in one chemical - here Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region) at 93.8%. Not a toxicity score.
Westlake Royal Roofing - Rialto Form-R facts
Compare this facility
See how Westlake Royal Roofing - Rialto stacks up against nearby facilities and the typical reporter.
67755.3× 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 Westlake Royal Roofing - Rialto releases toxic chemicals into the environment. Total: 13.4K lbs.
Emissions Trend Summary
From 2019 to 2023, total releases decreased by 36% (1.5K lbs to 941 lbs).
Westlake Royal Roofing - Rialto: annual Form-R pounds
LIGHT site · OFFSITE pathway · TRI years 2019–2023
- 2019 0
- 2020 0
- 2021 0
- 2022 0
- 2023 0
What this shows Westlake Royal Roofing - Rialto year-over-year reported totals (decreased by 36% 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: Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region).
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 1.5K lbs | 2 |
| 2020 | 9.2K lbs | 2 |
| 2021 | 824 lbs | 2 |
| 2022 | 941 lbs | 2 |
| 2023 | 941 lbs | 2 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 1 of 2 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region) | 12.6K lbs | - |
| Lead | 832 lbs | Carcinogen |
Westlake Royal Roofing - Rialto · OFFSITE-pathway site
Nearest TRI Facilities to Westlake Royal Roofing - Rialto
Closest other reporters in California - including Rialto Concrete Products Inc, Rialto Plant 24, San Bernardino Steel, ordered by distance.
Showing 8 of 1,148 other reporting facilities in California.
Similar Nonmetallic Mineral Product Facilities
Other Nonmetallic Mineral Product facilities with similar total release volumes (±80%), outside California - e.g. Husqvarna Construction Products N.a. Inc., Johns Manville, Phoenix Cement Co.
Compare beyond California
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Westlake Royal Roofing - Rialto on cumulative reported pounds (13.4K lbs) and distinct chemical count (2). Release-pound peers include Akzonobel Coatings Inc, The C.a. Lawton Co., The Timken Co - Tyger River Plant. 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.
- Akzonobel Coatings Inc Pontiac, MI · Chemicals 13.4K lbs reported
- The C.a. Lawton Co. Minster, OH · Primary Metals 13.4K lbs reported
- The Timken Co - Tyger River Plant Union, SC · Fabricated Metals 13.4K lbs reported
- Specialty Fabrics & Converting Hogansville, GA · Textile Product 13.4K lbs reported
Similar chemical count
Nearest out-of-state reporters by distinct Form-R chemicals (deduped against the release-pound neighborhood).
Other Westlake Corp Facilities
Same-parent TRI sites ranked by reported releases - including Westlake Longview Corp, Westlake US 2 LLC, Westlake Polymers 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 Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region), Lead; nearby reporters include Rialto Concrete Products Inc. Westlake Royal Roofing - Rialto stamps LIGHT volume · OFFSITE pathway · CARC-LEAN 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 Westlake Royal Roofing - Rialto TRI extract (LIGHT · OFFSITE · CARC-LEAN · lead Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Westlake Royal Roofing - Rialto totals are self-reported EPCRA §313 estimates for Rialto, CA, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 327390 · Nonmetallic Mineral Product. 0.2% of San Bernardino TRI pounds in this extract. Nearest ABS peer: Akzonobel Coatings Inc (Δ 1 lbs). Pounds ≠ exposure.
Westlake Royal Roofing - Rialto stamps LIGHT volume · OFFSITE pathway · CARC-LEAN · lead Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region). 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