EPA TRI Facility · Nonmetallic Mineral Product
Westlake Royal Roofing - Corona
Corona, CA · Parent: Westlake Corp
- Total releases
- 64 lbs
- Chemicals reported
- 2
- Carcinogens
- 1
- Primary pathway
- Air Releases
AIR Form-R mix
Westlake Royal Roofing - Corona: how the 64 lbs splits
64 lbs across all reported pathways
- Air Releases 63 lbs 98.1%
- Off-site Transfers 1 lbs 1.9%
Westlake Royal Roofing - Corona's 64 lbs Form-R total is AIR - air releases is 98.1% of the bar. Next segment: off-site transfers at 1.9%. Leading chemical by pounds: Manganese.
TRACE volume AIR pathway CARC-MID
Westlake Royal Roofing - Corona is an EPA Toxics Release Inventory reporter in Corona, CA, in the nonmetallic mineral product sector. It reported 16 lbs of releases across 2 chemicals in 2023, and 64 lbs in total across its 2019-2023 reporting years. That ranks 16,985 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 - Corona is pounds #857 and chemical-count #689 at 64 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: 3V Fastners Co Inc; Brooks Instrument; Anaco & Clow Valve; Rw Lyall & Co Inc. Similar-scale Nonmetallic Mineral Product peers outside California: American Gypsum South Carolina LLC; Plant #6; Cpm Development Corp. DBA Hood River Sand Gravel & Ready-M; Tri-State Ready-Mix Plant 22. 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: Manganese; Lead.
Compare Westlake Royal Roofing - Corona with
Nearest reporters in California
- 3V Fastners Co Inc Corona · 7 lbs
- Brooks Instrument Corona · 0 lbs
- Anaco & Clow Valve Corona · 12.6K lbs
- Rw Lyall & Co Inc Corona · 109 lbs
Similar-scale Nonmetallic Mineral Product sites elsewhere: American Gypsum South Carolina LLC (SC) · Plant #6 (KS) · Cpm Development Corp. DBA Hood River Sand Gravel & Ready-M (OR)
Westlake Royal Roofing - Corona stamps TRACE volume with a dominant AIR pathway (98.1% air releases) across 2 chemicals · 1 carcinogen-classified. Cumulative Form-R extract: 64 lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include American Gypsum South Carolina LLC and Plant #6.
Westlake Royal Roofing - Corona vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
64 lbs 35th percentile higher than 35% 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 - Corona in the Nonmetallic Mineral Product sector extract
Among the 3,265 Nonmetallic Mineral Product facilities in this database, Westlake Royal Roofing - Corona reports the 950th-largest volume (64 lbs). Scale peers outside California include American Gypsum South Carolina LLC and Plant #6.
Sector rank uses reported TRI pounds only. Share callouts need ≥1,000 lbs so tiny totals cannot mint a false signal.
Westlake Royal Roofing - Corona Form-R facts
Compare this facility
See how Westlake Royal Roofing - Corona stacks up against nearby facilities and the typical reporter.
8.9× more than the comparison
About the same as 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 - Corona releases toxic chemicals into the environment. Total: 64 lbs.
Emissions Trend Summary
From 2019 to 2023, total releases increased by 21% (13 lbs to 16 lbs).
Westlake Royal Roofing - Corona: annual Form-R pounds
TRACE site · AIR pathway · TRI years 2019–2023
- 2019 0
- 2020 0
- 2021 0
- 2022 0
- 2023 0
What this shows Westlake Royal Roofing - Corona year-over-year reported totals (increased by 21% 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: Manganese.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 13 lbs | 2 |
| 2020 | 14 lbs | 2 |
| 2021 | 8 lbs | 2 |
| 2022 | 14 lbs | 2 |
| 2023 | 16 lbs | 2 |
Westlake Royal Roofing - Corona · AIR-pathway site
Nearest TRI Facilities to Westlake Royal Roofing - Corona
Closest other reporters in California - including 3V Fastners Co Inc, Brooks Instrument, Anaco & Clow Valve, 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. American Gypsum South Carolina LLC, Plant #6, Cpm Development Corp. DBA Hood River Sand Gravel & Ready-M.
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 Manganese, Lead; nearby reporters include 3V Fastners Co Inc. Westlake Royal Roofing - Corona stamps TRACE volume · AIR pathway · CARC-MID 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 - Corona TRI extract (TRACE · AIR · CARC-MID · lead Manganese) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Westlake Royal Roofing - Corona totals are self-reported EPCRA §313 estimates for Corona, CA, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 327120 · Nonmetallic Mineral Product. 0.0% of Riverside TRI pounds in this extract. Nearest ABS peer: Ferratex Solutions LLC (Δ 0 lbs). Pounds ≠ exposure.
Westlake Royal Roofing - Corona stamps TRACE volume · AIR pathway · CARC-MID · lead Manganese. 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