EPA TRI Facility · Other
Sterigenics-Ontario Facility
Ontario, CA · Parent: Sotera Health LLC
- Total releases
- 473 lbs
- Chemicals reported
- 2
- Carcinogens
- 1
- Primary pathway
- Air Releases
AIR Form-R mix
Sterigenics-Ontario Facility: how the 473 lbs splits
473 lbs across all reported pathways
- Air Releases 473 lbs 100.0%
Sterigenics-Ontario Facility's 473 lbs Form-R total is AIR - air releases is 100.0% of the bar. Off-site transfers stay separate from air, water, and land releases. Leading chemical by pounds: Ethylene oxide.
TRACE volume AIR pathway CARC-HEAVY
Sterigenics-Ontario Facility is an EPA Toxics Release Inventory reporter in Ontario, CA, in the other sector. It reported 208 lbs of releases across 2 chemicals in 2023, and 473 lbs in total across its 2022-2023 reporting years. That ranks 14,890 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. Sterigenics-Ontario Facility is pounds #730 and chemical-count #668 at 473 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). Reported volume fell against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Armorcast Products Co; L&p Financial Services Co.; New-Indy Containerboard Ontario LLC; Sherwin-Williams Co. Similar-scale Other peers outside California: Palmero Health; US Air Force/scott Air Force Base; Arcosa Lws LLC Streetman Tx; Steritec Services LLC. Other Sotera Health LLC sites in this extract: Sterigenics US LLC - Santa Teresa Facility; Sterigenics US Llc-Grand Prairie Texas Facility; Sterigenics US Llc-Queensbury Ny Facility; Sterigenics US Llc-Charlotte Nc Facility. Largest disclosed chemicals by pounds: Ethylene oxide; Ethylene glycol.
Sterigenics-Ontario Facility stamps TRACE volume with a dominant AIR pathway (100.0% air releases) across 2 chemicals · 1 carcinogen-classified. Cumulative Form-R extract: 473 lbs (2022–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Palmero Health and US Air Force/scott Air Force Base.
Sterigenics-Ontario Facility vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
473 lbs 43rd percentile higher than 43% 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
Sterigenics-Ontario Facility in the Other sector extract
Among the 632 Other facilities in this database, Sterigenics-Ontario Facility reports the 430th-largest volume (473 lbs). Scale peers outside California include Palmero Health and US Air Force/scott Air Force Base.
Sector rank uses reported TRI pounds only. Share callouts need ≥1,000 lbs so tiny totals cannot mint a false signal.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Sterigenics-Ontario Facility's total reported releases fell from 265 lb in 2022 to 208 lb in 2023, based on EPA TRI filings.
- Sterigenics-Ontario Facility's air releases fell from 265 lb in 2022 to 208 lb in 2023, based on EPA TRI filings.
Sterigenics-Ontario Facility Form-R facts
Compare this facility
See how Sterigenics-Ontario Facility stacks up against nearby facilities and the typical reporter.
99% less 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 Sterigenics-Ontario Facility releases toxic chemicals into the environment. Total: 473 lbs.
Emissions Trend Summary
From 2022 to 2023, total releases decreased by 22% (265 lbs to 208 lbs).
Sterigenics-Ontario Facility: annual Form-R pounds
TRACE site · AIR pathway · TRI years 2022–2023
- 2022 0
- 2023 0
What this shows Sterigenics-Ontario Facility year-over-year reported totals (decreased by 22% from 2022 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: Ethylene oxide.
| Year | Total | Chemicals |
|---|---|---|
| 2022 | 265 lbs | 2 |
| 2023 | 208 lbs | 2 |
Chemical Releases
Aggregated across all reporting years (2022–2023). 1 of 2 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Ethylene oxide | 473 lbs | Carcinogen |
| Ethylene glycol | 0 lbs | - |
Sterigenics-Ontario Facility · AIR-pathway site
Nearest TRI Facilities to Sterigenics-Ontario Facility
Closest other reporters in California - including Armorcast Products Co, L&p Financial Services Co., New-Indy Containerboard Ontario LLC, ordered by distance.
Showing 8 of 1,148 other reporting facilities in California.
Similar Other Facilities
Other Other facilities with similar total release volumes (±80%), outside California - e.g. Palmero Health, US Air Force/scott Air Force Base, Arcosa Lws LLC Streetman Tx.
Other Sotera Health LLC Facilities
Same-parent TRI sites ranked by reported releases - including Sterigenics US LLC - Santa Teresa Facility, Sterigenics US Llc-Grand Prairie Texas Facility, Sterigenics US Llc-Queensbury Ny Facility.
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 Ethylene oxide, Ethylene glycol; nearby reporters include Armorcast Products Co. Sterigenics-Ontario Facility stamps TRACE 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 Sterigenics-Ontario Facility TRI extract (TRACE · AIR · CARC-HEAVY · lead Ethylene oxide) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Sterigenics-Ontario Facility totals are self-reported EPCRA §313 estimates for Ontario, CA, latest year 2023. Form-R rows span 2022–2023 (2 years). NAICS 561910 · Other. 0.0% of San Bernardino TRI pounds in this extract. Nearest ABS peer: Rf Holdings Inc (formerly Technical Industries Inc) (Δ 1 lbs). Pounds ≠ exposure.
Sterigenics-Ontario Facility stamps TRACE volume · AIR pathway · CARC-HEAVY · lead Ethylene oxide. 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