EPA TRI Facility · Computers and Electronic Products
Lenthor Engineering
Milpitas, CA
- Total releases
- 29.4K lbs
- Chemicals reported
- 4
- Carcinogens
- 2
- Primary pathway
- Off-site Transfers
OFFSITE Form-R mix
Lenthor Engineering: how the 29.4K lbs splits
29.4K lbs across all reported pathways
- Off-site Transfers 29.4K lbs 100.0%
- Water Discharges 0 lbs <0.1%
Lenthor Engineering's 29.4K lbs Form-R total is OFFSITE - off-site transfers is 100.0% of the bar. Next segment: water discharges at <0.1%. Leading chemical by pounds: Copper And Copper Compounds.
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-MID
Lenthor Engineering is an EPA Toxics Release Inventory reporter in Milpitas, CA, in the computers and electronic products sector. It reported 10.9K lbs of releases across 3 chemicals in 2023, and 29.4K lbs in total across its 2019-2023 reporting years. That ranks 7,360 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. Lenthor Engineering is pounds #264 and chemical-count #286 at 29.4K 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). Reported volume fell against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Headway Technologies Inc.; Analog Devices Inc; Flextronics; Winslow Automation Six Sigma. Similar-scale Computers and Electronic Products peers outside California: Polar Semiconductor LLC; Fairchild Semiconductor; Ttm Technologies N.a. LLC; La Semiconductor Llc.. Largest disclosed chemicals by pounds: Copper And Copper Compounds; Nickel; Copper compounds; Lead.
Compare Lenthor Engineering with
Nearest reporters in California
- Headway Technologies Inc. Milpitas · 34.2K lbs
- Analog Devices Inc Milpitas · 1.4K lbs
- Flextronics Milpitas · 968 lbs
- Winslow Automation Six Sigma Milpitas · 1.1K lbs
Similar-scale Computers and Electronic Products sites elsewhere: Polar Semiconductor LLC (MN) · Fairchild Semiconductor (PA) · Ttm Technologies N.a. LLC (OR)
Lenthor Engineering stamps LIGHT volume with a dominant OFFSITE pathway (100.0% off-site transfers) across 4 chemicals · 2 carcinogen-classified. Cumulative Form-R extract: 29.4K lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Polar Semiconductor LLC and Fairchild Semiconductor.
Lenthor Engineering vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
29K lbs Top 28% higher than 72% 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
Lenthor Engineering in the Computers and Electronic Products sector extract
Among the 760 Computers and Electronic Products facilities in this database, Lenthor Engineering reports the 105th-largest volume, placing it in the top 13.8% of its sector. Scale peers outside California include Polar Semiconductor LLC and Fairchild Semiconductor.
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
- Lenthor Engineering's total reported releases fell from 11.3 thousand lb in 2022 to 10.9 thousand lb in 2023, based on EPA TRI filings.
- Lenthor Engineering's off-site transfers fell from 11.3 thousand lb in 2022 to 10.9 thousand lb in 2023, based on EPA TRI filings.
Lenthor Engineering Form-R facts
Compare this facility
See how Lenthor Engineering stacks up against nearby facilities and the typical reporter.
14% less than the comparison
4.0× 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 Lenthor Engineering releases toxic chemicals into the environment. Total: 29.4K lbs.
Emissions Trend Summary
From 2019 to 2023, total releases increased by 232% (3.3K lbs to 10.9K lbs).
Lenthor Engineering: 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 Lenthor Engineering year-over-year reported totals (increased by 232% 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: Copper And Copper Compounds.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 3.3K lbs | 2 |
| 2020 | 1.8K lbs | 2 |
| 2021 | 2.1K lbs | 2 |
| 2022 | 11.3K lbs | 3 |
| 2023 | 10.9K lbs | 3 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 2 of 4 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Copper And Copper Compounds | 14.0K lbs | - |
| Nickel | 13.3K lbs | Carcinogen |
| Copper compounds | 2.1K lbs | - |
| Lead | 10 lbs | Carcinogen |
Lenthor Engineering · OFFSITE-pathway site
Nearest TRI Facilities to Lenthor Engineering
Closest other reporters in California - including Headway Technologies Inc., Analog Devices Inc, Flextronics, ordered by distance.
Showing 8 of 1,148 other reporting facilities in California.
Similar Computers and Electronic Products Facilities
Other Computers and Electronic Products facilities with similar total release volumes (±80%), outside California - e.g. Polar Semiconductor LLC, Fairchild Semiconductor, Ttm Technologies N.a. LLC.
Compare beyond California
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Lenthor Engineering on cumulative reported pounds (29.4K lbs) and distinct chemical count (4). Release-pound peers include Envases Commerce LLC, McShares Inc., Owens Corning Roofing & Asphalt LLC. Chemical-count peers include Hamilton Sundstrand de Puerto Rico Inc., Abb Installation Products Caribe LLC, Solenis 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).
- Hamilton Sundstrand de Puerto Rico Inc. Santa Isabel, PR · Transportation Equipment 4 chemicals
- Abb Installation Products Caribe LLC Vega Baja, PR · Electrical Equipment 4 chemicals
- Solenis LLC Chicopee, MA · Chemicals 4 chemicals
- Adhesive Applications Inc. - O'Neill St Easthampton Easthampton, MA · Miscellaneous Manufacturing 4 chemicals
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 Copper And Copper Compounds, Nickel, Copper compounds, Lead; nearby reporters include Headway Technologies Inc.. Lenthor Engineering stamps LIGHT volume · OFFSITE 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 Lenthor Engineering TRI extract (LIGHT · OFFSITE · CARC-MID · lead Copper And Copper Compounds) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Lenthor Engineering totals are self-reported EPCRA §313 estimates for Milpitas, CA, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 334412 · Computers and Electronic Products. 1.8% of Santa Clara TRI pounds in this extract. Nearest ABS peer: Envases Commerce LLC (Δ 3 lbs). Pounds ≠ exposure.
Lenthor Engineering stamps LIGHT volume · OFFSITE pathway · CARC-MID · lead Copper And Copper Compounds. 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