EPA TRI Facility · Computers and Electronic Products
Sumco Southwest Corp
Phoenix, AZ
- Total releases
- 408.8K lbs
- Chemicals reported
- 5
- Latest report
- 2023
- Primary pathway
- Off-site Transfers
OFFSITE Form-R mix
Sumco Southwest Corp: how the 408.8K lbs splits
408.8K lbs across all reported pathways
- Off-site Transfers 348.0K lbs 85.1%
- Air Releases 60.8K lbs 14.9%
Sumco Southwest Corp's 408.8K lbs Form-R total is OFFSITE - off-site transfers is 85.1% of the bar. Next segment: air releases at 14.9%. Leading chemical by pounds: Nitrate compounds (water dissociable; reportable only when in aqueous solution).
MID volume OFFSITE pathway CLEAN
Sumco Southwest Corp is an EPA Toxics Release Inventory reporter in Phoenix, AZ, in the computers and electronic products sector. It reported 58.3K lbs of releases across 5 chemicals in 2023, and 408.8K lbs in total across its 2019-2023 reporting years. That ranks 2,195 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Arizona's 288 reporting TRI sites, pounds #1 is not chemical-count #1. Sumco Southwest Corp is pounds #18 and chemical-count #57 at 408.8K lbs. Freeport-McMoran Miami Inc leads reported pounds (129.3M lbs) at 17 chemicals (chemical-count #10). Freeport-McMoran Morenci Inc leads chemical count at 33 chemicals (36.9M lbs, pounds #4). Reported volume fell against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Deer Valley Concrete Batch Plant #3; CEMEX-7TH Street Plant; Avonti Kitchen & Bath Inc..; Honeywell Deer Valley. Similar-scale Computers and Electronic Products peers outside Arizona: Micron Technology Inc; Analog Devices Inc. Beaverton; Seh America Inc; First Solar Inc. Largest disclosed chemicals by pounds: Nitrate compounds (water dissociable; reportable only when in aqueous solution); Certain glycol ethers; N-Methyl-2-pyrrolidone; Hydrogen fluoride.
Sumco Southwest Corp stamps MID volume with a dominant OFFSITE pathway (85.1% off-site transfers) across 5 chemicals. Cumulative Form-R extract: 408.8K lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Micron Technology Inc and Analog Devices Inc. Beaverton.
Sumco Southwest Corp vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
409K lbs Top 8% higher than 92% 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
Sumco Southwest Corp: Nitrate compounds (water dissociable; reportable only when in aqueous solution)-led volume
Among the 760 Computers and Electronic Products facilities in this database, Sumco Southwest Corp reports the 15th-largest volume, placing it in the top 2% of its sector. Its reported volume is concentrated rather than spread: Nitrate compounds (water dissociable; reportable only when in aqueous solution) alone is 84.4% of the total. Scale peers outside Arizona include Micron Technology Inc and Analog Devices Inc. Beaverton.
Concentrated means ≥60% of Sumco Southwest Corp's pounds in one chemical - here Nitrate compounds (water dissociable; reportable only when in aqueous solution) at 84.4%. Not a toxicity score.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Sumco Southwest Corp's total reported releases fell from 60.0 thousand lb in 2022 to 58.3 thousand lb in 2023, based on EPA TRI filings.
- Sumco Southwest Corp's air releases fell from 12.4 thousand lb in 2022 to 11.1 thousand lb in 2023, based on EPA TRI filings.
- Sumco Southwest Corp's off-site transfers fell from 47.6 thousand lb in 2022 to 47.1 thousand lb in 2023, based on EPA TRI filings.
Sumco Southwest Corp Form-R facts
Compare this facility
See how Sumco Southwest Corp stacks up against nearby facilities and the typical reporter.
812.3× more than the comparison
2.5× 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 Sumco Southwest Corp releases toxic chemicals into the environment. Total: 408.8K lbs.
Emissions Trend Summary
From 2019 to 2023, total releases decreased by 40% (96.7K lbs to 58.3K lbs).
Sumco Southwest Corp: annual Form-R pounds
MID site · OFFSITE pathway · TRI years 2019–2023
- 2019 0
- 2020 0
- 2021 0
- 2022 0
- 2023 0
What this shows Sumco Southwest Corp year-over-year reported totals (decreased by 40% 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: Nitrate compounds (water dissociable; reportable only when in aqueous solution).
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 96.7K lbs | 5 |
| 2020 | 93.0K lbs | 5 |
| 2021 | 100.8K lbs | 5 |
| 2022 | 60.0K lbs | 5 |
| 2023 | 58.3K lbs | 5 |
Chemical Releases
Aggregated across all reporting years (2019–2023). Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 345.2K lbs | - |
| Certain glycol ethers | 44.3K lbs | - |
| N-Methyl-2-pyrrolidone | 12.4K lbs | - |
| Hydrogen fluoride | 6.6K lbs | - |
| Nitric acid | 223 lbs | - |
Sumco Southwest Corp · OFFSITE-pathway site
Nearest TRI Facilities to Sumco Southwest Corp
Closest other reporters in Arizona - including Deer Valley Concrete Batch Plant #3, CEMEX-7TH Street Plant, Avonti Kitchen & Bath Inc.., ordered by distance.
Showing 8 of 287 other reporting facilities in Arizona.
Similar Computers and Electronic Products Facilities
Other Computers and Electronic Products facilities with similar total release volumes (±80%), outside Arizona - e.g. Micron Technology Inc, Analog Devices Inc. Beaverton, Seh America Inc.
Compare beyond Arizona
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Sumco Southwest Corp on cumulative reported pounds (408.8K lbs) and distinct chemical count (5). Release-pound peers include Martin Marietta Magnesia Specialties Woodville, Simmons Foods, Adjuvants Unlimited- #3507. 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.
- Martin Marietta Magnesia Specialties Woodville Woodville, OH · Nonmetallic Mineral Product 408.8K lbs reported
- Simmons Foods South West City, MO · Food 408.6K lbs reported
- Adjuvants Unlimited- #3507 Tulsa, OK · Chemicals 408.4K lbs reported
- American Pacific Corp Utah Operations Cedar City, UT · Chemicals 408.4K lbs reported
Similar chemical count
Nearest out-of-state reporters by distinct Form-R chemicals (deduped against the release-pound neighborhood).
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 Nitrate compounds (water dissociable; reportable only when in aqueous solution), Certain glycol ethers, N-Methyl-2-pyrrolidone, Hydrogen fluoride; nearby reporters include Deer Valley Concrete Batch Plant #3. Sumco Southwest Corp stamps MID volume · OFFSITE pathway · CLEAN 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 Sumco Southwest Corp TRI extract (MID · OFFSITE · CLEAN · lead Nitrate compounds (water dissociable; reportable only when in aqueous solution)) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Sumco Southwest Corp totals are self-reported EPCRA §313 estimates for Phoenix, AZ, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 334413 · Computers and Electronic Products. 5.2% of Maricopa TRI pounds in this extract. Nearest ABS peer: Martin Marietta Magnesia Specialties Woodville (Δ 16 lbs). Pounds ≠ exposure.
Sumco Southwest Corp stamps MID volume · OFFSITE pathway · CLEAN · lead Nitrate compounds (water dissociable; reportable only when in aqueous solution). 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