EPA TRI Facility · Fabricated Metals
Sumco LLC
Indianapolis, IN
- Total releases
- 3.7K lbs
- Chemicals reported
- 7
- Carcinogens
- 2
- Primary pathway
- Off-site Transfers
OFFSITE Form-R mix
Sumco LLC: how the 3.7K lbs splits
3.7K lbs across all reported pathways
- Off-site Transfers 3.7K lbs 100.0%
- Air Releases 1 lbs <0.1%
Sumco LLC's 3.7K lbs Form-R total is OFFSITE - off-site transfers is 100.0% of the bar. Next segment: air releases at <0.1%. Leading chemical by pounds: 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
Sumco LLC is an EPA Toxics Release Inventory reporter in Indianapolis, IN, in the fabricated metals sector. It reported 600 lbs of releases across 4 chemicals in 2023, and 3.7K lbs in total across its 2019-2023 reporting years. That ranks 11,720 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Indiana's 871 reporting TRI sites, pounds #1 is not chemical-count #1. Sumco LLC is pounds #520 and chemical-count #143 at 3.7K lbs. Uss Gary Works leads reported pounds (77.4M lbs) at 36 chemicals (chemical-count #9). Tradebe Treatment & Recycling LLC leads chemical count at 98 chemicals (11.9M lbs, pounds #12). Reported volume rose against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Carrier Corp - Indianapolis; Micronutrients USA LLC; Ecobat Resources Indiana LLC; Heritage Environmental Services LLC. Similar-scale Fabricated Metals peers outside Indiana: Simpson Strong Tie; King Fabrication LLC; Silvex Inc; Allegheny Coatings. Largest disclosed chemicals by pounds: Copper compounds; Nickel compounds; Nickel And Nickel Compounds; Copper And Copper Compounds.
Sumco LLC stamps LIGHT volume with a dominant OFFSITE pathway (100.0% off-site transfers) across 7 chemicals · 2 carcinogen-classified. Cumulative Form-R extract: 3.7K lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Simpson Strong Tie and King Fabrication LLC.
Sumco LLC vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
3.7K lbs Top 45% higher than 55% 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 LLC: Copper compounds-led volume
Among the 3,421 Fabricated Metals facilities in this database, Sumco LLC reports the 1,434th-largest volume (3.7K lbs). Its reported volume is concentrated rather than spread: Copper compounds alone is 60.6% of the total. Scale peers outside Indiana include Simpson Strong Tie and King Fabrication LLC.
Concentrated means ≥60% of Sumco LLC's pounds in one chemical - here Copper compounds at 60.6%. Not a toxicity score.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Sumco LLC's total reported releases rose from 303 lb in 2022 to 600 lb in 2023, based on EPA TRI filings.
- Sumco LLC's off-site transfers rose from 303 lb in 2022 to 600 lb in 2023, based on EPA TRI filings.
Sumco LLC Form-R facts
Compare this facility
See how Sumco LLC stacks up against nearby facilities and the typical reporter.
45.0× more than the comparison
75% 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 LLC releases toxic chemicals into the environment. Total: 3.7K lbs.
Emissions Trend Summary
From 2019 to 2023, total releases decreased by 65% (1.7K lbs to 600 lbs).
Sumco LLC: 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 Sumco LLC year-over-year reported totals (decreased by 65% 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 compounds.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 1.7K lbs | 4 |
| 2020 | 512 lbs | 4 |
| 2021 | 576 lbs | 4 |
| 2022 | 303 lbs | 4 |
| 2023 | 600 lbs | 4 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 2 of 7 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Copper compounds | 2.3K lbs | - |
| Nickel compounds | 666 lbs | Carcinogen |
| Nickel And Nickel Compounds | 361 lbs | Carcinogen |
| Copper And Copper Compounds | 321 lbs | - |
| Cyanide compounds | 73 lbs | - |
| Lead compounds | 40 lbs | - |
| Lead And Lead Compounds | 8 lbs | - |
Sumco LLC · OFFSITE-pathway site
Nearest TRI Facilities to Sumco LLC
Closest other reporters in Indiana - including Carrier Corp - Indianapolis, Micronutrients USA LLC, Ecobat Resources Indiana LLC, ordered by distance.
Showing 8 of 870 other reporting facilities in Indiana.
Similar Fabricated Metals Facilities
Other Fabricated Metals facilities with similar total release volumes (±80%), outside Indiana - e.g. Simpson Strong Tie, King Fabrication LLC, Silvex Inc.
Compare beyond Indiana
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Sumco LLC on cumulative reported pounds (3.7K lbs) and distinct chemical count (7). Release-pound peers include Cambridge Isotope Laboratories Inc, Hydrite Chemical Co., Tallgrass Midstream LLC - Casper Gas Plant & Compressor Stat. Chemical-count peers include Hubbell Caribe Ltd, Celanese Microcircuits Industries Ltd., Virgin Islands Water & Power Authority. 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.
- Cambridge Isotope Laboratories Inc Andover, MA · Chemicals 3.7K lbs reported
- Hydrite Chemical Co. Lubbock, TX · Chemical Wholesalers 3.7K lbs reported
- Tallgrass Midstream LLC - Casper Gas Plant & Compressor Stat Casper, WY · Natural Gas Processing 3.7K lbs reported
- Yanfeng Automotive Interiors Pmsc & Cw Southview Holland, MI · Transportation Equipment 3.7K 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 Copper compounds, Nickel compounds, Nickel And Nickel Compounds, Copper And Copper Compounds; nearby reporters include Carrier Corp - Indianapolis. Sumco LLC 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 Sumco LLC TRI extract (LIGHT · OFFSITE · CARC-MID · lead Copper compounds) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Sumco LLC totals are self-reported EPCRA §313 estimates for Indianapolis, IN, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 332813 · Fabricated Metals. 0.0% of Marion TRI pounds in this extract. Nearest ABS peer: Cambridge Isotope Laboratories Inc (Δ 0 lbs). Pounds ≠ exposure.
Sumco LLC stamps LIGHT volume · OFFSITE pathway · CARC-MID · lead 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