EPA TRI Facility · Fabricated Metals
Diamond Manufacturing Co
Wyoming, PA · Parent: Reliance Steel & Aluminum Co
- Total releases
- 100 lbs
- Chemicals reported
- 4
- Carcinogens
- 1
- Primary pathway
- Air Releases
AIR Form-R mix
Diamond Manufacturing Co: how the 120 lbs splits
120 lbs across all reported pathways
- Air Releases 120 lbs 100.0%
Diamond Manufacturing Co's 120 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: Chromium.
TRACE volume AIR pathway CARC-MID
Diamond Manufacturing Co is an EPA Toxics Release Inventory reporter in Wyoming, PA, in the fabricated metals sector. It reported 20 lbs of releases across 4 chemicals in 2024, and 100 lbs in total across its 2019-2024 reporting years. That ranks 16,547 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Pennsylvania's 1,010 reporting TRI sites, pounds #1 is not chemical-count #1. Diamond Manufacturing Co is pounds #814 and chemical-count #409 at 100 lbs. Max Environmental -- Yukon Facility leads reported pounds (34.8M lbs) at 18 chemicals (chemical-count #24). Keystone Cement Co leads chemical count at 53 chemicals (155.4K lbs, pounds #149). Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Acton Technologies Inc; General Dynamics Ots (wilkes-Barre) LLC; Intermetro Industries Corp; Ball Metal Beverage Container Corp. Similar-scale Fabricated Metals peers outside Pennsylvania: Relco Locomotives Inc.; Cvco LLC DBA Cashco & Valve Concepts; Enerfab Process Solutions; Lochinvar LLC. Other Reliance Steel & Aluminum Co sites in this extract: Dubose National Energy Services Inc.; Diamond Midwest. Largest disclosed chemicals by pounds: Chromium; Nickel; Copper; Manganese.
Diamond Manufacturing Co stamps TRACE volume with a dominant AIR pathway (100.0% air releases) across 4 chemicals · 1 carcinogen-classified. Cumulative Form-R extract: 100 lbs (2019–2024). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Relco Locomotives Inc. and Cvco LLC DBA Cashco & Valve Concepts.
Diamond Manufacturing Co vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
100 lbs 36th percentile higher than 36% 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
Diamond Manufacturing Co in the Fabricated Metals sector extract
Among the 3,421 Fabricated Metals facilities in this database, Diamond Manufacturing Co reports the 2,175th-largest volume (100 lbs). Scale peers outside Pennsylvania include Relco Locomotives Inc. and Cvco LLC DBA Cashco & Valve Concepts.
Sector rank uses reported TRI pounds only. Share callouts need ≥1,000 lbs so tiny totals cannot mint a false signal.
Diamond Manufacturing Co Form-R facts
Compare this facility
See how Diamond Manufacturing Co stacks up against nearby facilities and the typical reporter.
90% less than the comparison
33% 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 Diamond Manufacturing Co releases toxic chemicals into the environment. Total: 120 lbs.
Emissions Trend Summary
From 2019 to 2024, total releases held roughly flat (20 lbs to 20 lbs).
Diamond Manufacturing Co: annual Form-R pounds
TRACE site · AIR pathway · TRI years 2019–2024
- 2019 0
- 2020 0
- 2021 0
- 2022 0
- 2023 0
- 2024 0
What this shows Diamond Manufacturing Co year-over-year reported totals (held roughly flat from 2019 to 2024). 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: Chromium.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 20 lbs | 4 |
| 2020 | 20 lbs | 4 |
| 2021 | 20 lbs | 4 |
| 2022 | 20 lbs | 4 |
| 2023 | 20 lbs | 4 |
| 2024 | 20 lbs | 4 |
Diamond Manufacturing Co · AIR-pathway site
Nearest TRI Facilities to Diamond Manufacturing Co
Closest other reporters in Pennsylvania - including Acton Technologies Inc, General Dynamics Ots (wilkes-Barre) LLC, Intermetro Industries Corp, ordered by distance.
Showing 8 of 1,009 other reporting facilities in Pennsylvania.
Similar Fabricated Metals Facilities
Other Fabricated Metals facilities with similar total release volumes (±80%), outside Pennsylvania - e.g. Relco Locomotives Inc., Cvco LLC DBA Cashco & Valve Concepts, Enerfab Process Solutions.
Other Reliance Steel & Aluminum Co Facilities
Same-parent TRI sites ranked by reported releases - including Dubose National Energy Services Inc., Diamond Midwest.
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 Chromium, Nickel, Copper, Manganese; nearby reporters include Acton Technologies Inc. Diamond Manufacturing Co 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 Diamond Manufacturing Co TRI extract (TRACE · AIR · CARC-MID · lead Chromium) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Diamond Manufacturing Co totals are self-reported EPCRA §313 estimates for Wyoming, PA, latest year 2023. Form-R rows span 2019–2024 (6 years). NAICS 332119 · Fabricated Metals. 0.0% of Luzerne TRI pounds in this extract. Nearest ABS peer: Brenner Tank LLC (Δ 0 lbs). Pounds ≠ exposure.
Diamond Manufacturing Co stamps TRACE volume · AIR pathway · CARC-MID · lead Chromium. 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