EPA TRI Facility · Primary Metals
Gerdau Macsteel Monroe
Monroe, MI · Parent: Gerdau Macsteel Inc
- Total releases
- 501.9K lbs
- Chemicals reported
- 15
- Carcinogens
- 2
- Primary pathway
- Off-site Transfers
OFFSITE Form-R mix
Gerdau Macsteel Monroe: how the 501.9K lbs splits
501.9K lbs across all reported pathways
- Off-site Transfers 453.1K lbs 90.3%
- Air Releases 47.9K lbs 9.5%
- Water Discharges 911 lbs 0.2%
- Land Disposal 0 lbs <0.1%
Gerdau Macsteel Monroe's 501.9K lbs Form-R total is OFFSITE - off-site transfers is 90.3% of the bar. Next segment: air releases at 9.5%. Leading chemical by pounds: Zinc 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.
MID volume OFFSITE pathway TRACE-CARC
Gerdau Macsteel Monroe is an EPA Toxics Release Inventory reporter in Monroe, MI, in the primary metals sector. It reported 113.6K lbs of releases across 10 chemicals in 2023, and 501.9K lbs in total across its 2019-2023 reporting years. That ranks 1,951 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Michigan's 791 reporting TRI sites, pounds #1 is not chemical-count #1. Gerdau Macsteel Monroe is pounds #65 and chemical-count #40 at 501.9K lbs. Cleveland-Cliffs Steel Corp Dearborn Works leads reported pounds (53.0M lbs) at 17 chemicals (chemical-count #27). Eq Detroit Inc leads chemical count at 71 chemicals (14.0M lbs, pounds #5). Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Michigan Paving & Materials Co - Monroe; Ventower Industries LLC; Dte Electric Co - Monroe Power Plant; National Galvanizing LP. Similar-scale Primary Metals peers outside Michigan: Waupaca Foundry - Plant 4; Cleveland-Cliffs Plate LLC Coatesville Facility; Cmc Steel Sc; Advanced Cast Products Inc. Other Gerdau Macsteel Inc sites in this extract: Gerdau-Fort Smith Mill; Gerdau Special Steel Na. Largest disclosed chemicals by pounds: Zinc compounds; Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region); Chromium compounds (except for chromite ore mined in the Transvaal Region); Copper And Copper Compounds.
Gerdau Macsteel Monroe stamps MID volume with a dominant OFFSITE pathway (90.3% off-site transfers) across 15 chemicals · 2 carcinogen-classified. Cumulative Form-R extract: 501.9K lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Waupaca Foundry - Plant 4 and Cleveland-Cliffs Plate LLC Coatesville Facility.
Gerdau Macsteel Monroe vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
502K 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
Gerdau Macsteel Monroe in the Primary Metals sector extract
Among the 1,603 Primary Metals facilities in this database, Gerdau Macsteel Monroe reports the 213th-largest volume, placing it in the top 13.3% of its sector. Scale peers outside Michigan include Waupaca Foundry - Plant 4 and Cleveland-Cliffs Plate LLC Coatesville Facility.
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
- Gerdau Macsteel Monroe's air releases rose from 8.2 thousand lb in 2022 to 12.4 thousand lb in 2023, based on EPA TRI filings.
- Gerdau Macsteel Monroe's water releases rose from 143 lb in 2022 to 206 lb in 2023, based on EPA TRI filings.
- Gerdau Macsteel Monroe's off-site transfers fell from 104.8 thousand lb in 2022 to 101.0 thousand lb in 2023, based on EPA TRI filings.
Gerdau Macsteel Monroe Form-R facts
Compare this facility
See how Gerdau Macsteel Monroe stacks up against nearby facilities and the typical reporter.
163806371.7× more than the comparison
7.5× 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 Gerdau Macsteel Monroe releases toxic chemicals into the environment. Total: 501.9K lbs.
Emissions Trend Summary
From 2019 to 2023, total releases increased by 3% (110.7K lbs to 113.6K lbs).
Gerdau Macsteel Monroe: 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 Gerdau Macsteel Monroe year-over-year reported totals (increased by 3% 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: Zinc compounds.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 110.7K lbs | 10 |
| 2020 | 67.6K lbs | 10 |
| 2021 | 97.0K lbs | 10 |
| 2022 | 113.1K lbs | 10 |
| 2023 | 113.6K lbs | 10 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 2 of 15 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Zinc compounds | 295.8K lbs | - |
| Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region) | 77.0K lbs | - |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 48.3K lbs | - |
| Copper And Copper Compounds | 33.0K lbs | - |
| Manganese And Manganese Compounds | 13.6K lbs | - |
| Copper compounds | 11.0K lbs | - |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 7.8K lbs | - |
| Barium And Barium Compounds | 7.3K lbs | - |
| Lead And Lead Compounds | 5.7K lbs | - |
| Lead compounds | 2.2K lbs | - |
| Vanadium compounds | 160 lbs | - |
| Nickel And Nickel Compounds | 90 lbs | Carcinogen |
| Mercury And Mercury Compounds | 4 lbs | - |
| Mercury compounds | 2 lbs | - |
| Dioxin and dioxin-like compounds | 0 lbs | Carcinogen |
Gerdau Macsteel Monroe · OFFSITE-pathway site
Nearest TRI Facilities to Gerdau Macsteel Monroe
Closest other reporters in Michigan - including Michigan Paving & Materials Co - Monroe, Ventower Industries LLC, Dte Electric Co - Monroe Power Plant, ordered by distance.
Showing 8 of 790 other reporting facilities in Michigan.
Similar Primary Metals Facilities
Other Primary Metals facilities with similar total release volumes (±80%), outside Michigan - e.g. Waupaca Foundry - Plant 4, Cleveland-Cliffs Plate LLC Coatesville Facility, Cmc Steel Sc.
Compare beyond Michigan
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Gerdau Macsteel Monroe on cumulative reported pounds (501.9K lbs) and distinct chemical count (15). Release-pound peers include Georgia-Pacific Port Hudson LLC, Mallinckrodt Pharmaceuticals, Midamerican Energy-George Neal South. Chemical-count peers include Port Hamilton Refining & Transportation Lllp, Clean Harbors of Connecticut Inc, Infineum USA Lp-Bayway Chemical Plant. 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).
- Port Hamilton Refining & Transportation Lllp Christiansted, VI · Petroleum 15 chemicals
- Clean Harbors of Connecticut Inc Bristol, CT · Hazardous Waste 15 chemicals
- Infineum USA Lp-Bayway Chemical Plant Linden, NJ · Chemicals 15 chemicals
- Global Cos LLC Albany Terminal Albany, NY · Petroleum Bulk Terminals 15 chemicals
Other Gerdau Macsteel Inc Facilities
Same-parent TRI sites ranked by reported releases - including Gerdau-Fort Smith Mill, Gerdau Special Steel Na.
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 Zinc compounds, Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region), Chromium compounds (except for chromite ore mined in the Transvaal Region), Copper And Copper Compounds; nearby reporters include Michigan Paving & Materials Co - Monroe. Gerdau Macsteel Monroe stamps MID volume · OFFSITE pathway · TRACE-CARC 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 Gerdau Macsteel Monroe TRI extract (MID · OFFSITE · TRACE-CARC · lead Zinc compounds) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Gerdau Macsteel Monroe totals are self-reported EPCRA §313 estimates for Monroe, MI, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 331110 · Primary Metals. 2.4% of Monroe TRI pounds in this extract. Nearest ABS peer: Georgia-Pacific Port Hudson LLC (Δ 70 lbs). Pounds ≠ exposure.
Gerdau Macsteel Monroe stamps MID volume · OFFSITE pathway · TRACE-CARC · lead Zinc 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