EPA TRI Facility · Metal Mining
Hermosa
Patagonia, AZ
- Total releases
- 252.8K lbs
- Chemicals reported
- 7
- Carcinogens
- 1
- Primary pathway
- Land Disposal
LAND Form-R mix
Hermosa: how the 252.8K lbs splits
252.8K lbs across all reported pathways
- Land Disposal 248.8K lbs 98.4%
- Off-site Transfers 3.2K lbs 1.3%
- Water Discharges 752 lbs 0.3%
- Air Releases 10 lbs <0.1%
Hermosa's 252.8K lbs Form-R total is LAND - land disposal is 98.4% of the bar. Next segment: off-site transfers at 1.3%. Leading chemical by pounds: Manganese 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 LAND pathway TRACE-CARC
Hermosa is an EPA Toxics Release Inventory reporter in Patagonia, AZ, in the metal mining sector. It reported 87.6K lbs of releases across 4 chemicals in 2023, and 252.8K lbs in total across its 2019-2023 reporting years. That ranks 2,855 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. Hermosa is pounds #26 and chemical-count #47 at 252.8K 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 rose against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: US Cbp Nogales Border Patrol Station & Range #AZ0047; U.s.dod US Army Fort Huachuca - Ranges; Freeport-McMoran Sierrita Inc; Apache Nitrogen Products Inc. Similar-scale Metal Mining peers outside Arizona: Golden Queen Mining Co LLC; Hycroft Mine; Lisbon Valley Mining Co LLC; Barrick Gold Corp-Golden Sunlight Mine. Largest disclosed chemicals by pounds: Manganese compounds; Lead compounds; Zinc compounds; Lead And Lead Compounds.
Hermosa stamps MID volume with a dominant LAND pathway (98.4% land disposal) across 7 chemicals · 1 carcinogen-classified. Cumulative Form-R extract: 252.8K lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Golden Queen Mining Co LLC and Hycroft Mine.
Hermosa vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
253K lbs Top 11% higher than 89% 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
Hermosa inside Santa Cruz's TRI pounds
Among the 103 Metal Mining facilities in this database, Hermosa reports the 63rd-largest volume (252.8K lbs). This one site accounts for 97.4% of every pound reported in Santa Cruz. Scale peers outside Arizona include Golden Queen Mining Co LLC and Hycroft Mine.
County-dominant here means ≥25% of Santa Cruz's reported pounds (259.4K lbs county total). Shares only print when the site reports ≥1,000 lbs.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Hermosa's total reported releases rose from 69.3 thousand lb in 2022 to 87.6 thousand lb in 2023, based on EPA TRI filings.
- Hermosa's off-site transfers rose from 0 lb in 2022 to 3.2 thousand lb in 2023, based on EPA TRI filings.
- Hermosa's water releases rose from 0 lb in 2022 to 752 lb in 2023, based on EPA TRI filings.
- Hermosa's chemicals reported rose from 1 in 2022 to 4 in 2023, based on EPA TRI filings.
Hermosa Form-R facts
Compare this facility
See how Hermosa stacks up against nearby facilities and the typical reporter.
38.0× more than the comparison
7.0× 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 Hermosa releases toxic chemicals into the environment. Total: 252.8K lbs.
Emissions Trend Summary
From 2019 to 2023, total releases decreased by 9% (95.8K lbs to 87.6K lbs).
Hermosa: annual Form-R pounds
MID site · LAND pathway · TRI years 2019–2023
- 2019 0
- 2020 0
- 2022 0
- 2023 0
What this shows Hermosa year-over-year reported totals (decreased by 9% 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: Manganese compounds.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 95.8K lbs | 3 |
| 2020 | 0 lbs | 1 |
| 2022 | 69.3K lbs | 1 |
| 2023 | 87.6K lbs | 4 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 1 of 7 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Manganese compounds | 143.3K lbs | - |
| Lead compounds | 95.7K lbs | - |
| Zinc compounds | 11.3K lbs | - |
| Lead And Lead Compounds | 1.3K lbs | - |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 1.0K lbs | - |
| Mercury compounds | 93 lbs | - |
| Naphthalene | 2 lbs | Carcinogen |
Hermosa · LAND-pathway site
Nearest TRI Facilities to Hermosa
Closest other reporters in Arizona - including US Cbp Nogales Border Patrol Station & Range #AZ0047, U.s.dod US Army Fort Huachuca - Ranges, Freeport-McMoran Sierrita Inc, ordered by distance.
Showing 8 of 287 other reporting facilities in Arizona.
Similar Metal Mining Facilities
Other Metal Mining facilities with similar total release volumes (±80%), outside Arizona - e.g. Golden Queen Mining Co LLC, Hycroft Mine, Lisbon Valley Mining Co LLC.
Compare beyond Arizona
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Hermosa on cumulative reported pounds (252.8K lbs) and distinct chemical count (7). Release-pound peers include A-1 Fiberglass, Contitech USA LLC, Parker Hannifin Corp. 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.
- A-1 Fiberglass Hastings, NE · Plastics and Rubber 252.7K lbs reported
- Contitech USA LLC Marysville, OH · Plastics and Rubber 252.6K lbs reported
- Parker Hannifin Corp Nacogdoches, TX · Miscellaneous Manufacturing 252.5K lbs reported
- Atmel Corp Colorado Springs, CO · Computers and Electronic Products 252.4K 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 Manganese compounds, Lead compounds, Zinc compounds, Lead And Lead Compounds; nearby reporters include US Cbp Nogales Border Patrol Station & Range #AZ0047. Hermosa stamps MID volume · LAND 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 Hermosa TRI extract (MID · LAND · TRACE-CARC · lead Manganese compounds) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Hermosa totals are self-reported EPCRA §313 estimates for Patagonia, AZ, latest year 2023. Form-R rows span 2019–2023 (4 years). NAICS 212230 · Metal Mining. 97.4% of Santa Cruz TRI pounds in this extract. Nearest ABS peer: A-1 Fiberglass (Δ 16 lbs). Pounds ≠ exposure.
Hermosa stamps MID volume · LAND pathway · TRACE-CARC · lead Manganese 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