EPA TRI Facility · Metal Mining
Hycroft Mine
Winnemucca, NV · Parent: Hycroft Mining Corp
- Total releases
- 240.1K lbs
- Chemicals reported
- 13
- Carcinogens
- 2
- Primary pathway
- Land Disposal
LAND Form-R mix
Hycroft Mine: how the 240.1K lbs splits
240.1K lbs across all reported pathways
- Land Disposal 209.8K lbs 87.4%
- Off-site Transfers 25.4K lbs 10.6%
- Air Releases 4.9K lbs 2.1%
Hycroft Mine's 240.1K lbs Form-R total is LAND - land disposal is 87.4% of the bar. Next segment: off-site transfers at 10.6%. Leading chemical by pounds: Mercury 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
Hycroft Mine is an EPA Toxics Release Inventory reporter in Winnemucca, NV, in the metal mining sector. It reported 2.6K lbs of releases across 3 chemicals in 2022, and 240.1K lbs in total across its 2019-2022 reporting years. That ranks 2,937 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Nevada's 158 reporting TRI sites, pounds #1 is not chemical-count #1. Hycroft Mine is pounds #26 and chemical-count #13 at 240.1K lbs. Nevada Gold Mines LLC - Goldstrike Mines Inc leads reported pounds (930.8M lbs) at 33 chemicals (chemical-count #2). US Ecology Nevada Inc. leads chemical count at 93 chemicals (41.2M lbs, pounds #8). Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Hollister Mine; Cyanco Co LLC; Carry-On Trailer Corp; Granite Creek Mine. Similar-scale Metal Mining peers outside Nevada: Golden Queen Mining Co LLC; Hermosa; Lisbon Valley Mining Co LLC; Barrick Gold Corp-Golden Sunlight Mine. Largest disclosed chemicals by pounds: Mercury compounds; Lead compounds; Mercury And Mercury Compounds; Toluene.
Hycroft Mine stamps MID volume with a dominant LAND pathway (87.4% land disposal) across 13 chemicals · 2 carcinogen-classified. Cumulative Form-R extract: 240.1K lbs (2019–2022). 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 Hermosa.
Hycroft Mine vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
240K 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
Hycroft Mine: Mercury compounds-led volume
Among the 103 Metal Mining facilities in this database, Hycroft Mine reports the 65th-largest volume (240.1K lbs). Its reported volume is concentrated rather than spread: Mercury compounds alone is 85.9% of the total. Scale peers outside Nevada include Golden Queen Mining Co LLC and Hermosa.
Concentrated means ≥60% of Hycroft Mine's pounds in one chemical - here Mercury compounds at 85.9%. Not a toxicity score.
Hycroft Mine Form-R facts
Compare this facility
See how Hycroft Mine stacks up against nearby facilities and the typical reporter.
228.1× more than the comparison
4.3× 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 Hycroft Mine releases toxic chemicals into the environment. Total: 240.1K lbs.
Emissions Trend Summary
From 2019 to 2022, total releases decreased by 92% (31.7K lbs to 2.6K lbs).
Hycroft Mine: annual Form-R pounds
MID site · LAND pathway · TRI years 2019–2022
- 2019 0
- 2020 0
- 2021 0
- 2022 0
What this shows Hycroft Mine year-over-year reported totals (decreased by 92% from 2019 to 2022). 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: Mercury compounds.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 31.7K lbs | 7 |
| 2020 | 101.0K lbs | 10 |
| 2021 | 104.8K lbs | 11 |
| 2022 | 2.6K lbs | 3 |
Chemical Releases
Aggregated across all reporting years (2019–2022). 2 of 13 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Mercury compounds | 206.3K lbs | - |
| Lead compounds | 22.1K lbs | - |
| Mercury And Mercury Compounds | 8.8K lbs | - |
| Toluene | 1.7K lbs | - |
| Cyanide compounds | 860 lbs | - |
| Xylene (mixed isomers) | 390 lbs | - |
| Selenium compounds | 40 lbs | - |
| Zinc compounds | 7 lbs | - |
| Manganese compounds | 6 lbs | - |
| Nickel compounds | 2 lbs | Carcinogen |
| Silver compounds | 1 lbs | - |
| Zinc (fume or dust) | 0 lbs | - |
| Cobalt compounds | 0 lbs | Carcinogen |
Hycroft Mine · LAND-pathway site
Nearest TRI Facilities to Hycroft Mine
Closest other reporters in Nevada - including Hollister Mine, Cyanco Co LLC, Carry-On Trailer Corp, ordered by distance.
Showing 8 of 157 other reporting facilities in Nevada.
Similar Metal Mining Facilities
Other Metal Mining facilities with similar total release volumes (±80%), outside Nevada - e.g. Golden Queen Mining Co LLC, Hermosa, Lisbon Valley Mining Co LLC.
Compare beyond Nevada
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Hycroft Mine on cumulative reported pounds (240.1K lbs) and distinct chemical count (13). Release-pound peers include Victaulic Co - Forks Facility, Sonoco Metal Packaging LLC, Autoliv Asp Inc Promontory. Chemical-count peers include Puerto Rico Energy LLC - Guaynabo 2 Terminal, Global Companies LLC, Shell Providence Terminal. 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.
- Victaulic Co - Forks Facility Easton, PA · Primary Metals 240.0K lbs reported
- Sonoco Metal Packaging LLC Dandridge, TN · Fabricated Metals 240.4K lbs reported
- Autoliv Asp Inc Promontory Corinne, UT · Transportation Equipment 240.5K lbs reported
- Roseburg Forest Products Co. - Riddle Plywood #4 Riddle, OR · Wood Products 240.6K lbs reported
Similar chemical count
Nearest out-of-state reporters by distinct Form-R chemicals (deduped against the release-pound neighborhood).
- Puerto Rico Energy LLC - Guaynabo 2 Terminal Guaynabo, PR · Petroleum Bulk Terminals 13 chemicals
- Global Companies LLC Revere, MA · Petroleum Bulk Terminals 13 chemicals
- Shell Providence Terminal Providence, RI · Petroleum Bulk Terminals 13 chemicals
- Sig Sauer Inc Newington, NH · Fabricated Metals 13 chemicals
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 Mercury compounds, Lead compounds, Mercury And Mercury Compounds, Toluene; nearby reporters include Hollister Mine. Hycroft Mine 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 Hycroft Mine TRI extract (MID · LAND · TRACE-CARC · lead Mercury compounds) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Hycroft Mine totals are self-reported EPCRA §313 estimates for Winnemucca, NV, latest year 2022. Form-R rows span 2019–2022 (4 years). NAICS 212221 · Metal Mining. 0.1% of Humboldt TRI pounds in this extract. Nearest ABS peer: Victaulic Co - Forks Facility (Δ 132 lbs). Pounds ≠ exposure.
Hycroft Mine stamps MID volume · LAND pathway · TRACE-CARC · lead Mercury 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