EPA TRI Facility · Metal Mining
Goldcorp Dee LLC - Lone Tree Mine
Valmy, NV · Parent: Premier Gold Mines USA Inc.
- Total releases
- 12.8K lbs
- Chemicals reported
- 6
- Latest report
- 2023
- Primary pathway
- Air Releases
AIR Form-R mix
Goldcorp Dee LLC - Lone Tree Mine: how the 12.8K lbs splits
12.8K lbs across all reported pathways
- Air Releases 10.5K lbs 81.8%
- Land Disposal 2.3K lbs 18.2%
Goldcorp Dee LLC - Lone Tree Mine's 12.8K lbs Form-R total is AIR - air releases is 81.8% of the bar. Next segment: land disposal at 18.2%. Leading chemical by pounds: Cyanide compounds.
LIGHT volume AIR pathway CLEAN
Goldcorp Dee LLC - Lone Tree Mine is an EPA Toxics Release Inventory reporter in Valmy, NV, in the metal mining sector. It reported 162 lbs of releases across 5 chemicals in 2023, and 12.8K lbs in total across its 2019-2023 reporting years. That ranks 9,270 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. Goldcorp Dee LLC - Lone Tree Mine is pounds #52 and chemical-count #43 at 12.8K 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). Reported volume fell against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Marigold Mining Co; Sierra Pacific Power Co North Valmy Station; Nevada Gold Mines LLC - Turquoise Ridge; Midas Project. Similar-scale Metal Mining peers outside Nevada: Chemours - Jesup Mine; Mission Mine; Tintic Consolidated Metals LLC; Kettle River Operations Mill. Other Premier Gold Mines USA Inc. sites in this extract: Granite Creek Mine. Largest disclosed chemicals by pounds: Cyanide compounds; Manganese compounds; Ammonia; Nitrate compounds (water dissociable; reportable only when in aqueous solution).
Goldcorp Dee LLC - Lone Tree Mine stamps LIGHT volume with a dominant AIR pathway (81.8% air releases) across 6 chemicals. Cumulative Form-R extract: 12.8K lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Chemours - Jesup Mine and Mission Mine.
Goldcorp Dee LLC - Lone Tree Mine vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
13K lbs Top 36% higher than 64% 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
Goldcorp Dee LLC - Lone Tree Mine: Cyanide compounds-led volume
Among the 103 Metal Mining facilities in this database, Goldcorp Dee LLC - Lone Tree Mine reports the 82nd-largest volume (12.8K lbs). Its reported volume is concentrated rather than spread: Cyanide compounds alone is 80.9% of the total. Scale peers outside Nevada include Chemours - Jesup Mine and Mission Mine.
Concentrated means ≥60% of Goldcorp Dee LLC - Lone Tree Mine's pounds in one chemical - here Cyanide compounds at 80.9%. Not a toxicity score.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Goldcorp Dee LLC - Lone Tree Mine's total reported releases fell from 1.7 thousand lb in 2022 to 162 lb in 2023, based on EPA TRI filings.
- Goldcorp Dee LLC - Lone Tree Mine's air releases fell from 107 lb in 2022 to 1 lb in 2023, based on EPA TRI filings.
- Goldcorp Dee LLC - Lone Tree Mine's land releases fell from 1.6 thousand lb in 2022 to 161 lb in 2023, based on EPA TRI filings.
- Goldcorp Dee LLC - Lone Tree Mine's chemicals reported fell from 6 in 2022 to 5 in 2023, based on EPA TRI filings.
Goldcorp Dee LLC - Lone Tree Mine Form-R facts
Compare this facility
See how Goldcorp Dee LLC - Lone Tree Mine stacks up against nearby facilities and the typical reporter.
100% less than the comparison
14% less 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 Goldcorp Dee LLC - Lone Tree Mine releases toxic chemicals into the environment. Total: 12.8K lbs.
Emissions Trend Summary
From 2019 to 2023, total releases decreased by 97% (6.3K lbs to 162 lbs).
Goldcorp Dee LLC - Lone Tree Mine: annual Form-R pounds
LIGHT site · AIR pathway · TRI years 2019–2023
- 2019 0
- 2020 0
- 2021 0
- 2022 0
- 2023 0
What this shows Goldcorp Dee LLC - Lone Tree Mine year-over-year reported totals (decreased by 97% 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: Cyanide compounds.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 6.3K lbs | 5 |
| 2020 | 4.6K lbs | 5 |
| 2021 | 67 lbs | 3 |
| 2022 | 1.7K lbs | 6 |
| 2023 | 162 lbs | 5 |
Chemical Releases
Aggregated across all reporting years (2019–2023). Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Cyanide compounds | 10.4K lbs | - |
| Manganese compounds | 2.2K lbs | - |
| Ammonia | 107 lbs | - |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 67 lbs | - |
| Copper compounds | 29 lbs | - |
| Mercury compounds | 1 lbs | - |
Goldcorp Dee LLC - Lone Tree Mine · AIR-pathway site
Nearest TRI Facilities to Goldcorp Dee LLC - Lone Tree Mine
Closest other reporters in Nevada - including Marigold Mining Co, Sierra Pacific Power Co North Valmy Station, Nevada Gold Mines LLC - Turquoise Ridge, 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. Chemours - Jesup Mine, Mission Mine, Tintic Consolidated Metals LLC.
Compare beyond Nevada
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Goldcorp Dee LLC - Lone Tree Mine on cumulative reported pounds (12.8K lbs) and distinct chemical count (6). Release-pound peers include Colonial Chemical Solutions Inc., Marva Maid Dairy, Vulcan Global Manufacturing Solutions Inc. Chemical-count peers include Eaton Intelligent Power Ltd, Leoni Wire Inc, Turf Care Supply-Hatfield 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.
- Colonial Chemical Solutions Inc. Savannah, GA · Chemical Wholesalers 12.8K lbs reported
- Marva Maid Dairy Newport News, VA · Food 12.8K lbs reported
- Vulcan Global Manufacturing Solutions Inc Milwaukee, WI · Primary Metals 12.8K lbs reported
- Chicago Anodizing Co Chicago, IL · Fabricated Metals 12.8K lbs reported
Similar chemical count
Nearest out-of-state reporters by distinct Form-R chemicals (deduped against the release-pound neighborhood).
Other Premier Gold Mines USA Inc. Facilities
Same-parent TRI sites ranked by reported releases - including Granite Creek Mine.
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 Cyanide compounds, Manganese compounds, Ammonia, Nitrate compounds (water dissociable; reportable only when in aqueous solution); nearby reporters include Marigold Mining Co. Goldcorp Dee LLC - Lone Tree Mine stamps LIGHT volume · AIR pathway · CLEAN 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 Goldcorp Dee LLC - Lone Tree Mine TRI extract (LIGHT · AIR · CLEAN · lead Cyanide compounds) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Goldcorp Dee LLC - Lone Tree Mine totals are self-reported EPCRA §313 estimates for Valmy, NV, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 212221 · Metal Mining. 0.0% of Humboldt TRI pounds in this extract. Nearest ABS peer: Colonial Chemical Solutions Inc. (Δ 2 lbs). Pounds ≠ exposure.
Goldcorp Dee LLC - Lone Tree Mine stamps LIGHT volume · AIR pathway · CLEAN · lead Cyanide 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