EPA TRI Facility · Metal Mining
Montana Resources LLC
Butte, MT
- Total releases
- 215.2M lbs
- Chemicals reported
- 12
- Carcinogens
- 4
- Primary pathway
- Land Disposal
LAND Form-R mix
Montana Resources LLC: how the 215.2M lbs splits
215.2M lbs across all reported pathways
- Land Disposal 215.2M lbs 100.0%
- Air Releases 1.7K lbs <0.1%
- Off-site Transfers 69 lbs <0.1%
Montana Resources LLC's 215.2M lbs Form-R total is LAND - land disposal is 100.0% of the bar. Next segment: air releases at <0.1%. Leading chemical by pounds: Copper And Copper 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.
DENSE volume LAND pathway CARC-LEAN
Montana Resources LLC is an EPA Toxics Release Inventory reporter in Butte, MT, in the metal mining sector. It reported 40.1M lbs of releases across 12 chemicals in 2023, and 215.2M lbs in total across its 2019-2023 reporting years. That ranks 6 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Montana's 67 reporting TRI sites, pounds #1 is not chemical-count #1. Montana Resources LLC leads reported pounds (215.2M lbs) at 12 chemicals (chemical-count #11). Phillips 66 Co Billings Refinery leads chemical count at 39 chemicals (465.0K lbs, pounds #16). Reported volume fell against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Solvay USA LLC Silver Bow Plant; Montana Precision Products LLC; Rec Silicon; Helena Sand & Gravel DBA Montana Materials & Const. Similar-scale Metal Mining peers outside Montana: Nevada Gold Mines LLC - Carlin South Area; Nevada Gold Mines LLC - Turquoise Ridge; Nevada Gold Mines Llc-Cortez District; Robinson Nevada Mining Co. Largest disclosed chemicals by pounds: Copper And Copper Compounds; Manganese And Manganese Compounds; Zinc compounds; Lead compounds.
In-state chemical count is not the pounds ranking
Montana TRI reporters with pounds > 0 and chemicals > 0 (n=67)
- Phillips 66 Co Billi...
- Montana Resources LLC 12
What this shows Phillips 66 Co Billings Refinery leads Montana chemical count. Montana Resources LLC leads reported pounds and sits at chemical-count #11. Chemical count is a disclosure mix, not toxicity or health risk.
Montana Resources LLC stamps DENSE volume with a dominant LAND pathway (100.0% land disposal) across 12 chemicals · 4 carcinogen-classified. Cumulative Form-R extract: 215.2M lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Nevada Gold Mines LLC - Carlin South Area and Nevada Gold Mines LLC - Turquoise Ridge.
Montana Resources LLC vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
215M lbs Top 1% higher than 100% 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
Montana Resources LLC inside Silver Bow's TRI pounds
Among the 103 Metal Mining facilities in this database, Montana Resources LLC reports the 6th-largest volume, placing it in the top 5.8% of its sector. This one site accounts for more than 99.9% of every pound reported in Silver Bow. Scale peers outside Montana include Nevada Gold Mines LLC - Carlin South Area and Nevada Gold Mines LLC - Turquoise Ridge.
County-dominant here means ≥25% of Silver Bow's reported pounds (215.2M lbs county total). Shares only print when the site reports ≥1,000 lbs.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Montana Resources LLC's total reported releases fell from 40.9 million lb in 2022 to 40.1 million lb in 2023, based on EPA TRI filings.
- Montana Resources LLC's chemicals reported rose from 11 in 2022 to 12 in 2023, based on EPA TRI filings.
- Montana Resources LLC's land releases fell from 40.9 million lb in 2022 to 40.1 million lb in 2023, based on EPA TRI filings.
Montana Resources LLC Form-R facts
Compare this facility
See how Montana Resources LLC stacks up against nearby facilities and the typical reporter.
3586.0× more than the comparison
6.0× 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 Montana Resources LLC releases toxic chemicals into the environment. Total: 215.2M lbs.
Emissions Trend Summary
From 2019 to 2023, total releases decreased by 12% (45.8M lbs to 40.1M lbs).
Montana Resources LLC: annual Form-R pounds
DENSE site · LAND pathway · TRI years 2019–2023
- 2019
- 2020
- 2021
- 2022
- 2023
What this shows Montana Resources LLC year-over-year reported totals (decreased by 12% 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: Copper And Copper Compounds.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 45.8M lbs | 9 |
| 2020 | 46.7M lbs | 10 |
| 2021 | 41.6M lbs | 10 |
| 2022 | 40.9M lbs | 11 |
| 2023 | 40.1M lbs | 12 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 4 of 12 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Copper And Copper Compounds | 78.0M lbs | - |
| Manganese And Manganese Compounds | 67.1M lbs | - |
| Zinc compounds | 46.6M lbs | - |
| Lead compounds | 18.2M lbs | - |
| Chromium | 1.8M lbs | - |
| Cobalt compounds | 1.4M lbs | Carcinogen |
| Nickel And Nickel Compounds | 1.2M lbs | Carcinogen |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 815.5K lbs | - |
| Cadmium compounds | 154.9K lbs | Carcinogen |
| Polycyclic aromatic compounds | 360 lbs | Carcinogen |
| Butyraldehyde | 0 lbs | - |
| Methanol | 0 lbs | - |
Montana Resources LLC · LAND-pathway site
Nearest TRI Facilities to Montana Resources LLC
Closest other reporters in Montana - including Solvay USA LLC Silver Bow Plant, Montana Precision Products LLC, Rec Silicon, ordered by distance.
Showing 8 of 66 other reporting facilities in Montana.
Similar Metal Mining Facilities
Other Metal Mining facilities with similar total release volumes (±80%), outside Montana - e.g. Nevada Gold Mines LLC - Carlin South Area, Nevada Gold Mines LLC - Turquoise Ridge, Nevada Gold Mines Llc-Cortez District.
Compare beyond Montana
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Montana Resources LLC on cumulative reported pounds (215.2M lbs) and distinct chemical count (12). Release-pound peers include Nevada Gold Mines LLC - Carlin South Area, Nevada Gold Mines LLC - Turquoise Ridge, Basin Electric Antelope Valley Station. Chemical-count peers include Fmc Agricultural Caribe Industries Ltd, Peerless Oil & Chemicals Inc., Prepa - Aguirre Power Generati on Complex. 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.
- Nevada Gold Mines LLC - Carlin South Area Carlin, NV · Metal Mining 216.7M lbs reported
- Nevada Gold Mines LLC - Turquoise Ridge Golconda, NV · Metal Mining 180.8M lbs reported
- Basin Electric Antelope Valley Station Beulah, ND · Electric Utilities 167.8M lbs reported
- Nevada Gold Mines Llc-Cortez District Crescent Valley, NV · Metal Mining 146.6M lbs reported
Similar chemical count
Nearest out-of-state reporters by distinct Form-R chemicals (deduped against the release-pound neighborhood).
- Fmc Agricultural Caribe Industries Ltd Manati, PR · Chemicals 12 chemicals
- Peerless Oil & Chemicals Inc. Penuelas, PR · Petroleum Bulk Terminals 12 chemicals
- Prepa - Aguirre Power Generati on Complex Aguirre, PR · Electric Utilities 12 chemicals
- Citgo Petroleum Corp Braintree, MA · Petroleum Bulk Terminals 12 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 Copper And Copper Compounds, Manganese And Manganese Compounds, Zinc compounds, Lead compounds; nearby reporters include Solvay USA LLC Silver Bow Plant. Montana Resources LLC stamps DENSE volume · LAND pathway · CARC-LEAN 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 Montana Resources LLC TRI extract (DENSE · LAND · CARC-LEAN · lead Copper And Copper Compounds) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Montana Resources LLC totals are self-reported EPCRA §313 estimates for Butte, MT, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 212230 · Metal Mining. more than 99.9% of Silver Bow TRI pounds in this extract. Nearest ABS peer: Nevada Gold Mines LLC - Carlin South Area (Δ 1.5M lbs). Pounds ≠ exposure.
Montana Resources LLC stamps DENSE volume · LAND pathway · CARC-LEAN · lead Copper And Copper 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