Hecla Mining Co
2 facilities · 2 states · 434.2M lbs total releases
According to the EPA Toxics Release Inventory, Hecla Mining Co is the reported parent of 2 Form R facilities across 2 states, disclosing 434.2M lbs of toxic releases. 6 of 24 reported chemicals carry a carcinogen classification in the TRI extract. The heaviest-reporting state by release volume is Alaska (375.5M lbs). Those TRI figures remain self-reported disclosure pounds for Hecla Mining Co, including carcinogen-flagged substances, not a measured public-health risk score.
Release-over-release change
What changed for Hecla Mining Co: EPA TRI 2023 reporting year
Same facilities, both years
+6.6%
2 facilities that filed in 2022 and 2023
Whole inventory
+6.6%
106.3 million lb → 113.3 million lb, every facility that filed
- Hecla Mining Co's total reported releases rose from 106.3 million lb in 2022 to 113.3 million lb in 2023, based on EPA TRI filings.
- Hecla Mining Co's off-site transfers fell from 840 lb in 2022 to 320 lb in 2023, based on EPA TRI filings.
- Hecla Mining Co's water releases fell from 1.8 thousand lb in 2022 to 1.4 thousand lb in 2023, based on EPA TRI filings.
- Hecla Mining Co's land releases rose from 106.3 million lb in 2022 to 113.3 million lb in 2023, based on EPA TRI filings.
TRI parent disclosure trail
Read Hecla Mining Co from filing to facility
Largest Form R sites under this parent: Hecla Greens Creek Mining Co; Hecla Ltd Lucky Friday Mine Unit. Neighbor parents on the disclosure ladder: Teck American Inc; Kinross Gold Corp (usa) Inc; Coeur Mining Inc.. Largest disclosed chemicals by pounds: Barium compounds (except for barium sulfate (CAS No. 7727-43-7)); Zinc compounds; Lead compounds; Manganese And Manganese Compounds; Lead And Lead Compounds. Heaviest-reporting states in this extract: Alaska; Idaho. Industry labels on the parent rollup: Metal Mining. Start from those named sites and neighbors rather than a generic parent blurb; pounds stay disclosure, not risk.
Source: U.S. Environmental Protection Agency, TRI Basic Data Files Toxics Release Inventory (TRI) · August 2026
Largest Form R sites under this parent: Hecla Greens Creek Mining Co; Hecla Ltd Lucky Friday Mine Unit. Neighbor parents on the disclosure ladder: Teck American Inc; Kinross Gold Corp (usa) Inc; Coeur Mining Inc.. Largest disclosed chemicals by pounds: Barium compounds (except for barium sulfate (CAS No. 7727-43-7)); Zinc compounds; Lead compounds; Manganese And Manganese Compounds; Lead And Lead Compounds. Heaviest-reporting states in this extract: Alaska; Idaho. Industry labels on the parent rollup: Metal Mining.
Among slug-merged TRI parents in this extract, Hecla Mining Co sits near the top of the release list (rank #3 of 4,988). Hecla Mining Co files across 2 states, a regional parent portfolio rather than a single-state discloser. Releases are facility-concentrated: Hecla Greens Creek Mining Co accounts for most of Hecla Mining Co's disclosed pounds, so peer comparisons should weight that site, not an even portfolio average.
Parent aggregation for Hecla Mining Co follows facility-reported names. Compare the named neighbors (Teck American Inc; Kinross Gold Corp (usa) Inc; Coeur Mining Inc.) before treating rank as a hazard score; TRI stays self-reported and unweighted by toxicity.
Where Hecla Mining Co sits among TRI parents
Hecla Mining Co sits on a disclosure ladder beside Teck American Inc and Kinross Gold Corp (usa) Inc and Coeur Mining Inc.. Open those parents for a different facility count, state span, and chemical mix.
Higher disclosed volume
- Teck American Inc · rank #1 · 3.3B lbs
Lower disclosed volume
- Kinross Gold Corp (usa) Inc · rank #4 · 79.6M lbs
- Coeur Mining Inc. · rank #5 · 11.3M lbs
Largest chemicals disclosed by Hecla Mining Co
Barium compounds (except for barium sulfate (CAS No. 7727-43-7)); Zinc compounds; Lead compounds; Manganese And Manganese Compounds; Lead And Lead Compounds lead the Form R pound rollup for this parent, including filings such as Hecla Greens Creek Mining Co. Pound totals, not toxicity-weighted risk.
| Chemical | Disclosed lbs |
|---|---|
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 270.6M lbs |
| Zinc compounds | 79.2M lbs |
| Lead compounds | 35.8M lbs |
| Manganese And Manganese Compounds | 33.0M lbs |
| Lead And Lead Compounds | 13.6M lbs |
Where does this company operate?
| State | Facilities | Total Releases |
|---|---|---|
| Alaska | 1 | 375.5M lbs |
| Idaho | 1 | 58.7M lbs |
Facilities (2)
| Facility | Releases |
|---|---|
| Hecla Greens Creek Mining Co Juneau, AK | 375.5M lbs |
| Hecla Ltd Lucky Friday Mine Unit Mullan, ID | 58.7M lbs |
Frequently Asked Questions
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Compare beyond the release ladder
Nationwide peers by disclosed pounds & facility count
Cross-portfolio TRI parents nearest Hecla Mining Co on total disclosed release pounds (434.2M lbs) and reporting facility count (2). Release-volume peers include Barrick Nevada Holding LLC, Cleveland-Cliffs Inc, Freeport-McMoran Inc. Neighborhoods are forced disjoint so each axis surfaces a different set of parents.
Similar disclosed release pounds
Nearest parents (≥3 facilities, ≥10k lbs) by absolute TRI disclosed pounds, not rank-adjacent ladder neighbors.
About This Data
EPA TRI parent totals cover all media. This extract's heaviest states for the parent are Alaska, Idaho; facility-reported names can vary across subsidiaries.
Source: U.S. Environmental Protection Agency, TRI Basic Data Files
What to do with Hecla Mining Co's TRI parent record
From Hecla Mining Co, open Hecla Greens Creek Mining Co or compare against Teck American Inc rather than reading rank alone.
- Open the largest Form R site for Hecla Mining Co (Hecla Greens Creek Mining Co in AK). Largest facility
- Compare against Teck American Inc, the next-higher disclosed-volume parent. Higher-volume parent
- Browse the full parent release ranking to see where Hecla Mining Co sits among all slug-merged TRI parents. All parent companies
Rank and peers (Teck American Inc, Kinross Gold Corp (usa) Inc) are disclosure volume only, not toxicity-weighted risk or enforcement status.
Use and verify this record
Hecla Mining Co's record groups disclosed TRI parent-company filings so readers can compare reporting context without treating the total as a measure of risk.
Company release figures are computed directly from EPA Toxic Release Inventory data; source names and the record-linking method are documented in the methodology.
Primary sources
- EPA Toxics Release Inventory Basic Data Files - annual facility-level chemical-release disclosures
PlainEnviro renders public EPA records directly from its data pipeline; no figure on this page is typed in by an editor. See the editorial standards and corrections policy for how source changes and reported errors are handled.