Below are EPA's National Pollutant Discharge Elimination System (NPDES) final permit and supporting documents for the Hecla Limited Lucky Friday Mine near Mullan, Idaho.
- Permit number: ID0000175
- Effective date: August 1, 2019
- Modified: November 1, 2020
- Permit expires: July 31, 2024
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2020 Revised NPDES Permit, Lucky Friday Mine, Idaho, #ID0000175 (PDF)(39 pp, 461 K,
September 10, 2020)
Revised final discharge permit.
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2020 Statement of Basis, Lucky Friday Mine, Idaho, #ID0000175 (PDF)(14 pp, 664 K,
July 2020)
Technical basis for permit revision.
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2020 Response to Comments on Revised Draft NPDES Permit for Hecla Lucky Friday Mine, Idaho, #ID0000175 (PDF)(8 pp, 369 K,
September 2020)
EPA's responses to public comments on the July 2020 revised draft permit.
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2019 NPDES Permit Fact Sheet, Hecla Limited Lucky Friday Mine, Idaho, #ID0000175 (PDF)(87 pp, 2 MB,
February 2019)
Technical basis for permit.
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2019 Response to Comments on Draft NPDES Permit for Hecla Lucky Friday Mine, Idaho, #ID0000175 (PDF)(45 pp, 1 MB,
May 2019)
EPA's responses to public comments on the February 2019 draft permit.