Environmental

Montana's hardrock mining legacy has resulted in numerous sites where:

AGround stability is improved due to excavation
BSoil and water contamination from heavy metals like arsenic, lead, and copper require long-term monitoring and remediation✓ Correct
CProperty values are unaffected because mining ended decades ago
DOnly surface disturbance exists with no subsurface impacts

Explanation

Montana's mining heritage (especially copper, gold, and silver mining) has left many areas contaminated with heavy metals including arsenic, lead, copper, and cadmium. These sites require long-term monitoring, remediation, and may impose disclosure obligations and liability on adjacent property owners.

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