Article

A study focused on the water quality around legacy lithium mines near Charlotte, North Carolina, revealed no direct impacts from historic mining on domestic well water. Researchers collected 93 groundwater and 99 stream samples over three years, finding that higher lithium and metal levels were due to natural geology, specifically pegmatite rock, rather than mining activities.

Surface water near mining sites exhibited elevated lithium levels linked to processing waste. Some wells showed arsenic levels exceeding federal standards, related to geological interactions with mica schist. Findings suggest that future lithium mine siting should include geological assessments to mitigate potential water quality issues.