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Arizona Launches Investigation into Proposed Critical Mineral Mine’s Contaminated Water Discharge

Inside Climate News · By Wyatt Myskow · last updated
South32’s Hermosa, the first mine in a fast-tracked permitting program, discharged water with levels of a heavy metal that required alerting the state, but neighbors learned about the issue from local watchdogs.

By Wyatt Myskow

A proposed critical minerals mine in southern Arizona that was the first added to a federal permitting process designed to be quicker and more transparent has reported water with levels exceeding the state’s regulatory limits of a mineral that can damage the heart, lungs, stomach and eyes. On Tuesday, the Arizona Department of Environmental Quality (ADEQ) told Inside Climate News that it is launching an investigation into the discharges. 

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