Minnesota Supreme Court case challenging the constitutionality of Winona County’s ban on new frac sand mines.

All sides have now staked out their arguments in a Minnesota Supreme Court case challenging the constitutionality of Winona County’s ban on new frac sand mines. The final written arguments were filed this month, and the court is currently scheduling an oral argument date — possibly this spring — before it makes a ruling. Whether plain-old sand and frac sand are the same thing remains at the heart of the case.
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