fracking

A judge has dismissed a challenge to Winona County's ban on industrial frack sand mining.

WINONA, Minn. (AP) — Winona County has become the first Minnesota county to ban frack sand mining.

WINONA, Minn. (AP) — Winona County has taken a step toward being the first Minnesota county to ban frack sand mining.

NEW: WASHINGTON (AP) — The Environmental Protection Agency says hydraulic fracturing activities have not led to widespread harm to drinking water in the United States. But the agency also says the controversial drilling technique could affect drinking water if safeguards aren't maintained.