GRAND CANYON NATIONAL PARK — Tourists staying at Grand Canyon National Park began moving to accommodations outside the park Thursday after water pipeline failures forced the sudden shutdown of ...
Arizona regulators just approved converting two major coal plants to natural gas.
PG&E got a new wastewater discharge permit and Clean Water Act certification.
More than a year after uranium shipments resumed, the Navajo Nation EPA is drafting regulations and asking for public input by March 9.
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