Felicia Fonesca

FLAGSTAFF, Ariz. -- The Interior Department is asking the U.S. Environmental Protection Agency to delay its decision on pollution controls for a northern Arizona coal plant while it studies the benefits of the plant and impacts of a potential shutdown.

The Bureau of Reclamation under Interior is the majority owner of the Navajo Generating Station near Page. The EPA is considering whether to require future reduction of nitrogen oxide emissions at the 2,250-megawatt plan on the Navajo Nation to improve visibility at places like the Grand Canyon.