LAS VEGAS (AP) - Representatives of an Indian tribe with homes near a coal-fired power plant outside Las Vegas say they've got evidence the region's dominant electric utility submitted five years' worth of what they call "phony" pollution reports to the state.
They also allege that NV Energy avoided any penalties.
NV Energy chief Michael Yackira responded Wednesday, calling assertions that his company falsified documents "patently false."
Company and state officials acknowledge that from 2006 to 2011 a third-party report measuring fine pollution particles near the Reid Gardner plant was faulty.
A Nevada Department of Environmental Protection spokeswoman compared the data that was collected to a broken record playing the same song over and over.
But company and state officials say the power plant never failed to meet federal and state smokestack emission standards.