Oklahoma Attorney General (AG) W.A. Drew Edmondson (D) has sent a letter to EPA Region 6 Administrator Alfredo Armandariz requesting that EPA take enforcement or other action regarding several Texas coal-fired power plants that “have, at a minimum, the potential to adversely affect air quality in Oklahoma.” According to the letter, six permit applications for coal-fired power plants were pending at the Texas Commission on Environmental Quality (TCEQ) on April 1, 2010, and seven additional plants have already received permits and are in various stages of construction. The letter threatens that unless TCEQ reviews its procedures for issuing permits, Oklahoma may be forced to file a petition with EPA under section 126 of the Clean Air Act alleging that Texas sources are contributing significantly to nonattainment in Oklahoma.