WildEarth Guardians (“Petitioner”) petition the Environmental Appeals Board (“Board”) to review a decision by U.S. EPA Region 8 (“Region”) to issue six synthetic minor new source review permits to Anadarko Uintah Midstream, LLC (“Anadarko”) authorizing continued operation of six natural gas compression facilities in Uintah County, Utah, within the boundaries of the Uintah and Ouray Indian Reservation. The Region issued the permits pursuant to the Federal Minor New Source Review Program in Indian Country. 40 C.F.R. §§ 49.151-.161.