CHEYENNE, Wyo. (AP) — A state review panel has opened a hearing on an environmental group's challenge to an application from an Australian company that wants to turn coal into gas at an underground site in northeastern Wyoming. The Wyoming Environmental Quality Council started a hearing Thursday in Cheyenne on an application from Linc Energy to allow it to open a test facility at a site about 8 miles northwest of the town of Wright. The company intends to pump air into an underground coal seam to feed an oxidation process that will generate gas. The Powder Basin Resource Council says the process threatens to pollute groundwater. Don Fischer with the Wyoming Department of Environmental Quality testified Thursday that the aquifer in the vicinity of mine site isn't a source of drinking water.Read more on NewsOK.com