Friday, September 25, 2009

Wyo DEQ decides against CBM water rule

The Wyoming Department of Environmental Quality is backing away from its method of regulating water discharged from coal-bed methane wells after two reports by independent consultants questioned the practice. The method has been in use for a few years. The department decided that it was important enough to ask the state Environmental Quality Council, a governor-appointed board that approves the state's environmental rules and regulations, to approve the method as a formal rule when the council meets next week. On Wednesday, the department withdrew the proposed rule. The department announced that it will instead convene a panel of experts to recommend ways to monitor drainages and prevent problems with soil salinity. Coal-bed methane wells extract methane from coal seams by pumping large amounts of groundwater out of the coal and onto the surface. That depressurizes coal seams, causing methane to condense out of the groundwater much like bubbles of carbon dioxide inside a soda bottle that's been opened. Most coal-bed methane development in Wyoming occurs in the Powder River Basin, where ranchers grow hay for their cattle in bottomlands and irrigated pastures. Millions of gallons of extracted groundwater has caused many of the arid region's ephemeral streams to flow year-round. For some ranchers, that's helpful. Others have had problems with salt buildup in their hayfields. "It's damaging the soil and the vegetation and it's going to be really hard to reclaim those areas," said Jill Morrison, an organizer for the Sheridan-based Powder River Basin Resource Council...trib.com

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