In Colorado, a rule change in 2010 has mandated that oil and gas pit liners must be disposed of in proper (ie, modern, lined) facilities. But a law suit and industry complaints are seeking to halt full implementation of the rule. Until the new rules were in place, disposing of these liners in a landfill was optional and an option not often exercised. Gas operators, with landowners’ permission, would often bury the liners on private property. Megan Graham, director of the San Juan Citizens Alliance, discusses this in an op-ed piece in the Durango Herald.