In December of 2021, after months of questioning the King County Solid Waste Division (KCSWD) about their plans to expand the Cedar Hill Landfill, the Institute for Energy, Waste and Resource Management sent a challenge to the Director of the SWD. In it we took issue with their decision to expand, their claim of a recycling rate of better than 50%, their plans to improve that rate, their failure to take action on recommendations for improvement provided by consultant reports that they commissioned, and, last but most important, their claim that they capture more than 90% of the methane generated by the solid waste in the landfill.