CHRLF receives municipal solid waste (MSW) from most municipalities and unincorporated areas of King County except the City of Seattle. The Area 8 Development Project is a 34-acre horizontal expansion that provides capacity for an additional 6 years of MSW. The project also included significant site work to modify environmental control facilities serving the new Area. BHC lead significant elements of the Area 8 Development including overall project direction as well as design of lining systems and leachate and contaminated surface water management facilities.