As managing partner of WAI Stoller Disposal Operations (WSDO), WAI provides landfill management and operations at this 107-acre landfill with a disposal capacity of 18 million tons. This multi-celled EPA-regulated landfill is authorized to accept, stage, treat and dispose of low-level radioactive, hazardous and mixed wastes generated by Hanford Site environmental restoration activities. WAI ensures that the full spectrum of operations at ERDF are performed safely and compliantly, working closely with all Hanford waste-generating contractors.