The objective of this project is to clean up the Western Research Institute`s North Site in an environmentally sound and cost-effective manner. Work is broken down into the following phases: Phase 1, definition of waste streams; Phase 2, disposal of hazardous wastes; Phase 3, disposal of nonhazardous materials; Phase 4, soil sampling and disposal of buried wastes; Phase 5, decontamination and disposal of equipment; Phase 5a, groundwater monitoring; and Phase 6, preparation of material inventory database.