The project demonstrates how new or improved solid waste management techniques could solve a regional solid waste problem by developing a solid waste disposal system and plan for county-wide reference and use, and by developing a protocol and timetable for putting the plan into effect. Types and quantities of solid wastes now being produced in Maricopa County, Arizona, will be determined, and existing disposal methods identified. The interrelationship between current collection practices and disposal practices will be studied. Estimates of population growth to the year 2000, and parallel projected increases in solid waste production will be made.