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This is the third in a series of technical reports evaluating the economic and technical feasibility of wet systems for residential refuse collection. The major focus of this report is a documentation of a case study implementation of the wet systems concept in the Springfield, Massachusetts, urbanized area. Included are detailed analyses of the problems of hydraulic transport of ground refuse in the Springfield sewer system, treatment of a modified wastewater treatment plant; the impact on resource recovery and conventional solid waste management; socioeconomic, institutional and fiscal ramifications; and a total systems cost analysis that shows annual per household costs for refuse and sewage management. An analysis of a household refuse grinder in terms of a domestic appliance is presented.