This publication presents case histories of five properly managed systems of land application of municipal wastewater. In terms of purpose, natural conditions, and problems of implementation, the projects presented have somewhat different histories. The design criteria and operation of each facility are described, as well as the soil characteristics and the monitoring schedules used to assess the chemical and biological parameters. The five facilities considered are: The Michigan State University Water Quality Management Project (WQMP); The City of Tallahassee Spray Irrigation Project (TSIP); The Flushing Meadows Project (FMP); The Pennsylvania State University Wastewater Renovation and Conservation Project (WRCP); and The City of Boulder Colorado Project (BCP).