Sanitary landfills presently play a significant role in the disposal of solid wastes, and they will probably continue to do so in many areas because of their economic advantages over other methods. However, justifiable concern exists about the environmental effects of sanitary landfills. The research project described here was undertaken to provide a better understanding of the processes that occur within a sanitary landfill and the related environmental effects. The initial field-scale test cell was completed in June 1971 and was monitored for temperature, gas composition, settlement, and leachate quantity and characteristics until closure in September 1980. This report presents the results of the analysis of the data collected from the batch-type cells during the nine year monitoring period.