StopWaste conducts periodic waste characterization studies to better understand the types and quantities of materials disposed of in Alameda County. Using standard sampling techniques, this study measured the composition of the landfill, recycling, and organics streams by generating sector and material type. This study provides a valuable snapshot in time of the materials that comprise our waste stream and help contribute to priority setting and the evaluation of Agency goals. The study was designed to be comparable with previous countywide waste characterization studies to facilitate tracking of disposal trends.