This report is to broaden the U.S. Environmental Protection Agency's (EPA) series of solid waste studies by quantifying the amount of biosolids managed by municipal solid waste (MSW) facilities. Biosolids are the byproduct of municipal wastewater treatment and also are known as sewage sludge. This report focuses on biosolids generated by publicly owned treatment works (POTWs) and the subsequent management practices used by POTWs for treating and then recycling or disposing of biosolids. This report also examines the advantages to MSW operators of using biosolids in composting operations for land application and sale to the public. The key areas discussed in this report regarding the beneficial use or the disposal of biosolids, particularly at MSW facilities.