The report summarizes 26 months of work in waste water reclamation at the South Tahoe Public Utility District plant, South Lake Tahoe, California. The purpose of the project was to evaluate the performance of the operating, advanced waste treatment plant, which included conventional biological treatment and anaerobic sludge digestion, as supplemented by chemical coagulation, mixed-media filtration, and activated carbon adsorption, with particular attention to the regeneration and reuse of granular activated carbon. In addition, investigations were to be made of coagulant recovery and reuse, and removal from the waste waters of the biological nutrients -- phosphorus and nitrogen. Information gained during the studies was to be used in the proposed expansion of the plant to a total capacity of 7.5 mgd.