ALCOSAN (Allegheny County Sanitary Authority), as part of its plan to reduce the effects of rain and groundwater infiltration into its wastewater sewers, engaged Sci-Tek to assist with planning, perform quality reviews of monitored wastewater flow data, project and assess future conditions in the watersheds, and perform various modeling services. Sci-Tek personnel also assisted in the sewershed delineation of 400+ countywide connections to the ALCOSAN system. This information was used to populate a model, which identifies system loading, collection inefficiencies, and projects system needs and improvements.