Analysis of Inflow Solutions among Eleven Sewer Systems

This paper was undertaken to compare eleven utilities where part or all of the utility tested for infiltration and inflow with intention of determining the value data gathered from midnight investigations, comparing potential costs (in 2020 dollars), and understanding whether statistical methods can be used predict potential problems on system. Inflow amounts identified a utility system without significant effort. correction is robust easy implement (though often overlooked). After addressed, results indicated that a investigation could quickly identify portions sewer system in need attention. Maps leaky pipe sections identified, and commonalities may become apparent. Statistical were used to high groundwater levels lateral issues as critical on these systems. The utilized at other help guide them addressing first opposed focusing only the traditional lining solutions that ignore inflow issues plague managers.