As part of its ongoing efforts to reduce water losses in the water distribution system, and reduce the levels of Non-Revenue water, the consultant team was hired by the City of Cambridge to perform an International Water Association (IWA) Water Audit and Water Balance for 2016. This audit quantifies water and revenue loss through physical leaks and apparent losses, helping the team to identify steps to minimize and improve system efficiency. The audit results serve as the baseline data to help the City to measure progress over time and aid in establishing a
The IWA audit identified Revenue and Non-Revenue
The AWWA Water Loss Control Committee (WLCC) Water Audit Software v 5.0 was used to complete the analysis. The AWWA software is the most widely used by North American water
The results of the software analysis for the full year of 2016, along with the information gathered about the City of Cambridge’s water system, was used to develop recommendations aimed at reducing the levels of non-revenue water in the City. The recommendations included the replacement of the billing system, replacement of aged customer meters, bulk billing meters, the implementation of DMAs and the
The City currently has an active leak detection team seeking out unreported leaks, using noise data loggers, and other equipment. To supplement these efforts, the consultant team developed proposed DMA boundaries to help the City establish more control and understanding of its distribution system.