Comprehensive Efficiency Project to Improve Water ServiceComprehensive Efficiency Project to Improve Water ServiceFast Turnaround NRW Reduction Project in Impoverished Brazilian CityPrimary School Water Efficiency and Conservation Education InitiativeConservation Education and Infrastructure Upgrades Reduce Consumption By 30%Commercial Meter Replacement Leads to Revenue Jumps Decade-long NRW Project to Cut Water Losses for the Long-Term Comprehensive Efficiency Program Leads to More than 150% Better SystemLearning the Islandsâ€™ Water Situation to Improve EfficiencyAssessing Water Losses and Saving Hundreds of Cubic Meters Per DayCaledon Wells Optimizimg their Water System for Now and into the Future
The city of Toronto washed to conduct a detailed water loss assessment and leak detection study to develop a detailed water balance for their entire system focusing on non-revenue.
To develop a detailed IWA/AWWA Water Balance for the distribution and an evaluation of non-revenue water on a pressure district basis - the project also included conducting a full review of current city practices regarding main break repairs and active leak detection.
The water loss assessment and leak detection study was carried out over a four-year period (2004-2008). Pilot testing of leak detection strategies using district metered areas (DMAs) and pressure management were completed.
The results of the water balance and data from pilot areas were then used to develop a 5-year comprehensive water loss reduction strategy.
Field implementation of the pilot areas identified several unreported leaks and clearly showed the benefits of pressure management in DMAs. Savings of over 350 m3/day were realized in pilot areas.
Toronto based its ongoing plan on this feasibility study.