In 2004, The City of Toronto selected Veritec, a Miya Group Company, to conduct their Water Loss Assessment and Leak Detection Study. The project involved the development of a detailed IWA/AWWA Water Balance for the entire system as well as an evaluation of the Non-Revenue Water on a pressure district basis. In addition, a full review of current practices within the City regarding water main break repairs and active leak detection was completed. Pilot testing of various leak detection strategies using both district metered areas and pressure management, where completed. The results of the Water Balance, coupled with the data obtained from the pilot area, were used to establish a long-term, 5-year water loss reduction plan. The City is currently establishing a dedicated group focused at implementing this plan.
The 2004 Water Balance shows that Toronto is operating at an ILI of 4.2. The field implementation of the pilot areas identified several unreported leaks and the benefit of pressure management was demonstrated. Savings in excess of 350 m³/day were realized in the pilot areas.

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