The area wide power failure of August 14, 2003 that affected the northeastern United States and southern Ontario offers a unique opportunity to quantify and characterize blackout water demand. August is typically the month of maximum demand in the City of Toronto and Region of York and thus the time of the blackout can be assumed to constitute a worse case scenario. This thesis analyzes the performance of the City and Region's water supply network prior, during and after the blackout. Blackout demand multipliers are determined for the City and Region to use in their emergency planning. This thesis also calculates current demand patterns and examines them for evidence of change. Furthermore, current demands are used to test the predictive capability of the Toronto Daily Operation Water Demand Model developed by Sadiq (2003). Demand management is considered as a method of closing the gap between Toronto's supply and anticipated future demand. In addition to the analysis of demand, recommendations are summarized for the reconfiguration of SCADA systems to reduce the amount of effort required to compile, interpret and extrapolate demand data.
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