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Projection Methods <br />• Objectives <br />– Reconnaissance - level water use forecast <br />– Consistent data and method throughout the state <br />– Maximize use of available data <br />– Guide discussion of addressing state ’ s future water <br />needs <br />• Past evaluations and databases <br />– Vary in method and demographic projections <br />– Used to guide evaluation and validate results <br />5 <br />Definition of M&I Demand Terms <br />Demand Terminology <br />Definition <br />M&I Demand All of the water use of a typical municipal <br />system, including residential, commercial, <br />industrial, irrigation, and firefighting <br />SSI Demand Large industrial water uses that have their <br />own water supplies or lease raw water <br />from others <br />M&I and SSI Demand The sum of M&I demand and SSI <br />CU Demand That portion of the water demand for a <br />specific category of water use that is <br />consumed and does not return to the <br />stream system through return flow <br />6 <br />3 <br />