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I I I I I I I I I I I I I I I I I I II I II The remainder of the total 1,000 af allocated to the Tribe or 404 af would be available for industrial use. The design flow needed to serve such purposes would be: 404 af x 1.50 = 0.84 cfs 724 af /cfs/yr The combination of these peaks results in a design flow of 2.50 cfs. It is proposed that the desi gn flow of the pi pel i ne be narrowed to a range of discharges between 2.5 cfs and 3.0 cfs. Subsequent alternatives and cost comparisons will be developed for each of these two flows to determine hO\~ cost-sensitive the pipeline is to the maximum flow. As a further confi rmati on that both of these flow rates coul d del i ver the annual 1,000 af water right we offer the following comparison: ------------------------------------------------------------------------------- ------------------------------------------------------------------------------- Table 3.3 Flow/Volumetric Comparison Flow (cfs) 1.38 2.5 3.0 Volume Based on Constant Flow All Year (af) 1,000 1,805 2,156 365 202 168 Number of Days at Same Rate to Deliver 1000 af ------------------------------------------------------------------------------- ------------------------------------------------------------------------------- 3.3.1 Fire-Flows and Related Storage Fire-flow capabilities among municipalities vary tremendously and although there are design guidelines, the design criteria are not mandatory. Failure to provide a sufficient fire-flow rate with well-distributed fire hydrants and mains to deliver the flow may result in higher insurance rates for COl1Jnunity and residential property. The American Water Works Association (AWWA, 1962) published recommendations of fire-flow capabilities for average municipalities based on population. A flow-rate and duration is specified which can be met 3-8 1060c