PROJ00330 - Laserfiche WebLink

Home Browse Search

I I I I I I I I I I I I I I I I I I I 12. The resulting monthly peaking factor for the 8-year period was 1.84. For the three years in which the highest volume of water use was recorded, the average monthly peaking factor was 1.81. The monthly peaki ng factor expressed in another fonn is the percent of the annual use during one peak month. For a 1.84 monthly peaking factor, the one- month total is 15.33 percent of the annual volume. Deriving the peaking factors for 10-day and daily flo"l is usually based upon actual use records. Long-tenn records of this nature are not available for Towaoc and we expect that future use patterns will change substantially when the finn water supply becomes available. The research by Hughes and Gross (1979), for small towns in Utah, shows the 10-day peaking factor to be 110 percent of the monthly peaking factor with the daily peaking factor being 119 percent of the monthly peaking factor. Table 3.1 summarizes the computation for a Towaoc municipal system peaking requirements based on the aforementioned percentages. ------------------------------------------------------------------------------- ------------------------------------------------------------------------------- Table 3.1 Estimated Towaoc Water Demand Peaking Factors Average Annual Basi s Monthly Peaking Factor 10-Day Peaki ng Factor Daily Peaki ng Factor 1.0 l.R4 2.02 2.19 ------------------------------------------------------------------------------- ------------------------------------------------------------------------------- Table 3.2 extends the peaking factors into flow rates for the case in which the total annual delivery is to be 1,000 af. 3-6 1060c