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As can be seen in Table 6-7, an additional well will be required between now and the year 2000 It was originally projected that a new well would be required in 1998 to meet increased water demand resulting from substantial industrial growth. Based on growth through 1997, it is not anticipated that the entire industrial area will be developed by the year 2000, as originally projected. The City will continue to monitor the growth in water demand to determine when an additional well is needed. The proposed new well will provide the City with sufficient film pumping capacity through the year 2020 when added to the system. It is proposed that the third well, Well No. 3, be located at the City Hall site. Other possible sites are City -owned property such as parks. Well No. 3 is proposed to withdraw water from the Jordan aquifer. 6.4 STORAGE CAPACITY Once the supply requirements have been established, that portion of the peak hourly demand which exceeds the supply capabilities (maximum daily demand) must come from equalization storage. In addition, the fire flow required must come from storage. The total storage capacity in a water distribution system should be capable of meeting both of the following criteria: a. Storage facilities should meet the peak hour flow rate minus the average hourly flow rate of the maximum day demand for a period of at least four hours. Peak hour demand should be met without depleting storage by more than half, so that a reserve is available for fue fighting purposes. (Data was not available to determine peak hour; therefore, a peak hour demand of 2.0 times the average hourly flow rate of the maximum day demand was used. This is a typical peak hour ratio for similar communities. Refer to Table 6 -7 for the projected maximum day demands.) b. Storage facilities should meet the requirements of independent insurance rating companies. (A commonly used insurance rating company is ISO Commercial Risk Services, Inc. ISO recommends that the City be capable of providing a 1,000 gpm fire flow for a minimum of four hours. The storage capacity should meet this fire demand without depleting storage by more than half, so that a reserve is available for meeting domestic demand.) The present and projected water storage requirements based on these criteria are presented in Table 6 -8. TABLE 6-8. PROJECTED WATER STORAGE,REQUIREMENTS CITY OntrITERVILLI , Insurance Rating Peak Hour Storage Storage Most Stringent Projected Total Requirements Requirements 0) Storage Criteria Storage Volume Year (gallons) (gallons) (gallons) (gallons) 2000 268,333 480,000 480,000 500,000 2005 311,333 480,000 480,000 500,000 CWP- 260A.080 6-5 260-080-25