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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />An above ground, insulated steel tank is the recommended alternative tank type for reasons <br />related to both the goals of the water system upgrade project and the financial resources <br />available to complete the project. The primary objective of the project is to enhance the fire <br />protection capability of the Minturn water system and meet the criteria outlined by the ISO. As <br />discussed earlier, a minimum tank size of 600,000 gallons is required to achieve this objective. <br />Cost estimating for the entire project has indicated that a tank of this size, constructed of either <br />pre-stressed concrete or reinforced concrete, can not be built within the project budget. A quality <br />steel tank of this size can be constructed within the project budget and should provide the Town <br />of Minturn with many years of low maintenance service. <br /> <br />V.3 East Site Storage Tank <br /> <br />A. Description <br /> <br />This tank site alternative is located hi. the SW 1/4 of the SE 1/4 section of section 26. The site <br />is on a southwest facing slope at a base elevation of 8050. The tank will be connected to the <br />existing distribution system by approximately 860 feet of 12 inch ductile iron pipe. New pumps <br />located at the water treatment plant will be controlled through telemetry transmission of tank <br />water level, activating the, pumps to fill the tank when it has reached a preset low level <br />elevation. During all other periods of operation the tank will gravity flow into the existing <br />system, <br /> <br />B. Design Criteria <br /> <br />The tank elevation at this site was selected to raise normal system operating pressures so that <br />design criteria of a minimum 40 psi, and a maximum of 100 psi, would be satisfied at all <br />demand points. This site is also high enough in elevation to provide required fire flows while <br />maintaining a minimum residual pressure of no less than 20 psi, as required by ISO and UFC. <br />A secondary criteria, of setting the tank at an elevation whereby gravity flow from a potential <br />future water treatment site at Bolt Lakes would be possible, is also satisfied by a tank at this site <br />and this elevation. Figure 1 shows the location of Bolt Lakes. <br /> <br />A tank located at this site could be constructed of either concrete or steel since it will not need <br />to be fully buried. <br /> <br />C. Map <br /> <br />See Figure 4. <br /> <br />Town of Minturn Water System Upgrade Project, March, 1995 <br /> <br />25 <br />