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Mr. Scott Abernethy <br /> • May 9, 1996 <br /> Page Two <br /> 4. As a percentage of storage capacity, what is the average level maintained? <br /> The two 1,000,000 gallon water towers have a design depth of 40 feet for water <br /> storage. The one located in the Western Area currently fluctuates between 39 and <br /> 40 feet. However, this area does not have a very high water demand at this time. <br /> To give you an idea of how it may fluctuate in the future, the tower located along <br /> TH 169 has a fluctuation of approximately four or five feet. <br /> 5. Gallons per minute? <br /> The design of the water distribution system in the Western Area of Elk River will <br /> have a minimum delivery rate of 3,500 gallons per minute. It is possible that this <br /> delivery rate could be even higher. <br /> 6. Static psi? <br /> The static pressure predicted for the Western Area is in the low 50's, <br /> approximately 53 to 55 psi. <br /> 7. Residual psi? <br /> The answer to question 5 regarding delivery rate of 3,500 gallons per minute <br /> assumes a minimum residual pressure of 20 psi. <br /> I hope this provides adequate information about the water system in the City of Elk River. <br /> Should you have any other questions or need further clarification of any of this <br /> information, please call. <br /> Sincerely, <br /> MSA, CONSULTING ENGINEERS <br /> • <br /> C/-_ ' <br /> Terry J.-Maurer, P.E. <br /> TJM:tw <br /> cc: Mr. Pat Klaers, City of Elk River <br /> 000-0607.may <br />