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Page 2 <br />Mr. Frank Kampel <br />August 20, 1982 <br />I have performed a hydraulic analysis of the proposed watermain <br />route -through this site. Based on the "Analysis of the City of <br />Mounds View Water System", prepared in 1978 by Consulting Engineers <br />Diversified, Inc., I have estimateu that residual pressure on this <br />site will be in excess of 23 psi. The Insurance Services Organiza- <br />tion, which typically rates fire fighting capabilities of the City's <br />water system, requires that residual pressures be 20 psi or greater. <br />In order to make this calculation I have relied on the water system <br />report which states that the minimum residual pressure on the city's <br />water main system was 31 psi (reference page 44) under a demand of <br />peak hourly flow plus a fire flow in this area of 3,000 gallons per <br />minute. I have also made other assumptions in order to arrive at <br />this calculation which I believe were exceedingly conservative. <br />I am willing to discuss my calculations and assumptions on this <br />matter with your City Eagineer. a <br />I have spoken to Dan Keuther of the Minnesota Department of Transpor- <br />tation regarding the access permit to Highway 10. Mr. Keuther <br />has indicated that the permit can be provided on the conditions that <br />the owner of the property request that the new permit application f <br />supersede the previous permit application and that we provide a 32 ` <br />foot wide driveway entrance on the highway right of way with a <br />standard right turn lane. These changes have been made to the site <br />plan. <br />I have submitted a detail of the emergency vehicle knock down barrier <br />to Tom Skeat, Mounds View City Fire Marshall, on about July 1, 1982. <br />I hope that they have been able to review our proposal in this <br />regard and find it acceptable. <br />The site plan had been changed to show a 40 foot wide easement for <br />access to the property to the east. <br />I hope that this letter appropriately addresses all of the City's <br />cuucerns with regard to this application. If you have any questions <br />on any of these matters please contact me at your earliest con- <br />venience. <br />Sincerely, <br />an�J yes P. DeBenedet, P.E. <br />JPD/geg <br />