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I.01 r ` <br />t� i on <br />• <br />0 <br />March 1, 1978 <br />Mr. Brad Van Nest, Mayor <br />City of Orono <br />3295 Carman Road <br />Excelsior, MN 55331 <br />Dear Mayor Van Nest: <br />This letter is in response to your letter of February 6, 1978 and <br />our meeting of February 2, 1978. <br />The Commission has reviewed the proposed interim 1990 MUSA as shown <br />on your Map 1, "Urban - Rural Service Area" submitted with your letter <br />of February 6, 1978. Your plan has excluded the Wayzata Country Club <br />and the Chevy -Chase Development, however, according to our knowledge <br />these areas are already being provided sanitary sewer service through <br />the City of Wayzata. With the inclusion of these two areas, the <br />Commission has no objection to having the interim 1990 MUSA boundary <br />established as shown on said map. The Commission uses the term interim <br />1990 MUSA boundary since the exact location of the line will not be <br />established until after your Comprehensive Plan/Sewer Plan are prepared <br />in accordance with the Metropolitan Land Planning Act. Please refer <br />to our letter of March 22, 1977 regarding the information needed to <br />update your preliminary comprehensive sewer plan to the current require- <br />ments of a comprehensive plan. <br />If it is your intention to have this preliminary comprehensive sewer <br />plan reviewed and approved as an amendment to your original -Comprehensive <br />Sewer Plan (approved on November 7, 1973), please submit an adopted <br />revised plan which represents the City's current planning. <br />You asked the question during our meeting as to what parameters were <br />used in the design of the lift station and forcemain. The design of <br />the lift stations and forcemains are based on the following: <br />Current Desi4n - 20 Year Life <br />Orono Station (one pump and,one standby pump) <br />2400 gpm peak or 1.07 mgd average <br />101 feet of total dynamic head <br />18" Forcemain velocity = 3 feet per second <br />20" Forcemain velocity = 4 feet per second <br />Population Equivalent served by Lift Station <br />8500 Orono <br />600 Minnetonka Beach <br />500 Orono - Local Lift Station <br />350 METRO /OUARE BLDG. <br />7TH& ROBERTlTREETf <br />/RInT PAUL mn 55101 <br />612 222.8423 <br />n <br />