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. -. -. - -. . <br /> _ - ;. _ - , <br /> • ' ' Page ?�7 <br /> /� <br /> ��:� . <br /> �-�-_� <br />, � `-�� ` ��"arch 1 , 1978 <br /> `���`���='�J-� <br /> \ ��� ( <br />, ` j ��1r. 6rad Van tJest, i�iayor <br />� - � Ci ty of O��ono <br /> � 3295 CariTan Road <br /> Excelsior, ��7�d 55331 <br /> Dear ��layor Van "dest: <br /> This letter is in resF�onse �o your letter of February 6, 1978 and <br /> our meei,i ng of �ebruary 2, 1978. <br /> The Corunission has revietiti�ed the proposed interim 1990 1�1USA as shown <br /> on your t�"ap 1 , "Urban - Rural Service Area" submitted with your letter <br /> of February 6, 1978. Your plan has excluded the UJayzata Country Club <br /> and the Chevy-Chase Development, however, accordina to our knowledge <br /> these areas are already being provided sanitary se�•�er service throuqh <br /> the City of Wayzata. t�tith the inclusion of these two areas, the <br /> Corunission has no objection to having the interim 1990 MUSA boundary <br /> established as shown on said map. The Corrvnission uses the term interim <br /> 1990 MUSA boundary since the exact location of the line will not be <br /> established until aiter your Conprehensive 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 con�renensive plan. �_ - <br /> I� If it is your intention to have this prelir�inary comprehensive sewer <br /> plan reviewed and approved as an amendment to your original Comprehensive <br /> II'� • Sewer Plan (approved on November 7, 1973), please submit an adopted <br /> revised olan which reoresents the City's current planning. <br /> You asked the question during our meeting as to w�hat 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 Design - 20 Year Life <br /> Orono Sta�ion (one pump and one standby pump) <br /> 2400 apm peak or 1 .07 mad 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 /> , <br /> 350 f^cTROlOJR%c SLDG. i <br /> %i N 6 R.^;:_R7 i�R�ET/ � <br /> �:;,,��r�u:mn�,;oi ; <br /> a;2 222�.423 ; <br /> I <br /> ` � I <br /> , � . <br />