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, l�cv D(�C��-OC��! <br /> 4229 76°i St.NE,SuAe 204 I <br /> Marysville,WA 98270 • <br /> Phone(360)657�4709 � � � � � <br /> FAX (360)657�779 <br /> ebergwaQvedzon.net <br /> �� <br /> May 18, 2006 ���� �� i� <br /> Jane Zimmerman � J � 1� I �� <br /> City of Everett � � <br /> 3200 Cedar Street <br /> Everett, WA 98201 <br /> Re: Drainage Report — Paine Field Way Cottages <br /> Site Address— Undeveloped Land <br /> For Walter Kjorsvik— BE05020 <br /> The 1.66-acre property is located at the northwest corner of Paine Field Way/ <br /> 112`n St SW in the city of Everett. <br /> The property is undeveloped, vacant land and contains no structures. The <br /> property is mixed grass, brush and trees. <br /> Drainage slopes to the southwest with slopes averaging 8.4%. <br /> Site soils are classified as: <br /> 5 —Aldervvood — Urban land complex— (Type C Soil) <br /> , The proposed project includes the construction of 21 residential units around a <br /> central courtyard including an attendant storm sewer system, underground <br /> detention system and vegetated treatment cell, sanitary sewer and water <br /> systems all to City of E�erett standards. <br /> The drainage concept for this project consists of routing the developed runoff <br /> from paved surfaces within the site into a detention-wet vault located at the <br /> western portion of the site. This vault was sized to accommodate the developed <br /> conditions for the subject Kjorsvik property and the neighboring O'Conner <br /> property to the north. See the calculations included with this report. <br /> �Janc_Zimmcrman_Kjorkvik Painc_Ficld_Cottagcs_Drainagc_Rcport rcv 051806.doc u <br />