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F <br /> , 2335 Highway 36 W <br /> St.Paul,MN 55113 <br /> Te1651-636-4600 <br /> Fax 651-636-1311 <br /> www.banestroo.com <br /> ]une 8, zo�o � Bonestroo <br /> Melanie Curtis <br /> Planning and Zoning Coordinator <br /> City of Orono <br /> Post Office Box 66 <br /> Crystal Bay, MN 55323 <br /> Re: 3980 Cherry Avenue <br /> File No. 000139-10000-1 <br /> File No. 10-3463 <br /> Dear Melanie: <br /> We have reviewed the revised grading plan for the proposed house at 3980 Cherry Avenue. The <br /> plan is dated 5-17-10. We have the following comments with regards to engineering matters: <br /> • We are concerned with the lack of drainage in the backyard. We would recommend <br /> providing at least a 1% slope through the backyard. A sketch is attached to provide <br /> guidance on how this might be achieved. Note that the house elevation may need to be <br /> raised 0.3-0.5 feet with the proposed contours. <br /> • The southeast downspout should be piped to the end of the retaining wall to minimize <br /> the amount of runoff crossing the east property line. <br /> • This project will disturb more than 100 CY of material. Sediment and erosion control <br /> information meeting the requirements of Orono's City Code 79-7(c)(2) must be <br /> submitted. The minimum $2000 sediment and erosion control financial security should <br /> be required of the owner for this permit. <br /> If you have any questions, please call me at(651) 604-4894 or send an email to <br /> darren.amundsenCa�bonestroo.com. <br /> Yours very truly, <br /> �. "i�'��� <br /> Darren Amundsen <br /> cc: Tom Kellogg <br />