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2335 Highway 36 W <br /> St. Paul, MN 55113 <br /> Tel 651-636-4600 <br /> Fax 651-636-1311 <br /> www.bonestroo.com <br /> March 8, 2011 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: 515 Ferndale Road <br /> File No. 000139-11000-2 <br /> File No. 10-00812 <br /> Dear Melanie: <br /> We have reviewed the as-built plan for 515 Ferndale Road. The plan is dated 12-7-10. We have <br /> the following comments with regards to engineering matters: <br /> • The plan must provide greater detail showing that the intent of the original stormwater <br /> plan was met. The plan must show: <br /> o The rain garden in greater detail. <br /> o Rain garden piping and/or underdrain outlets. <br /> o Rain garden overflow. <br /> o Greater detail in the final ground contours showing proposed drainage area 2A <br /> drains to the rain garden. <br /> o That project grading did not impact the ditch along the eastern property lines <br /> which acts as an overflow for a low area east of the property. <br /> If you have any questions, please call me at (651) 604-4894 or send an email to <br /> darren.amundsen(cbbonestroo.com. <br /> Sincerely, <br /> BONESTROO <br /> Darren Amundsen <br /> Cc: Tom Kellogg <br /> John Smyth <br /> Chris Mattson <br />