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PC Exhibit E <br /> BO I�TC"�N �- M �N K , ! NG� <br /> • Consutting Engineers & Surveyors <br /> � <br /> 2B38 Shadow Lane,Suite 200•Chaska, MN 55318-1172 <br /> Phone(952}448-8838•Fax(952)448-8805 <br /> www.bofton-r�nk.com <br /> Febn�ary 4, 2016 <br /> City of Orono <br /> Attn: Mike Gaffron <br /> 2754 Kelley Pazkway <br /> Orono,MN 55356 <br /> RE: Preliminazy Plat Application 16-3807 <br /> Orono Preserve <br /> Engineering Review#1 <br /> Dear�ike: <br /> As requested,we have compieted an engineering review of the documents submitted for the above <br /> referenced project. We offer the following observations,comments, and recommendations for your <br /> consideration: <br /> 1.0 GE.'vERAL: <br /> l.i Storimwater management for the proposed site nQeets City requirements. Pzoposed peak runoff <br /> rates wiIl be restricted to less than existing peak runoff rates. However,if the proposed design its <br /> significanfly revised during the Fnal Plat approval process,a Final Stormwater Management Plan <br /> should be submitted with the Fina1 Construction Plans. <br /> 1.2 Since common buckthorn is identified in the Wetland Delineation Report, a Vegetation <br /> Management Plan should be included with the Conservation Design Master Report, The plan <br /> should indicate schedule and methods for removal of buckthorn ovez the entire site.The Landscape <br /> Plan should also be revised to indicate areas of buckthorn removal. <br /> 1.3 Due to the siz�e of proposed disturbance,a Topsoil Management Plan shauld be included with the <br /> Final Plans to ensure adequate topsoil placement. The plan should provide direction for topsoil <br /> stripping, stockpile loca�ion(s), soil de-compaetion prior to ro-spread,certification of topeoil for re- <br /> spread meeting specifications, and placement of topsoil. <br /> 1.4 Work within public right-of-way must be coordinated with the Public Warks Depa�-pment <br /> Contractor must provide a nninimum 48 hour notice prior to any work being perfornied. Notes <br /> should be revised accordingly. <br /> 1.5 Retaining walls four feet or greater in height must be designed by a licensed Professional <br /> Engineer. Fences should be indicated for all walls four feet or greater in height,and details skiould <br /> be iuciuded as appropriate. <br /> 1.6 The applicant wil�be required to obtain Minnehaha Creek Watershed District{MCWD) approval <br /> and pernutting for their Erosion Contral, Stormwater Management,Wefland Protection, and <br /> Waterbody Crossings and Structures Rules. A copy of auy approvats or pemuts requ.ired should <br /> be submitted prior to Final Plat approval. <br /> 1.7 The applicaat will be required to obt$in Hennepin County approval and permitting for work in <br /> right-0f-way on CSAH 112.A copy of auy appmvals or permits required should be submitted prior <br /> to Final Plat approval. <br /> l.$ The applicant will be required to obtai.n a Sanitary 5ewer Bxtension permit from tb,e viinnesota <br /> Pollution Control Agency and a Water Main Extension pernut from the?12inneaota Department of <br />