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-vLOl V� <br /> CITY OF ORONO <br /> Street Address: Mailing Address: Telephone(952)249-4600 <br /> y • <br /> 2750 Kelley Parkway P.O.Box 66 Fax (952)249-4616 <br /> �q F Orono,MN 55356 Crystal Bay,MN 55323 www.ci.orono.mn.us <br /> 'ESHO� <br /> March 14,2016 <br /> Dan Mulrennan <br /> MSI Custom Home,LLC <br /> 15101 Stone Ridge Trail <br /> Wayzata, MN 55391 <br /> Re: Building Permit Application#2016-00117 <br /> 470 Orchard Park Road <br /> Following up on the February 29,2016 letter(copy enclosed),the City received an updated survey dated 3-1-16. Staff <br /> conducted a review of the updated survey and notes Items 1(a) and 1(c) have been addressed, thank you. Please <br /> address the following items from the February 26,2016 Bolton&Menk,Inc.letter(copy enclosed)and submit two full- <br /> size copies of an updated survey for our review: <br /> 1. Show the location of the biolog ditch checks that must be installed on the swale south of the proposed house <br /> leading to rain garden#1. <br /> 2. Show the location of the erosion control blankets that must be installed on 3:1 slopes. <br /> 3. Show the location and provide detail pertaining to the turf reinforcement mat that must be installed on the <br /> rain garden weir outlets. <br /> 4. Show the location of the riprap that must be installed on the downstream end of the proposed culvert on the <br /> northwest corner of the large wetland. <br /> 5. Note on the survey that trashguards will be installed on all storm sewer aprons. <br /> 6. It is highly recommended the proposed HDPE culverts draining to rain garden#2 under the proposed driveway <br /> should be installed as RCP. Lack of cover may result in crushing of the HDPE pipe and fluctuating water levels <br /> in the rain garden may result in floating of the HDPE pipe ends. <br />