04/13/2016 P&Z Packet - Laserfiche WebLink

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& Assocengineering • planning • environmental • construction Memorandum To: Katie Larsen, City Planner From: Diane Hankee PE, City Engineer Date: April 4, 2016 Re: North Oaks Company PUD Concept Plan WSB Project No. 2988-080 701 Xenia Avenue South Suite 300 Minneapolis, MN 55416 Tel: 763-541-4800 Fax: 763-541-1700 We have reviewed the Concept Plan for North Oaks PUD in Lino Lakes, MN prepared by Sathre-Bergquist, Inc. received on March 14, 2016. The following comments should be incorporated in the preliminary plat design, and a written response to comments provided: GRADING, EROSION AND SEDIMENT CONTROL 1. There are no erosion and sediment control comments at this time, a review will be completed once the preliminary plat is submitted. 2. With the preliminary plat submittal a geotechnical evaluation shall be submitted, and it should include also the recommended infiltration rates and R-values. STORMWATER MANAGEMENT 1. A stormwater review will be completed with the preliminary plat submittal. 2. The City of Lino Lakes Stormwater Ordinance will govern the design requirements for infiltration, rate control and stormwater quality. The watershed, VLAWMO is not a permitting authority for stormwater. 3. The minimum storm sewer pipe size shall be 15-inch. 4. Wilkinson Lake is an impaired water with a TMDL implementation plan. The implementation plan shall be coordinated with this project through VLAWMO. 5. A 50 foot buffer is required and to be shown around lakes and wetlands. FLOODPLAIN 1. A Base Flood Elevation is required to be determined, using detailed methods acceptable by the Federal Emergency Management Agency (FEMA). This will be used in setting the low floor elevations and for #2 below. 2. A FEMA Letter of Map Revision (LOMR) is required for this site. It is highly recommended that the LOMR process be started immediately with a Conditional Letter of Map Revision application.