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Ms. Katie Larsen June 2, 2016 Page 3 \\mspfsv02.lps.local\Studios\Active Projects\CLL16007 - Clearwater Creek Business Park in Lino Lakes MN\From Others (Original Data)\20160602 Engineering Review Lino Lakes United Properties.docx 20. Include additional drainage arrows within south parking lot to verify slopes do not exceed 4%. 21. The applicant shall provide a typical section for the proposed parking lot /access. STORMWATER MANAGEMENT We reviewed the Stormwater Drainage Report for United Properties, dated May 16, 2016, and provided by Plowe Engineering, Inc. and have the following comments: 1. Provide drainage area maps for existing and proposed conditions. 2. The HydroCAD total drainage areas between existing and proposed conditions do not match. 3. The stormwater treatment basins shall be separate for the site and street impervious areas. FLOODPLAIN 1. Project affects the FEMA floodplain. The applicant shall obtain a Letter of Map Revision and provide the application to City. 1. The applicant shall provide an exhibit showing no net fill in the floodplain. WETLANDS Rice Creek Watershed District is the LGU to review and approve the wetland delineation. Thus we have not reviewed for the Wetland Conservation Act (WCA). 1. The project proposed impacts to existing wetlands it is anticipated that a mitigation plan will be required. The applicant will need to receive RCWD approval of wetland delineations and buffers. ENVIRONMENTAL 1. An AUAR was completed for the project area in 2005 and updated in 2015. The review is being addressed by the City’s planning consultant. See the transportation section for pertinent comments. WATER SYSTEM 1. Gate valve, hydrants and fitting locations need to be labeled with station and offset. 2. The proposed hydrant spacing exceeds 300-foot minimum (greater than 500 feet) and should be reviewed by the City’s Deputy Director of Fire.