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Ms. Katie Larsen <br />June 6, 2014 <br />Page 2 <br />2. The proposed sanitary sewer along Old Birch needs to maintain a separation from the <br />south right of way line that is a minimum of a 1:1 ratio of the depth of the pipe. <br />3. The east/west portion of Old Birch Street, from Birch Street to Pheasant Run South will <br />need to be reconstructed as part of this project. <br />4. The watermain must be Ductile Iron Pipe (DIP). <br />5. There are a significant number of watermain lowerings shown on Pheasant Run South. <br />The watermain should be lowered to a consistent bury depth and just stay deeper through <br />this area to avoid all of the bends and fittings. <br />6. The sanitary sewer service for Lot 2 Block 3 appears to have a 45 degree bend within the <br />proposed street. The service must not have any bends from the main to the lot. Once <br />within the lot, the service may have a bend if there is also a cleanout at that location. <br />7. Lots with sanitary services longer than 100 feet in length will require cleanouts. <br />8. Sanitary sewer manhole No. 6 includes an interior drop of 6.45 feet. The maximum drop <br />allowed is 18-inches. The grade on the sanitary pipe from manhole No. 13 to manhole <br />No. 6 needs to be adjusted accordingly or an outside drop can constructed. No inside <br />drops will be permitted. <br />9. The minimum storm sewer pipe size is 15-inches in diameter. <br />STORMWATER MANAGEMENT <br />1. Permits for wetland impacts and replacement plan must be approved by RCWD. <br />2. Note that the HydroCAD model is not a FEMA-approved model. To obtain a LOMR a <br />RAS model will need to be completed to demonstrate no major impacts to the floodplain. <br />If you or the applicant has any questions regarding these comments, please contact me at 612- <br />360-1298 or dhankee@wsbeng.com. <br />PA <br />