02/12/2014 P&Z Packet - Laserfiche WebLink

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Ms. Katie Larsen February 7, 2014 Page 2 Street and Trail Comments: 1. Cedar Street will need to be overlaid as part of this development. 2. Turn lanes at Cedar Street are also required per Anoka County. 3. Trails will be reviewed with the final design. 4. Maintenance of the center median at CSAH 54 and Street A will be required from the neighborhood. Documentation confirming Homeowners Association maintenance of this median will be required. Sanitary Sewer and Watermain Comments: 1. The sanitary system has been revised to include a 10-inch line at minimum grade to serve future development to the west via Street A. The sanitary system also needs to accommodate future development to the south and southwest. The proposed lift station design will need to be coordinated with respect to flow and elevation to serve these areas in the future. Due do wetlands south of the site, the lift station may be located at Street E for the future extension. Please reference the enclosed attachment. 2. There needs to be 16" watermain from the north end of the site to the southwest end. 3. All watermain shall be DIP Class 52. 4. Drainage and utility easements generally accommodate the proposed utilities. Once the final utility plan is completed, the easements will be reviewed with the final plat. Storm Sewer and Drainage Comments: Prior to plat approval, the following items must be addressed: 1. Low floors are 4' above the highest anticipated water table based on the geotechnical data submitted. 2. Low floors should be 2' above the HWL, there are various areas where it is only 1.5' above. 3. Check that low floors are 1' above the EOF's such as Block 9 and Lot 15 Block 2. 4. The applicant must quantify the water quality benefits provided by the proposed ponds (based on Rice Creek Watershed District Rules) and include this information in the stormwater management plan for the development. 5. Calculations for the water reuse system must be provided for review and approval. In general, calculations must consider irrigation demand, reservoir capacity, and stormwater runoff supply and must address how these components are interrelated to provide volume control consistent with RCWD Rules. 6. Calculations for the 10-day, 100-year snowmelt event must be provided that demonstrate no increase in peak discharge rates from the existing conditions. Prior to construction, the following items must be addressed: 7. Responsibilities for maintaining stormwater management facilities must be formally documented in an agreement and provided to the City prior to construction. 8. All necessary permits must be obtained from others including Rice Creek Watershed District, MPCA, Department of Health, and the County prior to construction. 9. Utility plans and storm sewer design must be provided for review and approval prior to construction. C:\Users\dawn.buggeWppData\Local\MicrosoR\Windows\Temporary Intemet Fi1es\Content.0ut1ook\M3J3E42P\Memo - klarsen - Northpoint - 020714.dm