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• The Honorable Chairman and Planning Commission <br /> December 16, 1998 <br /> Page 3 <br /> • We have indicated to the developer's engineer that each of the storm sewer <br /> collection points and ponds need to have emergency over flows indicated <br /> such that in the case of a plugged catch basin the runoff will work its way to <br /> the ponds without endangering any of the buildings on the site. The <br /> developer's engineer has indicated that he has thought about this but it was <br /> difficult to show on this large scale, but they will provide that information in <br /> greater detail in the future. <br /> • There is a small amount of grading shown off of the project site on a piece of <br /> property line between the development and Trunk Highway 169. Provisions <br /> should be made to either get permission from the property owner for this work <br /> or revise the development plan in such a way that this grading is not needed. <br /> D. PRELIMINARY UTILITY PLAN <br /> • The preliminary utility plan accurately reflects the city's trunk sanitary sewer <br /> and water construction plans with one minor exception. The 24-inch sanitary <br /> sewer, which comes from the lift station, will extend north into the <br /> development then easterly to the ring load. Currently the utility plan is <br /> showing it going directly east through private property. The developers have <br /> acknowledged that and they will make this change in their plans and will <br /> • provide the necessary easement for this sanitary sewer <br /> • The lateral sanitary sewer shown on the plan is adequate to provide service <br /> to all of the lots in the development. Easements will need to be provided over <br /> the portion of the sanitary sewer through the parking lots of the major tenants <br /> and the private portion of the ring road. <br /> • We have reviewed the watermain layout with Bruce West, Fire Chief, and <br /> Bryan Adams of the Elk River Municipal Utilities. Generally, the watermain <br /> serving the two major tenants will need to be looped and more hydrants <br /> placed around the buildings. It is also possible the fire chief will want looping <br /> and hydrants along TH 169, depending on the intensity of development. <br /> Since all buildings will have to go through a site plan review, additional more <br /> specific comments will be given at that time. <br /> • The storm sewer that drains the public road within the development will be <br /> publicly owned and maintained. All other storm sewers leading from the <br /> sedimentation ponds to the wetlands and draining the parking lot and private <br /> ring road will be privately owned and maintained <br /> E. ENVIROMENTAL ISSUES <br /> • The Environmental Assessment Worksheet for this project has been review <br /> and signed off by the city and mailed to the appropriate agencies. The period <br /> for public comment ends on January 28, 1999. <br /> • The Wetland report has been reviewed by city staff and send out for joint <br /> notification. It includes a replacement plan for wetlands that are to be filled <br /> Howarc R. Green Company <br /> o.proj./112-1601.dec CONSULTING ENGINEERS <br />