Agenda - Council - 10/22/2002 - Laserfiche WebLink

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I I I I I I I 15153 Nowthen Boulevard NW · Ramsey, Minnesota 55303 City Hall: (763) 427-1410 · Fax: (763) 427-5543 w w w ici.ramsey, mn. us October 16, 2002 Chris Bulow Bulow, Inc. 10444 95th Street NE Monticello, MN 55330 Re: Revised Grading Plan for Mallard Ponds Office Building Dear Mr. Bulow: I have received and reviewed a revised grading plan prepared by Bogart, Pederson & Associates, Inc. dated August 28,02 (revision was not noted in title block). This revised plan is generally acceptable, however, approval is subject to the following conditions: 1) Either a catchbasin should be added on the west side of the drive entrance to intercept runoff or documentation needs to be provided showing that the Overland flow is being transmitted to catchbasin 101 and not onto 139th Lane (aCtually 140th Lane). 2) Elevation should be provided for the "grade break". 3) The north ditchline of CR116 contains an existing sump area. This ditch should be regarded such that it flows to the east. 4) Al1 storrnwater piping associated with this development must be contained within drainage and utility easements. Currently MI4 103 lies outside a drainage and utility easement. The minimum stormwater pipe size is 15 inch, other than catchbasin leads whic~h are limited to 30 feet. The plan proposes 12 inch pipe. The City will maintain the storm sewer only if it is constructed to City standards and encumbered with a drainage and utility easement. 6) This commercial site is less. than one acre in area, and is not required to obtain a Lower Rum River WMO permit. However documentation must be provided to show that the sediments pond receiving the runoff from this site contains sufficient storage volume to meet water quality requirements. A final revised plan must be submitted prior to the commencement of site grading. ~'tev~ Jafikowsl~i,ASE City Engineer S J/is -291-