Agenda - Council - 07/22/1986 - Laserfiche WebLink

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Hakanson Anderson Associates, Inc. 222 Monroe Street, Anoka, Minnesota 55303 612/42%5860 engineers and surve.yot~ Eugene J. Hakanson, P.E. James M. Winter, R.L.S. Lawrence G. Koshak, P.E. Peter R. Raatikka, P.E. July 22, 1986 Honorable Mayor & City Council city of Ramsey 15153 Nowthen Boulevard N.W. Ramsey, MN 55303 Re: Feasibility Study Drainage Problem Lot 6, Block 5, Hall Anderson Acres Dear Council Members: As requested at your June 24, 1986 council meeting, we have reviewed the feasibility of correcting the drainage problem at Lot 6, Block 5 of Hall Anderson Acres. The current problem at Lot 6, Block 5 is the failure of the on-site wastewater disposal system. Last fall the residents at Lot 6, Block 5 experienced water in their basement and installed a waterproofing system. As indicated in your June 24, 1986 council agenda, the reason for the problems is the basement floor was constructed at or near the level of the pond located on Block 6 across 159th Lane N.W. Mr. Wirtz recently checked the elevation of the septic tank and found it to be two feet eight inches below grade. This would indicate that the drain field is located at a depth below City Code requirements and could be located in the ground water table. The pond level could be lowered approximately one foot by installing 425 feet of storm sewer. However, this could lower the property values of Lots 1 and 2 of Block 6 since this pond was installed as a detention pond for a large portion of Hall Anderson Acres and Hall's Dover Acres. In addition, all other properties in the area are located above the pond level and would not benefit by lowering the pond. Therefore, we would recommend that the homeowners on Lot 6, Block 5 reconstruct their drainfield at a level which meets the City Code requirements. ci~ql a municipal · planning · soils · land surveying · landscape architecture