05/08/1995 Council Packet - Laserfiche WebLink

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Ms. Mary Kay Wyland April 20, 1995 Page 8 southerly curve in the road. This culvert is located 60-140 feet from the street's center. With this culvert draining excess water near the southern corner of her pasture, and Pond #2 's culvert draining excess water near the northern corner of her pasture -- the property owner is doubly concerned about presently dry and functional land becoming unusable as the water table moves up as a result of the increased unnatural drainage. The position of the proposed culvert is directed by the elevation of the land. The culvert must maintain a constant gradient from Pond 4 to the edge of Basin A. The proposed culvert location is within the existing ditch draining to Basin A and represents the low point in the topography. A drainage easement should be requested for the installation of this culvert. The installation of the culvert will not contribute runoff to the property. Page 4, Paragraph 2 There are concerns that many of the proposed house pads are located too close to the wetlands and holding ponds' boundaries. In the worst cases, there is only a difference of 2-3_ feet 111 elevation between the rear of the house pad and the edge of the wetland/pond areas. It would seem logical that some of these honiesites would be plagued with waterlogged backyards or Leaking basements as these wetlands and ponds increase their water capacities from drainage due to excess rainfall or spring snow melt. Some potential problem sites are: Block 1, Lot 11 Block 2, Lots 6,7,10,11,13 Block 3, Lots 6,7,8,9,11,12,13 Block 5, Lots 1,2,3,4,5,13,14,15,20,21,22,24,25,2.9,30,36,37. There is no required setback or elevation requirement for the construction of homes near ponds and/or wetlands. The Local Water Management Plan recommends a slab or basement elevation at least two feet above the 100 -year elevation of adjacent ponds and wetlands. Page 4, Paragraph 3 In closing: The developer will be combining all the drainage from the southeast quadrant on the north side of the project and the entire western half on the south side of the project to County Ditch #25 which involves excess water flowing (and ponding) across adjacent property owners' land without permission. Three-fourths of the eastern boundary (on the south side of the project) is composed of wetlands and will be impacting tin' property owner who owns the 30 acres along that entire boundary with potential ponding and flooding problems. In not keeping the water on-site, it isgeneratinga liability issue for all adjacent property owners --- whose land will be negatively affected by creating water drainage problems that are presently nonexistent and unnecessary except to benefit the project. These property owners "OWN" their own land, and it is their right to have control of what happens to it --- and not allow the developer to depreciate their property values by instigating these water problems. The developer has the responsibility to keep his water on-site and off adjacent properties. Access to County Ditch #2 can be accomplished by re-routing water on-site where the developer's own property directly abuts this ditch along the western boundary on the north side of the project. The drainage patterns on the two portions of the proposed development will not be significantly changed from the natural drainage on the site. Storm water runoff will be retained and treated on the site and discharged at rates not exceeding discharge rates under undeveloped conditions in accordance with the Local Water Management Plan of Lino Lakes.