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• <br /> Tountg of Baur <br /> uM`N <br /> %o 0 lirpartmrnt of ubtir ,arks <br /> ,, tt?innn, inrnnstn <br /> '� 53 Tag <br /> KENNETH J.KOSCIK,P.E.,Director <br /> City-County Building, Room 519 <br /> 210 Martin Luther King,Jr. Boulevard <br /> 608/266-4592 <br /> 608/266-4018 <br /> February 15, 1989 <br /> TO: Dane County Agriculture, Environment & Land Records Committee <br /> FROM: Al Czecholinski, Dane County Public Works Department <br /> RE: CUP 717 <br /> 1. Clay extraction will take place only in the low-lying area, which makes up approximately <br /> 16-18 acres of the 27 acres that are shaded on the accompanying map. Soil series <br /> boundaries from the Dane County Soil Survey have been superimposed. Soils that will <br /> be excavated are: <br /> Radford (RaA) - A deep, nearly level alluvial soil overlying a buried silty <br /> soil. 0-3% slopes. <br /> Plano (PnB) - A deep, nearly level glacial soil formed in loess overlying <br /> glacial till and outwash. Subsoil consists of massive, sandy <br /> loam till. 2-6% slopes <br /> Troxel (TrB) - A deep, gently sloping alluvial soil. Subsoil consists of <br /> silt loam. 1-4% slopes. <br /> Virgil (VwA) - A deep, nearly level glacial soil formed in loess overlying <br /> glacial till and outwash. Subsoil consists of massive, sandy <br /> loam till. 1-4% slopes <br /> Excavation of these soils coupled with the proposed future land use will not increase <br /> the risk of groundwater contamination. <br /> The other soils series present include Whalan Loam (WxC2), Whalan Silt Loam (WwE2), <br /> and Rockton Silt Loam (RoC2) . These soils are steep sloping (6-30%) and are formed <br /> in glacial till overlying fractured dolomite bedrock. These soils are thin and do <br /> not contain clay--Dane County has no intention of disturbing any of these areas. <br /> Consequently, the clay extraction project, as proposed, can be done without threatening <br /> area groundwater. <br /> 2. The soil being backhauled from the Landfill will be a sandy loam till. Grain size <br /> analyses indicate that it is approximately 7-12% clay, 9-23% silt, and the remainder <br /> sand and gravel. <br /> If you have any questions, please call me at 266-4139. <br /> gdf <br /> encl. <br />