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CCP 02-19-2002
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CCP 02-19-2002
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<br />e <br /> <br />e <br /> <br />e <br /> <br />Gatewav Business Center - Arden Hills. MN <br /> <br />EAW <br /> <br />September 2001 <br /> <br />20. <br /> <br />a depth of 12.5-14 feet below grade at one of the borings, The swamp deposits at this <br />location appear to have been in a lower elevation area which was filled during <br />previous development of the property, The swamp deposits are very soft, based on N- <br />values, <br /> <br />Glacial till soils are the predominant soils at this site, The upper portion of the till is <br />weathered at some boring locations, The till consists of sandy lean clay, clayey sand <br />and silty sand. The clayey glaeial till soils are typically soft to stiff, based on N- <br />values, and the silty sand glacial till is medium dense to very dense. The glacial till <br />soils contain gravel. Some of the glacial till soils also include cobbles and boulders. <br /> <br />Alluvial soils are present at the transition between the topsoil and glacial till and <br />layers of coarse alluvium also exist within the glacial till. The coarse alluvial soils <br />consist of sand with silt and silty sand, Based on N-values, the coarse alluvial soils <br />vary from loose to very dense. The coarse alluvial soils contain varying amounts of <br />gravel. Cobbles and boulders can also be present within coarse alluvial soils, <br /> <br />Some fine alluvium and mixed alluvium are also present within the soil profile, The <br />fine alluvial soils consist of lean clay and the mixed alluvial soils consist of silty sand <br />and clayey sand, <br /> <br />According to the Phase I Environmental Assessment, one of the twelve geoteehnical <br />soil borings eontained 12 feet of fill comprised of sand and cinders, The source of the <br />cinders is unknown and represents a potential source of contamination, According to <br />the Soil Boring Report, it is unlikely that these materials were placed and compacted <br />in a controlled manner. A Phase II EA was completed in May 2001. See Section 9, <br />Potential Conflicts Involving Environmental Matters, for a more detailed discussion. <br /> <br />Proposed slopes will not exceed 3:1 (horizontal to vertical ), Retaining walls will be <br />used in some areas to maintain slopes 3: I or flatter and to avoid wetland impact. Best <br />Management Practices will be used for control of erosion and sedimentation, Erosion <br />control measures will include silt fence, rock construction entrances and silt sack inlet <br />filters, <br /> <br />Solid wastes; Hazardous Wastes; Storage Tanks <br />a. Describe types, amounts and compositions of soiid or hazardous wastes, including solid and <br />animal manure, sludge and ash, produced during construction and operation. Identify method <br />and location of disposal. For projects generating municipal solid waste, indicate if there is a <br />source separation plan; describe how the project will be modified for recycling. If hazardous <br />waste is generated, indicate if there is a hazardous waste minimization plan and routine <br />hazardous waste reduction assessments. <br /> <br />All existing buildings on the site will be razed and hauled to a lieensed demolition <br />landfill. Hazardous materials, if any, will be removed by licensed professionals and <br />disposed of as required by law. A Phase I Environmental Assessment will be <br />conducted on the existing ATS Steel buildings prior to acquisition, The demolition <br /> <br />Page 21 <br />
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