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consu i-no eno hoers d vets f ed inc, <br /> p.o. boxj. osseo, minnesota55369 ;: (612) 425-2181 <br /> <br /> civil <br /> municipal <br /> planning <br /> environmental <br /> land surveying <br /> geolechnics <br /> <br />October 2, 1978 <br /> <br />Mr. L2oyd Schnelle, City Administrator. <br />City of Raz~sey <br />15153 Nowtben Boulevard N.W. <br />Anoka, Minnesota 55303 <br /> <br />Re: Soil Tests Report <br /> Faith Baptist Church <br /> <br />Dear Lloyd: <br /> <br />As requested, we have reviewed the above referenced soils report prepared by <br />N. C. Hoium and Associates, Inc. with respect to Soils Chapter {170.04) of <br />the City Code and offer the following comments: <br /> <br />The site of the soil borings consists mainly of Hubbard coarse sand with the <br />west edge of the site consisting of Isan sandy loam. Hubbard coarse sand is <br />classified as a Class I land with iapidly permeable soils. <br /> <br />The soils report did not reference the soil boring elevations to tJ~e United <br />States Geological Survey (U.S.G.S.) datum nor did the report provide any <br />topography over the site. However, based on the relation between the elevations <br />of t~]e soil borings, the water table and the U.S.G.S. topographic map, it <br />appears that approximately 40 percent of the site is more than six feet above <br />the water table. Chapter 170.041 of the City Code requires that 25 percent <br />of all parcels in the transitional area be available for t~be construction of an <br />adequately sized soil absorption system and the reconstruction or duplication of <br />the soil absorption system. Requirements of Class I soils are that the water <br />table remains six feet below the surface through t~]e year and that the slopes <br />do not exceed 12% in moderately permeable soils and 18% in rapidly permeable <br />soils. <br /> <br />3o <br /> <br />The percolation tests indic,ate percolati~on rates of approximately two minutes <br />per inch to less than 1/2 anc~ per mznute. Cha~pter 150.01 requires that <br />rapidly permeable soils (faster than 1/2 '~"~er mi.~) have at least six <br />inches of sandy loam with a percolation rate between five and fifteen minutes <br />per inch be placed betwaen the filter material and the existing soil. <br /> <br />keith caswell jr. ;; darrell schneider ,', richard sha <br /> <br /> <br />