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t <br /> Keith E. Nammcrsley •2• 12 August 1?c8 <br /> DELETERIOUS CONTENT <br /> The following minerals were identified from the drilling residue on site and <br /> estimated as to amount <br /> Mineral <br /> Percent Present <br /> Chert, low density in range of 2 .4 to 1 .6 S.C. <br /> Shale 1 .6 <br /> • Iron oxides 1 .0 <br /> Sandstone , friable 0.4 <br /> Clay lumps 1 . 2 <br /> Thin or elongated 0.0 <br /> g particles 1 . 5 <br /> Some of the deleterious material , such as weakly-cemented sandstone, will be <br /> reduced by normal crushing and processing. <br /> The minute amount of iron oxide, existing mostly as a thin coating in the <br /> fine-grain sand is not considered detrimental • to use as a construction aggregate, <br /> S UMNARY <br /> As compiled from the field examination, the drilling reports, glacial maps <br /> . and data and the on-site interview of the current owners, this 33-acre deposit, <br /> with proper processing, could be utilized for a variety of purposes, furnishing <br /> material ranging from bedding sands to construction aggregates of base course, <br /> asphaltic and portland cement. <br /> A local water table depth of 25 feet will have to be considered in the <br /> recovery and restoration planning. <br /> In accord with the drillers, contractors , and owners , inspection at the site <br /> during testing, the deposit as described by plat consists of 33 acres of glacial <br /> sand and gravel , with a volume In excess of 2,970,000 tons. <br /> \)‹ • <br /> Robert J Faus <br /> ect, Ph.D. <br /> Engineering Geologist <br /> • <br /> County of Dane <br /> State of Wisconsin <br /> PLe. <br /> Notary 'ublic <br /> My commission expires: �p -aV-99, <br /> • <br />