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<br />Page 1 of 2 <br /> <br />October 13, 2020 <br /> <br /> <br />Attn: Andy Turbitt <br /> <br />Project Location: 406 Main Street NW, Elk River, MN <br /> <br />Client Project #: 14284 <br />Techtron Project #: 14294 <br /> <br />Sampled by: Andy Turbitt <br />Date Sampled: 10/13/2020 <br />Date Samples Submitted to Laboratory: 10/13/2020 <br /> <br />Analyzed by: Corrie Jindra <br />Date Analyzed: 10/13/2020 <br />Number of Samples Analyzed: 3 <br /> <br /> <br /> <br />Test Report: Asbestos Bulk Materials Identification by PLM <br /> <br />Following are the results of material samples obtained for asbestos identification analysis. Samples were <br />observed at 42X magnification and suspect fibers were isolated from the bulk samples for observation <br />under polarized light microscopy. The fibers were then evaluated under polarized light microscopy for <br />extinction angle, sign of elongation, and morphology. Dispersion staining was performed using Cargille <br />dispersion oils to observe color changes of fibers at various orientations. <br /> <br />Analysis was performed according to EPA method 600/R-93/116. This method has a reporting limit to <br /><1% asbestos, in volumetric concentrations. Bulk samples were checked for the following types of <br />asbestiform minerals: chrysotile, amosite, crocidolite, anthophyllite, and tremolite-actinolite. <br /> <br />All sample details and results are listed in the table below. <br /> <br /> <br /> <br /> <br />Joshua Kranz <br />Laboratory Manager