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f..__._.____--.--_ _ r_..__. _.._..._. _�.._ __ <br /> APPENDIX A <br /> FIELD EXPLORATIONS AND LABORATORY TESTING <br /> FIELD EXPLORATIONS <br /> Subsurface conditions at the site werc explored by excavating ten test pits at the <br /> approximate locations shown in the Site Plan, Figure 2. The tat rits were located relative to <br /> existing site features. <br /> The ezplorations were observed by a geotectutical engineer from our ficm who maintaincd <br /> detailed logs and obtained representative sampla of the soils encountered for fu►ther exunination <br /> ... in our labontory. The soils encountered were viswlly dusified in accocdance with the system <br /> shown in Figure A-1. The logs of the explorations sre ptesented in Figures A-2 through A-6. <br /> � The elevations indicated on the logs aro buad on intecpolation of the topography on the <br /> topography map provided by Schnitzer Northwest. The dencitia noted on the logs ue bued on <br /> probing the ezposed soils with a 1/2-inch-ctiameter stal rod, the diff'icutry of digging and our <br /> � experience and judgment. <br /> LABORATORY TESTING <br /> :.�. All suil sampla were brought to our labontory for tu�ther exunination and labontory <br /> tuting. Repraentative sampla obtatned from the ezplontions were tated to detecmine fidd <br /> � moisture content. The resultt of�tie moismre contents ue presented in Figure A-7, <br /> � <br /> 6 e o E n � f a e e r � A - 1 File No. I166-006-77-f Ilq/l I1't97 <br />