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KLEIN.-ELDER <br />File No. 24-2206-01.A06 <br />January 2, 1991 <br />11, 1990 and the County's Notice to Proceed, dated September 17, <br />1990. <br />This report contains the following information: <br />1. Plot plan and vicinity map showing the <br />approximate locations of the field explorations <br />performed for this investigation. <br />2. Logs of Test Borings. <br />3. Three cross sections based on our test borings. <br />4. Discussion regarding permeability of in situ <br />and remolded soils. <br />5. Discussion regarding landfill liner <br />construction alternatives using on-site soils. <br />SITE CONDITIONS <br />At the time of our field explorations, the investigation area was <br />relatively rolling hillsides surrounding the active landfill area. <br />Existing structures within this fenced area consisted of a <br />maintenance shop, manager's residence, and guard shed. Underground <br />utilities or any other buried objects at the site are not known to <br />our firm. <br />FIELD EXPLORATIONS <br />The field explorations for this investigation were performed <br />between October 23 and 251 1990 and consisted of drilling 7 test <br />borings to depths ranging from approximately 30 to 65 feet below <br />existing ground surface. Depths of borings were selected to <br />correspond to 10 feet below the bottom of the landfill. The test <br />borings were drilled with a truck -mounted drill rig using 8 -inch <br />diameter, hollow -stem, continuous -flight augers. Continuous logs <br />Copyright 1991 KLeinfelder, Inc. 2 <br />