Laserfiche WebLink
AFrcIuD:� E. <br /> FIcLD cY.?LOR�.TION <br /> E-9468 <br /> (° Our field exploration was performed on November 10, 2000. Subsurface conditions at <br /> [ the site were explored by drilling one boring to a depth of forty one (41) feet and two <br /> borings to eleven feet below the existing grade. The borings were drilled by Associated <br /> �� Drilling subcontracted to ECI, using a truck-mounted drill. <br /> Approximate boring locations were determined by pacing from site features. The loca- <br /> tions of the boring.: should be considere� accurate only to the degree implied by the <br /> method used. These approximate Iocations are shown on the Boring Location Plan, Plate <br /> Z. <br /> The field exploration was continuously monitored by a engineer from our firm who <br /> classified the soils encountered, maintained a log of each boring, obtained representative <br /> samples, measured groundwater levels, and observed percinent she features. Samples <br /> were visually classified in accordance with the Unified Soil Classification System, which <br /> is presented on Plate A1, Legend. Representative soil samples were placed in closed <br /> containers and returned to our laboratory far further examination and testing. <br /> Logs of the borings are presented on Plates A2 through A6. The final logs represent our <br /> interpretations of the field logs and the results of the laboratory examination and tests of <br /> field sampies. The stratification lines on the logs represent the approximate boundaries <br /> between soil types. In actuality, the transitions may be more gradual. <br /> The borings were drilled using hollow stem augers. In each boring, Standard Peneuation <br /> Tests (SPT) were performed at selected intervals in general accordance with ASTM Test <br /> � Designation D-1586. The split spoon samples were driven with a one hundred forty <br /> (140) pound hammer freely falling thirry (30) inches. The number af blows required to <br /> � drive the last twelve t12) inches of penetretion are called the "N-value". This value helps <br /> to characterize the site soils and is used in our engineering analyses. These results are <br /> ( recorded on the boring logs at the appropriate sample depths. <br /> L. <br /> r' <br /> `. Erth Conw�lhnb� Ine. �;�� <br /> i�� <br /> �t <br /> I <br /> L <br />