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From THE UULCRN RRNCH CO ~ PHONE No. : 303 984 3601 . Dec. 09 1994 12:S1PM P10 <br />-7- <br />required assistance by a doer due to the :.tcep terrain and sage- <br />brush cover. <br />The borings were advanced through the overburden soils with? <br />4-inch diameter continuous flight augers. The borings were <br />]egged by a representative of Chen and Associatco, Inc. <br />Samples of the subsurface materials were taken with 2-inch <br />and 1 3/R_inr.h spoon samplers. The samplers were driven into the <br />various strata with blows from a 140-pound hemmer falling 30 <br />inches. This test is similar to the Standard Penetration Teat <br />desr.ribed by ASTM Method D-1506. Penetration resistance values <br />indir.ate the relative density or consistency of the subsoils. <br />Depth at: which the samples were taken and the penetration resis- <br />tame values arc shown on the Logs of Exploratory Borings, <br />Figs. 2 and 3. <br />,Percolation tests ware conducted in the arcs of the proposed <br />sedimentation pond (Hale 70). The testa were conducted in 4-inch <br />diameter auger holes at the locations shown on Fig. 1 end noted <br />as P-1, P-2 and P-3• Results of the percolation teats ore shown <br />on Table II which include the depths Ctle LesLs were conducted. <br />LABORATORY TESTING <br />Samples obtained from the exploratory borings were ezemined <br />and visually classified by thre project engineer. Laboratory <br />testing performed on selected samples includes standard property <br />tests such as natural moisture contents and dry unit weights, <br />grain-sloe analyses, and liquitl and plastic limits. Addition- <br />ally., swe]1-consolidation tests, direct shear tests and falling <br />f-hen &Associates <br />