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0 0 <br /> Key to Log of Borings <br /> ° o a ^ui o In-Place <br /> Z <br /> L <br /> m p m U C7 Moisture Dry <br /> a o LL " SOIL DESCRIPTION of _ <br /> p E (%dry Density <br /> M m a° M) o weight) (pcf) <br /> 0 rn <br /> 0 <br /> Shelby Sampler <br /> Thin walled, 3 in. diameter, <br /> 3 ft. long, hydraulically advanced Groundwater V <br /> encountered durin <br /> Modified California sampler drilling <br /> (3 in. O.D. split-barrel sampler <br /> with brass liners)driven by a <br /> 140 Ib. hammer with a drop of 30 in. Groundwater V <br /> 5 after drilling <br /> Bulk sample <br /> Loose soil removed for testing <br /> Seepage <br /> Standard Penetration test(SPT)sampler <br /> (2 in. O.D. split-barrel sampler) <br /> driven by a 140 Ib. hammer with <br /> a drop of 30 in. <br /> 10 <br /> California Sampler <br /> (2.5 in. O.D. split-barrel sampler <br /> with brass liners) driven by a 140 Ib. <br /> hammer with a drop of 30 in. <br /> Shaded area denotes sample taken <br /> Hand Sampler(2.5 inch O.D. driven by hand) <br /> 15 <br /> Continuous Core Sampler <br /> 94 mm Christianson Sampler <br /> 47 Approximate blows per foot. <br /> 20 Solid line denotes soil or lithologic change <br /> Dashed line denotes gradational or approximate soil or <br /> lithologic change <br /> Heavy line denotes termination of boring <br /> NSR= No sample recovered <br /> D.S. = Disturbed sample <br /> 25 <br /> Earth Systems Consultants Lathrop Effluent KEY TO LOG OF BORINGS <br /> Northern California Percolation Ponds <br /> �' Lathrop,California Figure 3 <br />