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Drilling Log <br /> GROUNDWATER Monitoring Well 15B Sketch Map <br /> TECHNOLOGY, INC. <br /> Protect -11 /Stockton owner Southland Corporation <br /> Location 9110 Thornton Rd. project Number 203 475 2844 <br /> Date Drilled 810189 Total Depth of Hole 62' Diameter 7.5" <br /> Surface Elevation Water Level Initial 50, 24—hour <br /> Screen: Dia. 211 Length 28' Slot Size •020" <br /> Casing: Dia. 2" Length 34' Type PVC -- <br /> Drilling Compony Sierra Fac. Drilling Method Hallow Stem_ Auger Notes <br /> Driller Anthony Schonberger Log by Paul Horton/Joe Ramal ND = Non Detectable <br /> Geologlst/Engineer License No. <br /> a a Description/Soil Classification <br /> S for Texture Structure <br /> 0 0 0.0. . Road base (coarse gravel fill) <br /> 2 CI oda.CL <br /> ... <br /> 4 � Tan, silty, fine sand (moderately well sorted , <br /> medium dense, dry, no product odor) . <br /> � ° SIM <br /> 6 <br /> (grades to medium-grained) <br /> 8 :.4 r o B <br /> of ND <br /> 10 Light brown, medium sand (poorly sorted , dense, <br /> �' moist , no product odor) . <br /> r� <br /> p' <br /> LSM <br /> (grades reddish-brown) <br /> 1214 ND Brown, silt-, veru fine sand (medium dense, moist , <br /> no product odor. <br /> 16 Q (grades less silty) <br /> Brown, very fine sand (well sorted, medium dense, <br /> 8 'SP.. moist, no product odor) . <br /> D <br /> j �:• ND Medium brown, sandy silt , medium stiff, moist , <br /> 20 j ML ' no product odor) . <br /> c <br /> od o <br /> 22 Brown, fine sand (verb° well sorted, medium dense , <br /> o ;$P'.; moist , no product odor) . <br /> O, o <br /> IdMOH 71st, 1982 — REV. G page^ of 3 <br />