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Total depth of borings 40 ft. Diameter of borings 6 in. Data drllfad, 1D/21/91 <br /> , <br /> Casing diameters N/A _ Lengiib NZA Slot size, N/A_ <br /> Screen d]ameter� N/A Lengths N/A Maternal types N/A <br /> _ g <br /> Drilling Companyi Westex Drillers Chris & Tim <br /> Method Useds Hollow--stem Auger Field Geologlat, Claudio <br /> Signature of Registered Professional: <br /> Registration Nos 4313 States Calif. <br /> } <br /> I}EPTII SAMPLE 3B P.LD. USCS DESCRIPTION Wt],L <br /> NO. -i CODE I CONST. <br /> a Asphalt. <br /> 2 <br /> 4 ' <br /> 0 Sandy silt, rine—grained sand, light brown, slightly aarno. <br /> S-5 21Pprnv SM very stiff. ' ;�.•• <br /> 6 . <br /> 10 P S-10 41 0 MIL Silt some clay, light brown. slightly damp, very stiff. <br /> ., . <br /> 12 <br /> 14 <br /> SM <br /> 0 Silty sand, fine-- to Coarse—grained sand, light brown, : <br /> 5-15 55 ppmv slightly domo, very dense. <br /> 16 <br /> 0 ML Silt trace clay and fine—grained sand, light brown, <br /> 20 S-20 38 pPmv slightly domo, hard. <br /> (section continues downward) <br /> `dWAkff` LOG OF BORING: B-12 PLATE <br /> FAWWWWWR-- ARCO Service Station No. 548 <br /> 1612 Hammer Lane 20, <br /> PROJECT NO. 30004-4 01U4oi A <br /> Stockton, California <br /> x�: <br />