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PROJECT NAME: Dupont/Lodi BORING e: MW-18R <br /> P ROJ ECT 0: 1813G DATE DRILLED: 11/9/87 <br /> i <br /> EXCELTECH EXPLORATORY BORING LOG L.O(3GED BY: K P <br /> 1 z <br /> ►- .j _ O . <br /> o <br /> o 11 on <br /> o W o6 a <br /> - <br /> a ` w p SOIL DESCRIPTION �i � <br /> w tai = I a <br /> b O r "` a <br /> LU <br /> m <br /> -logging drill cuttings top 5-10 feet <br /> 0 ML SANDY SILT; yellowish brown (10YR 5/4), very fine to <br /> fine grained, subrounded sandy silt, sand(20-30%), <br /> 4q 1 clay (20%), damp <br /> � <br /> 2 - <br /> 3 - <br /> 4 34 <br /> 5 <br /> 6 ' <br /> SP drilling penetration rate change <br /> n 9 <br /> 10- <br /> A <br /> r 11 <br /> 0 12 SAND; light yellowish brawn (10YR 6/4), fine to med- <br /> itn grained, subangular-subrounded sand, friable, <br /> 13 2-3% mafic minerals (mostly gold mica) danp, mad- <br /> 4 iuII dense, no product odor <br /> � 14 IO <br /> 16 <br /> -- 15 A 23 <br /> f CL SILTY CLAY: brown (10YR 5/3), silt (20-25%), median <br /> 16 to low plasticity, minor very fine sand ( 5%) , 1% <br /> open rootholes, very cam'cn iron stains filling <br /> 17 holes, moist , f irm to st if f, no product odor <br /> 18 <br /> CL SILTY CLAY; dark grayish brown (10YR 4/2) , silt (20%) <br /> 19 low to medium plasticity, 1% open rootholes, minor <br /> 14 iron staining, black staining in fractures, caTmn <br /> 20 B 41 to v(3t°y _-omr n calm layers, sarrple ncderrately <br /> r indurated, moist, stiff, no product odor <br /> 21 <br />