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CAMP DRESSER & McKEE Sheet 4 of 5 <br /> mr"M Um BOREHOLE LOG <br /> ARL-3A -� <br /> Client: City of Stockton Project Name: Stockton,CA <br /> Project Location: Austin Road Landfill Project Number. 2500-22118 <br /> m mom. Ea t; .2 E° — <br /> Sample E 8 °f Depth Elm 2 a w n Material <br /> gig <br /> 0 9 Number N¢ (ft) a ®� -, N Description <br /> m o <br /> 57.0 <br /> U_-100 ML SANDY SILT,dark yellowish brown(10 YR 4/4);silt low plasticity; <br /> sand fine grained(40%);predominantly quartz;mottled color,firm; <br /> SM moist. <br /> Y <br /> grades to POORLY GRADED SAND,dark brown(10R 4/3);fine <br /> 60/48 grained;abundant muscovite;dense;wet;occasional Fe203 <br /> stained layers. <br /> GP GRAVEL with sand,brown gravel well graded,up to 1.5•;sand <br /> X2.0 coarse to medium grained;gravel and sand rounded to / <br /> HP L-3A-GWt 5 105 subrounded;dense;wet._, _ _ _ _ _ _ _ / <br /> 60112 <br /> 17.0 •; SW WELL GRADED SAND with gravel,dark brown(10 YR 4/3);sand <br /> 110 fine to coarse grained;subangular to subrounded;low to moderate <br /> sphericity;gravel 25%,tine to coarse grained,subrounded to <br /> rounded,low to moderate sphericity;10%silt,non plastic;dense; <br /> wet;appears to be similar to 13-1 A O 113'. <br /> 60112 <br /> 115 SW SILTY SAND,dark yellowish brown(10 YR 316);sand fine grained; <br /> ML s11 non Iastic •done*:Moist. <br /> ML SILT,dark yellowish brown(10 YR 4/4);moderately plastic;low -- <br /> toughness;moderately cemented;hard;wet;rootlet voids visible <br /> 60/60 :: SM (<5%)with black coatings. <br /> As above no ementatl n Iff moist. <br /> grades to SILTY SAND,dark yellowish brown(10 YR 414);fine <br /> grained;silt plasticity none to slight;dense;moderately cemented; <br /> CL <br /> wet:abundant rootlet v (10-20%)between 16.5'and 120'. <br /> 120 LEAN CLAY,brown(10 YR 5/3);low plasticity;low toughess;very <br /> stiff;moist;abundant rootlet void with black staining throe hout. <br /> SM grades to SANDY SiLT,yellowish brown(10 YR 5/4);nonplastic; <br /> 60180 sand fine grained,30%;moderately cemented;voids continue; <br /> CL abundant Fe20 an black staining. <br /> LEAN CLAY,as at 120'. <br /> SM grades to SILTY SAND;dark yellowish brown(10 YR 316);fine <br /> 126 grained;sift 20-30%,non plastic,moderately cemented;voids <br /> present:mirror coating. <br /> ML same as 121.5'-123;stiff;wet. <br /> 60/60 <br /> -87.0 <br /> 130 SP POORLY GRADED SAND,brown(10 YR 4/3);fine grained;silt <br /> SM 10.20% non lastic•dense:wet. <br /> same as 124';dark yellowish brown(10 YR 3/4);dense;cemented <br /> 60/60 with rootlet voids;moist. <br /> cc -1 :: SM As above,no sample retained. <br /> , <br /> 0 <br /> a <br /> saso CS 010835 <br /> City of Stockton 19os55-0om <br /> J <br />