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CAMP DRESSER& McKEE Sheet 3 of 5 <br /> MM 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 /> c <br /> Sample c ® Depth 2 o nil C Material <br /> co <br /> E Number � (ft.) -Crn I s c7 Description <br /> a: m o <br /> -- -17.0 C <br /> 60 CH <br /> 65 ML Begin continuous sampling. <br /> SANDY SILT,brown(10 YR 4/3);silt non-to slightly plastic;sand <br /> fine grained;30-40%sand;micaceous;firm;no recovery-steel <br /> plate obstructed sampler,moist. <br /> 0 <br /> 70 SM SILTY SAND,brown(10 YR 413);poorly graded;fine grained, <br /> 60%;silt low plasticity;no toughness;medium dense;occasional <br /> streaks of white prec.;moist. <br /> 60/36 SP POORLY GRADED SAND,dark yellowish brown(10 YR 4/6);fine <br /> to medium grained;medium dense;dry. <br /> 75 <br /> SP POORLY GRADED SAND,dark yellowish brown(10 YR 4/6); <br /> serveral horizontal lenses of dark minerals too fine grained to <br /> 60/36 identity;trace coarse sand;medium dense;dry. <br /> RL-3A so :: SP As above,loose to medium dense;tip a 85'wet,trace coarse <br /> sand and gravel(max 1/2');gravel mostly quartz but some chert, <br /> volcanics;coarse sand and gravel<10%. <br /> 60/24 <br /> -42. Groundwater encountered at 84.6'. <br /> 85 <br /> •' SW grades to WELL GRADED SAND,fine to coarse grained. <br /> 60136 ML suban ular t subrounded•tracegravel1/4••medium dense•wet. <br /> SILT,brown(10 YR 413);low plasticity;toughness,no dilatancy/ <br /> firm to hard;moist;rootlet voids with black staling,slightly wx'd. <br /> .47.0 <br /> HP A RL-3A-GWE90 <br /> RL-3A-90/9 SP grades to POORLY GRADED SAND,brown(10 YR 5/3);fine to <br /> medium grained;subangular to subrounded,10%sift,non plastic, <br /> 60/36 ML medium dense,saturated;abundant muscovite;Fe203 stained <br /> lamination or nta 9 <br /> SILT,brown(10 YR 5/3);nonplastic;firm;moist;Fe203 stained <br /> c laminations persist, <br /> g 95 SP POORLY GRADED SARD,brown(10 YR 5/3);fine to medium <br /> MLrained suban ular to subrounded•10%nonplastic fines. <br /> g SM grades to SILT,brown(10 YR 513);non plastic,cemented ® c <br /> moderate t stron •rootletvoids with black staining. <br /> 60148 grades to SILTY SAND,light yellowish brown(2.5 Y 613);sand 8 <br /> fine grained;silt low plasticity,mottled with black precipitate along to <br /> w <br /> voids,bed surface. U ,°, <br /> io <br /> -57.0 As above,color becomes brown(10 YR 5/3). U <br />