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AMERICAN "% . ,RONMENTAL MANAGEMENT-" L-IPORATION <br /> Project Newark Sierra -Tank Closure Job No. 81051 Boring NSB-2 Sheet 1 of 1 <br /> vDate Started 7/17/90 at 0820 Completed 7/17/90 at 1135 Surface Elevation <br /> Total Depth 21 feet Location Slightly west of-original workplan borino B <br /> Logged By Mike Stephens Drilled By B & F Driilina - <br /> Remarks Drilled at 20° angle. SS = California Modified Solit Spoon Sampler <br /> E F D F SAMPLE G L <br /> L E E E T N B P 0 R T R R 0 <br /> E E P E Y U L E E A I E A G <br /> V T T T P M O R P N P C P SAMPLE DESCRIPTION <br /> A H E B W T G O H <br /> T E S 6 H E V I <br /> I R E C <br /> 0 1 (ft) R <br /> N N Y <br /> 0-1' CLAYEY FINE SAND some gravel,Dry, (ML). <br /> 1 1-2' FINE SANDY CLAY,medium plasticity,moist,reddish brown, (CL). <br /> 2 2-11.5' SILTY CLAY,some fine sand and,gravel,glass shards,low to medium <br /> plasticity,stiff,slightly moist,petroleum odor,olive gray, <br /> 3 (CL)- <br /> -4 <br /> — 5 <br /> Some concrete at 6.5'. <br /> — 7 <br /> — 8 � • <br /> — 9 <br /> 10 Drilling easier at 10'. <br /> 11 NSB- <br /> SS 2B 11.25 100% 11.5-13.5' CLAYEY SILT,some cement,slightly moist,petroleum odor,some <br /> 12 2A 11.5 black mottling,tan, (ML). <br /> 13 <br /> 13.5-20.5' SILTY CLAY,some sand,pieces of brick 1-2 cm in length,moist,olive <br /> 14 <br /> gray,black and red mottling throughout, (CL). <br /> 15 <br /> 16 <br /> 17 <br /> 18 <br /> 19 <br /> 20 NSB- 20.75 <br /> SS 2C to 21' 80% 20.5-21' SILTY CLAY,some fine sand,stiff,slightly moist,tan,(CL). <br /> 21 <br /> 21' End of boring. <br /> 22 <br /> 23 <br /> 24 <br /> 25 <br /> o1new79(ms2•5) <br />