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LOG OF EXPLORATORY BORING <br /> PROJECT NUMBER 0805-114 02 BORING NO 829/VW11 <br /> PROJECT NAME ARCO Products Company Service Station No. 2130 <br /> PAGE 2 OF 4 <br /> BY D. Foley DATE 8/11/95 SURFACE ELEY --15 ft. <br /> RECOVERY PID PET T - W LITHO- <br /> V k- <br /> WELL <br /> �¢ <br /> W 11. CDLUHH OESCR:�TION DETAIL <br /> (ft/ft) (ppm) (btws/ft) 9-1 � N <br /> 16/1-5 0 0 SILT(ML.), continued <br /> 34 <br /> SILTY SAND(SM), yellowish brown (10YR, 514), <br /> 20% Fines, 80% fine-grained sand, iron-oxide <br /> staining over 40% of sample dense, damp, no <br /> hydrocarbon odor <br /> 10/1 5 00 25 <br /> 44 <br /> �1 'SILT(ML), brown (IOYR. 513), 100% low plasticity <br /> fines, iron-oxide staining over 20% of sample, <br /> manganese-azide staining over 5% of sample, <br /> IOIIS 00 <br /> 30 hard, damp, no hydrocarbon odor <br /> 61 <br />� 1 <br /> SANDY SILT(ML), dark yellowish brown(10YR, <br /> 35 414), 70% low plasticity fines, 30% Cine-grained <br /> 1 011 5 00 sand, iron-oxide staining o-,er 40%of sample, <br /> manganese-oxide staining over 5% of sample, <br /> 32 dense, damp, no hydrocarbon odor <br /> SILT(ML), brown to dark brown(10YR, 4/3), <br /> 100% low plasticity fines: iron-oxide staining <br /> over 10% of sample, trace manganese-oxide <br /> staining, abundant caliche. ',cry stiff, damp, no <br /> hydrocarbon odor <br /> ItEMAltxs <br /> Boring drilled using 10-inch diameter continuous-night,hollow-stem auger drilhag equipment and sampled with a <br /> modified California spht-spoon sampler Boring converted to a 4-inch diameter vapor extraction well See Well <br /> E00NDetails sheet for wet!construction information <br /> E ON <br />