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LOG OF EXPLORATORY BORING <br /> PROJECT NUMBER 0805-114 02 BORING NO B29/VW1I <br /> • PROJECT NAME ARCO Products Company Service Station No. 2130 PAGE 2 OF 4 <br /> BY D. Foley DATE 8/11/95 SURFACE ELEV —15 ft. <br /> RECOVERY PID PENETRA- Rn LITHO- <br /> TION -k WELL <br /> a GRAPHIC DESCR:aTION DETAIL <br /> ¢ COLUMN <br /> (ft/ft) (pprn) (blws/ftl <br /> 1 011 5 00 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 400 of sample dense, damp, no <br /> hydrocarbon odor <br /> 10/15 00 25 <br /> 44 <br /> SILT(ML), brown (10YR, 513). 100% low plasticity <br /> m fines, iron-oxide staining over 20% of sample, <br /> manganese-oxide staining over 5% of sample, <br /> 10115 00 <br /> 30 hard, damp, no hydrocarbon odor <br /> 61 <br /> SANDY SILT(ML), dark yellowish brown (10YR, <br /> 35 4/4), 70% low plasticity fuses, 30% fine-grained <br /> 1 011 5 0 0 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 /> SELT(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, .ery stiff,damp, no <br /> hydrocarbon odor <br /> 40 <br /> REMARKS <br /> Boring drilled using 10-inch dumeter continuous-flight,hollow-stem auger drilling equipment and ninpled with a <br /> modified Caltforma spht-spoon sampler Boring converted to a 4-tach diameter vapor extraction well See well <br /> EQAONDetails sheet for well construction inforuon <br /> E ON ma <br />