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LOG OF EXPLORATORY BORING <br /> PROJECT NUMBER 0805-147.01 BORING NO. B-8/VW-3 <br /> PROJECT NAME ARCO Products Company Service Station No. 2186 PAGE 2 OF 4 <br /> ' BY D. Foley DATE 9/7/95 SURFACE ELEV. --15.0 ft. <br /> RECOVERY PID PENETRA- N LITHO- WELL <br /> TION MWw W GRAPHIC DESCRIPTIDN DETAIL <br /> oCm E COLUMN <br /> (ft/ft) (ppm) (blws/ft) W3J N <br /> ' 1.111.5 0.0 @20': as above; brown (10YR, 513); gray staining <br /> over 5% of sample; damp to moist; no <br /> ' 17 hydrocarbon odor <br /> SANDY SILT(NII.), brown (10YR, 513); 70% low <br /> plasticity fines; 25% fine-grained sand; <br /> iron-oxide staining over 50% of sample; <br /> manganese-oxide staining over 5% of sample; <br /> 1.011.5 0.0 25 minor root cavities; very stiff; moist; no <br /> hydrocarbon odor <br /> 22 <br /> SAND (SP), olive brown (2.5Y, 413); 100% <br /> . . fine-grained sand; trace fine to medium-grained <br /> gravel; dense; moist; no hydrocarbon odor <br /> 1.3/1.5 0.0 30 <br /> ' <br /> 35 <br /> @ - 32'; 10% fine to medium gravel in auger <br /> . . returns <br /> SANDY SILT(NII.), dark yellowish brown (10YR, <br /> ' 1.2/1.5 0.0 35 414); 70% low plasticity fines. 30% fine-grained <br /> sand; stiff; moist; no hydrocarbon odor <br /> 13 <br /> SILT (ML), olive brown (2.5Y, 413); 100% low <br /> ' plasticity tines; iron-oxide staining over 10% of <br /> sample; abundant caliche; very stiff; damp; no <br /> hydrocarbon odor <br /> 40 <br /> REMARKS <br /> Boring drilled using 10-inch diameter continuous-flight, hollow-stem auger drilling equipment and sampled with a <br /> modified California split-spoon sampler. Boring converted to a 2-inch diameter dual completion vapor extraction well. <br /> See Well Details sheet for well completion information. <br /> E ON <br />