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LOG OF EXPLORATORY BORING <br /> 16 PROJECT NUMBER 0805-147.01 BORING NO. B-4/MW-2 <br /> ' PROJECT NAME ARCO Products Company Service Station No. 2186 PAGE 3 OF 4 <br /> BY D. Foley DATE 8/29/95 SURFACE ELEV. 15.9 ft. <br /> RECOVERY FID PENETRA- <br /> � LITHO- <br /> TION a�J ?� W WELL <br /> �W GRAPHIC DESCRIPTION WELL <br /> &QW LLL c COLUMN <br /> ' (ft/ft) (Ppm) (blws/ft) W _j �f'} U) <br /> 1.0/1.5 0 @40': as above; brown (10YR, 513), iron-oxide <br /> staining over 20% of sample; very stiff; damp to <br /> t 23 moist; no hydrocarbon odor <br /> 1.2/1.5 0.5 45 @45':5 . as above; yellowish brown (10YR, 514); <br /> trace manganese-oxide staining; minor caliche; <br /> 24 very stiff; moist; no hydrocarbon odor <br /> SANDY SILT(ML), dark yellowish brown (10YR, <br /> 414); 75" low plasticity fines; 25% fine-grained <br /> 1.211.5 0 50 sand; trace medium to coarse-grained sand; <br /> iron-oxide staining over 60% of sample; <br />' 19 manganese-oxide staining over 5% of sample; <br /> very stiff; very moist; no hydrocarbon odor <br /> SILT(ML), brown (IOYR, 513); 100% low plasticity <br />' fines; manganese-oxide staining over 5% of <br /> 1.5/1.5 0 55 sample; minor caliche; minor root cavities; hard; <br /> damp to moist; no hydrocarbon odor <br />' 55 <br /> SANDY SILT(NQ.), dark yellowish brown (10YR. <br /> 414); 65% Iow plasticity tines; 35% fine-grained <br /> sand; manganese-oxide staining over 20% of <br /> 60 sample; hard; very moist; no hydrocarbon odor <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 4-inch diameter groundwater monitoring well. See <br /> Well Details sheet for well completion information. <br /> E 0N <br />