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LOG OF EXPLORATORY BORING <br /> PROJECT NUMBER 0805-147.01 BORING NO. B-31VW-1 <br /> PROJECT NAME ARCO Products Company Service Station No. 2186 PAGE 3 OF 4 <br /> BY D. Foley DATE 8/29/95 SURFACE ELEV. --15.0 ft. <br />' RECOVERY FID PENETRA- 0 (n W LITHO- WELL <br /> TION =WW GRAPHIC DESCRIPTION DETAIL <br /> O(r 4�_4� � COLUMN <br />' (ft/ft) (ppm) (btws/ft) 0 —1 <br /> 1.111.5 23 @40': as above; dark yellowish brown (10YR, <br /> 414); iron-oxide staining over 30% of sample; <br />' 48 manganese-oxide staining over 5% of sample; <br /> moist; slight hydrocarbon odor <br />' 1.311.5 24 45 945': as above; brown (10YR, 5/3); minor <br /> caliche; hard; damp; slight hydrocarbon odor <br /> 33 <br /> SANDY SILT (ML), brown to dark brown (1 OYR, <br />' 513); 75% low plasticity fines; 25% fine-grained <br /> 50 sand; iron-oxide staining over 20% of sample; <br /> 1.311.5 33 minor caliche; very stiff; damp to moist; slight to <br />' 19 moderate hydrocarbon odor <br />' SAND (SP), dark brown (10YR, 313); 100% <br /> fine-grained sand; dense; moist; slight to <br />' moderate hydrocarbon odor <br /> 1.411.5 270 55 <br /> 32 <br /> 916195 <br />' 1 SAND(SW), dark gray (5Y, 411); 95% tine-grained <br /> Q sand; 5% medium to coarse-grained sand. dense; <br /> 8/29/9560 wet; moderate 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 2-inch diameter dual completion vapor extraction well. <br /> See Well Details sheet for well completion information. <br /> E ON <br /> 1 <br />