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LOG OF EXPLORATORY BORING <br /> PROJECT NUMBER 0805-147.01 BORING NO. B-4/MW-2 <br /> PROJECT NAME ARCO Products Company Service Station No. 2186 PAGE 1 OF 4 <br /> BY D. Foley DATE 8/29/95 SURFACE ELEV. 15.9 ft. <br /> RECOVERY Ftp PENETRA- 1 <br /> W LITt10- `.1EL1. <br /> Tl ON �,..�-1 F J GRAPHIC DESCRIPTION OETAIL <br /> W <br /> Q7 mow-„ CL <br /> COLUMN <br /> (it/ft) (ppm) (btwslft) ca <br /> ASPHALT <br /> )F`CLL, BASEROCK <br /> .SILT(ML), very dart:grayish brown (10YR, 3/2); <br /> I' <br /> 100% low plasticity tines; dry to damp; no <br /> hydrocarbon odor <br /> i <br /> 1.0/1.5 0 5 @5': as above; brown (10YR, 513); iron-oxide <br /> staining over 25% of sample; abundant caliche; <br /> 40 hard; damp; no hydrocarbon odor <br /> 1.2J1.5 0 10 @10': dark yellowish brown (10YR, 414); no <br /> hydrocarbon odor <br /> 37 <br /> 1.411.5 0 15 @ 15': as above; trace manganese-oxide staining, <br /> trace caliche; minor root cavities; very stiff; no <br /> 14 hydrocarbon odor <br /> 1 f <br /> CLAYEY SILT(ML), light olive brown (2.5Y. 5/3): f <br /> 100% low plasticity ernes: iron-oxide staining <br /> over 5% of sample; very stiff; damp, no <br /> hydrocarbon odor <br /> 20 ' <br /> IZENIARKS <br /> Boring drilled using 10-inch diameter continuous-flight,hoilow-stem auger drilling equipment and sampled with a <br /> modified California split-spoon sampler. Boring converted to a 4-inch diameter groundwater monitoring well.Ser <br /> EQONwell Details sheet for well completion information. <br /> E ON <br />