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LOG OF EXPLORATORY BORING <br /> BORING NO. R-11MW-1 <br /> PROJECT NUMBER 0805-147.01 <br /> PROJECT NAME ARCO Products Company Service Station No. 2186 PAGE 1 OF 4 <br /> SURFACE ELEV. 15.0 ft. <br /> BY D.Foley DATE 9/29195 <br /> WELL <br /> RECOVERY FID PENETRA- W LITHO- <br /> TION J GRAPHIC DESCRIPTION DETAIL <br /> t7�LLI CLZ COLUMN <br /> ift/ft) (ppm) (btws/ft) -� <br /> ASPHALT41 <br /> FILL, BASEROCK <br /> SR.T(ML), brown (10YR, 513); 100% low plasticity <br /> tines; dry; no hydrocarbon odor <br /> f <br /> I'011.5 0 5 C'5': as above; yellowish brown (10YR, 514); <br /> manganese-oxide staining over 5% of sample; <br /> 52 minor caliche; hard; damp; no hydrocarbon odor <br /> i <br /> 1.0/I.5 0 10 @10': as above; very stiff; no hydrocarbon odor <br /> 28 <br /> 1.4/1.5 0 15 C�15': as above; brown (10YR, 5/3); iron-oxide <br /> staining over 40% of sample; manganese-oxide / <br /> 36 staining over 5% of sample. hard: clamp. no <br /> hydrocarbon odor <br /> CLAYEY SILT(ML), grayish hrown (2.5Y, 5/2): <br /> 100% low plasticity lines: iron-oxide sutining <br /> over 5% of sample; very stiff; clamp to moist; no y <br /> 20—Ahydrocarbon odor / <br /> RF-MARKS " <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 convened to a 4-inch diameter groundwater monitoring well.see <br /> E <br /> Well Details sheet for well completion infotmetion. <br /> ON i <br /> l� <br />