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LOG OF EXPLORATORY BORING <br /> PROJECT NUMBER 0805-147.01 BORING NO, B-1/MW-1 <br /> PROJECT NAME ARCO Products Company Service Station No. 2186 PAGE 2 OF 4 <br /> BY D. Foley DATE 8/29/95 SURFACE ELEV. 15.0 ft. <br /> ' RECOVERY FID PENETRA- <br /> TION Z�J LITHO- WELL <br /> Z)W iL GRAPHIC DESCRIPTION DETAIL <br /> Q 1�1� £ COLUMN <br /> ' (ftlft) I (ppm) � (blwslft) �3J t j cc <br /> 1.57/71.5 0 CLAYEY SILT (ML), continued <br /> 25 <br /> ' SANDY SILT(ML), dark grayish brown (2.5Y, 412); <br /> 70% low plasticity fines; 30% fine-grained sand; <br /> iron-oxide staining over 3017c of sample; minor <br /> ' caliche; very stiff; moist; slight hydrocarbon odor <br /> 1.411.5 0.5 25 <br /> a 30 <br /> SILTY SAND (SM), dark grayish brawn (2.5Y, 4/2); <br /> 30% fines; 70% fine-grained sand; medium dense <br /> to dense; moist; slight hydrocarbon odor <br /> • • SAND (SP), olive brown (2.5Y, 4/3); 100% <br /> 1fine-grained sand; medium dense; moist; slight <br /> 30 hydrocarbon odor <br /> 1.4/1.5 1.0 - <br /> 29 . . <br />' SILT(NII,), olive brown (2.5Y, 413); 100% low <br /> 1.3/1.5 1.0 35 plasticity fines; iron-oxide staining over 20% of <br /> sample; minor caliche: stiff to very stiff; moist; <br />' 16 slight hydrocarbon odor <br /> 1 <br /> 40-11111 <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•l-inch diameter groundwater monitoring well.See <br /> Well Details sheet for well completion information. <br /> E 0N <br />