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LOG OF EXPLORATORY BORING <br /> PROJECT NUMBER 0805-147.01 BORING NO, B-7/VW-2 <br /> PROJECT NAME ARCO Products Company Service Station No. 2186 PAGE 3 OF 4 <br /> BY D. Foley DATE 917195 SURFACE ELEV. --15.0 ft. <br /> RECOVERY PID PENETRA- �Cm W LITHO- WELL <br /> TION Sw uW GRAPHIC DESCRIPTION DETAIL <br /> O¢, E COLUMN <br /> cc <br /> (ft/ft) (PPM) (blws/ft1 cW's3.w-1 <br /> 1.0/1.5 86.4 @40': as above; light olive brown (2.5Y, 513); <br /> iron-oxide staining over 25% of sample; abundant <br /> 19 caliche; very stiff; moist; slight to moderate <br /> hydrocarbon odor <br /> 1.111.5 31.6 45 @45': as above; dark grayish brown (2.5Y,412); <br /> iron-oxide staining over 15% of sample; minor <br /> 48 caliche; hard; damp to moist; slight hydrocarbon <br /> odor <br /> SANDY SILT(ML), dark brown ( 0YR, 313); 65% <br /> low plasticity fines; 35% Fine-grained and: <br /> iron-oxide staining over 20% of sample; gray <br /> sunning over 5%of sample; minor root cavities; <br /> 1.1/1.5 14.7 50 stiff; moist; slight to moderate hydrocarbon odor <br /> 12 <br /> SILTY SAND(SM), olive brown (2.5Y, 413), 15% <br /> fines; 85% fine-grained sand; medium dense. <br /> moist; slight hydrocarbon odor <br /> 1.211.5 14.2 55 <br /> 24 <br /> Ll <br /> 9/7/95 LSAND (SP), dark gray (5Y, 411); 100% tine-_rained <br /> _ sand; medium dense; wet; slight hydrocarbon <br /> Q odor <br /> 9/7/95 <br /> 60 J <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 samples. Boring converted to a 2-inch diameter dual completion vapor extraction well. <br /> E00NSee Well Details sheet for well completion information. <br /> E ON <br />