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LOG OF EXPLORATORY BORING <br /> PROJECT NUMBER 0805-114.02 BORING NO B27/AS2 <br /> PROJECT NAME ARCO Products Company Service Station No. 2130 PAGE 2 OF 4 <br /> 13Y D. Foley DATE 9/10/95 SURFACE ELEV --15 ft. <br /> RECOVERY PID PENETRA- N LITHO- <br /> WELL <br /> TION MU1 alp � COLUMPHIC <br /> N DESCRIPTION DETAIL <br /> (ft/ft) (Ppm) (btws/ft) -1 <br /> fn <br /> CLAYEY SQ.T(ML), continued <br /> 22 <br /> SANDY SILT(ML), brown (10YR, 5/3), 80% low <br /> plasucity fines, 20% fine-grained sand, <br /> iron-oxide staining over 20% of sample, abundant <br /> caliche medium dense, damp, strong hydrocarbon <br /> odor <br /> 1 4/I 5 242 25 <br /> 27 <br /> SELTY SAND (SM), brown to dark brown (10YR, <br /> 413), 20% fines, 80% fine-grasped sand. <br /> Bron-oxide staining over 20% of sample, minor, <br /> cahche, dense, moist, strong hydrocarbon odor <br /> 14/15 240 30 - <br /> 42 . <br /> I <br /> SANDY SILT(ML), dark yellowish brown(10YR, <br /> 0 9/1 5 275 4/4), 75% low plasticity fines, 25% fine-grained <br /> 35 sand, manganese-oxide staining over 5% of <br /> 35 sample, minor caliche. dense, damp, strong <br /> hydrocarbon odor <br /> SILT(ML), brown to dark brown(10YR, 413), <br /> 100% low plasticity fines, manganese-oxide <br /> staining over 5% of sample, minor caliche, very <br /> stiff, damp. strong hydrocarbon odor <br /> 1 311 5 229 <br /> 40 <br /> REMARKS <br /> Boring drilled using 8-inch dumeter continuous-flight,hollow-nem auger drilling equipment and sampled with a <br /> modified California spht-spoon sampler Boring driIIed inside eusmn 12-Inch diameter PVC conductor casing Bong <br /> E00Nconverted to a 2-inch diameter aur sparge well See Well Deuals sheet for well construction information <br /> E ON <br />