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t <br /> 4 <br /> LOG OF EXPLORATORY BORING <br /> BORING NO. B-1/MW-1 <br /> 1 <br />` <br /> FPROJECT NUMBER 0805-147.41 PAGE 3 OF 4 <br /> OJECT NAME ARCO Products Companv Service Station No. 2186 <br /> BSURFACE ELEV. 15.4 ft. <br /> Y D. Foley DATE 8!29195 <br /> WELL <br /> RECOVERY FID PENETPA- (a LITHO- OETA[L <br /> TION ] kCL (L <br /> -1 GRAPHIC ❑ESCRiPTiON <br /> �� COLUMN <br /> 4Z 1 <br /> (ft/ft) (PPM) (biws/ft} Cn <br /> 1.311.5 U @40': as above; brown (10YR, 5/3); iron-oxide <br /> staining over 30% of sample; minor caliche; hard; <br /> 43 damp to moist; slight hydrocarbon odor <br /> CLAYEY SILT(ML), brown 00YR, 5/3); 100% low <br /> plasticity fines; iron-oxide staining over 20% of <br /> sample; gray staining over 20% of sample; hard; <br /> 1.3/1.5 0 <br /> 45 damp to moist; slight hydrocarbon odor <br /> 50 <br /> SANDY SILT(ML), dark yellowish brown (10YR, <br /> 414); 80% low plasticity tines; 2Nz Fine-grained <br /> 1.3/1.5 p 50 sand, iron-oxide staining over 60% of sample; <br /> gray staining over 5% of sample; very moist, <br /> 15 stiff; slight hydrocarbon odor <br /> SAND (SP), dark brown 00YR, 3/3); 10% fines; <br /> 90% fine-grained sand; medium dense, very <br /> moist; slight hydrocarbon odor <br /> I.2/1.5 0 55 . . . <br /> 20 . . <br /> 9/6/95 ' <br /> _ SILT(ML), olive brown (2.5Y, 4/3); 100% low <br /> plasticity fines; iron-oxide staining over 20% of <br /> sample; gray staining over 5% of sample; hard; <br /> wet; slight hydrocarbon odor <br /> 60 <br /> RE-bIARKS <br /> Boring drilled using iO-inch diameter continuous-(light,hollow-stem auger drilling equipment and sampled with a <br /> modified California split-spoon sampler. Baring converted to a 4-inch diameter groundwater monitoring well.see <br /> EQONWell Details sheet for well completion information. <br /> E ON <br /> i <br />