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LOG OF EXPLORATORY BORING 7 <br /> PROJECT NUMBER 0805-147.01 BORING NO. B4/MW-2 <br /> PROJECT NAME ARCO Products Company Service Station No. 2186 PAGE 4 OF 4 <br /> BY D. Foley DATE 8/29/95 SURFACE ELEV. 15.9 ft. <br /> RECOVERY FID PENETRA- (n LITHO- HELL <br /> TION L_LJ' GRAPHIC DESCRIPTION OETAIL <br /> 0�_Uj <br /> gP, �t = COLUMN <br /> W Ix <br /> (ft/ft) (ppm) (b(ws/ftrh <br /> 1-011.5 0 <br /> 1 SANDY SMT(SM), continued <br /> 44 SZ @61 as above; brown (10YR, 513); 80% low <br /> $129/95 plasticity fi20% fine-grained sand <br /> - <br /> 1.011.5 65 @65'. as above; yellowish brown 00YR, 5/4), <br /> iron-oxide staining over 30% of sample; <br /> 35 manganese-oxide staining over 5% of sample, <br /> hard, wet. no hydrocarbon odor <br /> SAND(SW), olive brown (2.5Y. 413); 10% fines; <br /> 85% fine-grained sand; 5% medium to <br /> coarse-grained sand; iron-oxide staining over <br /> 30% of sample-, dense; wet; no hydrocarbon odor <br /> 1.111.5 70 <br /> 54 <br /> 1.011.5 @73.5*: as above; olive gray (5Y, 512); 100% fine <br /> to medium.-grained sand: trace coarse-grained <br /> 19 75 sand. medium dense; no hydrocarbon odor <br /> BORING TERMINATED AT 75.5 FEET <br /> so <br /> RFMARKS <br /> Boring drilled using 10-inch diameter continuous-flight,hallow-stem auger drilling equipment and sampled with a <br /> modified California split-spoon sampler. Boring converted to-a 4-inch diameter groundwater monitoring well,See <br /> Well Details sheet for Well COMPICLiOn information, <br /> EQON <br /> L7 j I <br />