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Stellar Environmental Solutions Soil Boring Log <br /> 2198 Sixth Street, Berkeley, CA 94711 <br /> Geoscience&Engineering Consulting <br /> BORING NUMBER MW-4 Page 1 of 2 <br /> PROJECT Barber (Acampo) _ OWNER Western Oil & Spreading <br /> LOCATION WO&S, Acampo, CA PROJECT NUMBER 2002-20 <br /> ' TOTAL DEPTH 60 feet bgs _ BOREHOLE DIA 8-Inch <br /> SURFACE ELEV L1 00 feet WATER FIRST ENCOUNTERED -55 feet bgs <br /> ' DRILLING COMPANY Woodward Drilling DRILLING METHOD Hollow Stem <br /> DRILLER Van/Rick GEOLOGIST IF Hayden DATE DRILLED 616102 <br /> ' DEPTH GRAPHIC a7� o= INSTRUMENT DESCRIPTION/SOIL CLASSIFICATION REMARKS <br /> (feel) LOG Awa mo READING <br /> (ppmv) <br /> 0 Asphalt gravelly (hand auger 5') <br /> Gravelly sand (SG9), reddish <br /> 2 SG? brown, gravelly sand, w/some silt <br /> ' (See samples collected from D-1 <br /> 4 --8'SW for Intervals 5, 10, 15, 20) <br /> • <br /> fi • Silty sand (SM), yellowish brown, <br /> • _ silty sand, w/clay, no odor, slightly <br /> 8 moist See also boring log D-1 <br /> 10 for samples @5', 10', <br /> • <br /> • <br /> 15'& 20' depth <br /> 12 ' <br /> 16 Clayey sand (SC), yellowish <br /> brown,clayey sand w/some silt, <br /> 18 no odor, slightly moist, sand -80% <br /> 20 coarse-fine <br /> Clayey sand (SC), reddish gray, <br /> ' 22 clayey sand, some silt, <br /> popcorn-sized balls <br /> _24—. Clayey sand (SC), reddish gray <br /> 26 50 720 and light gray clayey sand, @830, MW-4-25 <br /> ' w/some silt (hydrocarbon odor), <br /> 28 slightly moist <br /> ' Silty sand (SM), grayish brown, <br /> 30 50 1020 silty sand, w/reddish mottling, <br /> 5112 some clay, hydrocarbon odor, 0845, MW-4-30 <br /> 32 slightly moist, med-fine <br /> -34-' Clayey sand (SC), light grayish, <br /> so 130 clayey fine sand, w/some silt, @ 900, MW-4-35 <br /> 36 <br /> ' for moist, mica?, odor <br /> . 38 a <br /> ' <br /> 40- <br /> (MW-4-40, see page 2) <br /> 0 <br /> 0 <br /> N <br />