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II Boring Lo <br /> Stellar EnUlranmental Solutlans So g g <br /> 2198 Sixth Street, Berkeley,CA 94710 <br /> Geoscience&Engineering Consulting <br /> BORING NUMBER MW-4 Page 2 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 ~100 feet WATER FIRST ENCOUNTERED --55 feet bgs <br /> DRILLING COMPANY Woodward Drilling DRILLING METHOD Hollow Stem <br /> DRILLER Van/Rick GEOLOGIST F Hayden DATE DRILLED 6/6/02 <br /> Pit) <br /> DEPTH GRAPHIC �}� INSTRUMENT DESCRIPTIOfV1S01L CLASSIFICATION REMARKS(feet) LOG a ma READING <br /> '-� " (ppm ) <br /> 40 Clayey sand (SC), yellowish- 0915, MW-4-40 <br /> 00 00 brown clayey sand, fine, <br /> 42 moist, wlsome silt <br /> ' 44 <br /> Clayey sand (SC), grayish-brown, <br /> 46 so 01 Do clayey sand wlsome silt, reddish <br /> for mottling, whitish stain, no odor, @935, MW-4-45 <br /> r 48 5112 slightly moist <br /> 50 50 00 DD Clayey sand (SC), yellowish <br /> 5,� brown, clayey sand wlsome silt, 01000, MW-4-50 <br /> 52 moist, no odor <br /> ' 54 <br /> 56 25 00 Sand (SP), reddish brown, 01015, MW-4-55 <br /> 4 medium sand <br /> 58- <br /> -60— Same (SP) <br /> ' 40 <br /> 50 Bottom of boring at 60' @ 1008 0 1030, MW-4-60 <br /> for <br /> 5 <br /> Boring terminated @ 60'@1008 <br /> GW encountered @ 55'bgs <br /> Construct monitoring well MW-4 <br /> Screen 60-40 020 slot <br /> Sand#3 38-60' <br /> ' Bentonite chips 36-38' <br /> Grout to grade using neat <br /> portland cement(36 to 0) <br /> ' o <br /> �pN <br /> O <br /> N <br />