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MONITORING WELL LOG <br /> PROJECT NAME San Joaquin County Parking Garage LOG OF WELL MW-1 <br /> SITE ADDRESS 130 N Hunter Street BOREHOLE DIAM (in ) 8 <br /> Stockton,California WELL DIAM in 2 <br /> DATE STARTED July 11,2002 DRILLER/COMPANY Eddie Mitchell <br /> DATE COMPLETED July 11,2002 Mitchell Drilling(C-57#672617) <br /> DRILLING METHOD Hollow-stem Auger GEOLOGIST/ENGINEER Joseph Ramage,R G #5856 <br /> S lit-spoon Sampler Ramage Environmental <br /> 0O <br /> m o ua <br /> m a LL <br /> LL <br /> T � � CO � 2 <br /> a a m U F <br /> U — o_ <br /> W s0 Q = DESCRIPTION 3: a <br /> © in I m I a z <br /> 0 Concrete surface Hand dug first 5-feet 0 <br /> Started soil sampling at 10-feet <br /> 5 NA <br /> 10 76 169 MW1-10 CL SILTY CLAY Medium gray-brown,dry,stiff,slight 10 <br /> petroleum odor <br /> 15 29 3,910 MW1-15 ML CLAYEY SILT Medium gray-tan,dry very stiff 15 <br /> strong petroleum odor <br /> 20 23 4,060 ML SILT Medium brown,dry,very stiff strong petroleum odor 20 <br /> Static groundwater at 22 20 feet bgs on 7124/02 <br /> 25 z 470 (grades some clay, medium gray-brown,moist, 25 <br /> stiff,moderate petroleum odor) <br /> Encountered saturated sort at 29 0 feet bgs on 7111102 <br /> 30 74 3 350 ML CLAYEY SILT Medium gray-brown,moist to wet,stiff 30 <br /> strong petroleum odor <br /> 3520 3,890 MW 1-35 (grades very stiff) 35 <br /> Terminated boring at 35 ft Installed 2-in diameter pvc monitoring well <br /> Well Screen(0 020-in slot)from 15 to 35 ft Filter pack of#3 Sand from 13 to 35 ft <br /> Hydrated bentonite chips from 11 to 13 ft Neat cement from surface to 11 ft <br /> LoLL Completed well with expansion cap and flush-mourit street box P 40 <br /> Page 1 of 1 <br />