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Project: ARCO Station# 2168 Log of Monitoring Well: <br /> Location:441 West Charter Way,Stockton CA Project Number. 38466562 MW-12 'r <br /> Drilling Contractor: Woodward Drilling Drilling Method: Hollow Stem Auger Borehole Name: MW-12 <br /> Dates Drilled: 11/15/05 WeB Conswction Date: 11/15/05 Logged By: Scott Lookingbill,R.G. <br /> Borehole Diameter. S-inch Casing Diameter. 2-inch Type: SCH 40 PVC Checked By: Veo Blmth,R.G. <br /> Total Depth Drilled: 32.5 feet Screen lateral: 17-32 fat Slot Size: 0.020-inch Sampling Method: CA Modified Split Spoon <br /> Comments: <br /> .a _^ a 8 .g <br /> 2 <br /> Z Sample ID °' 4 LH'HOLOGY DESCRIPTION WELL CONSTRUCTION <br /> 0 Silty Clay(CL), light yellowishUmn,veryhard.Iowplasticity,no B&iTh fhrW mmnt 0 <br /> odor.dry to damp. trafficgadevadthoa <br /> m WW tamed with 2- <br /> U inch IMmg paasure <br /> Cap <br /> 5 0.0 5 <br /> 50/5 <br /> Neat amem from <br /> Mat smha N 12 ft <br /> Silt(ML). tight yellowirh brown,very hard,am plattic,no oda,dry. <br /> 4 <br /> t0 50/6 0.0 10 <br /> Benumite sea] <br /> 12-15 ft <br /> IS 0.0 Trace very fnc gained mud 15 <br /> 32 <br /> clayey silt(bBJ. UgM yellowish haown,firm,low plasticity,white <br /> mottling,no odor.moist. <br /> 20 0.0 m <br /> 18 hma2-20 1010 <br /> Silty Clay(C,)-Light dmeds® <br /> olive brown,hard, plasticity,slight :4 MW-12 <br /> VIAhydrombon-like oda.damp. 2.iwh SC H b FVC- <br /> 25-x 1.5 0.020-inch Slot 25 <br /> 27 +:: Screen 17-32 ft <br /> i e3 Fileer pack Sand <br /> j: 15-323 ft <br /> Cayey Sal(MI.). tightoliw:b+owa.tree nand,adff,low piastidry, <br /> clay idaheds,agghthydro®boo-hYs oda,moist <br /> 30 0.0 30 <br /> i€ <br /> m <br /> 5: <br /> k <br /> s <br /> "ss <br /> r <br /> Fa <br /> r <br /> €u <br /> 2090rrew.y04.0e,Sa30) <br /> S.6-M-20 95833 :. <br /> 916679-20000 �'` <br />