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Project: ARCO Station # 2168 La or <br /> Location: 441 West Ch Monitoring <br /> F Charter Way,Stockton,CA Protect Number: 38466562 � 1R� Well: <br />!, F7 Drilling Contractor: Woodward Drilling Drilling Method: Hollow Stem Auger MW-11 <br /> Borehole Name: MW_11 <br /> Dates Drilled: 11/14/05 Well Construction Date: 11/14105 <br /> Logged BY: Scott Lookingbill,R.G. <br /> 1 Borehole Diameter: 8-inch Casing Diameter. 2-inch <br /> asnDiatType: SCH 80 PVC Checked By: Vern Elarth,R.G. <br /> Total Depth Drilled: 32 feet Screen Interval: 17-32 feet <br /> Slot Size: 0.020-inch Sampling Method: CA Modified Split Spoon <br /> Comments; Well was mistakenly constructed with SCH 80 PVC instead of SCH 40 PVC. <br /> a <br /> U= m <br /> A •� 6 td+� _G � � <br /> Sample ID °' H t:7 LTMOLOGY DESCRIPTION <br /> 0 WELL CONSTRUCTION <br /> Silty Clay(CL). tight yellowish brown,very hard,low plasticity,no 8-inch flush mount 0 <br /> 'o <br /> Odor,dry to damp. traffic grade vault box <br /> CJ Well secured with 2- <br /> inch locking pressure <br /> - cap <br /> 5 0.0 i <br /> 5016 <br /> S <br /> Neat cement from <br /> near surface to 12 ft � <br /> J <br /> Silt{ML}. Light yellowish brawn,non plastic,very hard,no odor,dry. <br /> to 0.a <br /> 5016 10 <br /> 15 Bentonite Sea] <br /> 5016 0.012-15 ft <br /> Trace very fine grained sand. <br /> 15 <br /> I <br /> SiitY Clay(CL). Light yellowish brown,stiff,medium plasticity,iron <br /> 20 staining,no odor,moist. <br /> 0.0 <br /> 19 MW-11-20 1350 <br /> 20 <br /> Clay(CL). Light olive brown,hard,d,medium plasticity,no odor,damp_ <br /> MW-11 <br /> 25 2-inch SCH so PVC, <br /> 0.0 :? 0.020-inch Slot <br /> li 34 Screen 17-32 ft 25 <br /> J #3 Filter Pack Sand <br /> 15-32 ft <br /> Silly Clay(CL). Greenish gray,hard,low plasticity,slight ' <br /> ehydrocarbon-like odor,moist. <br /> 30 0.2 <br /> 36 30 <br /> t I <br /> r E <br /> j <br /> II <br /> _ 2870 Gateway Oaks Dr.,Ste 300 <br /> Sacrataertto,CA 95833 <br /> 916-679-20W <br />