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SOIL BORINGIWELL CONSTRUCTION LOG Boring No. MW-8 Sheet: 3 of 6 <br /> Client Arco 443 Date December 2,2008,completed February 11 2009 <br /> Address 2478 East Oak Street Drilling Co. Woodward Drilling rig type: SK-81 <br /> Stockton,CA Driller Dave Van Steyn <br /> Project No. E443-01 Method Hollow Stem Auger Hole Diameter 18/10 inches <br /> Logged By: Allan DudLL,Scoft Siitinger Sampler 18 or 24 Inch long x 2 Inch diameter split spoon <br /> Well Pack sand: 97 ft.to 117 ft. Well Construction Casing Material: Schedule 40 PVC Screen Interval: 103 to 113 ft <br /> bent.: 92 ft.to 97 ft. Casing Diameter:2 in Screen Slot Size: 0.020-in. <br /> grout: 0 ft.to 92 ft Depth to GW: Qfirst encountered:55 feel bos VStatic. <br /> Sam le Sam to <br /> Blow- Well Depth Lithologic <br /> T e No. Count Time Recur. pecanPID <br /> 13 pecans Scale Column Descd Iona of Materials and Conditions Pply <br /> 18 41 CL Silty Clay_CL,dark gray(5Y 4/i low lasticit ,moist,hard. 60%Ga ,40° <br /> _______ )___"—P_-._-___Y Y % 8.8 <br /> S MW-e-41 20 0920 100% sill ------" <br /> ________-. ------- ----- ------- _42 <br /> ---------_--- ------- <br /> ------ --------.---- _-_.__- ________ 44 <br /> .. <br /> 11 _____--"____-."._____"_____"______________"_"_-_____-_-_-_"""-_-__-"--___----._-__._____-._ __ <br /> 12 46 Same asS above,very stiff.MW-5-46 13 0929 100% - -_-__""""-___."_-___"_-----------------—---------_--------------____..__--- <br /> 3.1- <br /> ----- "._---------- -------- ________________ " 47 <br /> .._---—------------------_._____._._ <br /> _____________ _______ _________------ 48 <br /> __-__ ___._.-__-_. --------_-______-------- 49 <br /> ----------------- '---""--""-- ----- <br /> --- .- 50 <br /> 15 -----------__—_.__.__.."__-_.._------------_-----_-------------------- <br /> ____ _16 -__-_.: '.,; 51 Same as above,very stiff to hard. 0 <br /> 5 MW-8-51 16 0940 100% ". ______—__._____.______---------------------------____"-________-------- <br /> ______--------.---- -------- ____________ - 52 <br /> ----- ____________ _______ ______________ —53 <br /> i <br /> ------ -----.------- --------- _._----________ —54 <br /> -------- <br /> ------- ------------- I_12_ ------- -------- 55 0 <br /> -----------------------------------------_-_--------------------------- <br /> __ <br /> 13._ ..____ 55 ML Clayey Silt,trace sand_ML,olive(5Y 4/3)_low plastic ly.wet,very stiff 70% 17.4 <br /> S MW e-se 15 0944 100% slit 30%clay,trace fine sand. <br /> ------ <br /> ------------- <br /> __-___ ---------_____= _57 <br /> _____------------- _.._-_ ---------------- 58 i- <br /> i <br /> _________I _______ ------_---------- —59 <br /> Inner Wall of 18"HSA string <br /> Steel Conductor Casing Comments: ' <br /> Well Casing <br /> Recovery NAL G <br /> Sample <br /> a Stephen J.Cwter N► ENVIRONMENTAL,�rj�/fr(�� <br /> � No. 5577 * J► -ter- ` <br /> rP 4 <br /> OFC �F� <br />