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i <br /> SOIL BORINGIWELL CONSTRUCTION LOG Boring No. Ili Sheet: 4 of 6 <br /> Date December 2 2008 completed February 11 2009 ` <br /> Client � Arco 443 r <br /> Address 2478 East Oak Street Drilling Co. Woodward Drilling rig type: BK-81 ; <br /> Stockton,CA Driller Dave Van St - <br /> Project No. E443-01 Method Hollow Stem Auger Hole Diameter: 18110 Inches - <br /> Logged By Allan Dudding Scott Bittinger Sampler 18 or 24 inch long x 2 inch diameter split spoon i. <br /> Well Pack sand: 97 ft.to 117 ft. Well Construction Casing Material: Schedule 40 PVC Screen Interval: 103 to 113 ft. ` <br /> 1 <br /> bent.: 92 ft.to 97 ft. Casing Diameter 2 in Screen Slot Size: 0.020-in. <br /> grout 0 ft.to 92 It. Depth to GW: V first encountered:55 feet bos -Static: <br /> Sam to Blow Sam le well Depth Litholaglc PIC <br /> i <br /> T e No. Count Time Recov. Derails Scale Caluinn Desed Bona of Materials and Conditions PPM <br /> 10 <br /> 10 '.( P SM Silty Sand,SM,very dark grayish brown(2.5Y 312)_fne grained,wet_ __ _ _ ._32.0_ <br /> _._ _ ---.-._ - <br /> ---- ------ '" ---" medium dense 60%sand,40°k silt. <br /> S MW 6 61 11 0952 100 <br /> I <br /> ,i 63 --_-_-_-_-------_----------------------_------_.-------_-------------._.__ ------- I <br /> 64 -------------------------------------------------------_----------------_--------------- <br /> ------- <br /> z —65 --------------------------------------------------------- <br /> 12 i <br /> 13 0% 66 / No recovery,saturated sediment. -------------------- <br /> 14 � <br /> ' 67 v -------- ____.... <br /> 68 <br /> "r —69 10 gallons of potable water added Inside the augers to prevent heaving/Flowing _ <br /> _-. .-------_ ---- -------- -------- 70sand. <br /> ________-__.__ ..____ <br /> ----------------- ---2------ --- ML Silt,ML,tla k greenish gray(GLEY1 4/10Y),non-plastic,coat,soft. silt. 13.0 f <br /> 2 1028 15% 71 -___----._-.-..-__--.--_--_-_-____--_.____-_-___---_--__-.___________ -_.._------ <br /> -._-__ } <br /> ------------------ ---2-- --"--- Non-consolidated material(flowing sand)contained in the sampler is Iiquifed <br /> ,.. <br /> 72sand and silt,dark greenish gray- __ <br /> .-.._.._-__-_-_-_-__---_-.__-----_ --- <br /> ------------------- ---------------- -------- <br /> — _-_.._----.__-__---__.-_-_--_---.— <br /> —73 /� 10 gallons potable water eddetl insitle the augers. -------------_-----_ <br /> 74 <br /> ----- ------------ ------ "----""- — Well-sorted Sand with silt,SW,dark olive gray(5Y 3%2),fine to coarse <br /> - 75 SW grained,wet medium dense. 90%sand,10%slit. ___ _________________�-_-.__--_-___ <br /> ----- _.4__ ____.. ___. <br /> - ----------------- 15.8 <br /> it <br /> S _MW_6-75 -5 1036 40% 78 ML Silf,ML_dark greenish gray(GLEY1 4I10Y),non-plastic_wet.100%---- ___ ___-- <br /> __ 7 _- _. ___ ._ _. <br /> 77 __---------------------- -------- <br /> ------ <br /> -79 ------------------------------------------_-------------------------------_------_--------_--------- -------- <br /> - SW <br /> so <br /> Inner Wall of 18"HSA string <br /> Steel Conductor Casing Comments: <br /> Well Casing <br /> Recovery <br /> Sample <br /> 4AL <br /> ENVIRONMENTAL, INC. . <br /> R tephen J.Carter <br /> No. 5577 <br /> �9�OF C <br />