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SOIL BORING LOG Boring No. IW-1 Sheet: 2 of 3 Client Knowles Property Date April 11-12,2012 Address 7835 Thornton Rd. Drilling Co. All Well Abandonment Rig Type. LAR Stockton,CA Driller Rob Project No 2129-1140-01 Method Hollow-Stem Auger Hole Diameter 8 inches Logged By: Shane Edmunds Sampler. 18"long x 2"diameter split spoon Depth to GW: Vfirst encountered: 41 feet bgs -Static: feet bgs Sample Blow Sam le pepth Lithologic PID Type No. Count Time riecov. Well DetailsScale Column Descriptions of Materials and Conditions PPM 19 A B –2 __ 4 21 M L Sandy silt,75%silt,25%fine sand,moist,light olive brown 2.5Y 5/3 0 ------ -------------------------------------------------------------------------- -------------------- S IW-1-21 29 1335 100% 22 23 24 25 27 As above S- IW-1.25 30 1340 70% 26 SP Poorly Graded sand w/fines,90%fine sand,10%fines,angular sand grains,moist 36 ----------------------------------------------------------------------------------------------------------------- – --— – – – —27 –– — ^- —---- - - 28 29 ------------------------- ---------- — -------------------------------------------- _ CL Sandy clay,60%clay,40%fine-medium sand,moist 30 23 399 S IW-1-30 27 1345 70% 31 ML Clayey silt,60%silt,40%clay,dry,olive brown 2.5 Y 4/3 _--— – ------ ----- – - - — - —--------------------------------------- 32 -------------- -------- 32 GRADES INTO 33 34 --------------- ---1 8 ---------– 35 CL Silty --------------------clay,-------------40%silt,dry,----------slightly cemented----------------------------------- ------------------------470------ clay,- -60% 22 36 S IW-1-36 27 1350 100% 37 38 39 40 Comments: Recovery Sample ENVIRONMENTAL,INC.