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SOIL BORING LOG Boring No. IW-3 Sheet 1 of 1 Client Arco Station 5469 Date 3125/02 Address 130 South Wilson Way Drilling Company: Woodward Drilling Company rig e: BK-8t Stockton,CA Driller: Frank Ramirez Project No. D000,336 Method Hollow Stem Auger hole diam.:8" Logged By: Scott Bittin er Well Pack sand: 54 ft, to 58 ft. Well Construction casin : PVC bent.: 52 ft. to 54 ft. __casing diam.:0.75" 2"diameter microporous tubing installed 55.5'-58' rout: 0 ft. to 52 ft. Depth to GW: ft.Time/Date V ft.Time/Date sample Blow Sam le welt Depth Descriptions of Materials PID Constru LrrHo T e No. Count Time Recov. ct. Scale COLUMN and Conditions PPM _ No samples collected 0'-45'bgs 4 5 ----- –------------------� --- ------- ------ — -------------------------------------------•---------•------------------------------------------------------- ______ ---- 24----..-9:-04 90 4 6 CL SILTY CLAY with SAND,gray brown with orano iron oxide stains_5,8%6-- --- 50 _ fine grained sand,moist,stiff 4 7 9:07 50 4 8 ML SILT,gray brown with orange iron oxide stains, moist,vn stiff-- - ----------------- ---------------------------- ------- - ------------------------------------------------------------------- 19 —_ ML 51LT,as above,to 49 2' 22 9:12 100 S 0 CLAYEY SILT 49.2'-50.5',brown with white caliche,moist, stiff - - - -- -- -- -- - - -- — -- - -- - - -- - --------- - - --------------------- 29 ----------------------•------- --------------- 5 t ------------------------------------------------------•--------------------------------•---------------------- - -9---- 9:17 100 5 2 CL SILTY CLAY,brown,moist,stiff - - - — --- - - - - ---- -- - -----------------------------------------------•----------- 10 _ 5 3 6 _ SILTY CLAY,as above,until 53.4' 8 _ _ 5 4 L SANDY SILT,brown,30-40%fine grained sand damp,medium stiff --- - - -- - - — - - - - --- -- --- -------- 10 _ 5 5 9:25 70 5 6 SP SAND,brown,very fine 9rained:10%6 fines,wet S 7 12 _ 18 9:35 50 5 8 SP SAND,brown,very fine drained_10%fines_wet 19 5 9 Comments: No samples collected 0'-45'bgs.#2112 sand used for filter pack. Sampled to 58.5',drilled to 58'and completed well.