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MONITORING WELL# MW-4 CONTRACTOR Woodward START DATE 7/29197 <br /> JOB# COLO1 001 RIG TYPEIMODEL BK81 FINISH DATE 7/29/97 <br /> CLIENT Colberg Boat Works DRILLING METHOD Hollow-stem auger BACKFILL DATE <br /> SITE ADDRESS 858 W Fremont St,Stockton,CA BORING DIAMETER 8" TOC ELEV 10 26'msl <br /> -aSOIL TYPE-grading,color,moisture,density/consistency, E <br /> Depth Below a 4 <br /> Ground 0 7 Graphic U) %gravel,sand, fines,particle angularity,shape,size range, <br /> Surface Fn u° Log �� odor,staining,other <br /> 0-6 inches till and grave <br /> I 6 inches-5 feet silty clay,brown,moist,no odor - - <br /> Grout <br /> 2 <br /> 3 Bentonite _ <br /> 4 2" Sch 40 <br /> PVC 8 <br /> 5 11 CL 5 feet-10 feet silty clay,dark brown,moist,no odor <br /> #3sand 14 <br /> 2"PVC — — <br /> screen <br /> (0 020" <br /> slot) Depth to groundwater 8 6 feet bgs <br /> 5 <br /> 10 8 CL 10 feet-15 feet silty c1ay,brown,very moist,slight <br /> 8 diesel odor <br /> 15 16 CL 15 feet-17 feet silty clay,dark gray,moist,strong <br /> 20 diesel odor <br /> CL 17 feet-20 feet clay,brown,moist,no odor <br /> 20 7 CL 20 feet-25 feet silty clay,brown gray,moist,no odor <br /> 8 <br /> 7 <br /> 12 <br /> 25 23 30 Total depth-25 feet <br /> _ Analytical sample <br /> Sample recovered <br /> 30 <br /> Project Manager T Landwehr MONITORING WELL MW-4 Project No <br /> ////;APEX Logged By K Broderick Colberg Boat Works COLO1 001 <br /> ENV 1 R O T E C H I N c Edited B T Landwehr 858 W Fremont Street <br /> By Stockton,California <br /> CL _ <br />