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MONITORING WELL LOG <br /> PROJECT NAME. Agricultural Commissioners Office,Tracy <br /> LOG OF WELL: MW-2 <br /> TOTAL DEPTH (ft): 20 <br /> SITE ADDRESS: 503 East 10th Street 2 <br /> Tracy, California WELL DIAM. (in): <br /> DATE STARTED: 10/29/1998 DRILLER/COMPANY: Prank Ramirez <br /> DATE COMPLETED: 10/29/1998 V&W Drilling (C-57#720904) <br /> DRILLING METHOD: Hallow-Stem Auger GEOLOGISTIENGINEER: Joseph Ramage Environmentalage G. 95856 <br /> Split-Spoon Sampler <br /> J <br /> co CD <br /> s i <br /> CD DESCRIPTION <br /> J w u? o <br /> 0. U)n U 0. <br /> LUE o O Q U) LU <br /> ❑ cn m a W Z ❑ <br /> WELL COMPLETION: Expansion Cap,Master Lock, <br /> 8-inch diameter street box(flush mount) <br /> 0 Asphalt(4-in.thick)over aggregate base(6-in.thick) <br /> 1 <br /> 1 <br /> 2 <br /> 2 <br /> 3 <br /> 3 <br /> 4 <br /> 4 <br /> 5 'e 13.6 CL SILTY CLAY: Grey-brown, moist, stiff,petroleum odor. 5 <br /> 6 <br /> 6 <br /> 7 7 <br /> 8 8 <br /> 9 V Encountered saturated soil and groundwater at 10'bgs. 9 <br /> 10 e 2 1 (Static groundwater at 7.85'bgs after 15 minutes) 10 <br /> 11 11 <br /> 12 ML CLAYEY SILT: Some fine sand,black organic stringers, 12 <br /> 13 light brown,moist-wet,medium stiff, petroleum odor. 13 <br /> 14 <br /> 14 <br /> 15 s 0.9 15 <br /> 16 16 <br /> W SM SILTY SAND: Fine poorly-graded sand, <10%clay, 17 <br /> 18 light brawn,wet,loose, no petroleum odor. 18 <br /> 19 <br /> 19 <br /> 20 ,5 1.8 20 <br /> 21 CL SILTY CLAY: Minor fine sand, light brown,moist, 21 <br /> 22 stiff, no petroleum odor. 22 <br /> 23 <br /> 23 <br /> 24 Terminated boring at 20 feet and installed monitoring well 24 <br /> 25 (Sch 40 pvc,0.010-in slot,#3 silica sand) 25 <br /> 26 Surged 10 minutes and purged 10 gallons 26 <br /> 27 (Placed and hydrated bentonite chips and cement seal) 27 <br /> 28 <br /> 28 <br /> 2 <br /> 29 9 <br /> 30 30 <br /> Page 1 of 1 <br />