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MON'I'TORING WELL LOG <br /> PROJECT NAME: Agricultural Commissioner's Office,Tracy <br /> LOG OF WELL: MW-2 <br /> SITE ADDRESS: 503 East 10th Street <br /> TOTAL DEPTH (ft): 20 <br /> Tracy, California WELL DIAM. (in): 2 <br /> DATE STARTED: 10129/1998 9/1 9 9 8 DRILL/=RICOMPANY: Frank Ramirez <br /> DATE COMPLETED: 10/29/1998 V&W Drilling {G57#720904} <br /> DRILLING METHOD: Hollow-Stem Auger GEOLOGISTIENGINEER: Joseph Ramage, R.G.#5856 <br /> Split-Spoon Sampler: Ramage Environmental <br /> O o q� <br /> m <br /> w a DESCRIPTION N <br /> T w U) o = <br /> Z f C1 0 <br /> IL m U) CJ Il <br /> ail <br /> LE o D Q p <br /> Q m 0. U7 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). 0 <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 /> L 8 l 8 <br /> 9 p Encountered saturated soil and groundwater at 10'bgs. 9 <br /> 102A (Static groundwater at 7.85'bgs after 15 minutes) 10 <br /> 11 11 <br /> 12ML CLAYEY SILT: Some fine sand,'black organic stringers, 12 <br /> 13 light brown,moist-wet, medium stiff, petroleum odor. 13 <br /> 14 14 <br /> 15 6 0.9 15 <br /> 16 <br /> r <br /> 17 17 <br /> SILTY SAND: Fine poorly-graded sand, <10%clay, <br /> 18 light brown,wet, loose, no petroleum odor.. 18 <br /> { 1' 19 19 <br /> 4i 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 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 /> 2 28 <br /> 8 <br /> 29 29 <br /> j 30 30 <br /> Page 1 of 1 <br /> .i ' <br />