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' MONITORING WELL LOG <br /> PROJECT NAME Former Stefano's Gas Station LOG OF WELL MW-7 <br /> SITE ADDRESS 1419 East Charter Way TOTAL DEPTH (ft) 50 <br /> Stockton, California WELL DIAM in 2 <br /> 1 <br /> DATE STARTED September 28, 2001 DRILLER/COMPANY Amador Arroyo <br /> DATE COMPLETED September 28, 2001 V&W Dnllin C-57#720904 <br /> DRILLING METHOD Hollow-stem Auger GEOLOGIST/ENGINEER Joseph Ramage, R G #5856 <br /> Split-spoon Sam ler Ramage Environmental <br /> C <br /> u <br /> a Y ti <br /> ye, W H <br />' U.1 0C <br /> 0 d m (n m ° F-- <br /> w e ° o Q z } DESCRIPTION a <br /> D ,n m a (!) Z � N <br />' 0 WELL CONSTRUCTION 2-inch pvc screen(0 020)from 30-50' 0 <br /> #2112 sand from 28-50',Surge and purge, <br /> Hydrated bentonite chips from 26-28' <br /> 20 1 cement bentonde from surface to 26' <br />' Expansion cap, Dolphin lock,8-inch utility box <br /> 5 au 00 ML SILT Cemented,light tan,dry hard,no petroleum odor 5 <br /> 1000 ML CLAYEY SILT Light beige,dry,very stiff no petroleum odor 10 <br /> ,a <br /> 1525 00 15 <br />' 20 za 00 ML SILT Light orange-brown,dry,very stiff,no petroleum odor 20 <br />' Y5 ° 0 0 (grades light orange-beige,stiff) 25 <br /> ,e <br /> 300 00 MW7-30 (grades medium beige-gray) 30 <br /> t <br />' 357 0 D (grades medium orange-brown,medium stiff) 35 - <br />' Static groundwater at 39 90 feet bgs on 9/2"1 <br /> 40 „ 00 MW7-40 ML CLAYEY SILT Medium beige-brown,dry,stiff,no petroleum odor 40 <br /> 1 <br /> / 45 „T 00 ML SILT Minor clay medium beige-brown,moist,stiff, 45 <br /> 6 no petroleum odor <br /> Encountered saturated soil at 46 0 feet below ground surface <br /> ML SANDY SILT Fine sandy silt,light beige-brown wet very stiff, <br /> 50 71 0 D 11 MW7-5011 I I no petroleum odor 50 <br />' Page 1 of 1 <br />