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GROUNDWATER If, <br /> 10� TECHNOIAGY,INC. Monitoring Well OW-4 Drilling Log <br /> ,�._. <br /> PG & E / TRACY Owner PACIFIC GAS do ELECTRIC CO. etch Map <br /> TRACY,CA Project Number 203-799-8253 <br /> a Drilled T2_/22/87—Total Depth of Hole 25 FT Diameter 10.5 IN <br />`ace Elevation Water Level Initial 7 FT 24-hour <br />:en: pia. 2 IN <br /> —Length 20 FT Slot Size •010 IN <br /> Ing: Dia. 2 IN Length 5 FT Tyyppe PVC <br /> Ing Company SIERRA PACIFIC Drilling Method HOLLDW STEM AUGER <br /> er BEN HUNT Log by C. DeSOCIO Notes <br /> logist / Engineer M License No. <br /> Q Description/Soil Oessiflcation <br /> _ <br /> (Col or,Textvre,Structures) 1 <br /> i <br /> 3 Inch asphalt over 9 Inch base course <br /> I <br /> Dark brown snty Nay with minor sand <br /> . A (Medium stiff, slightly moist, no product odor) <br /> 0 <br /> D (Grades lighter brown and mottled light brown) F <br /> E <br /> (Grades to clayey @1111t)Light brown clayey ant with minor Band , <br /> 7 (Soft. wet, no product odor <br /> R ML Encountered mater 12/22/151 (1105 hours) <br /> it <br /> 00 <br /> H <br /> ff <br /> I (Grades darker brown) <br /> µ o.o J <br /> :r <br /> 0 {{ o,o (Grades with some course sand) <br /> f 1 <br /> .F <br /> 00 <br /> 2 - .f' L 1 (Grades finer sand) <br /> r <br /> } <br /> 0•0 M Brown sity sand <br /> it <br /> 4r - (Medium dense, wet. no product odor) <br /> t { S <br /> 6 <br /> r <br /> 8 f Brown silt fine to course ravel with medium grained sand <br /> Y 9 <br /> i'•• 0.0 N 10 (Wet, medium dense, no product odor) <br /> �2 M <br /> (Grades less silty) <br /> .r <br /> O-0 0 (Grades less sandy) <br /> r~ <br /> is .fj.;JRrr Brown gravelly sand <br /> Do P <br /> :r F... (Well.: (Well graded, medium dense. wet, no product odor) <br /> SW s. <br /> 4 <br /> Z. <br /> 1 x:f"�t R. End of burin . Installed monitorin well <br /> T% - - q -R A <br />