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LJHVJGRoUNDWATEJ1j1 ❑ TECHNOLOGY <br /> ,INC. <br /> Monitoring Well OW-2, Drilling Log <br /> `��oJect PC E / TRACY Owner PACIFIC GAS do ELECTRIC Co. Sketch Map <br /> t�catlon 1RACY,CA Pr0Ject Number 203-799-8258 <br /> Date Drilled 1 4 88 Total Depth of Hole 26.5 FT <br /> { Surface Elevation -- 5 FT Dlameter 10.5 IN <br /> ---.Water' Level Initial 9•• .5 FT 24—hour <br /> LScreen: Dia, 4 IN Len Length— 20 FT <br /> Casing: Dia, 4 iN g Slot Size •D20IN <br /> Length 5 FT Type PVC <br /> Drilling Company SIERRA PACIFIC Drilling Method HOLLOW STEM AUGER <br /> LDriller LYNN PERA Log by C. DeSOClO Notes <br /> Geologlst / Englneer 1 <br /> L cense No.� �9� Leak in headspace <br /> (` container <br /> L <br /> s Description/Son Classification <br /> (Color,Texture,Structures) <br /> Eha 0 ' 3 inch as <br /> � p !t over 6 Inch base course <br /> CL Black snty clay <br /> 2 •R (Medium stiff, moist, strong odor—Lampblack [PNAD <br /> 0 0 (Grades lighter color to brown) <br /> 4 Brown—gray silty clay <br /> (Medium stiff, moist, slight product odor) <br /> 6 : <br /> C <br /> 666 A Green—gray silty clay <br /> L (Soft, moist, strong product odor) <br /> 8 <br /> 466 B (Grades very moist, strong product odor) <br /> 0 538 Encountered water 1/4/88 (1440 hours) <br /> •• CL Brawn silty clay with minor sand <br /> rr (Medium stiff, Wet, product odor) <br /> 12 �` *4i2 E 1 (Grades grayish wuth fine to medium gravel, wet, strong <br /> f�= <br /> 7 189 F �6 product odor) <br /> 14 3 Grades sandy, less product odor) <br /> Grades less <br /> .� gray to brown} <br /> r Grades no product odor) <br /> ar <br /> 16 rf; f� 10.8 G Grades finer sand} <br /> ,f{• ov <br /> tr r.•: <br /> ru rr: <br /> a Brown very fine sandy silt <br /> trr rrt <br /> L (Soft. wet, no product odor) <br /> 20 `: H <br /> Brown sand <br /> n .1: 9 V.; (Well sorted, loose, wet, no product odor) <br /> ;22 r Jj �........ <br /> ••r•••.••rr. Brown sand with gravel <br /> j= (Well graded, medium dense, wet, no product odor) <br /> 24 ::.•. Brown sand <br /> .SP. Well sorted, loose, wet, no product odor a <br /> e/M REV 9 Pane 1�� <br />