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' ® GROUNDWATER <br /> iD TECHNOLOGY,INC_ Monitoring Well OW-3 Drilling Loc <br /> oJect pC & E / TRACY Owner PACIFIC GAS & ELECTRIC CO. Sketch Map <br /> .ocatton TRACY,CA Project Number 203-799-8258 <br /> ' )ate Drilled 1/4/88 Total Depth of Hole 26.5 FT Diameter 10.5 IN <br /> Surface Elevation Water Level Initial 9 FT 24-hour <br /> ' Screen: Dia. 4 IN Length 20 FT Slot Size -020 IN <br /> rasing: Dia. 4 IN Length 5 FT -Type PVC <br /> Drilling Company SIERRA PACIFIC Drilling Method HOLLOW STEM AUGER <br /> 1 -)riller LYNN PERA Log by C. DeSOC10 Notes <br /> geologist / Engineer License No. 4-3,94 <br /> € Description/Soil Classification <br /> g 3 (Color,Texture,Structures) <br /> 0 4 Inch asphalt over 8 Inch base course <br /> Dark brown-grayish black silty clay with some course sand 4 <br /> ' 2 p and fine gravel <br /> 0 0 (Medium stiff, moist, no product odor) <br /> Grades lighter color to brown) <br /> Grades with no sand or gravel) <br /> (Grades sandy) <br /> Brown sandy, silty clay <br /> ' 6 <br /> 4CL (Medium stiff, moist, no product odor) <br /> q 5 (Grade less sandy) <br /> 8 00 <br /> gg (Grade more sandy) <br /> Encountered water 1/4/88 (1015 hours) <br /> Brown sandy silt <br /> i] <br /> (Sot, wet, no product odor) <br /> F (Grades more sandy) <br /> 2 G 3 Brown fine to course sand <br /> 1 SIIV` Well graded, loose, wet, no product odor) <br /> .zsss}s, <br /> Grades silty) <br /> '14 <br /> Brown silty sand <br /> 1 0.0 (Poorly sorted, medium dense, wet, no product odor) <br /> 16 - r , <br /> tf: <br /> 18 <br /> •.•. <br /> f Brown silty, fine sandy clay <br /> 20 �� (Medium stiff, wet, no product odor) <br /> V� 0 0 J CL <br /> ri <br /> 22 r## f <br /> ti <br /> ' 24 : - Brown fine to coarse sand <br /> 5W� Well araded. loose, wet, no product odor <br /> t„ir <br /> It Pace of <br />