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1 <br /> ❑ ® GROUNDWATER <br /> DED TECHNOLOGY,INC. pyo_2 Drilling Loc <br /> Monitoring Well 9 <br /> oJect PG do E / TRACY Owner PACIFIC GAS do ELECTRIC CO. Sketch Map <br /> cation TRACY,CA Project Number 203-799-8258 <br /> Date Drilled- 1/4/88 .Total Depth of Hole 26.5 FT Diameter 10.5 IN <br /> Surface Elevation Water Level Initial 9.5 FT 24—hour <br /> Screen: Dia. 4 IN Length 20 FT Slot Size •0201N <br /> ' Caaing: Die. 4 IN Length 5 FT -Type PVC <br /> Drilling Company SIERRA PACIFIC Drilling Method HOLLOW STEM AUGER <br /> Driller. LYNN PERALog by C. DeSOC10 Notes <br /> t Leak in headspace <br /> Geoioglst / Engineer License No. '¢39¢ container <br /> s g¢ 3 Description/Soil Classification <br /> .5 (Coior,Texture,Structures) <br /> t0 ' 3 inch asphalt over 6 Inch base course <br /> 0 <br /> Black silty clay <br /> 2 4 CL (Medium stiff, moist, strong odor—Lampblack [PNA]) <br /> ' oa (Grades lighter color to brown) <br /> 4 r Brown--gray silty clay <br /> (Medium stiff, moist, slight product odor) <br /> C <br /> ' fi r, Green—gray silty clay <br /> 666 A (Soft, moist, strong product odor) <br /> L (Grades very moist, strong product odor) <br /> 466 <br /> 70 538 VEncountered water 1/4/88 (1440 hours) <br /> ' ,= 11 CL Brown sllty cloy with minor sand <br /> +412 E ' (Medium stiff, wet, product odor) <br /> 12 ;�; (Grades grayish wuth Ane to medium gravel, wet, strong <br /> ' 189 F 13 product odor) <br /> 14 , Grades sandy, less product odor) <br /> Grades less gray to brown) <br /> { Grades no product odor) <br /> = a <br /> Yr <br /> 16 -- 10.8 G Grades finer sand) <br /> 18 Brown very fine sandy silt <br /> L (Soft, wet, no product odor) <br /> 20 S=i <br /> = H Brown sand <br /> _ Sib•. <br /> S 9 (Well sorted, loose, wet, no product odor) <br /> 22 r : ;'t't � Brown sand with gravel <br /> (Well graded, medium dense, wet, no product odor) <br /> • ;r tidti=• <br /> �7 Brown sand <br /> ' 24 Well sorted, loose, wet, no product odor <br /> ,/aa Rcv. a Paae�of� <br />