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GRCUNDWATER - - �� TECHNCL4GY,INC. Monitoring Well OW-'1 Drilling dog Project PG do E / TRACY Owner PACIRC GAS do ELECTRIC CO. Sketch Map Location TRACY,CA Project Number 203--799-8258 8 Date Drilled 12 22Total Depth of Hole 26.5 Fr Diameter 10.5 IN Surface Elevation Water Level Initial 8.5 FT 24—hour Screen: Dia 2 IN Length 20 FT Slot Size •D10 IN Casing: Dia, 2 IN Length 5 FT Type PVC Drilling Company SIERRA PACIFIC Drilling Method HOLLOW STEM AUGER Driller BEN HUNT Log by C. DeSOC10 Notes Geologist / Engineer -License No. 394- Description/Soil Classification (Color.Texture,Structures) 0 3 inches of asphalt over 6 Inch base course CL Black silty -clay ,R (Medium stiff, moist, s]lght odor—Lampblock [PNA]) (Grades lighter color) �. Black silty clay 4 CL (Medium stiff, moist, no product odor) fi z Block silty clay CL (Medium stiff, moist, slight odor—Lampblack [PNA]) 15 c A Brown silty clay 8 I (Medium stiff, moist, no product odor) 4 CL AEncountered water 12/22/87 (0830 hours) Black silty clay - 10 - (Medium o,0 88 stiff, moist.. slight odor--Lampblock [PNAD r 70 LBrown sandy silt (Loose, moist, no product odor) ` • Brown fine sandy, silty clay _ 12 (Medium stiff, wet. no product odor) !` L (Grades less sandy) 14 Brawn silty clay (Medium stiff, wet,. no product odor) 0.0 G (Grades more sandy) 16 - g 0 ML Brown fine sandy slit (Medium stiff, wet, no product odor) 1 8 (Grades more sandy) (Grades with line gravel) (Grades with some clay) 20 = � r H �•0 Brown silty sand with fine medium gravel t f (Poorly sorted, medium dense, wet, no product odor) 22 S (Grades less gravel) 24 _ Brown sand .•.SP (Well sorted, medium dense, wet, no product odor) Va REv. s Poge ofd