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Pro'. No.: 143626.131.1-W <br /> 4r–"21%I H I LL <br /> SOIL BORING LOG <br /> Project: PG&E Gas Gathering Drilling Contractor: Gregg Drilling <br /> Drilling Method & Equipment: Hand Auger& Mark M5T Rhino, Geoprobe Logger: T. Poe <br /> Sam le Soil Description- _ — Comments <br /> o PID 7Soil name, uscs group symbol, color, Depth of casing, drilling rate, <br /> ma i>-, Reading moisture content, relative density or drilling fluid loss,tests and <br /> 0 � > <br /> ° (ppm) consistency,soil structure, mineralogy instrumentation <br /> c � OY <br /> a t _ 0 <br /> C C C <br /> Elevation: Location: Thornton !Boring No. 20 PZ-3 <br /> Start: 11/26/97 Finish: 11/26/97 Water Level: <br /> _ ------- -- - - Sheet 1of 1--- <br /> ----- - - -- --------- ._--...- -- -- -- - - -- ----._------- <br /> -- <br /> x0 FILL:CLAYEY GRAVEL(GC) iHand augered to 5 feet <br /> j FILL:SILTY SAND(SM),brown(10YR,3/2) <br /> –X: <br /> 4 / i 0 <br /> t <br /> i 0 POOLY GRADED SAND(SPS dark brown <br /> xl <br /> (10YR,3/3),less than 5%fines,moist <br /> – i SILTY SAND(SM),dark brown,30-40%silt, 'Began macro core <br /> i <br /> 60-70%sand,micaceous,moist - <br /> i •0.5/3.01 <br /> I LEAN CLAY(CL),dark greenish gray(5 BG,3/1), Driller notes strong hydrocarbon <br /> i :medium plasticity,moist,firm,roots _odor <br /> 10.0 t 4.0/4.0; — <br /> j i I <br /> 44 i <br /> 3.0/3.0' <br /> Collected grab groundwater sample <br /> 15.0 (Petrosense=0 ppm) <br /> BORING TERMINATED AT 15 FEET <br /> - BORING CONVERTED INTO PIEZOMETER <br /> 20.0 <br /> I - <br /> de ren P7.11 Primed:7/24/98 <br />