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h Proj. No.: 143626.131.FW <br /> aC�-3 2 3'hl;i H I L L <br /> SOIL BORING LOG <br /> Project: PG&E Gas Gathering Drilling Contractor: Gregg Drilling <br /> Drilling Method& Equipment: Rhino Rig-8" Hollow Stem Logger: M. Medina/D. Kinney <br /> Sam le i Soil Description _ Comments <br /> o PID Soil name, uscs group symbol,color, 'Depth of casing, drilling rate, <br /> ma 2:, Reading ;moisture content, relative density or (drilling fluid loss,tests and <br /> t > (ppm) ;consistency,soil structure,mineralogy ;instrumentation <br /> fl. E ~p U <br /> O N z 0 Cc <br /> Elevation: Location: Thornton Boring No.20 MW-2 <br /> Start: 1/06/98 Finish: 1/06/98 Water Level: <br /> Sheet 1 of 1 <br /> ._......_--- ----. ...__._.._.__.._..---•--------_.__--- --------._-.-.-._.__..___..•.---_—_.� <br /> e !POORLY GRADED SAND WITH SILT(SP-SM),yellowish:Hand angered to 5 feet <br /> q! 0 `brown(10YR,5/4),90%very fine sand,10%low-plasticity_ <br /> fines,loose,moist <br /> p <br /> - - <br /> 5.0 <br /> ]XI I o i <br /> 0 LEAN CLAY(CLI dark gray(GLEY,4/N),trace roots,trace <br /> ::fine sand,iron-oxide staining common,firm,moist <br /> { i _ <br /> • I i I <br /> } SANDY LEAN CLAY(CL)dark gray(GLEY,4/N),70%low- <br /> I 1 <br /> plasticity fines,30%fine sand,moist <br /> 10.0 i I 0 J @19:first encountered groundwater <br /> - <br /> �' - <br /> i <br /> ;;CLAYEY SAND(SC},dark gray(GLEY,4/N),20%low to <br /> 1 i j 0 moderately plastic fines,80%fine to medium sand,wet <br /> i <br /> 1 0113':60%sand <br /> t <br /> i 0 <br /> 15.0 i <br /> FAT CLAY(CH)dark bluish gray(106,4/1),trace very <br /> fine sand,moist <br /> 20.0 0 <br /> BORING TERMINATED AT 20 FEET <br /> BORING CONVERTED TO MONITORING WELL <br /> I <br /> i <br />