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Project Bridgestone/Firestone Stockton Log of Boring MW-3 <br />' Project Location 400 North El Dorado Street <br /> Project Number 11STO Sheet 1 of 2 <br />' Date(s) Logged Checked <br /> DnI125 1/25/2000 By A Drummond By J Gwinn <br /> Mne';n,d Hollow-Stem Auger SSize/BType 8-inch-OD continuous flight auger Totalof Borehole Depth 36 2 feet <br /> Drill Rig CME 75 Drilling Spectrum Exploration Surface 13 feet MSL(est) <br />' Type Contractor Elevation <br /> Groundwater 25 feet bgs during drilling, Sampling Modified California split spoon driven Top of Casing Not surveyed <br /> Level and Date 19 9 feet STOC at well completion Method with 1404b hammer/30-inch drop Elevation <br /> Diameter of Diameter of Type of Screen <br /> Hole(inches) 8 Well(inches) 2 Well Casing 2-inch-dia Schedule 40 PVC Perforation 0 010-inch slot <br />' Type of RMC of Seal(s)2112 Lonestar filter sand Type end De <br /> Sand Peck pth Hydrated bentonite pellets 9-12 feet,bentonite grout 1-9 feet <br /> Comments Elevation is approximated from USGS topo map Rain during drilling precluded PID monitoring <br />' SAMPLES u; <br /> �Yy <br /> Q N _O <br /> nw MATERIAL DESCRIPTION E 0E o f a- U REMARKS <br /> CL CL CL <br />' 41 N� CL - E p1 a d n C O <br /> Ww 0 E L° mplE m� �❑ — c <br /> Z m 0 LUQ io ma 0c��i <br /> 0 ° Concrete 5 inches thick Start at 0715 Hand <br /> Mast,dark brown SILTY CLAYEY SAND(SC-SM) fine-to auger to 5 ft <br /> coarse-grained,no staining no odor <br /> 10 <br /> t — — --- -- --- Start drilling with <br /> 5 12 Stiff slightly moist greenish gray SILTY CLAY(CL),low hollow-stem auger <br /> MW-3 5 plasticity no staining,no odor 0730 <br />�• 5 <br /> 1 10 14 <br /> MW-3-10 0735 <br />' 0 <br /> 13 16 Becomes reddish brown with sand <br /> MW-3-15 074D <br /> 1 -6 <br /> 20-114 0750 <br /> [lo recovery) - <br /> 40 Medium dense moist brownish yellow CLAYEY SAND <br /> CL (SC) fine-to medium-grained no staining no odor <br /> 0 25 12 Becomes wet <br /> MW-3-25 0800 <br /> LL <br /> o -15 Verystiff wet brownish yellow SANDY CLAY(CL) <br /> Z� no staining no odor <br /> Q <br /> 0 30 22 <br /> 8 <br /> R I 1 N ORION ENVIRONMENTAL INC <br />