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SECOR <br /> Intemat onal Incorporated <br /> Logged By Date Drilled Drilling Contractor Project Name Method/Equipment Well Number <br /> CASCADE 7-Eleven#32262 HOLLOW STEM AUGER <br /> K G 10/16/03 DRILLING TRACY, CALIFORNIA CAL-MOD SPLIT SPOON MW-6D <br /> See"Legend to Logs for Boring Surface Groundwater Depth(ft) Total Dnve Drop <br /> sampling method, Diann(m) Elev(ft) Depth(ft) wt(lb'v Dist(in} <br /> classifications and laboratory <br /> testiniz methods 8 510 140 30 <br />' Well V -5, z <br /> Construction �& o Description <br /> r e <br /> 31 As above <br /> e s 43 145 <br /> 29 <br /> SILT with SAND(ML) hard,low plasticity,fine-grained <br /> sand,wet, (0,25,65,10) 54 44 sand, <br /> 1146 <br /> t <br /> 30 1111 <br /> Bailed--25 gal from conductor casing prior to dnlltng @30 <br />' p ° <br /> 3-3/4" Steel Conductor casing installed 10/15/03 <br /> ° Drill through wood plug in order to sample below <br /> y <br /> 35 SILT(ML) (poor recovery&wet) <br /> ° <br /> Poor recovery <br /> 52 SILT and SAND brown(10YR-5/3),fine-grained sand, 0 <br /> hard,wet,low plasticity,some wood fragments <br /> 40 (0,15,75,20) <br /> 31 As above,decreasing sand&clay(0,5,85,10) MW-6 850 <br />' • <br /> BENTONM 12 @41' <br /> 26 MW-6 855 <br />' SILT. brown,very stiff,medium plasticity,wet 943' <br /> (0,10,75,15) 11 <br /> 23 At 42 Y increased Clay,trace sand(0,5,80,15) MW-6 900 <br />' #2 SAND 45 22 945' <br /> ' 2"DIA PVC 25 As above,decreased clay,trace sand,wet(0,5,90,5) MW-6 905 <br /> 0 020" <br /> SLOTTED 02 <br /> @47' <br /> SCREEN 18 MW-6 910 <br /> @49' <br /> x 03 <br />' The substrata descnptions above are generalized representations and based upon visual/manual classification of cuttings and/or <br /> samples obtained during drilling Predominant material types shown on the log may contain different materials and the change from <br /> one predominant material type to another could be different than indicated Descriptions on this log apply only at the specific location <br /> at the tune of drilling and may not be representative of subsurface conditions at other locations or times <br /> . Project No 77EL 32262 03.0502 Date 11/04/2003 Log of Well <br /> MW1-6 GPJ Figure <br /> LOG OF BOREHOLE <br /> (sheet 2 of 3) <br />