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PROJECT: TRACY GRAVEL PITS 9 9 <br /> Tracy, California LO Of BOflil NO. GMX-26 <br /> BORING LOCATION: Northeast side of site ELEVATION AND DATUM: <br /> Not surveyed; datum is ground surface <br /> DRILLING CONTRACTOR: Precision Sampling Incorporated DATE STARTED: DATE FINISHED: <br /> 8/25/05 8/25/05 <br /> TOTAL DEPTH(ft.): MEASURING POINT: <br /> DRILLING METHOD: Direct push 58.0 Ground surface <br /> FIRST COMPL. <br /> DRILLING EQUIPMENT: SD-1 DEPTH TO WATER(ft.) 141.0 INA <br /> SAMPLING METHOD: Enviro-core sampling system [3' x 1.5"] LOGGED BY:M. Gilmore <br /> HAMMER WEIGHT: NA DROP: NA RESPONSIBLE PROFESSIONAL: I REG. NO. <br /> B. Turner PG 7807 <br /> SAMPLES (3 DESCRIPTION <br /> (Ua� N.r ? NAME(USCS): color, moist, %by wt.,plast.density,structure, REMARKS <br /> LU °�' C C o °o p Q a cementation,react.w/HCI,geo.inter. <br /> p M in m LL -- <br /> Surface Elevation: Not surveyed <br /> o SILTY SAND with GRAVEL(SM): grayish brown (10YR 5/2), <br /> N moist, 50%fine to coarse sand, 35%fine to coarse gravel, 15% — <br /> X nonplastic fines OVM =Thermo <br /> 1 Environmental <br /> Instruments 580B PID <br /> calibrated with 100 ppm <br /> 2 — isobutylene standard. <br /> 3- <br /> 4- <br /> x 4 X - <br /> 0 <br /> 5- <br /> 6- <br /> 7- <br /> 6 7 0 <br /> 8 - <br /> 9 - <br /> o _ <br /> 10- <br /> (6 <br /> N <br /> X ------------------------------------ <br /> 0 <br /> --------------------------------- -0 LEAN CLAY with SAND (CL): brown (10YR 4/3), moist, 85% <br /> 11 fines, 15%fine to medium sand, low plasticity, hard <br /> 12- <br /> 13- <br /> 2 13 0 - <br /> 0 <br /> 14- <br /> 15 <br /> 4 15 OAKBOREV(REV.3100) <br /> Geomatrix Consultants Project No.7066.001 Page 1 of 4 <br />