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LOG OF EXPLORATORY BORING <br /> ' PROJECT NUMBER 20939-011.001 BORING NO. GP-1 <br /> PROJECT NAME San Joaquin Co. Depart. of Public Works, Thornton, CA PAGE 1 OF 1 <br /> BY H. Duke DATE 4/14/98 SURFACE ELEV. NM ft. <br /> RECOVERY FID N W LITHO- WELL <br /> ii GRAPHIC DESCRIPTION DETAIL <br /> Put Z: COLUMN <br /> (ft/ft) (pPRI) _j <br /> ASPHALT <br /> FILL <br /> 0.0 SANDY SILT(ML), dark gray (7.5YR, N4/); 80% <br /> low-plasticity fines; 20% fine sand; trace medium <br /> to coarse sand; trace gravel; trace organics; damp. <br /> ' 3.5/4.0 1.5 <br /> As above. <br /> ' S <br /> As above; grades to 60% low-plasticity fines; 40% <br /> 0.0 . . fine sand; moist. <br /> SAND WITH SOME SILT(SP-SM),dark brown <br /> 4/14/98 (7.5YR, 4/3); 10% low-plasticity fines; 60% fine <br /> 3.0/4.0 0.5 . . sand; 30% medium sand; subangular; some mica; <br /> ' . : moist. <br /> ' 0.5 10 . . . As above; wet. <br /> ' 1.5/4.0 0.5 <br /> As above. <br /> ' 1.5/2.0 0.5 <br /> BORING TERMINATED AT 14 FEET. <br /> 15 <br /> 1 <br /> ' REMARKS 20 <br /> Boring advanced using direct-push GeoProbe equipment and sampled with a 2-inch-diameter macro-core sampler. <br /> ' Temporary well casing placed to collect a groundwater grab sample. Boring backfilled from bottom to 3-inches <br /> EOMONbelow ground surface with neat cement grout,and capped with asphalt. <br /> EM ON <br />