Laserfiche WebLink
ALTON GEOSCIENCE, Inc. BORING NO. <br /> PROJECT NO. 30-136 PATE DRILLED 9-26-90 <br /> LOG OF EXPLORATORY CLIENT Mobil Oil Corporatlon B-2 <br /> BORING E <br /> LOCATION 500 E.Grantline Road, Tracy,CA WELL NO. <br /> ■i <br /> LOGGED BY W.ShiPP APPROVED BY AW-2 <br /> FIELD SKETCH OF BORING LOCATION <br /> DRILLING METHOD C.M.E. 75 10' HSA HOLE DIAM. 10.5' <br /> See Attached SAMPLER TYPE Modified California Split Spoon <br /> CASING DATA 4'diameter,Schedule 40, PVC,5'solid, 20' erf. <br /> TOP OF CASING ELEVATION 33.16'above msl DRILLER West Hazmat Drillin <br /> Q WATER LEVEL 21.79'above msI <br /> ^ LU <br /> ' 1 DATE 10-1-90 <br /> 1A `° LL g TIME 1130 hrs <br /> m DESCRIPTION <br /> Locking is Box <br /> 0 <br /> 0 <br /> 2 Medium stiff,damp, brown Silt;trace sand. <br /> 4 Blank <br /> PVC <br /> 7,14. 6 Casing MIL ; Very stiff, moist, brown, sandy Sift. <br /> 20 0 8 <br /> 10 Stiff, saturated, brown, sandy Sift. <br /> 10,10, 3f <br /> 10 12 <br /> 0.020' <br /> 14 Slotted <br /> PVC <br /> '• ; Firm, saturated, brown, sandy Sift. <br /> 4,3,6 Casing <br /> 16 , <br /> , <br /> 18 <br /> of <br /> 20 Stiff, saturated, light brown, silty Clay; sandy. <br /> 5,6,11 <br /> 22 CL <br /> 24 <br /> 3,4,6 26 Firm, saturated, light brown, silty Clay;trace sand. <br /> End Cap Total boring depth-26.5 feat <br /> 28 SZ Water encountered during drilling <br /> a Stabilized Water Level _ <br /> 30 Portland Cement Sample submitted for laboratory analysis <br /> Sand#3 Lonestar Q] Driven sample <br /> f�f• Bentonite Pellets <br />