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u <br />Vector Engineering, Inc. <br />143E Spring Hill Drive <br />Grass Valley, CA 95945 <br />Telephone: 530-272-2448 <br />Fax: 530-272-8533 <br />CLIENT San Joaquin County <br />PROJECT NUMBER 03160020400 <br />DATE STARTED 05/24/10 COMPLETED 05/25/10 <br />DRILLING CONTRACTOR Gregg Drilling <br />DRILLING METHOD Hollow Stem Auger 8" <br />LOGGED BY M. Christie CHECKED BY P. Holland, CEG <br />PROJECT NAME Hamev Lane Landfill <br />PROJECT LOCATION <br />GROUND ELEVATION 85.96 ft HOLE SIZE 8 -inch <br />GROUND WATER LEVELS: <br />g AT TIME OF DRILLING 140.00 ft / Elev -54.04 ft <br />AT END OF DRILLING — <br />AFTER DRILLING 122.00 ft / Elev -36.04 ft <br />• <br />(Continued Next Page) <br />W <br />a.� <br />U <br />_ <br />W v <br />F— w <br />a j <br />vUi <br />g <br />o <br />MATERIAL DESCRIPTION <br />WELL DIAGRAM <br />M Z <br />U' <br />0 <br />SILTY SAND, (SM) brown, moist <br />SM <br />5 <br />— <br />-:6.0 <br />80.0 <br />-------------------------------------- <br />LEAN CLAY, (CL) brown, moist, stiff <br />CL <br />8.0 78.0 <br />SILTY SAND, (SM) gray, loose <br />SM <br />10 <br />— <br />:•: <br />10_0------------------------------------76.0 <br />SANDY SILT, (ML) reddish brown <br />ML <br />15 <br />= <br />15.0 71.0 <br />WELL GRADED SAND, (SW) brown, moist <br />SW <br />20 <br />— <br />•" <br />20.066.0 <br />-------------------------------------- <br />SANDY LEAN CLAY, (CL) gray, moist, stiff <br />25 <br />CL <br />CL <br />SANDY LEAN CLAY, (CL) gray, moist, very stiff <br />30 <br />— <br />30_00------------------------------------56.0 <br />CLAYEY SAND, (SC) gray, moist, medium dense <br />Sc <br />L35 <br />' <br />35.0 51.0 <br />(Continued Next Page) <br />