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Vector Engineering, Inc. 143E Spring Hill Drive Grass Valley, CA 95945 Telephone: 530-272-2448 Fax: 530-272-8533 Project: LFG Monitoring Well Installation Client: San Joaquin County Location: Foothill Sanitary Landfill 6484 North Waverly Road, Linden, CA 0) 15:CL U s � m 'L^ V Remarks: Material Description -111 Page 2 of 2 Well Diagram Drilling Company: PC Exploration Date Started: 8/13/2009 Drilling Method: Hollow Stem Auger Date Completed: 8/17/2009 Boring Diameter: 8 in Elevation (ft): 287.902 Logged By: Kristin Sample, PE Groundwater Level: NFWE Sampling Method: Grab from cuttings Gravel filter pack Time Started: 2:50pm Time Completed: 12:00pm Total Depth (ft): 128 SANDY CLAY (CL) continued 90 90 -same, except dark yellowish brown (10YR 4/4) 95 95 100 100 105 SC CLAYEY SAND (SC) dark yellowish brown (10YR 4/4) 105 approximately 40 % medium plasticity fines, 60 % fine- to medium -grained sand (mostly fine) 110 :. 110 115 115 CL SANDY CLAY (CL) dark yellowish brown (10YR 3/4) moist, 120 120 approximately 50 % medium plasticity fines, 50 % fine-grained sand 125 125 130-- 130-- 30-135- 135-- 135- 140— 140_ 145 - 145- 150 - 150- 155 - 155- 160-- 160- 165 - 165- - = nn - Drilling Company: PC Exploration Date Started: 8/13/2009 Drilling Method: Hollow Stem Auger Date Completed: 8/17/2009 Boring Diameter: 8 in Elevation (ft): 287.902 Logged By: Kristin Sample, PE Groundwater Level: NFWE Sampling Method: Grab from cuttings Gravel filter pack Time Started: 2:50pm Time Completed: 12:00pm Total Depth (ft): 128