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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 m U s V � Q D n. m 0 11,11 ELL NUMBER: SGA 10 Page I of I Remarks: Material Description SM SILTY SAND (SM) dark brown (10YR 3/3), moist, nonplastic, approximately 30 % fines, 70 % fine-grained sand 5_____ SC CLAYEY SAND (SC) dark yellowish brown (10YR 3/4) moist, low plasticity, approximately 20 % fines, 80 % 10 fine-grained sand, < 5 %gravel 15,,,, - 14ft: same, except dark brown (10YR 3/3) 20 Well Diagram f Bentonite Gravel filter pack Bentonite 25 Date Started: 7/30/2009 Time Started: 8:05am Drilling Method: Hollow Stem Auger Date Completed: 7/30/2009 Time Completed: 1:55pm Boring Diameter: 8 in -- Logged By: Kristin Sample, PE VVE Sampling Method: Grab from cuttings 25 --::,Gravel - more fines, approximately 30 % fines, 70 % sand, medium filterack p 30 plasticity 30 .. ,:: -more fines, approximately 40 % fines, 60 % sand ;• 35 _ 35 ' CL SANDY CLAY (CL) dark yellowish brown (10YR 4/4) moist, Bentonite medium plasticity, approximately 50 % fines, 50 % fine-grained 40 sand 4: 45 45—:. 50 50-1. Gravel 55 0 0 /o /o - same, except approximately 60 fines, fine-grained 40 filter pack 55 sand 60 60 - same, except brown (10YR 4/3), 70 % fines, 30 % sand 65-- 65-- 5=70_ 70--70-- 0=75= 75--75= 80—z 80-- o=R A Drilling Company: PC Exploration Date Started: 7/30/2009 Time Started: 8:05am Drilling Method: Hollow Stem Auger Date Completed: 7/30/2009 Time Completed: 1:55pm Boring Diameter: 8 in Elevation (ft): 223.428 Total Depth (ft): 63 Logged By: Kristin Sample, PE Groundwater Level: NFWE Sampling Method: Grab from cuttings