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Vector Engineering, Inc. 143E Spring Hill Drive Grass Valley, CA 95945 Telephone: 530-272-2448 Fax: 530-272-8533 is 0 WELL NUMBER: ®11 Page 1 of 1 Project: LFG Monitoring Well Installation Client: San Joaquin County Location: Foothill Sanitary Landfill 6484 North Waverly Road, Linden, CA Remarks: U) rn J = ;z UMaterial U)Q Descri tion P Well Diagram D m 0 Sc CLAYEY SAND WITH GRAVEL (SC) dark grayish brown Cement (10YR 4/2), dry, approximately 20 % fines, 65 % fine- to 5 _ medium -grained sand, 15 % gravel (subrounded, up to 1/2 in.) _ 5 Bentonite SM __ _ ___J SILTY SAND (SM) brown (7.5YR 4/4), dry, low plasticity, 10 approximately 20 % fines, 80 % fine- to medium -grained sand, 10 Gravel < 5 % gravel filter pack Sc CLAYEY SAND (SC) brown (7.5YR 4/4), moist, medium Bentonite 15 plasticity, approximately 20 % fines, 80 % fine- to 15 medium -grained sand, < 5 % gravel 20 20 25--25 Gravel - same, except approximately 40 % fines, 60 % fine-grained filter pack 30 sand 30 - same, except dark yellowish brown (10YR 3/4) 35 35 Bentonite 40 CL SANDY CLAY (CL) dark yellowish brown (10YR 4/4) moist, medium plasticity, approximately 50 % fines, 20 % fine-grained 45 sand 50 - more fines, approximately 60 % fines, 40 % sand 55 60 / // 60 - same, except brown (10YR 4/3), approximately 70 % fines, 30 % fine-grained sand 65 _ 65. 70-- 70= 75-- 75-- 80 5=80 - 80-- Drilling 0= Drilling Company: PC Exploration Drilling Method: Hollow Stem Auger Boring Diameter: 8 in Logged By: Kristin Sample, PE Sampling Method: Grab from cuttings Date Started: 7/30/2009 Date Completed: 7/31/2009 Elevation (ft): 223.479 Groundwater Level: NFWE Gravel filter pack Time Started: 2:25pm Time Completed: 12:00pm Total Depth (ft): 64 FIGURE 3