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LA Vector Engineering, Inc. 143E Spring Hill Drive Grass Valley, CA 95945 Telephone: 530-272-2448 Fax: 530-272-8533 WELL NUMBER: - 119 Page 1 of 1 Project: LFG Monitoring Well Installation Remarks: Client: San Joaquin County Location: Foothill Sanitary Landfill 6484 North Waverly Road, Linden, CA rn J Q N Material Description Well Diagram ScCL Drilling Date Started: 7/30/2009 Time Started: 2:25pm CLAYEY SAND WITH GRAVEL (SC) dark grayish brown Date Completed: 7/31/2009 Time Completed: 12:00pm emen Elevation (ft): 223.479 Total Depth (ft): 64 Logged By: Kristin Sample, PE (10YR 4/2), dry, approximately 20 % fines, 65 % fine- to Sampling Method: Grab from cuttings 5_____ - medium -grained sand, 15 % gravel (subrounded, up to 1/2 in.) 5 Bentonite SM -,— SILTY SAND (SM) brown (7.5Y 4/4), dry, low plasticity, 10 approximately 20 % fines, 80 % fine- to medium -grained sand, 10 .' Gravel filter ck p < 5 % gravel 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 2O •' 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 45 ' 50 50-:.. - more fines, approximately 60 % fines, 40 % sand Gravel 55 55 :. filter pack 60 60 ' . - same, except brown (10Y 4/3), approximately 70 % fines, 30 % fine-grained sand 65— 65_ 70 = 70-- 0_75= 75-- 75-- 5=80= 80-- 0= 80-- Drilling Company: PC Exploration Date Started: 7/30/2009 Time Started: 2:25pm Drilling Method: Hollow Stem Auger Date Completed: 7/31/2009 Time Completed: 12:00pm Boring Diameter: 8 in Elevation (ft): 223.479 Total Depth (ft): 64 Logged By: Kristin Sample, PE Groundwater Level: NFWE Sampling Method: Grab from cuttings