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Vector Engineering, Inc. 143E Spring Hill Drive WELL -11 Grass Valley, CA 95945 Page 1 of 1 Telephone:530-272-2448 Fax: 530-272-8533 Project: LFG Monitoring Well Installation Remarks: Client: San Joaquin County Location: Foothill Sanitary Landfill 6484 North Waverly Road, Linden, CA rn U) jo Material Description Well Diagram CL o 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 ---------------------------------, SILTY SAND(SM) brown (7.5YR 4/4), dry, low plasticity, 10 approximately 20%fines, 80 % fine-to medium-grained sand, �o 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 --- ' ' —————————————————————————————————— 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 T. -more fines, approximately 60%fines, 40% sand Gravel 55 55 filter pack 60 60 -same, except brown (10YR 4/3), approximately 70 %fines, 30%fine-grained sand _ 65 = 65= 70= 70-- 75 0=75 = 75. 80 _ 80. 85 Drilling Company:Com an : 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