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Vector Engineering, Inc. <br /> 143E Spring Hill Drive WELL NUMBER: SG-1 19 <br /> Grass Valley, CA 95945 Page 1 of 1 <br /> Telephone: 530-272-2448 <br /> Fax: 530-272-8533 <br /> Project: LFG Monitoring Well Installation Remarks: <br /> Client: San Joaquin County <br /> Location: Foothill Sanitary Landfill <br /> 6484 North Waverly Road, Linden, CA <br /> 0) <br /> rU) J <br /> U Material Description Well Diagram <br /> m <br /> 0 <br /> SC CLAYEY SAND WITH GRAVEL (SC)dark grayish brown Cement <br /> (10YR 4/2), dry, approximately 20 %fines, 65 %fine-to <br /> 5 — medium--grained sand, 15 % gravel (subrounded, up to 1/2 in_)J— 5 Bentonite <br /> SM SILTY SAND (SM) brown (7.5YR 4/4), dry, low plasticity, <br /> 10 approximately 20 % fines, 80 %fine-to medium-grained sand, 10 Gravel <br /> < 5 % gravel filter pack <br /> SC CLAYEY SAND (SC) brown (7.5YR 4/4), moist medium Bentonite <br /> 15 plasticity, approximately 20 %fines, 80 %fine-to 15 <br /> medium-grained sand, < 5 %gravel <br /> 20 20 <br /> 25 25 <br /> Gravel <br /> -same, except approximately 40 %fines, 60 %fine-grained filter pack <br /> 30 sand 30 <br /> -same, except dark yellowish brown (10YR 3/4) <br /> 35 35 <br /> Bentonite <br /> 40 CL SANDY CLAY(CL) dark yellowish brown (10YR 4/4) moist, ao <br /> medium plasticity, approximately 50 %fines, 20 % fine-grained <br /> 45 sand 45 <br /> 50 50 <br /> more fines, approximately 60 % fines, 40 % Sand Gravel <br /> t55 55 filter pack <br /> 60 60-- <br /> -same, except brown (10YR 4/3), approximately 70 % fines, <br /> 30 %fine-grained sand <br /> 65 -- 65_ <br /> 70 = 70= <br /> 75 _ 75 <br /> 80 = 80- <br /> Drilling Company: PC Exploration Date Started: 7/30/2009 Time Started: 2:25pm <br /> Drilling Method: Hollow Stem Auger Date Completed: 7/31/2009 Time Completed: 12:00pm <br /> Boring Diameter: 8 in Elevation (ft): 223.479 Total Depth (ft): 64 <br /> Logged By: Kristin Sample, PE Groundwater Level: NFWE <br /> Sampling Method: Grab from cuttings <br />