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Vector Engineering, Inc. <br />143E Spring Hill Drive WELL NUMBER: SG -105 <br />Grass Valley, CA 95945 Page 1 of 2 <br />Telephone: 530-272-2448 <br />Fax: 530-272-8533 <br />Project: LFG Monitoring Well Installation Remarks: I <br />Client: San Joaquin County <br />Location: Foothill Sanitary Landfill <br />6484 North Waverly Road, Linden, CA <br />rn <br />U) J <br />o ? a Material Description Well Diagram <br />CU <br />ML <br />5 <br />10 <br />GM, <br />15 <br />GM <br />20-- <br />25 CL <br />30- <br />35 <br />04550 40- <br />45-- <br />50 <br />55 <br />60- <br />65 <br />70- <br />75 <br />80 <br />SANDY SILT (ML) reddish yellow (5YR 6/6), moist, loose, <br />low plasticity <br />-5ft: same, except brown (7.5YR 5/3) 5 <br />-7ft: layer of medium/coarse gravel <br />10 <br />° SILTY GRAVEL WITH SAND (GM) nonplastic <br />------------------------------- <br />SANDY CLAY WITH GRAVEL (CL) medium plasticity — 15 <br />SILTY GRAVEL WITH SAND (GM) brown, nonplastic, moist, <br />loose <br />0 <br />SANDY CLAY (CL) brown, moist, medium to high plascticity <br />minor gravel (<5%) <br />- same to bottom, except dark yellowish brown (10YR 3/4), 60 - <br />80 % medium plasticity fines, 20 - 40 % fine-grained sand, stiff <br />I Bentonite <br />I Gravel <br />filter pack <br />Bentonite <br />filter pack <br />Drilling Company: PC Exploration Date Started: 8/6/2009 Time Started: 9:30am <br />Drilling Method: Hollow Stem Auger Date Completed: 8/10/2009 Time Completed: 11:35pm <br />Boring Diameter: 8 inch Elevation (ft): 260.59 Total Depth (ft): 101 <br />Logged By: Rich Peevers Groundwater Level: NFWE <br />Sampling Method: Grab from cuttings <br />