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Vector Engineering, Inc. <br />L -1 <br />143E Spring Hill Drive <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 <br />Remarks: <br />Client: San Joaquin County <br />Location: Foothill Sanitary Landfill <br />6484 North Waverly Road, Linden, CA <br />_ <br />S <br />U) <br />rn <br />J <br />- same, except brown (10YR 4/3), approximately 70 % fines, <br />L <br />v <br />� <br />Material Description <br />Well Diagram <br />aCL <br />i <br />:D <br />CL <br />80= 80-- <br />0=Drilling <br />DrillingCompany: PC Exploration <br />tD <br />Drilling Method: Hollow Stem Auger <br />Date Completed: 7/31/2009 Time Completed: 12:00pm <br />SC <br />Boring Diameter: 8 in <br />CLAYEY SAND WITH GRAVEL (SC) dark grayish brown <br />Cement <br />Logged By: Kristin Sample, PE <br />Groundwater Level: NFWE <br />(10YR 4/2), dry, approximately 20 % fines, 65 % fine- to <br />Bentonite <br />5 <br />_ <br />medium -grained sand, 15 % gravel (subrounded, up to 1/2 in.) <br />5 <br />SM`--------------- <br />— — —J— <br />SILTY SAND (SM) brown (7.5YR 4/4), dry, low plasticity, <br />10 <br />approximately 20 % fines, 80 % fine- to medium -grained sand, <br />filter 10 p <br />< 5 % gravel <br />Sc <br />CLAYEY SAND (SC) brown (7.5YR 4/4), moist medium <br />Bentonite <br />15 <br />plasticity, approximately 20 % fines, 80 % fine- to <br />15 <br />medium -grained sand, < 5 % gravel <br />20 <br />20 <br />25 <br />25 Gravel <br />- same, except approximately 40 % fines, 60 % fine-grained <br />filter pack <br />30 <br />sand <br />30-J.- <br />- same, except dark yellowish brown (10YR 3/4) <br />35 <br />35 .., . . <br />Bentonite <br />______ ____ _____ ____________ ___ <br />CL SANDY CLAY (CL) dark yellowish brown (10YR 4/4) moist, <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 />55 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 />0=75 <br />75= 75-- <br />5=80 <br />80= 80-- <br />0=Drilling <br />DrillingCompany: PC Exploration <br />Date Started: 7/30/2009 Time Started: 2:25pm <br />Drilling Method: Hollow Stem Auger <br />Date Completed: 7/31/2009 Time Completed: 12:00pm <br />Boring Diameter: 8 in <br />Elevation (ft): 223.479 Total Depth (ft): 64 <br />Logged By: Kristin Sample, PE <br />Groundwater Level: NFWE <br />Sampling Method: Grab from cuttings <br />