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Vector Engineering, Inc. <br />143E Spring Hill Drive <br />Grass Valley, CA 95945 <br />Telephone: 530-272-2448 <br />Fax: 530-272-8533 <br />Project: LFG Monitoring Well Installation <br />Client: San Joaquin County <br />Location: Foothill Sanitary Landfill <br />6484 North Waverly Road, Linden, CA <br />m <br />L7 J <br />s U � <br />0 = a <br />5 <br />10 <br />15 <br />20 <br />25 <br />30 <br />35 <br />40 <br />45. <br />ITTELL NUMBER: SG -12 <br />Page I ofi <br />Remarks: <br />Hole overdrilled to 68.5 ft. <br />Placed 0.5 of gravel at bottom. <br />Deep probe placed at 68 ft. as <br />Material Description <br />ML I I I I I SANDY SILT (ML) brown moist, approximately 30 % <br />fine-grained sand, 70 % fines, easy drilling <br />SM SILTY SAND (SM) brown moist, dense, approximately 60 % 10 <br />sand, 40 % fines <br />15 <br />_______ ----- 20 <br />SP -SM ::.::::: POORLY GRADED SAND WITH SILT (SP -SFA) black, <br />approximately 80 % fine-grained sand, 20 % fines <br />--------------------------, -------- <br />CL SANDY CLAY (CL) brown, moist, low plasticity ER <br />approximately 30 % sand, 70 % fines <br />50 / <br />SMSILTY SAND (SM) brown moist, approximately 60 % sanf, <br />55--40 % fines <br />60 <br />ML I SANDY SILT (ML) brown moist, nonplastic, harder drilling <br />I <br />M <br />70-- <br />75 <br />0=75 = <br />80 = <br />45 <br />50 <br />55. <br />60. <br />65_ <br />70-- <br />75-- <br />80-- <br />Drilling <br />0=75=80= <br />Well Diagram <br />Bentonite <br />I Gravel <br />filter pack <br />Bentonite <br />-4 Gravel <br />r <br />ifilter pack <br />i <br />Bentonite <br />I Gravel <br />filter pack <br />Drilling Company: Technicon Date Started: 7/30/2009 Time Started: 3:40pm <br />Drilling Method: Hollow Stem Auger Date Completed: 7/31/2009 Time Completed: 12:OOpm <br />Boring Diameter: 8 in Elevation (ft): 228.202 Total Depth (ft): 68.5 <br />Logged By: Pete Holland, CEG Groundwater Level: NFWE <br />Sampling Method: Grab from cuttings <br />