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U <br />• <br />Vector Engineering, Inc. <br />143E Spring Hill Drive <br />Grass Valley, CA 95945 <br />Telephone: 530-272-2448 <br />Fax: 530-272-8533 <br />WELL NUMBER: • <br />Page 2 of 2 <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 />o <br />aMaterial <br />Description <br />Well Diagram <br />o <br />0 <br />XX X X <br />X X X X <br />X X X X <br />SILTSTONE continued <br />90 <br />X X X X <br />X X X X <br />sandy siltstone <br />90 <br />X X X X <br />X X X X <br />XX X X <br />95 <br />X X X X <br />X X X X <br />X X X X <br />95 <br />X X X X <br />X X X X <br />100 <br />X X X X <br />X X X X <br />100 <br />X x x x <br />X x X x <br />X X x X <br />105 <br />X X X X <br />X X X X <br />105 <br />X X X X <br />X X X X <br />110 <br />X X X X <br />110 <br />X x x X <br />X x x X <br />115 <br />X x x X <br />XX X x <br />X X <br />115 <br />X X <br />Gravel <br />XX X X <br />filter pack <br />X X X X <br />120 <br />120 <br />X X X X <br />X X X X <br />--_ <br />SILTY SANDSTONE dark brown to black, fine-grained <br />125 <br />weakly cemented, approximately 60 % sand, 40 % fines <br />125 <br />130 <br />::::: <br />-130ft: increasing sand content <br />130 <br />: . <br />135 <br />:::::: <br />135-- <br />140-- <br />:::::: <br />140- <br />145- <br />:::::: <br />145 <br />5 <br />150SP <br />L7, <br />: <br />POORLY GRADED SAND (SP) black sand <br />:.. <br />155 <br />1155- <br />155 <br />160- <br />160- <br />160= <br />165 = <br />165= <br />Drilling Company: Westex <br />Date Started: 8/11/2009 Time Started: 11:30am <br />Drilling Method: Air Rotary <br />Date Completed: 8/12/2009 Time Completed: 12:20pm <br />Boring Diameter: 8-5/8 in <br />Elevation (ft): 309.255 Total Depth (ft): 155 <br />Logged By: Pete Holland, CEG <br />Groundwater Level: NFWE <br />Sampling Method: Grab from cuttings <br />