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[A <br />v <br />13 <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 />110 <br />Page 2 of 2 <br />Project: LFG Monitoring Well Installation <br />Remarks: <br />Client: San Joaquin County <br />Hole overdrilled to 166 ft. <br />Location: Foothill Sanitary Landfill <br />Placed 6 ft of gravel at bottom. <br />6484 North Waverly Road, Linden, CA <br />Deep probe placed at 160 ft, as designed. <br />rn <br />J <br />s <br />Us <br />tson <br />Material Description <br />Well Dia ram <br />g <br />:3 <br />a <br />m <br />C7 <br />SP <br />POORLY GRADED SAND (S) black sand <br />AR <br />90 <br />90 <br />95 <br />95 <br />100 <br />100 <br />:. <br />105 <br />105 <br />110 <br />XXz'z <br />xX X X <br />---------------------------------- <br />SILTSTONE, brown, interbedded sand <br />110 <br />X X X X <br />X X X x <br />115 <br />115 <br />X X X X <br />X X X X <br />SP <br />POORLY GRADED SAND (SP) black and brown, fine- to <br />120 <br />medium -grained <br />120 <br />125 <br />125 <br />Gravel <br />filter pack <br />130 <br />130 <br />T. <br />135 <br />135 <br />140 <br />X X X X X X X X <br />SILTSTONE, brown, moderately cemented <br />140 <br />X X X X <br />X X X X <br />SP <br />— — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — <br />POORLY GRADED SAND (SP) brown, fine-grained <br />145 <br />145 <br />150 <br />X:_X X..X. <br />X X X X <br />XX X X <br />— — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — <br />SILTSTONE, brown, moderately cemented <br />X X X X <br />X X X X <br />155 <br />X X X X <br />XXXX <br />XX X X <br />X X X X <br />X x x x <br />160 <br />X X X X <br />160— <br />X x x x <br />x x x x <br />165 <br />X x x x <br />X X X X <br />165 <br />izn <br />Drilling Company: Westex <br />Date Started: 8/13/2009 Time Started: 3:00pm <br />Drilling Method: Air Rotary <br />Date Completed: 8/14/2009 Time Completed: <br />Boring Diameter: 8-5/8 in <br />Elevation (ft): 319.807 Total Depth (ft): 166 <br />Logged By: Pete Holland, CEG <br />Groundwater Level: NFWE <br />Sampling Method: Grab from cuttings <br />