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Vector Engineering, Inc. <br /> 143E Spring Hill Drive WELLSG-109 <br /> Grass Valley, CA 95945 Page 2 of 2 <br /> Telephone:530-272-2448 <br /> Fax: 530-272-8533 <br /> Project: LFG Monitoring Well Installation Remarks: <br /> Client: San Joaquin County Hole overdrilled to 170 ft. <br /> Location: Foothill Sanitary Landfill Placed 4 ft of gravel at bottom. <br /> 6484 North Waverly Road, Linden, CA Deep probe placed at 166 ft, as designed. <br /> N J <br /> QMaterial Description Well Diagram <br /> o <br /> 0 <br /> SILTY SANDSTONE brown, very fine-grained, lenses of <br /> siltstone <br /> 90 90 <br /> 95 95 <br /> 100 --- = ----------------------------------- <br /> 100 <br /> X X X X SILTSTONE, brown, moderately cemented, laminated :. <br /> X x x x <br /> x x x x <br /> ---------------------------------- <br /> 105 SP POORLY GRADED SAND (SP)red and black 105 <br /> 110 110 <br /> --- �.� <br /> x X x x -SILTSTONE, brown, moderately cemented laminated <br /> 115 X X X X 115 <br /> X x x x <br /> SP POORLY GRADED SAND (SP)olive, fine-grained <br /> 120 120 <br /> 125 <br /> --- :�__.:- ------ 125 . •. Gravel <br /> X x x x -SILTSTONE, brown, moderately cemented filter pack <br /> X x x x <br /> - <br /> xxxx - - - -- -- <br /> 130 SP POORLY GRADED SAND (SP)yellowish brown(10YR 5/4) 130 <br /> 131135--:thin seams/lenses of siltstone from 135 - 145 ft 135 <br /> 140 140 • <br /> 145 145 <br /> 150 - <br /> 155 <br /> 50 155 155 <br /> 160 160 <br /> 165 165 <br /> 170 H70 I ` <br /> Drilling Company: Westex Date Started: 8/12/2009 Time Started: 1:00pm <br /> Drilling Method:Air Rotary Date Completed: 8/13/2009 Time Completed: 1:00pm <br /> Boring Diameter'. 8-5/8 in Elevation (ft): 326.281 Total Depth (ft): 170 <br /> Logged By: Pete Holland, CEG Groundwater Level: NFWE <br /> Sampling Method: Grab from cuttings <br />