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Vector Engineering, Inc. <br />143E Spring Hill Drive WELL ®11 <br />Grass Valley, CA 95945 Pagel 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 166 ft. <br />Location: Foothill Sanitary Landfill Placed 6 ft of gravel at bottom. <br />6484 North Waverly Road, Linden, CA Deep probe placed at 160 ft, as designed. <br />m <br />S U) � <br />o j Q Material Description Well Diagram <br />0 <br />c7 <br />5% <br />GW <br />Cement <br />WELL GRADED GRAVEL WITH SAND AND COBBLES <br />�' <br />�--------------------------------J <br />5 <br />Sp <br />filter pack <br />'�4 Bentonite <br />POORLY GRADED SAND (SP) black sand <br />10-- <br />: <br />15 <br />: <br />■ <br />: <br />XXXX <br />x X X X <br />---------------------------------- <br />SILTSTONE, brown, moderately cemented, laminated <br />X x x x <br />XX X X <br />X X X X <br />20 <br />SP <br />----------------------------------- <br />POORLY GRADED SAND (SP) black and brown <br />25 <br />X X X X <br />X X X X <br />- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - <br />SILTSTONE, brown, moderately cemented, laminated <br />30 <br />XX X X <br />X X X X <br />X x x x <br />X x x x <br />xx x x <br />35 <br />xxxx <br />XX X X <br />X X X X <br />X X X X <br />X x x x <br />4O <br />X X X X <br />X X X X <br />X x x x <br />X xx x <br />X X x x <br />454C <br />-4.x-A <br />----------- <br />SP <br />_�- <br />POORLY GRADED SAND (SP) black sand <br />--- <br />X X X X <br />x x x x <br />SILTSTONE, brown, moderately cemented <br />X X X X <br />5O <br />X X X X <br />X x x x <br />X x x x <br />X x x x <br />X X X X <br />55 <br />X x x x <br />X x x x <br />X x x x <br />X x x x <br />X X X X <br />6O <br />X x x x <br />x x x x <br />E <br />x x X x <br />SP <br />^T <br />POORLY GRADED SAND (SP) black sand <br />65—--- <br />x —XX-- <br />X X X X <br />SILTSTONE, brown, moderately cemented <br />X x x x <br />X x x x <br />X x x x <br />70 <br />xxxx <br />x x x x <br />7 <br />X x x X <br />X x xx <br />X X x x <br />75 <br />X X X X <br />X X X X <br />7 <br />X x x x <br />X x x x <br />X x x x <br />x x x x <br />80 <br />x x x x <br />8 <br />X x x x <br />Xx x x <br />X x x x <br />RF--- <br />�.'`:—. <br />— — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — <br />Gravel <br />filter pack <br />Drilling Company: Westex Date Started: 8/13/2009 Time Started: 3:00pm <br />Drilling Method: Air Rotary Date Completed: 8/14/2009 Time Completed: <br />Boring Diameter: 8-5/8 in Elevation (ft): 319.807 Total Depth (ft): 166 <br />Logged By: Pete Holland, CEG Groundwater Level: NFWE <br />Sampling Method: Grab from cuttings <br />� <br />Cement <br />�4 Bentonite <br />filter pack <br />'�4 Bentonite <br />: <br />r� <br />: <br />■ <br />: <br />Gravel <br />filter pack <br />Drilling Company: Westex Date Started: 8/13/2009 Time Started: 3:00pm <br />Drilling Method: Air Rotary Date Completed: 8/14/2009 Time Completed: <br />Boring Diameter: 8-5/8 in Elevation (ft): 319.807 Total Depth (ft): 166 <br />Logged By: Pete Holland, CEG Groundwater Level: NFWE <br />Sampling Method: Grab from cuttings <br />