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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 />WELL NUMBER: SG -1 10 <br />Page I 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 />0) <br />0 <br />U) <br />a <br />Material Description <br />Well Diagram <br />o <br />co <br />0 <br />GW <br />aWELL <br />GRADED GRAVEL WITH SAND AND COBBLES <br />Noll Cement <br />(GW) <br />5 <br />S P <br />Bentonite <br />POORLY GRADED SAND (SP) black sand <br />Gravel <br />10 <br />10 <br />filter pack <br />Bentonite <br />15 <br />-- - ---- <br />X X X <br />X X X X <br />- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - <br />SILTSTONE, brown, moderately cemented, laminated <br />15 <br />XX X X <br />X X X X <br />2 0------------AdL,j <br />X X X X <br />j�D -------------------- - <br />SAND (SP) black and brown <br />2 <br />25-- <br />2 <br />J., <br />--- <br />X X X X <br />- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - <br />SILTSTONE, brown, moderately cemented, laminated <br />30-- <br />X X X X <br />30--. <br />XX X X <br />X X X X <br />X X X X <br />XX X X <br />35-- <br />X X X X <br />X X X X <br />X X X X <br />35--: <br />40-- <br />X X X X <br />X X X X <br />X X X X <br />X X X X <br />40 T <br />X X X X <br />X X X X <br />45 <br />-S�P - <br />X X X X <br />.. . .: .:. -- <br />- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - <br />POORLY GRADED SAND (SP) black sand <br />X X X X <br />X X X X <br />-f - --- - - - - - - - - - - - - - - - - - <br />SILTSTONE, brown, moderately cemented <br />-4 Gravel <br />50-- <br />X X X X <br />X X X X <br />50 <br />filter pack <br />X X X X <br />X X X X <br />X X X X <br />55-- <br />XXXX <br />X X X X <br />55 <br />X X X X <br />X X X X <br />X X X X <br />60-- <br />X X X X <br />XXXX <br />XX X X <br />GO <br />X X X X <br />SID <br />- - <br />- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - <br />POORLY GRADED SAND (SP) black sand <br />65------ <br />X*" X X <br />X X X X <br />XX X X <br />X X X X <br />- - - - - - - - - - - - <br />EFoWC, moderately cemented <br />65--1...1.'-1. <br />70-- <br />X X X X <br />X X X X <br />XX X X <br />X X X X <br />70 <br />75-- <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 />M <br />75 <br />X X X X <br />X X X X <br />80-- <br />X X X X <br />8 <br />XXXX <br />XX X X X <br />F--74XX <br />X X X X <br />--4-4X.t <br />- - - - - - - - - - - - - - - - - - - <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 />-1 <br />.7 <br />