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Vector Engineering, Inc. <br /> 143E Spring Hill Drive WELL NUMBER: SG-108 <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 <br /> Location: Foothill Sanitary Landfill <br /> 6484 North Waverly Road, Linden, CA <br /> M <br /> 0 <br /> U) <br /> Material Description Well Diagram <br /> X X X X <br /> X X X X <br /> X X X X <br /> X X X X SILTSTONE continued <br /> 90 -- X X X X <br /> X X X X sandy siltstone 90 <br /> XX X X <br /> X X X X <br /> X X X X <br /> 95 - X X X X 95— <br /> — X X X X <br /> XX X X <br /> X X X X <br /> X X X X 100 T <br /> 100 -- 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 /> 105 -- xx xxx xxx 105__� <br /> X X X X <br /> X X X X <br /> X X X X <br /> X X X X <br /> 110 XX X X 110 <br /> X X X X <br /> X X X X <br /> X X X X <br /> X X X X <br /> 115 -- X X X X X <br /> X X X 115 .1--4 Gravel <br /> X X X X <br /> X X X X filter pack <br /> X X X X <br /> 120 -- XX X X 120-: X. <br /> X X X X <br /> X X X X <br /> -———————————————————————————————————— <br /> SILTY SANDSTONE dark brown to black, fine-grained, <br /> 125 -- ..... weakly cemented, approximately 60% sand, 40% fines 125 <br /> 130— -130ft: increasing sand content 130 <br /> 135 135 <br /> 140-- ...... <br /> 140 <br /> 145 — 145-- <br /> 150150 <br /> SP —ffdk-Ly—GRADED D—(—S—P)—b—Ia—c black sand <br /> —————————— <br /> 55 _155- <br /> 160-- 160-- <br /> 165 — 165= <br /> 170 iza <br /> Drilling Company:Westex Date Started: 8/11/2009 Time Started: 11:30am <br /> Drilling Method:Air Rotary Date Completed: 8/12/2009 Time Completed: 12:20pm <br /> Boring Diameter: 8-5/8 in Elevation (ft): 309.255 Total Depth (ft): 155 <br /> Logged By: Pete Holland, CEG Groundwater Level: NFWE <br /> Sampling Method: Grab from cuttings <br />