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n 13 Vector Engineering, Inc. 143E Spring Hill Drive Grass Valley, CA 95945 Telephone: 530-272-2448 Fax: 530-272-8533 WELL NUMBER: R t Page 2 of 2 Project: LFG Monitoring Well Installation Remarks: Client: San Joaquin County Hollow stem auger rig encountered refusal at 30 ft. Location: Foothill Sanitary Landfill Well completed with air rotary rig. 6484 North Waverly Road, Linden, CA _ rn J CL s V � o ? n Material Description Well Diagram 0 Drilling Company: PC Exploration/Westex Date Started: 7/29/2009 Time Started: 12:55pm Drilling Method: HSA/Air Rotary Date Completed: 8/6/2009 Time Completed: 12:30pm Boring Diameter: 8-5/8 in Elevation (ft): 254.295 Total Depth (ft): 98 Logged By: Pete Holland, CEG Groundwater Level: NFWE Sampling Method: Grab from cuttings x " x x x x x x SILTSTONE, brown, moderately cemented, trace sand X x x x 90 — X x x x — -- . 90 SANDSTONIE, black, weakly to moderately cemented ' --- x x x x xxxx -SILTSTONE, brown, moderately cemented 95 xxxx 95 x x x x X x x x x x x x 100 - 100-- 00=105- 105-- 105-- 05=110- 110-- 110-- 10=115-120- 115-- 120- 120-- 20=125- 125- 125-- 25=130- 130-- 130-- 30=135- 135-- 135-- 35=140- 140-- 140-- 40=145- 145-- 145- 150-- 150-- 50-155- 155-- 155-- 55-160- 160-- 160-- 60-165- 165-- 165- 7n - -- - Drilling Company: PC Exploration/Westex Date Started: 7/29/2009 Time Started: 12:55pm Drilling Method: HSA/Air Rotary Date Completed: 8/6/2009 Time Completed: 12:30pm Boring Diameter: 8-5/8 in Elevation (ft): 254.295 Total Depth (ft): 98 Logged By: Pete Holland, CEG Groundwater Level: NFWE Sampling Method: Grab from cuttings