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[A <br />A <br />i <br />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 -103 <br />Page 2 of 2 <br />Project: LFG Monitoring Well Installation <br />Remarks: <br />Client: San Joaquin County <br />Hollow stem auger rig encountered refusal at 13 ft. <br />Location: Foothill Sanitary Landfill <br />Well completed with air rotary rig. <br />6484 North Waverly Road, Linden, CA <br />U) <br />0) <br />0 <br />Material Description <br />Well Diagram <br />a) <br />SILTY SAND (SM) continued <br />at 82ft: dark yellowish brown (10YR 4/6), approximately 20 % <br />90-- low plastic fines, 80 % fine-ained sand go--. <br />........ — — — -----------g — — — — — — — — — — — — — — — — — <br />SANDSTONE, brown, moderately cemented <br />95-- ....... 95 <br />100 1001. <br />105-- 105= <br />110-- 110__ <br />115-- <br />120 = 120-- <br />125-- 125-- <br />130-- 130-- <br />135-- 135-- <br />140-- 140-- <br />145-- 145-- <br />150-- 150-- <br />155-- 155-- <br />160-- 160-- <br />165-- 165 -- <br />Up 17f) <br />Drilling Company: PC Exploration/Westex <br />Date Started: 7/29/2009 Time Started: 12:20pm <br />Drilling Method: HSA/Air Rotary <br />Date Completed: 8/7/2009 Time Completed: 1:35pm <br />Boring Diameter: 8-5/8 in <br />Elevation (ft): 254.86 Total Depth (ft): 100 <br />Logged By: Kristin Sample, PE <br />Groundwater Level: NFWE <br />Sampling Method: Grab from cuttings <br />