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Vector Engineering, Inc. <br />143E Spring Hill Drive WELL <br />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 />rn <br />J <br />L U Material Description Well Diagram <br />90 <br />95 <br />100 <br />105 <br />110 <br />115 <br />120 <br />125 <br />130 <br />135 <br />140 <br />145 <br />150 <br />155 1 <br />160 = <br />165 = <br />SILTSTONE continued <br />sandy siltstone <br />---------------------------------- <br />SILTY SANDSTONE dark brown to black, fine-grained <br />weakly cemented, approximately 60 % sand, 40 % fines <br />-130ft: increasing sand content <br />90-- <br />1007. <br />105 <br />110 <br />115 <br />120 <br />125 <br />130 <br />135 <br />140 <br />145 <br />— — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — <br />150 ' <br />POORLY GRADED SAND (SP) black sand <br />155 <br />160= <br />165= <br />Gravel <br />filter pack <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 />