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A A Vector Engineering, Inc. 143E Spring Hill Drive Grass Valley, CA 95945 Telephone: 530-272-2448 Fax: 530-272-8533 WELLNUMBER: SG -107 Page 2 of 2 Project: LFG Monitoring Well Installation Remarks: Client: San Joaquin County Hole overdrilled to 150 ft. Location: Foothill Sanitary Landfill Placed 4 ft of gravel at bottom. 6484 North Waverly Road, Linden, CA Deep probe placed at 146 ft, as designed. 0) 0 Material Description Well Diagram D 0 - POORLY GRADED SAND (SP) continued X X X X ---------------.. -------------- X X X X 90-- X X X X 90-2 XX X X X X X X X X X X X X X X 95-- XXXX 95 X X X X - SP "T POORLY GRADED 6kkdCDSAR15 (§-P) black -sand f,-weakTlto - - - - - - - 100-- moderately cemented 100 T --- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - X X X X 105-::. X X X X SILTSTONIE- brown, moderately cemented, laminated X X X X XX X X X X X X 110-- X X X X XX X X 110-: X X X X X X X X - X X X X -4 Gravel X X 115-- X X X X X X 115 filter pack X X X X X X X X X X X X 120- XX X X 120-- Z X X X X X X X X X X X X X X X X 125-- X X X X X X X X several thin (about 1 ft) beds of sandstone from 125 -146 ft 125. .. ... X XX X X X X X X X X X 130-- X X X X 130-- XXXX X XX X X X X X X X X X X X 135-- X X X X X X XX X X X X X X XX X X X X X X 140-- XX X X 140 X X X X X X X X X X X X X X X X 145-- XXXX 145 XXX X X X X X X X X X X X X X 150 XXXXX 1150 155-- 155-- 160-- 160-- 165-- 165-- 170 Izn Drilling Company: Westex Date Started: 8/7/2009 Time Started: 3:30pm Drilling Method: Air Rotary Date Completed: 8/11/2009 Time Completed: 10:50am Boring Diameter: 8-5/8 in Elevation (ft): 305.676 Total Depth (ft): 150 Logged By: Pete Holland, CEG Groundwater Level: NFWE Sampling Method: Grab from cuttings