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Vector Engineering, Inc. <br /> 143E Spring Hill Drive WELL ®'f 7 <br /> Grass Valley, CA 95945 Page 1 of 2 <br /> Telephone:530-272-2448 <br /> Fax: 530-272-8533 <br /> Project: LFG Monitoring Well Installation Remarks: <br /> Client: San Joaquin County Hole overdrilled to 150 ft. <br /> Location: Foothill Sanitary Landfill Placed 4 ft of gravel at bottom. <br /> 6484 North Waverly Road, Linden, CA Deep probe placed at 146 ft, as designed. <br /> CM <br /> cn <br /> 0 <br /> o = Q Material Description Well Diagram <br /> W-G WELL GRADED GRAVEL WITH SILT AND SAND(GW-GM) Cement <br /> • AND COBBLES~ brown, moist, approximately 40% gravel, <br /> 5 25% sand, 25 %cobbles, 10 %fines, gravel and cobbles well 5 Bentonite <br /> rounded, bassaltic <br /> Gravel <br /> 10 10 filter pack <br /> Bentonite <br /> 15 -- <br /> 20-- <br /> 5 20 20 <br /> 25 • 25 <br /> 30 ® 30 <br /> w <br /> 35 35 <br /> --- ----------------------------------- <br /> SP-SM::•:�.•::�. :: " POORLY GRADED SAND WITH SILT(SP-SM)brown <br /> 40 (7.5YR 3/2), moist, 90 % fine-grained sand, 10% fines ao <br /> SM SILTY SAND(SM) moist, 70%fine-grained sand, 30% a5 Gravel <br /> fines filter pack <br /> 50 50 <br /> --- X X X X SILTSTONE, brown,weakly cemented, laminated <br /> X X X X <br /> 55 xxxx 55 <br /> XX X X <br /> X X X X <br /> X X X X <br /> 60 XX X X 60 <br /> 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 /> 65 XXXX 65 <br /> XX X X <br /> X X X X <br /> X X X X <br /> 70 XX X X 70 <br /> X x x X <br /> X x x x <br /> X x x x <br /> X x x x <br /> 75j xxxx 75 <br /> X x x x <br /> xx x x <br /> X X X X Bentonite <br /> XX X X <br /> 80 ___ xxxx —————————— 80 <br /> SP POORLY GRADED SAND (SP)black sand <br /> W, x Date Started: 8/7/2009 Time Started: m 3:30 <br /> Drilling Company este p <br /> Drilling Method:Air Rotary Date-Completed:-8/1112009 Time-Completed:-10:50am <br /> Boring Diameter: 8-5/8 in Elevation (ft): 305.676 Total Depth (ft): 150 <br /> Logged By: Pete Holland, CEG Groundwater Level: NFWE <br /> Sampling Method: Grab from cuttings <br />