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Vector Engineering, Inc. 143E Spring Hill Drive Grass Valley, CA 95945 Telephone: 530-272-2448 Fax: 530-272-8533 Project: LFG Monitoring Well Installation Client: San Joaquin County Location: Foothill Sanitary Landfill 6484 North Waverly Road, Linden, CA rn U) J � U � D a c� WELL NUMBER: -123 Page 1 of 1 Remarks: Hole overdrilled to 68.5 ft. Placed 0.5 of gravel at bottom. Deep probe placed at 68 ft, as Material Description 5 ML I I I ( SANDY SILT (ML) brown moist, approximately 30 fine-grained sand, 70 % fines, easy drilling 10 SM SILTY SAND (SM) brown, moist, dense, approximately 60 % 10 sand, 40 % fines 115 20 --- :..�;::: ' `:---------------------------------- 20 . SP -SM POORLY GRADED SAND WITH SILT (SP-SM)black, approximately 80 % fine-grained sand, 20 % fines 25-- 25,-: 30 30 --- .... CL SANDY CLAY (CL) brown, moist, low plasticity, 35 approximately 30 % sand, 70 % fines 35 Well Diagram 40-- -40 Date Started: 7/30/2009 Drilling Method: Hollow Stem Auger Date Completed: 7/31/2009 —10 45 Logged By: Pete Holland, CEG Groundwater Level: NFWE Sampling Method: Grab from cuttings 45 . ' 50 SM SILTY SAND (SM) brown moist, approximately 60 % sanf, 55-- 40 % fines 55 ML SANDY SILT (ML) brown moist, nonplastic, harder drilling 60 s0 65 s5 :•: 70- 70- 75-- 75-- 5-80- 80--80 - Bentonite Gravel filter pack Bentonite I Gravel filter pack Bentonite I Gravel filter pack Drilling Company: Technicon Time Started: 3:40pm Time Completed: 12:00pm Total Depth (ft): 68.5 Date Started: 7/30/2009 Drilling Method: Hollow Stem Auger Date Completed: 7/31/2009 Boring Diameter: 8 in Elevation (ft): 228.202 Logged By: Pete Holland, CEG Groundwater Level: NFWE Sampling Method: Grab from cuttings