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Vector Engineering, Inc. 143E Spring Hill Drive WELL ®11 Grass Valley, CA 95945 Page 1 of 2 Telephone: 530-272-2448 Fax: 530-272-8533 Project: LFG Monitoring Well Installation Remarks: Client: San Joaquin County Location: Foothill Sanitary Landfill I 6484 North Waverly Road, Linden, CA rn N jCL Material Description ML SANDY SILT (MLS brown (10YR 4/3), dry, approximately 50 % low plastic fines, 50 % fine-grained sand, some cemented 5 sand SC CLAYEY SAND (SCj dark yellowish brown (10YR 4/4) 10 moist, approximately 30 % medium plasticity fines, 70 % fine - to medium -grained sand 15 1 � -14ft: ce_m_en_te_d_san_d layer (sandstone) _ _ _ _ SM SILTY SAND (SM) dark brown (10YR 3/3), moist, 15 - 20 % J low plastic fines, 80 - 85% fine- to medium -grained sand 20 (mostly fine) -some strong to moderately cemented sand layers (sandstone) 25 30 --- ----------------T------------------ SC CLAYEY SAND (SCj brown (10YR 4/3), moist, approximately 30 % medium plasticity fines, 70 % fine-grained 35 sand, some weak to moderately cemented sand layers from 30 62ft 40 - 37ft: same, except approximately 15 % fines, 85 % fine-grained sand -43ft: same, except dark brown (10YR 3/3) 45 50 -52ft: same, except approximately 40 % fines, 60 % 55 fine-grained sand -thin layers of claystone/siltstone 53 - 62ft 60 CL SANDY CLAY (CL) brown (10YR 4/3), moist, approximately 65 60 - 70 % medium plasticity fines, 30 - 40 % fine-grained sand, some weakly cemented sand 70-- 75 :N Well Diagram Cement 5 Bentonite Gravel 10 filter pack Bentonite 1s I 35 Gravel filter pack 40-- 0 0 45 50 55 Bentonite Gravel filter pack Drilling Company: Technicon Date Started: 8/5/2009 Time Started: 1:05pm Drilling Method: Hollow Stem Auger Date Completed: 8/6/2009 Time Completed: 12:05pm Boring Diameter: 8 in Elevation (ft): 266.42 Total Depth (ft): 106 Logged By: Kristin Sample, PE Groundwater Level: NFWE Sampling Method: Grab from cuttings