|
Vector Engineering, Inc.
<br /> 143E Spring Hill Drive WELL NUMBER: SG-120
<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 Moved intermediate plug down 1 ft due to sand layer.
<br /> Location: Foothill Sanitary Landfill
<br /> 6484 North Waverly Road, Linden, CA
<br /> _ 0)
<br /> U J
<br /> o ? Material Description Well Diagram
<br /> c�
<br /> SM SILTY SAND WITH GRAVEL (S )dry, strong brown (7.5YR Cement
<br /> 4/6), low plasticity, 60 %fine-to coarse-grained sand, 20 %
<br /> 5 silt, 20 % gravel (subrounded, up to 1-1/5 in.) 5 Bentonite
<br /> Gravel
<br /> 10 -dark brown (10YR 3/3), no gravel, approximately 20 %fines, 10 filter pack
<br /> CIL0i X80 % fine-grained sand---------------------- Bentonite
<br /> 15 0� SANDY CLAY(CL) dark yellowish brown (10YR 4/4), moist, 15
<br /> medium plasticity, approximately 70 %fines, 30 % fine-grained
<br /> sand
<br /> 20-- --same, except — % fines, 50 % sand20
<br /> —————————————
<br /> SC CLAYEY SAND (SC) dark yellowish brown (10YR 4/4),
<br /> 25 moist, medium plasticity, 20 -40 %fines, 60 -80 % 25
<br /> fine-grained sand
<br /> 30
<br /> SM SILTY SAND (SM) dark brown (10Yr 3/3), moist, low
<br /> plasticity, approximately 20 % fines, 80 %fine-to Gravel
<br /> filter pack
<br /> 35 medium-grained sand, some weakly cemented sand 35
<br /> 40 — ———— — — — — ------ 40
<br /> SW-SM WELL GRADED SAND WITH SILT(SW-SM)dark brown
<br /> (10YR 3/3), moist, approximately 90 %fine-to coarse-grained
<br /> 45 sand, 10 % low plastic fines, some weakly cemented sand
<br /> --- —layers------------------------------
<br /> 50 SC CLAYEY SAND (SC) brown (7.5YR 4/4), moist, medium 50
<br /> plasticity, approximately 30 % fines, 70 % sand Bentonite
<br /> 55 55
<br /> 60 SM SILTY SAND (S ) moist, approximately 20 % low plastic so
<br /> fines, 80 %fine-to medium-grained sand
<br /> 65
<br /> SC CLAYEY SAND (SC) dark yellowish brown (10YR 4/3),
<br /> moist, medium plasticity, approximately 40 % fines, 60 %
<br /> 70 fine-grained sand, easy drilling 70
<br /> Gravel
<br /> filter pack
<br /> 75 ` .: .
<br /> SP-SM POORLY GRADED SAND WITH SILT(SP-SM)moist,
<br /> ___ approximately 10 % fines, % fine-to medium-grainedsand
<br /> 80 SP __ _ _ _ _ _ ___ _ _ ___ __POORLY GRADED SAND (SP)very dark grayish brown so
<br /> (10YR 3/2), mostly medium-grained sand, < 5 %fines, some
<br /> cemented sand (weak to moderate), < 5 % gravel
<br /> Drilling Company: Technicon Date Started: 8/4/2009 Time Started: 7:15am
<br /> Drilling Method: Hollow Stem Auger Date Completed: 8/4/2009 Time Completed: 12:OOpm
<br /> Boring Diameter: 8 in Elevation (ft): 252.087 Total Depth (ft): 92
<br /> Logged By: Kristin Sample, PE Groundwater Level: NFWE
<br /> Sampling Method: Grab from cuttings
<br />
|