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Vector Engineering, Inc.
<br />143E Spring Hill Drive
<br />Grass Valley, CA 95945
<br />Telephone: 530-272-2448
<br />Fax: 530-272-8533
<br />NUMBER:WELL SG -122
<br />Page 1 of 1
<br />Project: LFG Monitoring Well Installation Remarks:
<br />Client: San Joaquin County
<br />Location: Foothill Sanitary Landfill
<br />6484 North Waverly Road, Linden, CA
<br />CL
<br />5 SP -SM
<br />10
<br />15
<br />sM
<br />20
<br />25 --
<br />30
<br />40
<br />45
<br />50
<br />55
<br />60
<br />65
<br />70
<br />75 -
<br />80 =
<br />Material Description
<br />SANDY CLAY (CL) dark grayish brown (10YR 4/2), dry, stiff,
<br />low/medium plasticity, shrinkage crack on surface —
<br />POORLY GRADED SAND WITH SILT (SP-SM)very dark
<br />gray (10YR 3/1), moist, fine-grained sand, 10 - 20 % fines
<br />-12 -14ft with gravel
<br />SILTY SAND (SM) dark yellowish brown (10YR 4/4), moist,
<br />approximately 60 % fine-grained sand, 40 % fines, occasional
<br />thin lenses of gravel --------------------- —
<br />SANDY SILT (ML) dark yellowish brown (10YR 4/4), moist,
<br />low plasticity to nonplastic, approximately 30 % fine-grained
<br />sand, 70 % fines
<br />- hard drilling, lithified sandstone lended encountered
<br />----------------------------------
<br />SANDSTONE black, moderately cemented, fine-grained
<br />—
<br />_SILT (ML)------- — ---------------
<br />SANDSTONE, black, high porosity
<br />- dark grayish brown, low porosity, interbedded silt, hard drilling
<br />Drilling Company: Technicon
<br />Drilling Method: Hollow Stem Auger
<br />Boring Diameter: 8 in
<br />Logged By: Pete Holland, CEG
<br />Sampling Method: Grab from cuttings
<br />Date Started: 7/31/2009
<br />Date Completed: 7/31/2009
<br />Elevation (ft): 229.202
<br />Groundwater Level: NFWE
<br />Well Diagram
<br />Bentonite
<br />Gravel
<br />10 filter pack
<br />1i i F Bentonite
<br />15
<br />45--
<br />60--
<br />6 5
<br />56065
<br />70
<br />75=
<br />80=
<br />Gravel
<br />filter pack
<br />Bentonite
<br />Gravel
<br />filter pack
<br />Time Started: 12:OOpm
<br />Time Completed: 3:50pm
<br />Total Depth (ft): 69.5
<br />rn
<br />�
<br />V
<br />�
<br />0
<br />CL
<br />5 SP -SM
<br />10
<br />15
<br />sM
<br />20
<br />25 --
<br />30
<br />40
<br />45
<br />50
<br />55
<br />60
<br />65
<br />70
<br />75 -
<br />80 =
<br />Material Description
<br />SANDY CLAY (CL) dark grayish brown (10YR 4/2), dry, stiff,
<br />low/medium plasticity, shrinkage crack on surface —
<br />POORLY GRADED SAND WITH SILT (SP-SM)very dark
<br />gray (10YR 3/1), moist, fine-grained sand, 10 - 20 % fines
<br />-12 -14ft with gravel
<br />SILTY SAND (SM) dark yellowish brown (10YR 4/4), moist,
<br />approximately 60 % fine-grained sand, 40 % fines, occasional
<br />thin lenses of gravel --------------------- —
<br />SANDY SILT (ML) dark yellowish brown (10YR 4/4), moist,
<br />low plasticity to nonplastic, approximately 30 % fine-grained
<br />sand, 70 % fines
<br />- hard drilling, lithified sandstone lended encountered
<br />----------------------------------
<br />SANDSTONE black, moderately cemented, fine-grained
<br />—
<br />_SILT (ML)------- — ---------------
<br />SANDSTONE, black, high porosity
<br />- dark grayish brown, low porosity, interbedded silt, hard drilling
<br />Drilling Company: Technicon
<br />Drilling Method: Hollow Stem Auger
<br />Boring Diameter: 8 in
<br />Logged By: Pete Holland, CEG
<br />Sampling Method: Grab from cuttings
<br />Date Started: 7/31/2009
<br />Date Completed: 7/31/2009
<br />Elevation (ft): 229.202
<br />Groundwater Level: NFWE
<br />Well Diagram
<br />Bentonite
<br />Gravel
<br />10 filter pack
<br />1i i F Bentonite
<br />15
<br />45--
<br />60--
<br />6 5
<br />56065
<br />70
<br />75=
<br />80=
<br />Gravel
<br />filter pack
<br />Bentonite
<br />Gravel
<br />filter pack
<br />Time Started: 12:OOpm
<br />Time Completed: 3:50pm
<br />Total Depth (ft): 69.5
<br />
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