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STRATIGRAPHIC AND INSTRUMENTATION LOG
<br /> (OVERBURDEN) Page 1 of 1
<br /> PROJECT NAME: SHELL OIL PRODUCTS HOLE DESIGNATION: MW-17-50
<br /> PROJECT NUMBER: 240778 DATE COMPLETED: July 12,2007
<br /> CLIENT: DENIS BROWN DRILLING METHOD: ROTOSONIC
<br /> LOCATION: STOCKTON,CALIFORNIA FIELD PERSONNEL: LG
<br /> H DEPTH SAMPLE
<br /> Dft BGS STRATIGRAPHIC DESCRIPTION&REMARKS ft BGS MONITORING WELL J
<br /> w
<br /> W � o J
<br /> 00 c a
<br /> U
<br /> W
<br /> W �
<br /> Z Z c Z
<br /> cleared with airknife-not logged '' q: q' CONCRETE
<br /> 5 5.00
<br /> ML-CLAYEY SILT,10yr 4/3,dry,25%clay,
<br /> 50%silt,15%fine to coarse grained sand, BENTONITE
<br /> 10%fine grained gravel,low plasticity GROUT
<br /> 10 SM-SILTY SAND,10yr 4/3,dry,10%silt,90% 11. 00
<br /> fine to medium grained sand,low plasticity
<br /> ML-CLAYEY SILT,10yr 5/3,dry,25%clay,
<br /> 15 75%silt,medium plasticity 15.00
<br /> ML-CLAYEY SILT,2.5y 5/4,moist,20%clay,
<br /> 600/, 'It 10%fine grained sand,10%fine 17.00
<br /> grained gravel,medium plasticity
<br /> 19.00
<br /> 20 ML-CLAYEY SILT,10yr 4/4,dry,20%clay, 20.00 8"
<br /> 70%silt,10%fine grained sand,medium BOREHOLE
<br /> plasticity
<br /> ML-SILT,10yr 5/4,10%clay,80%silt,10%
<br /> 25 fine grained sand,low plasticity 25.00 2"PVC WELL
<br /> ML-SILT,2.5y 4/2,moist to wet,10%clay, CASING
<br /> 65%silt,15%fine to coarse grained sand,
<br /> 10%fine grained gravel,low plasticity
<br /> 30 ML-SILT,2.5y 4/2,moist,20%clay,70%silt, 30.00
<br /> 10%fine grained sand,low plasticity
<br /> ML-SILT,2.54 4/2 w/10gy 4/1,moist,10% 33.00
<br /> clay,75%silt,10%fine grained sand,5%fine 34.00
<br /> 35 grained gravel,low plasticity
<br /> SM-SILTY SAND,10gy 4/1,moist to wet,20%
<br /> clay,55%silt,25%fine to coarse grained
<br /> sand,low plasticity
<br /> 40 ML-CLAYEY SILT,10gy 4/1,30%clay,60%
<br /> silt,10%fine grained sand,medium plasticity
<br /> 45 BENTONITE
<br /> 46.00
<br /> ML-CLAYEY SILT,10gy 4/1,moist to wet, 47,00 CHIPS
<br /> 25%clay,60%silt,15%fine grained sand, _
<br /> low plasticity — SAND PACK
<br /> 50 ML-CLAYEY SILT,10gy 4/1,moist to wet, = 2"PVC WELL
<br /> r 25%clay,60%silt,10%fine grained sand, _ SCREEN
<br /> N 5%fine grained gravel,low plasticity —
<br /> 54.00 BENTONITE
<br /> 55 ML-CLAYEY SILT,10gy 4/1,moist to wet,5% 55.00 CHIPS
<br /> F_ clay,80%silt,15%fine grained sand,low WELL DETAILS
<br /> c? plasticity Screened interval:
<br /> a
<br /> END OF BOREHOLE @ 55.0ft BGS 48.00 to 53.00ft BGS
<br /> Oi 60 Length: 5ft
<br /> Diameter: tin
<br /> U Slot Size: 0.020
<br /> a Material: PVC
<br /> c�
<br /> ,o Sand Pack:
<br /> 65 47.00 to 53.00ft BGS
<br /> v
<br /> Material: #2/12 SAND PACK
<br /> O
<br /> O
<br /> J
<br /> Z
<br /> W
<br /> NOTES: MEASURING POINT ELEVATIONS MAY CHANGE;REFER TO CURRENT ELEVATION TABLE
<br /> WATER FOUND
<br /> of
<br /> w
<br /> 0
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