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STRATIGRAPHIC AND INSTRUMENTATION LOG
<br /> (OVERBURDEN) Page 1 of 1
<br /> PROJECT NAME: SHELL OIL PRODUCTS HOLE DESIGNATION: MW-16-50
<br /> PROJECT NUMBER: 240778 DATE COMPLETED: July 11,2007
<br /> CLIENT: DENIS BROWN DRILLING METHOD: ROTOSONIC
<br /> LOCATION: STOCKTON,CALIFORNIA FIELD PERSONNEL: LG
<br /> DEPTH STRATIGRAPHIC DESCRIPTION&REMARKS EPTH D BGS SAMPLE
<br /> MONITORING WELL W
<br /> W j o
<br /> m of Q
<br /> U
<br /> W
<br /> W
<br /> Z Z of Z
<br /> concrete 00 CONCRETE
<br /> 1.
<br /> cleared with airknife-not logged -.
<br /> ,r,.
<br /> 5 CL-CLAY,2.5y 5/4,dry,20%clay,75%silt, • 5.00
<br /> 5%fine sand,medium plasticity BENTONITE
<br /> GROUT
<br /> 10 CL-CLAY,2.5y 4/4,dry,20%clay,75%silt, 10.00
<br /> 5%fine sand,medium plasticity
<br /> 15 CL-CLAY,1 Oyr 3/6,dry,20%clay,75%silt, 15.00
<br /> 5%fine sand,medium plasticity
<br /> 20 ML-SILT,10yr 3/6,dry,10%clay,80%silt, 20.00 BOREHOLE
<br /> 10%fine sand,medium plasticity
<br /> 25 ML-SILT,10yr 3/6,dry,10%clay,80%silt, 25.00 2"PVC WELL
<br /> 10%fine sand,medium plasticity
<br /> SM-SILTY SANDS,wet,5%clay,45%silt, 28.00
<br /> 30 50%fine sand,low plasticity 30.00
<br /> SM-SILTY SANDS,gleyl 1 O 5/1, wet,5%
<br /> clay,45%silt,50%fine sand,low plasticity
<br /> 35 ML-SILT,1 Ogy 4/1,moist,30%clay,60%silt, 35.00
<br /> 10%fine sand,medium plasticity
<br /> 40
<br /> BENTONITE
<br /> CHIPS
<br /> 45 SM-SAND,5gy 3/1,wet,10%silt,90%fine 44.50
<br /> sand,low plasticity 46.00 - 2"PVC WELL
<br /> a GC-GRAVELS,10gy 4/1,moist,20%clay, 47T .00 _ SCREEN
<br /> 0 25%silt,25%coarse sand,30%coarse - SAND PACK
<br /> ravel,low plasticity 4s.00
<br /> F 50 9 p y 50.00 BENTONITE
<br /> ML-SILT,10gy 4/1,moist,20%clay,50%silt, WELL DETAILS CHIPS
<br /> T30%coarse sand,low plasticity Screened interval:
<br /> 0 ML-SILT,1 Ogy 4/1,moist,20%clay,70%silt, 44.50 to 49.50ft BGS
<br /> 10%fine sand,low plasticity Length: 5ft
<br /> 0 55 END OF BOREHOLE @ 50.Oft BGS Diameter: tin
<br /> a Slot Size: 0.020
<br /> m
<br /> Material: PVC
<br /> Sand Pack:
<br /> v
<br /> a60 43.50 to 49.50ft BGS
<br /> Material: #2/12 SAND PACK
<br /> 0
<br /> J
<br /> Z
<br /> W
<br /> z NOTES: MEASURING POINT ELEVATIONS MAY CHANGE;REFER TO CURRENT ELEVATION TABLE
<br /> D
<br /> WATER FOUND Y
<br /> W
<br /> 0
<br />
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