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Date Start/Finish: 11.11.09/11.12.09 Northing:2158331.1053 WpllfP g ID:MW-6
<br /> Drilling Company: Cascade Drilling,LP Easting:6351548.4211
<br /> Driller's Name: Tory Salazar Casing Elevation: 29.70 Client:Chevron Environmental Managemnet
<br /> Drilling Method: Hollow Stem Auger Company(Chevron)Site ID 309075
<br /> Auger Size: 8-inch Borehole Depth: 75 feet bgs
<br /> Rig Type: HSA 95Surface Elevation: 30,49. Location:3978 South Highway 99,Stockton,Sampling Method: California Modified Split Spoon California
<br /> Descriptions By, Brett Krehbiel.
<br /> CL
<br /> E n
<br /> c
<br /> 3 a a E
<br /> Z r w rn a c Well /Boring
<br /> 0 5 Z c w Stratigraphic Description Construction -'
<br /> ~a w n E o
<br /> o w U) CO
<br /> 95 -15
<br /> Drill to 60 feet bgs.For soil stratigraphy please refer to MW-6D.
<br /> I!i
<br /> Grout
<br /> (1-51.5'bgs)
<br /> Schedule 80
<br /> 50 24nch casing
<br /> -20 (0-55'bgs)
<br /> Hydrated
<br /> bentonite seal
<br /> (51.553.5'bgs)
<br /> 55 -'• :_ _
<br /> _25
<br /> +\ • _
<br /> a a� �•_a
<br /> .�
<br /> 60 30
<br /> 1 (60'- 1.5 9,9, 18 0.0 Brown SILT ML trace fine Sand,no odor,d +
<br /> 1.5') 9 ( ). dry. E'.
<br /> 2 61.5'• 1.5 8,9,. 18 0.0 '!•' #2/12 sand
<br /> 63') 9 - Brown fine SAND and SILT(SM),no odor,dry. (53.5-75'bgs)
<br /> 3 (63'-• 1.5 7,8, 16 0.0 �',. - •,
<br /> 4.5'), 8 _ 0.010 slotted
<br /> i•r screen interval
<br /> —6535 4 665' 1.5 7�- 14 0.0 Brown CLAY(CL),some Sill,no odor,moist. : 'y (55-70'bgs)
<br /> 5 (66'� 1.5 6,6, 14 0.0
<br /> 5' • a f:�:
<br /> 7 8 Brown fine SAND and SILT(SM),trace Clay,no odor,moist. -
<br /> 6 669') 1.5 6,7, 14 Brown fine to medium SAND and SILT(SM),trace Clay,no odor,moist. ' a
<br /> v •.
<br /> 15
<br /> 7,e ° los s - Brown SILT(ML),some fine Sand,trace Clay.no odor,moist.
<br /> Schedule 80
<br /> 8 70.5' 1.5 7,7, 15 0.0 4 . 24nch end cap
<br /> 72') 8 Brown SILT(ML),some fine Sand,no odor,moist. .•• s'• (69.570'bgs)
<br /> # '
<br /> 9 73.5' 1.5 6,88, 16 0.0 •. Brown fine to coarse SAND(SW),no odor,wet.
<br /> •
<br /> 10 73.5' 1.5 6,7, 15 0.0 Brown SILT(ML),some fine Sand,no odor,wet. •• �+
<br /> 75 75') 8 3•
<br /> -95 End of boring at 75 feet bgs.
<br /> Remarks: HSA=Hollow Stem Auger ,
<br /> bgs=below ground surface
<br /> '=feet
<br /> ARCADIS
<br /> tart'.erwtfcxurkalt#�idtrf-1
<br /> Project um er80046908.0000 emp a e:G:\Aproject\ENV\CHEVRON\309075\4 Project\Boring Logs\MW-6 age:2 of 2
<br /> Data Fife:MW-6 Date3/4/2010 Brett Krehbiel
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