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<br /> Date Start/Finish: 11.10.09/11.13.09 Northing:2158326.3316 Well/Boring ID: MW-6D
<br /> Drilling Company: Cascade Drilling,LP Easting:6351551.5323 Client: Site ID 309075 Chevron Environmental
<br /> Driller's Name: Tory Salazar Casing Elevation: 29.98 Management Company(Chevron)
<br /> J Drilling Method: Hollow Stem Auger
<br /> Auger Size: 8-inch,15-inch Borehole Depth: 120.5 feet bgs Location:3978 South Highway 99,Stockton,
<br /> Rig Type: HSA 95 Surface Elevation: 30.45
<br /> California
<br /> Sampling Method: California Modified Split Spoon
<br /> Descriptions By: Brett Krehbiel
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<br /> , W m c Well/Boring
<br /> S Z. = O v a 0 Stratigraphic Description Construction
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<br /> u aowU) m (�(n � z s
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<br /> `--� Hand Auger to 8 feet 14nch. g plug
<br /> i. . J-lockin lu
<br /> A Ann - AA ^< Traffic rated well
<br /> A Ann A^A A box completion
<br /> A n^n n^A^ n (0-1 foot bgs)
<br /> A A^n A^A A
<br /> LJ 5 -5 A A^n AAA^ A
<br /> A A^n AAA A
<br /> A AA ,%^A A
<br /> A A^n AAA A
<br /> A A^A A^A^ A
<br /> AA n
<br /> U Begin sampling at 10 feet bgs. ^ AAS ^A^ ^
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<br /> 70 -io 1 (10'- 1.5 7,7, 15 n n^n n^n^ n
<br /> 11 5') 8 Brown CLAY(CL),some Silt,no odor,moist. AA n
<br /> 2 1 - 1.5 7,8, 16 0.0 - Brown ),no odor,moist. n n^n
<br /> wn Silt(ML), n^A^ A
<br /> 133')) B AAA n
<br /> U 3 (13'- 1.5 8,8, 16 Some Clay. A A^A n^A A
<br /> IN A
<br /> 14.5') 8 -- n n^n n^n^ n
<br /> 15 -15 4 14.5' 1.5 8,10, 20 - A n^n AAA 1,
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<br /> 16') 10 n n
<br /> 5 (16'- 1.5 7,8, 17 0.0 n AAS A."AA
<br /> 17.5') 9 A A"A" A^A^ A
<br /> u 6 17.5' 1.5 8,8, 17 - A A^All AAA
<br /> 19') 9 _ n AA A^A^ .
<br /> 7 (19'- 1.5 8,9, 18 A A^A n^n^ n.
<br /> 20 -20 20.5') 9 -- A n^n A^A n.
<br /> 8 20.5 1.5 9,9, 18 Brown fine to coarse SAND(SW),trace Silt,no odor,moist. n A^n n^n^ A
<br /> 22') 9 _ n n n
<br /> A nnn A Schedule 80 2-
<br /> L-+ 9 2(325, 1.5 8,8 , 17 =- Brown SILT(ML),some Clay,no odor,moist. ^ AAA An inch casing
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<br /> 10 23.5 1.5 9,9, 20 0.0 A A^n AAA A Steel conductor
<br /> 25') 11 Some fine Sand,little Clay,no odor,moist. A AAA AAA casing(0-78 feet
<br /> 25 -25- 11 (25'- 1.5 9,10, 20 -- n n^n n^An bgs)
<br /> 26.5') 10 A n^n AAA n Grout(1-107 feet
<br /> i-J 12 26.5' 1.5 9,10, 20 n n^n n^A A bgs)
<br /> 28') 10 Grades to trace fine Sand. A AA AAA A
<br /> 13 (28'- 1.5 10,10, 20 0.0A A^ ^ ^
<br /> 29.5') 10 Brown fine to medium SAND(SP),trace Silt,no odor,moist. AAA'
<br /> AAA n
<br /> A n n n n n
<br /> 30 -30 14 29.5' 1.5 9,10, 20 n n^n AA n
<br /> u 31') 10 n n^A AAA n
<br /> 15 (31'- 1.5 8,9, 18 �•' n AA n^n n
<br /> 32.5-) 9 ;\\ Brown CLAY(CL),some Silt,no odor,moist. n A^n AAAA A
<br /> 16 32.5' 1.5 8,9, 19 0.0 n, AAA' A^A
<br /> 34') 10 -,� n n^n n^n^ n
<br /> 17 (34'- 1.5 9,9, 18 n n^', n^A^ A
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<br /> 35 -35 35.5') 9 - Brown SILT(ML),trace fine Sand,no odor,moistA^A' AAA
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<br /> 18 1.5 9
<br /> 3r 18 __ Brown SILT and SAND(SM),trace Clay,no odor,moist. m n`'n° 'A^
<br /> 19 (37) 9 AAAA nn^A r. '1.5 11,8, 18 0.0 AA^ "n,,,A_
<br /> 38.5') 10 Brown SILT(ML),some Clay,trace fine Sand,no odor,moist. AAA' "n^ ,
<br /> 20 38.5% 1.5 7,8, 16 - A .,AA' A^n^
<br /> Trace fine Sand,no odor,moist. n^�° ,AA
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<br /> u 40') 8 A A �,
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<br /> -90 21 41 5, 1.5 8,88, 16 -- Grades with some fine Sand,trace Clay. n^P` "+n
<br /> 22 41.5' 1.5 7,8, 17 0.0
<br /> 43') g - Brown SILT(ML),some fine Sand,trace Clay,no odor,moist.
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<br /> Remarks: HSA=Hollow Stem Auger
<br /> bgs=below ground surface
<br /> =feet
<br /> ARCADIS
<br /> `J Bottom 115.6-119 feet of screen obstructed by grout.Actual Screen interval is 109-115.6
<br /> Infrastructure,environment,facilities feet bgs.
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<br /> Project Number:B0046908.0000 Template:G:t jest\ENVICHEVRON\309075\4 Project\Boring Logs\MW-6D age:I of 3
<br /> Data File:MW-6D Date:114/2010 Brett Krehbiel
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