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Date Slart/Firl 11.10.09/11.13.09 Northing:2158326.3316 Well/ 'ng ID:MW-6D
<br /> j Drilling Company: Cascade Drilling,LP A Easting:6351551.5323 \.-a
<br /> Driller's Name: Tory Salazar Casing Elevation: 29.98 Client: Chevron Environmental Management
<br /> Grilling Method: Hollow Stem Auger Company(Chevron)Site ID 309075
<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 California
<br /> Sampling Method: California Modified Split Spoon
<br /> Descriptions By: Brett Krehbiel
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<br /> =30. ^ a) E
<br /> ZZ r y n o Well/Boring
<br /> O S Z m Stratigraphic Description Construction
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<br /> 30Hand Auger to 8 feet 1-inch bgs Traffic rated well
<br /> I AAAA AAAA n� box completion
<br /> A AAAA AAA AA (0-1•bgs)
<br /> A AAAA AAAA A
<br /> A AAAA AAAA A
<br /> n AAAA AAAA A
<br /> 5 25 .A AAAA AAAA A
<br /> A AAAA AAAA A
<br /> A AAAA AAAA A
<br /> A AAAA AJ'AA A
<br /> n AAA AAAA A
<br /> Begin sampling at 10 feet bgs n AAA AAAA A
<br /> 10
<br /> AAAA AAAA A
<br /> zo 1 (19- 1.5 7 15 Brown CLAY(CL),some Silt,no odor,moist AAAA n ^
<br /> 11.5') 8 ( ) � AAAA AAtinn �
<br /> 8
<br /> 2 11.5' 1.5 7.8, 16 0.0 - Brown Silt ML,no odor,moist. AAAA AA AA ^
<br /> 13') 8 ( ) A AAAA AAAA A
<br /> 3 (13'- 1.5 8,8, 16 A AAAA n^nA A
<br /> 145) 8 - Some Clay. AnAn AnAn A
<br /> 15 4 14.5' 1.5 8,10, 20 - n AAA AAAA n
<br /> is 16') 10 A AAAA AAAA A
<br /> 5 (16'- 1.5 7,8, 17 0.0 _ n AAA^ AAAA n
<br /> 17.5') 9 n AAAA AAAA n
<br /> 6 17.5' 1.5 8,8, 17 n AAA AAAA A
<br /> 19') 9 n AAAA AAAA A
<br /> 7 (19'- 1.5 8,9, 18 - A AAAA A AAA n
<br /> zo 05) 9 - A AAAA AAAA n
<br /> 10 8 20.5' 1.5 9,9, 18 Brown fine to coarse SAND is",trace Silt,no odor,moist. A AAAA AAAA A
<br /> 22) 9 A AAAA .AAA A
<br /> 9 (22'- 1.5 8,8, 17 _ Brown SILT(ML),some Clay,no odor,moist. A ^AAA A Schedule 60
<br /> 3.5') 9 AAAA A^ A 2-inch casing
<br /> 10 23.5' 1.5 9,9, 20 0.0 A AAAA A^AA A Steel conductor
<br /> 25') 11 Some fine Sand,little Clay,no odor,moist. AAAA AnAn casing
<br /> 25 s 11 25'- 1.5 9,10, 20 _ n AAA^ AAAA A (0-78'bgs)
<br /> 6.5') 10 ^ ^AAA AAA A Grout
<br /> A AAA^ AAAA n (1-105'bgs)
<br /> 12 26.5' 1.5 9,10, 20 - Grades to trace fine Sand. n AAAA A^AA n ( )
<br /> 28') 10
<br /> 13 (29- 1.5 10,10, 20 0.0 n AnAn ^n An
<br /> 9.5' 10 Brown fine to medium SAND(SP),trace Silt,no odor,moist. A n A n AA n
<br /> ^ AAA^ AAA A
<br /> 031' 10
<br /> 30 14 29.5' 1.5 9,10, 20 > AAAA AAA
<br /> A
<br /> 15 (31' 1.5 8,9, 18 AnAn AAAA n
<br /> 32.5') 9 Brown CLAY(CL),some Silt,no odor,moist. AAAA AAAA A
<br /> A
<br /> A A
<br /> 16 32.5' 1.5 8,9, 19 0.0 AAAA AAA
<br /> AA
<br /> 34') 10 ^ An A AA
<br /> 17 (34'- 1.5 9,9, 18 Brown SILT(ML),trace fine Sand,no odor,moist. AAAA AAAA n
<br /> 35 s 35.5') 9 AnAn A.AA A
<br /> 18 35.5' 1.5 9,9, 18 _ Brown SILT and SAND(SM),trace Clay,no odor,moist. ^ AAAA AAA n
<br /> 37') 9 n AAAA AAAA A
<br /> 19 (3T- 1.5 11,8, 18 0.0 _ ^ n
<br /> AAA AA ^
<br /> 33T- 10 Brown SILT(ML),some Clay,trace fine Sand,no odor,moist. , A^nA AAAA n
<br /> 20 38.5' 1.5 7,8, 16 - Trace fine Sand,no odor,moist. AAAA AAAA n
<br /> 40 40) 6 AAAA AAAA A
<br /> -10 21 (40'- 1.5 8,8, 16 - Grades with some fine Sand,trace Clay. An A, An^n ^
<br /> 1.5') 8 A n n n n
<br /> 22 41.5' 1.5 7,8, 17 0.0 _ Brown SILT(ML),some fine Sand,trace Clay,no odor,moist. n AAA AAAA A
<br /> n AA,n
<br /> 23 (43- 1.5 9 8, 16 A ^' A ^
<br /> Remarks: HSA=Hollow Stem Auger
<br /> bgs=below ground surface
<br /> '=feet
<br /> AADj�
<br /> [ �j j"� Bottom 115.6 to119 feet of screen obstructed by grout.Actual exposed screen interval is
<br /> R 109 to 115.6 feet bgs.
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<br /> Project um erB0046908.0000 emp a e:G:\Aproject\ENV\CHEVRON\309075\4 Project\Boring Logs\MW-6D age:I of 3
<br /> Data File:MW-6D Date3/4/2010 Brett Krehbiel
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