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Date Start/Finish: 11.10.09/11.13.09 Northing:2158326.3316 WOO, g ID:MW-6D
<br /> Drilling Company: Cascade Drilling,LP ` Easting:6351551.5323
<br /> Driller's Name: Tory Salazar Casing Elevation: 29.98 Client:t,rievron Environmental Management
<br /> Drilling 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 9E Surface Elevation: 30.45 California
<br /> Sampling Method: California Modified Split Spoon
<br /> Descriptions By: Brett Krehbiel
<br /> CL _..
<br /> -- `CLE
<br /> S
<br /> Z w 2 n c Well/Boring
<br /> O c Z, 3 Stratigraphic Description Construction
<br /> ca
<br /> > U
<br /> a. > E E u 3 > o
<br /> W w (n m I z a
<br /> .5') 8 .• Brown fine SAND(SP),no odor,moist. I
<br /> 4524 44.5' 1.5 8,8, 17
<br /> _15 46') 9 •" i'
<br /> 25 (46'- 0.0 No recovery. d,
<br /> 7.5'
<br /> 26 4 1.5 8.9. 18
<br /> 49')9') 9 Brown fine SAND(SP),no odor,mt.
<br /> ois
<br /> 27 (49'- 1.5 8,9, 19
<br /> 50 _20 .5' 10 -
<br /> 28 50.5 1.5 10,8, 16
<br /> 52') 8 [
<br /> 29 (52'- 1.5 9.9, 18 0.0 !
<br /> .5') 9 light brown SILT(ML),trace fine Sand,no odor,moist.
<br /> 30 53.5' 1.5 8,9, 19 1I,
<br /> 55 55') 10 11 Grades to some fine Sand.
<br /> -25 31 (55-0
<br /> 1.5 9.10, 20 Light brown SILT(ML),trace Clay,no odor,moist. {�
<br /> 32 56.5' 1.5 89. 17 0.0 r
<br /> 56') Brown SILT(ML),some fine Sand,no odor,moist.
<br /> f
<br /> 33 (58'- 1.5 7 9.8, 17 0.0 I Grades with trace 9Clay.
<br /> .5' 9 { I
<br /> so 34 59.5' 1.5 1 9 15 F Brown SAND and SILT(SM),no odor,moist.
<br /> -30 61') 8 ti� ) Steel conductor
<br /> 35 (61'- 1.5 7.7, 14 { ,."t casing
<br /> 2.5' 7 r 1+•• (0-78'bgs)
<br /> 36 62.5' 1.5 8,8, 16 f f
<br /> 64') 8
<br /> I
<br /> 37 (64'- 1.5 ¢,6, 13 0.0 ! { Brown CLAY(CL),trace Silt,no odor,wet. i- Schedule 80
<br /> ss -35 5.5 7 2-inch casing
<br /> 38 65.5 1.5 6,77 14
<br /> 6T) ` Grout
<br /> 39 (6T- 1.5 6.6, 12 Brown CLAY(CL),no odor,wet. (1-105'bgs)
<br /> 8.5' 6 I
<br /> 40 68.5 1.5 5,6, 13 ` r
<br /> 70') 7 Some Sift. ;
<br /> 70 -/0 41 (70'- 1.5 5.6, 12
<br /> 71.5) 6 Brown SILT(ML),some fine Sand,no odor,wet. ` 1: L
<br /> 42 71.5' 1.5 6,6, 13 0.0 ",
<br /> 73') 7 'Jy
<br /> 43 (73'- 1.5 6,7, 14 ` Trace fine Sand. t
<br /> 4.5' 7
<br /> 15 44 74.5 1.5 5,6, 12
<br /> _45 76') 6
<br /> 45 (76'- 1.5 7,8, 17 r
<br /> 7.5') 9 tt
<br /> 4677.5 1.5 7.8. 17 0.0 l _
<br /> 79,) 9 [ Brown SILT(ML),no odor,moist f
<br /> 47 (79'- 1.5 7.8, 17 Some fine Sand. !
<br /> ao 0.5' 9
<br /> _50 48 80.5'831) No recovery. !
<br /> 49 (83'- 1.5 19 0.0
<br /> 4.5' 11 Brown fine SAND(SP),some Clay,no odor,wet.
<br /> 11 � .• '
<br /> g5 50 648g.5' 1.5 1111', 22
<br /> 55 516 0.6 1011, 22 0.0 ,
<br /> Remarks: HSA=Hollow Stem Auger
<br /> bgs=below ground surface
<br /> '=feet
<br /> Bottom 115.6 to119 feet of screen obstructed by grout.Actual exposed screen interval is
<br /> ipV ;:L,r,d� 109 to 115.6 feet bgs.
<br /> Project um erB00 6908.0000 emp a e:G:\Aproject\ENV\CHEVRON\309075\4 Project\Boring Logs\MW-6D age:2 o
<br /> Data File:MW-6D Date3/4/2010 Brett Krehbiel
<br />
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