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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 /> 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 California
<br /> Sampling Method: California Modified Split Spoon
<br /> Descriptions By: Brett Krehbiel
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<br /> Ir = d o. E
<br /> Z m A E 2 Well/Boring
<br /> Z r- 5 , (0 0
<br /> O c ' ? a V Stratigraphic Description Construction
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<br /> . p w CO CO W m Z a ¢ C7
<br /> y 23 (43'- 1.5 9,8, 16 _ Brown fine SAND(SP),no odor,moist.
<br /> 44.5') 8
<br /> 95 -95 24 44.5' 1.5 8,8, 17
<br /> 46') 9
<br /> 25 (46'- 0.0 No recovery.
<br /> 47.5')
<br /> No 26 4 1.5 8,9, 18
<br /> 49')9') 9
<br /> Brown fine SAND(SP),no odor,moist.
<br /> 27 (49'- 1.5 8,9, 19 iA-•`
<br /> 50 -50 50.5') 10
<br /> 28 50.5' 1.5 10,8, 16
<br /> 52') 8 ?'�*
<br /> r.d 29 (52'- 1.5 9,9, 18 0.0 -
<br /> 53.5') 9 "-' Light brown SILT(ML),trace fine Sand,no odor,moist.
<br /> 30 53.5 1.5 8,9, 19 Grades to some fine Sand.
<br /> 55') 10
<br /> 55 -55 31 (55'- 1.5 9,10, 20
<br /> 56.5') 10 Light brown SILT(ML),trace Clay,no odor,moist.
<br /> r..r 32 56.5' 1.5 8,8, 17 0.0
<br /> 58') g - Brown SILT(ML),some fine Sand,no odor,moist.
<br /> 33 (58'- 1.5 7,8, 17 0.0
<br /> 59.5') 9 Grades with trace Clay.
<br /> 60 -60 34 59.5' 1.5 10,7, 15 Brown SAND and SILT(SM),no odor,moist.
<br /> rr conductor
<br /> 61) 8 casing(0-78 feel
<br /> 35 (61'- 1.5 7,7, 14
<br /> 62.5') 7 bgs)
<br /> 36 62.5 1.5 8,8, 16
<br /> 64') 8
<br /> 37 (64'- 1.5 6,6, 13 0.0 Brown CLAY(CL),trace Silt,no odor,wet. Schedule 80 2-
<br /> 65 -65 65.5') 7 inch casing
<br /> 38 65.5' 1.5 6,7 14 Grout(1-105 feet
<br /> 67') 7 bgs)
<br /> 39 (67'- 1.5 6,6, 12 Brown CLAY(CL),no odor,wet.
<br /> 68.5') 6
<br /> 40 68.5' 1.5 5,6, 13 Some Silt.
<br /> ` 70) 7
<br /> 70 -70 41 (70'- 1.5 5,6, 12
<br /> 71.5') 6 Brown SILT(ML),some fine Sand,no odor,wet.
<br /> 42 71.5' 1.5 6,6, 13 0.0
<br /> 73') 7
<br /> 43 (73'- 1.5 6,7, 14 Trace fine Sand.
<br /> v 74.5') 7 -
<br /> 75 -75 44 74.5' 1.5 5,6, 12 -
<br /> 76') 6
<br /> 45 (76'- 1.5 7,8, 17
<br /> 77.5') 9
<br /> 46 7 1.5 7 17 0.0
<br /> 79') - Brown SILT(ML),no odor,moist.
<br /> v g�) 9 g
<br /> 47 (79'- 1.5 7,8, 17 - Some fine Sand.
<br /> e0 -80 80.5') 9
<br /> 48 805 No recovery.
<br /> 83')
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<br /> 49 (83'- 1.5 8,8, 19 0.0 Brown fine SAND(SP),some Clay,no odor,wet.
<br /> 84.5') 11
<br /> 85 -85 50 84.5' 1.5 11,11, 22
<br /> 86') 11
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<br /> Remarks: HSA=Hollow Stem Auger
<br /> bgs=below ground surface
<br /> '=feet
<br /> ARCADIS Bottom 115.6-119 feet of screen obstructed by grout.Actual Screen interval is 109-115.6
<br /> feet bgs.
<br /> Infrastructure,environment facilities
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<br /> Project Number:B0046908.0000 Template:G:\Aproject\ENV\CHEVRON\309075\4 Project\Boring Logs\MW-6D age:2 of 3
<br /> Data File:MW-6D Date:1/4/2010 Brett Krehbiel
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