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Date Start/Finish: 11.10.09/11.13.09 Northing:2158326.3316 Well 1g ID:MW-6D
<br /> Drilling Company: Cascade Drilling,LP VoW Easting:6351551.5323 4r
<br /> Driller's Name: Tory Salazar Casing Elevation: 29.98 Client:Chevron 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 95 Surface Elevation: 30.45
<br /> 'r Sampling Method: California Modified Split Spoon California
<br /> Descriptions By: Brett Krehbiel
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<br /> Z c a w w n o Well/Boring*AWO S Z Stratigraphic Description Construction
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<br /> 87.5') 11 No recovery.
<br /> 52 8 1.5 10,12, 24 0.0
<br /> 89')9.) 12
<br /> Brown fine SAND(SP),some Silt,no odor,wet.
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<br /> 53 (89'- 1.5 12,13, 26
<br /> eo 0.5') 13
<br /> -60 54 90.5' 1.5 12,12, 24
<br /> 92') 12
<br /> 55 (92'- 0.6 11,12, 24
<br /> 93.5 12 No recovery.
<br /> v ')
<br /> 56 93.5' 1.5 11 27 0.0
<br /> 95 95) 144 Brown fine to medium SAND(SP),no odor,wet.
<br /> ss 57 (95'- 1.5 10,12, 24 Grades with coarse SAND. Grout
<br /> 96.5') 12 :+.•"a
<br /> 58 96.5' 1.5 11,11, 24 0.0 (1-105'bgs)
<br /> 98') 13 '��• Fine to medium SAND. Schedule 80
<br /> 59 (98'- 1.5 11,11, 25 Grades with coarse SAND. 24nch casing
<br /> 9.5' 11
<br /> 100 60 99.5' 1.5 11,12, 25
<br /> -70 101') •13
<br /> r 61 101' 1.5 11,13, 27 0.0
<br /> 02.5' 14
<br /> 62 102.5 1.5 12,12, 24 104') 12 Fine SAND,trace Silt.
<br /> 63 104' 1.5 11,11, 22
<br /> 105 -75 05.5' 11
<br /> y 64 05.5 1.5 11, 24 0.0 Brown fine SAND(SP),no odor,wet. Hydrated
<br /> 107) 122 bentonite seal
<br /> 65 107' 1.5 11,11, 24 Trace Sill. (105-tor bgs)
<br /> 08.51 13
<br /> 66 08.5 1.5 10,12, 25
<br /> 110') 13
<br /> 110 _ao 67 110' 1.5 12,12, 24
<br /> 11.51 12
<br /> 68 11.5 1.5 11,10, 22 Fine to coarse SAND.
<br /> 113') 12
<br /> 69 (113% 1.5 11,12, 25 ;', 62/12 sand
<br /> 14.5 13 (107-119'bgs)
<br /> v 115 a5 70 14.5 1.5 15,13, 26 Brown medium to coarse SAND(SP),no odor,wet. 0.010 slotted
<br /> 116') 13 screen interval
<br /> 71 116' 1.5 10,12, 26 0.0 (109-119'bgs)
<br /> 17.5' 14
<br /> 72 17.5 1.5 10,11, 22 Grout inside
<br /> 119•) 11 Brown coarse SAND(SP),no odor,wet. screen interval
<br /> ar..1 73 119% 1.5 12,13, 25 0.0 (115.6-119'bgs)
<br /> 120 90 20.5' 13 Schedule 80
<br /> 2-inch end cap
<br /> End of boring at 120.5 feet bgs. (119-119.5'bgs)
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<br /> 125
<br /> -95
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<br /> y Remarks: HSA=Hollow Stem Auger
<br /> bgs=below ground surface
<br /> '=feet
<br /> ARCADIS Bottom 115.6 to119 feet of screen obstructed by grout.Actual exposed screen interval is
<br /> J 109 to 115.6 feet bgs.
<br /> � bdrastru�turq etrle/1L sties
<br /> Project um erB0046908.0000 emp a e:G:\Hproject\ENV\CHEVRON\309075\4 Project\Boring Logs\MW-6D age:3 o
<br /> w Data File:MW-6D Date3/4/2010 Brett Krehbiel
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