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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 /> Z c w y a c Well/Boring.
<br /> O a: c 3 u v Stratigraphic Description Construction
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<br /> CL W E E $ 3 > R 'o
<br /> LO w w w m z a Q r�
<br /> ._, 51 (86'- 0.0 10,11, 22 0.0 No recovery.
<br /> 87.5') 11
<br /> 528 1.5 10,12, 24 0.0
<br /> 69')9') 12
<br /> y. Brown fine SAND(SP),some Sill,no odor,wet.
<br /> 53 (89'- 1.5 12,13, 26 - +
<br /> 90 -90 90.5') 13 2K 11%,
<br /> �- 54 90.5' 1.5 12,12, 24 5,. `,
<br /> 92') 12
<br /> 55 (92'- 0.6 11,12, 24 No recovery.
<br /> 3.5') 12
<br /> 56 9 1.5 11,13, 27 0.0
<br /> 95')5') 14 Brown fine to medium SAND(SP),no odor,wet.
<br /> 'g�'
<br /> 95 -95 57 (95'- 1.5 10,12, 24Grout(1-105 feet
<br /> 96.5') 12 Grades with coarse SAND. bgs)
<br /> 9)
<br /> 56 96.5' 1.5 11,11, 24 0.0 Fine to medium SAND.
<br /> 98') 13 Schedule 80 2-
<br /> 59 (98'- 1.5 11,11, 25 - Grades with coarse SAND. inch casing
<br /> rr.r 99.5') 11
<br /> 100-100 60 99.5' 1.5 11,12, 25
<br /> 101') 13
<br /> 61 101'- 1.5 11,13, 27 0.0
<br /> 02.5' 14
<br /> 62 102.5 1.5 12,12, 24
<br /> 104') 12 Finene SAND,trace Silt.
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<br /> 63 1104'- 1.5 11,11, 22
<br /> 105-105 05.5' 11
<br /> 64 105.5 1.5 11,12, 24 0.0 Brown fine SAND(SP),no odor,wet. Hydrated
<br /> 107') 12 bentonite seal
<br /> 65 107'- 1.5 11,11, 24 3•+ (105-107 feet
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<br /> 08.5' 13 Trace Silt. bgs)
<br /> 66 108.5 1.5 10,12, 25
<br /> 110') 13
<br /> 110-110 67 110'- 1.5 12,12, 24 -
<br /> 11.5' 12 +
<br /> 68 111.5 1.5 11,10. 22
<br /> 113') 12 Fine to coarse SAND.
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<br /> 69 113% 1.5 11,12, 25 1sand(107-
<br /> 14.5' 13 11199 f feet bgs})
<br /> 115-115 70 14.5 1.5 15,13, 26 screen interval
<br /> Brown medium to coarse SAND(SP),no odor,wet. .010 slotted
<br /> 116') 13
<br /> 71 116'- 1.5 10,12, 26 0.0 bts;119 feet
<br /> r 17.5' 14 9
<br /> 72 117.5 1.5 10,11, 22 Brown coarse SAND(SP),no odor,wet. Grout inside
<br /> 119') 11 screen interval
<br /> 73 119'- 1.5 12,13, 25 0.0 (115.6-119 feet
<br /> 120-120 20.5' 13 bgs)
<br /> y End of boring at 120.5 feet bgs. Schedule 80 2-
<br /> inch end cap
<br /> (119-119.5 feet
<br /> bgs)
<br /> 125-225
<br /> IMP
<br /> Remarks: HSA=Hollow Stem Auger
<br /> bgs=below ground surface
<br /> '=feet
<br /> -' ARCADI S 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:3 of 3
<br /> Data File:MW-6D Date:1/4/2010 Brett Krehbiel
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