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Date Sjart/FMiSh: 11.10.09/11.13.09 Northing:2158326.3316 Well/ - ng ID:MW-6D
<br /> ` Drilling Company: Cascade Drilling,LP , � Easting:6351551.5323 %%.W
<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 California
<br /> Sampling Method: California Modified Split Spoon
<br /> Descriptions By: Brett Krehbiel
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<br /> Z >, w y n o Well/Boring
<br /> OS Z Stratigraphic Description Construction
<br /> 2 cc
<br /> > U
<br /> LU > E E 0 o3 � Q 0
<br /> o w Co U) m z a 0
<br /> 87.5') 11 No recovery.
<br /> 52 :87.5-9.) 12 1.5 1 24 0.0
<br /> 89') 12 Brown fine SAND(SP),some Silt,no odor,wet.
<br /> 53 (89- 1.5 12,13, 26
<br /> 90
<br /> -60- .5') 13
<br /> 54 90.5' 1.5 12,12, 24
<br /> 92') 12
<br /> 55 (97- 0.0 11,12, 24
<br /> 3.5') 12 No recovery.
<br /> 56 93.5' 1.5 11,13, 27 0.0 Brown fine to medium SAND(SP),no odor,wet.
<br /> 95 95) 14
<br /> _65 57 (96- 1.5 10,12, 24 •.I Grades with coarse SAND. Grout
<br /> .5') 12 (1-105'bgs)
<br /> 58 96.5' 1.5 11,11, 24 0.0 Fine to medium SAND.
<br /> 98') 13 I Schedule 80
<br /> 59 (99- 1.5 11,11, 25 5' 11 Grades with coarse SAND. 2-inch casing
<br /> loo 60 99.5' 1.5 11,12, 25
<br /> -70 101') 13
<br /> 61 (1101% 1.5 11,13, 27 0.0
<br /> 02.5' 14
<br /> 62 102.5 1.5 12,12, 24
<br /> 104') 12 Fine SAND,trace Sift.
<br /> 63 1104% 1.5 11,11, 22
<br /> los 05.5' 11 -
<br /> -75 64 05.5 1.5 11,12, 24 0.0
<br /> 107,) 12 Brown fine SAND(SP),no odor,wet. Hydrated
<br /> bentonite seal
<br /> 65 107' 1.5 11,11, 24 Trace Silt. (105-107'bgs)
<br /> 08.5' 13
<br /> 66 08.5 1.5 10,12, 25
<br /> 110 110') 13
<br /> -80 67 110' 1.5 12,12, 24
<br /> 11.5' 12
<br /> 68 11.5 1.5 11,10, 22 Fine to coarse SAND.
<br /> 113') 12
<br /> #2112 sand
<br /> 69 113' 1.5 11,12, 25 107-119 s
<br /> 14.5' 13 ( 'b9)
<br /> lis a5 70 1116; 1.5 16,33 , 26 Brown medium to coarse SAND(SP),no odor,wet. screen interval
<br /> 71 116' 1.5 10,12, 26 0.0 (109-119'bgs)
<br /> 17'5 14 Grout inside
<br /> 72 17.5 1.5 10,11, 22 Browncoarse SAND(SP),no odor,wet. screen interval
<br /> 119') 11 (115.6-119 bgs)
<br /> 73 119' 1.5 12,13, 25 0.0 Schedule 80
<br /> 120 _.go_ 20.5' 13 2-inch end cap
<br /> End of boring at 120.5 feet bgs. (119-119.5'bgs)
<br /> 125
<br /> -95
<br /> Remarks: HSA=Hollow Stem Auger
<br /> bgs=below ground surface
<br /> Q '=feet
<br /> ARr DIS Bottom 115.6 to119 feet of screen obstructed by grout.Actual exposed screen interval is
<br /> !� 1,4 V 109 to 115.6 feet bgs.
<br /> InlrasfnfChrre,enwronmerli, "";echoes
<br /> Project um erB0046908.0000 emp a e:G:\Aproject\ENV\CHEVRON\309075\4 Project\Boring Logs\MW-6D age:3 of 3
<br /> Data File:MW-6D Date3/4/2010 Brett Krehbiel
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