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George's Service Project Name Page 3 of' 3 Borehole No. MW-202
<br />425.2 Date
<br />6/29/98
<br />7/1/98 Project No Contractor V&W Drilling
<br />Field Geo/Eng M. Niemi Drilling Method Hollow Stem Auger
<br />Geological Technics Inc.
<br />,,,,„„„„„„ „„., B h 1 ,,„„,,„,„,„,„„ ,,,,,,,/,,,,,,,,,,,,,,ore o e Log
<br />Area & County Corner of Durham Ferry Rd. and Hwy 33/ San Joaquin Co.
<br />Borehole DIa8"
<br />Filter Pack
<br />15" 0-50'
<br />50-84Tot. Depth
<br />Annular
<br />84 Tot. Casing Depth 84' Casing Dla 2 Screened Interval 81.5-79
<br />84-77' Seal 77-75' Slot Size 0.020 " Grout 75-0' Water Depth +/-7'
<br />r±)-(4_
<br />>
<br />+- _
<br />(4 z
<br />)
<br />E
<br />a _1..,
<br />0
<br />'N
<br />0 c
<br />o
<br />u
<br />Ln
<br />— --
<br />6
<br />) fl Columnar Section 0
<br />U
<br />D 0
<br />Description
<br />Remarks
<br />OVM (ppm)
<br />— 0739 19 30
<br />39
<br />--
<br />— = —
<br />— - CL CLAY—(2.5Y6/6), very plastic, firm. 0
<br />—
<br />—
<br />—
<br />—
<br />— 0753 12 21
<br />34
<br />= _ —
<br />-- E CL SANDY CLAY—(2.5Y6/6), slight amount
<br />of very fine grained„ sand, plastic. 0 -:, ..—:. — —
<br />—
<br />_
<br />=_
<br />— 0811 CLAYEY SAND—(10YR6/6), very fine
<br />grained, some very coarse grained
<br />sand, slightly plastic.
<br />0 V)= I SC
<br />_
<br />—
<br />—
<br />— 0825 14
<br />23
<br />50
<br />
<br />/
<br />
<br /> SC CLAYEY SAND—(2.5Y5/6), very fine to
<br />fine grained, less clay then above.
<br />—
<br />_
<br />_
<br />.
<br />=
<br />.
<br />— 0846
<br />5
<br />17 50 —":- —::: °0°, c ?sos,',0„c
<br />G CLAYEY SANDY GRAVEL—gravel to 10mm,
<br />sand is very coarse grained.
<br />— •
<br />____ 0907 so ,0°,3 c'ec , °0000000( 0_0_0_0
<br />GC CLAYEY SANDY GRAVEL—gravel to 30mm,
<br />sand is very coarse grained, incomplete
<br />core.
<br />—
<br />_
<br />—
<br /> SAND r--7: CLAY
<br />0 0° GRAVEL
<br />Notes: rtA, Annular Seal n Grout
<br />Sample Submitted to Laboratory SILT
<br />60
<br />65
<br />70
<br />75
<br />80
<br />85
<br />90
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