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GRAPHIC BORING LOG PAGE . ... OF
<br /> CLIENT Unocal PROJECT NO 1232 DRILL HOLE MW-23S/D '
<br /> SITE LOCATION 5606 Pacific Avenue Stockton California
<br /> DRILLING CO V & W Drilling TYPE OF RIG Hobart Lon ear B-81
<br /> DRILLING METHOD/EQUIPMENT HSA HOLE DIAMETER 10"
<br /> DRIVE WEIGHT/HEIGHT OF DROP 140#a30" _ REFERENCE OR DATUM Surface ,
<br /> START DATE 2/20/01 COMPLETION DATE 2/21/01
<br /> Z
<br /> H
<br /> DESCRIPTION
<br /> :VLL x a �` 0Q
<br /> z ::)
<br /> µ H � � �=to W .6H W a wZ
<br /> $ Y z J F- 0 r4 H 0 W 0 Its Followaig Order LITHOLOGY color, graill size 6oMin itngulartty
<br /> F !� CI-M 4. << 2 1st J t] W OI_ - U
<br /> rL W a*W QD Z! iq U 0 Df X; Fti!C H Cc in to fusSllS,WnST8te11Ly WettiesS
<br /> W ZW W00 crM O _lW H O W ZJ>-
<br /> 41t-rU. WM.J 00J m& F ow =:0 to
<br /> F
<br /> 75 4 3 00 1 9 74-75' SAND, olive, medium to fine sand, saturated no odor
<br /> 6 ML 760
<br /> 80 50(95' 9 50 22 79-80' SLIGHTLY CLAYEY SANDY SILT, olive, very fine
<br /> sand, saturated, no odor
<br /> 83 0
<br /> CL '85 5005' 1000 1 1 S5 0 84-85' SILTY CLAY, olive, saturated, no odor
<br /> 30-48 ML 86 5 85 5-86 5' CLAYEY SILT, olive, saturated, no odor
<br /> _ 19-32 SM 88 0 87-88' VERY SILTY SAND, olive, fine sand, saturated, no
<br /> ML odor
<br /> 90 50(95 11 00 1 4 89-90' CLAYEY SANDY SILT, olive, medium to fine sand,
<br /> saturated, no odor, some coarse sand
<br /> 38-45 90 5-91 5' CLAYEY SANDY SILT, olive, dark brown, medium
<br /> 14-2692 0 to fine sand, saturated, no odor
<br /> SM
<br /> _— -- 93 0
<br /> — —9293-VERY SILT-Y-SAND;dark-brown;very-fine sand;_ --
<br /> ML saturated, no odor
<br /> � X95 5098' 11 40 14 94-95' VERY SILTY SAND,-dark brown -very_-fine sand,_ _
<br /> T_
<br /> 17"30 saturated, no odor - ,
<br /> 97 0 95 5-96 5' SLIGHTLY SANDY SILT, dark brown, very fine
<br /> - - 14-19 - -- -sand,saturated,,-no odor----
<br /> —
<br /> SM -�97 98' SLIGHTLY SILTY SAND, olive, medium to tine sand,
<br /> 16-22 110 1 1 ML 1990 saturated e
<br /> 100 99-100' SILT, olive, saturated, no odor
<br /> 14-24 1 30 101-102' SILT, olive, saturated, no odor
<br /> 14-21 1 50 1 4 102-103' SILT, olive, saturated, no odor ,
<br /> 1040 - _
<br /> 105 — Total Depth 104'
<br /> - 110
<br /> -- - -_ �4. _
<br /> NOTES
<br /> ENVIRONMENTAL AUDIT, INC NOTE This Boring Log Represents Conditions Only at Time and Location
<br /> IndiLated Subsurface Conditions May Differ at Other Locations and
<br /> Times
<br /> LOGGED BY BHM DATE 02/20/01 APPROVED BY BHM RG ## 5649
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