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Advanced Nftorl ,rORING LOG
<br /> _ GeoEnvironmental, Inc.
<br /> BOREHOLE NO.: MW_
<br /> 4
<br /> 4005 North Wilson Way, Stockton, CA 95205
<br /> (209)467-1006 FAX: (209)467-1118 TOTAL DEPTH: 35'
<br /> Project: Prem Dor Drilling Co.: Cascade Drilling,Inc
<br /> Site Location: 433 West Scotts Avenue Rig/Auger Type: LAR
<br /> Stockton, California Logged By: Jo'l M. Chapman
<br /> Reviewed By: Calvin F. Lee
<br /> Project No.: AGE-NC-02-0950
<br /> Date(s) Drilled: 21 July 2005
<br /> Notes: Below surface grade(bsg) 4 Water level during drilling Page 1 of 1
<br /> i Water level in completed well
<br /> Depth Sample Blows PID Soil USCS Class and Well Well
<br /> ID /ft. (ppm) Symbol Soil Description Completion Description
<br /> 0
<br /> Water-tight cap and
<br /> traffic rated cristy box
<br /> Cement grout seal from
<br /> 0.5'to 11'bsg
<br /> —5 MW4-5 10/12/15 0 LACKFILL:Dark brown,FILL MATERIAL;
<br /> x. 10%gravel,no hydrocarbon(HC)odor. 2"Schedule 40 PVC
<br /> blank well casing
<br /> n,CLAYEY SILT;moist,low plasticity,
<br /> tency,low toughness,no HC odor. 8"Boring diameter
<br /> -10 MW4-10 9/11/14 0 ML:Brown,CLAYEY SILT;moist,low plasticity,
<br /> low consistency,low toughness,no HC odor.
<br /> Bentonite seal from 11'
<br /> to 13'bsg
<br /> -15 MW4-15 12/12/15 0 ML:Brown,CLAYEY SILT;moist,low plasticity,
<br /> low consistency,low toughness,some white mottling,
<br /> no HC odor.
<br /> #3 Lonestar sand from
<br /> i 13'to 36.5'bsg
<br /> —20— MW4-20 8/9/11 0 ML:Brown,CLAYEY SILT;saturated,low
<br /> plasticity,low consistency,low toughness,trace
<br /> fine-grained sand,no HC odor.
<br /> MW4-25 10/10/12 0 SM:Dark brown,SILTY SAND;saturated, oorl 0.020"slotted screen
<br /> -25— p y — from 15'to 35'bsg
<br /> graded,fine-grained,appx.25%silt,no HC odor.
<br /> -30 MW4-30 9/10/12 0 SM:Dark brown,SILTY SAND;saturated,poorly
<br /> graded,fine-grained,appx.25%silt,no HC odor.
<br /> ML:Brown,CLAYEY SILT;saturated,low
<br /> plasticity,low consistency,low toughness,no HC
<br /> odor.
<br /> -35 MW4-35 9/9/12 0 CH:Dark gray-blue,CLAY;moist,high plasticity, Cap at 35'bsg
<br /> high consistency,high toughness,no HC odor.
<br /> SP:Brown,SAND;saturated,poorly graded,
<br /> fine-grained,no HC odor.
<br /> CH:Dark gray-blue,CLAY;very moist,high
<br /> plasticity,high consistency,high toughness,noHC
<br /> odor.
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