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<br /> Advanced BORING LOG
<br /> �
<br /> GeoEnvironmental� Inc. BOREHOLE NO MW-1
<br /> 837 Shaw Road, Stockton, CA 95215
<br />' (209) 467-1006 FAX (209)467-1118 TOTAL DEPTH 85'
<br /> Project Former Blue Star Gasoline Drilling Co Cascade Drilling,Inc
<br /> Site Location 4040 East Main Street Rig/Auger Type CME-75HT
<br /> Stockton, California Logged By Jo'l Chapman
<br /> Reviewed By Calvin Lee
<br /> Protect No AGE-NC-01-0886 Date(s) Drilled 02 May 2005
<br /> Notes sz Water level during drilling Page 1 of 1
<br />' = Water level in completed well
<br /> Depth Sample Blows PID Soil USCS Class and Well Well
<br />' ID (per 6") (ppm) Symbol Soil Description Completion Description
<br /> 0
<br /> SP Brown,SAND,dry,fine-grained backfill,no Well cover Cnsty box
<br /> hydrocarbon(HQ odor
<br /> —5 MWl-5 NM
<br /> —lo MW110 NM
<br /> —12 50 MWl-15 175 SM Brown,SILTY SAND,dry,poorly graded,
<br />' fine-grained,HC staining,strong HC odor
<br /> MW 1 20 77 ML Brown,SILT,moist,low plasticity,low to high 56eattcement from 0 5'to
<br /> consistency,low toughness,HC staining,strong HC g
<br /> odor
<br />' —25 MW1-25 5
<br /> 2"Diameter,Schedule
<br /> 40 PVC with 0 020"
<br /> —30— MW I.30 g slotted screen
<br />' —35— MW 1-35 302 ML Brown,CLAYEY SILT,moist,low plasticity,
<br /> high consistency,low toughness,HC staining,HC
<br /> odor
<br /> —40 MW1-40 NM
<br /> ML Brown,SILT,moist,low plasticity,low
<br /> -45— consistency,low toughness,HC staining,strong HC
<br /> MW 1 45 2 odor
<br />' —50 MWI-5o 2
<br /> 5M Brown,SILTY SAND,moist,poorly graded,
<br /> —5 5 fine-grained,HC odor
<br />' MW 1-55 2 MI, Brown,SILT,moist,low plasticity,low
<br /> consistency,low toughness,HC staining,HC odor Bentonite
<br /> 58ebsip seal from
<br /> —60 MW1-60 8 g
<br /> SM Brown,SILTY SAND,moist,poorly graded,
<br /> fine-grained,HC odor
<br /> MWl-65 5
<br /> ML Brown,CLAYEY SILT,moist,low plasticity,
<br /> —70— MW 1-70 2 moderate consistency,low toughness,no HC odor
<br /> 43 Lonestar sand filter
<br />' 4 SM Brown,SILTY SAND,saturated,poorly graded, pack from 58'to 85'hsg
<br /> —75--
<br /> 5 fine-grained,no HC odor
<br /> MW 1-75 1
<br /> ML Brown,SILT,saturated,low plasticity,low
<br /> { consistency,low toughness,no HC odor
<br /> $0
<br /> MWI-80 3 Cap at 80'bsg
<br /> SM Brown,SILTY SAND,saturated,well graded,
<br /> fine-to medium-grained,no HC odor
<br /> —85— MW1-85 NM SM Brown,SANDY SILT,saturated,poorly graded,
<br />' fine-grained,no HC odor
<br /> —9 0 ML Broom,SILT,saturated,low plasticity,tow
<br /> consistency,low toughness,no HC odor
<br />
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