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Advanced BORING LOG
<br /> GeoEnvironmental, Inc. BOREHOLE NO.: MW-4
<br /> s:f' 837 Shaw Road, Stockton, CA 95215
<br /> (209)467-1006 FAX: (209)467-1118 TOTAL DEPTH: 701
<br /> Project: Grewal's Market Drilling Co.: West HazMat Drilling
<br /> Site Location: 4100 East Fremont Street Rig/Auger Type: CME 75/8"hollow stem
<br /> Stockton Logged By: T. Cuellar
<br /> California Reviewed By: C.Lee
<br /> Project No.: AGE-NC-97-0327 Date(s) Drilled: 01/23/02
<br /> Notes: Total depth of boring MW-4 equal to 70 feet bsg;MW-4 s Water Level Before Drilling Page 1 of 1
<br /> completed as 2-inch diameter ground water monitoring well. Water Level After Drilling
<br /> Depth Sample 61ows PID Soil USCS Class and Well Well
<br /> ID (per 6") (ppm) Symbol Soil Description Completion Description
<br /> 0-
<br /> -5
<br /> NIA:No samples collected.
<br /> —10 NIA:No samples collected.
<br /> —15 MW4-15 18/22/32 0 SM:Pale reddish-brown,damp,dense,silty SAND;fine
<br /> sand,about 70%sand&30a/a fines,no odor.
<br /> 20 MW4-20 7112/18 0 1111111 ML:Pale brown wlwhite precipitation,moist,very stiff,
<br /> sandy SILT;fine sand,about 80%fines&200%sand,no
<br /> odor.
<br /> —25
<br /> MW4-25 8112/14 0
<br /> ML:Pale reddish brown,moisS very stiff,sandy,clayey
<br /> SILT;fine sand,about 80°/.fines&20%sand,no odor.
<br /> —30 MW4-30 12/19/21 0
<br /> ML:Reddish-brown,moist hard,sandy,clayey SILT;
<br /> fine sand,about 801/a fines&20%sand,no odor.
<br /> —35 MW4-35 12/18/24 0 ML:Reddish-brown w/white precipitation,damp,very
<br /> stiff to hard,sandy,clayey SILT;fine sand,about 701/6
<br /> fines&30°/a sand,no odor.
<br /> —90 MW440 10118!23 0
<br /> ML:Reddish-brown,very stiff to hard,damp,sandy,
<br /> clayey SILT;fine sand,about 80%fines&20%sand,no
<br /> —95 MW4-45 29/30/34 0 odor.
<br /> ML:Reddish-brown w/white ppt.,damp,hard,sandy,
<br /> -50 clayey SILT;fine sand,about 80°/a fines&20%sand,no
<br /> MW4-50 18/20/24 0 odor.
<br /> ML:Same as above,partly cemented.
<br /> 5'11:
<br /> MW4-55 10/18/20 0
<br /> ML:Dark brown,moist,clayey SILT with some sand;
<br /> fine sand,about 90%fines&10%sand,no odor.
<br /> —60 MW4-60 12/13/14 0
<br /> ML:Dark brown,moist/weL clayey SILT;less than 5%
<br /> sand,no odor.
<br /> —65 MW4-65 10/12/18 0 ML:Brown,wet,clayey SILT with some sand;fine sand,
<br /> about 90%fines&10°A sand,no odor.
<br /> —70 MW4-70 16/22/28 0 1111111 ML:Gray-brown,wet,sandy SILT,fine sand,about 80°/a
<br /> fines&20°/a sand,no odor.
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