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Advanced BORING LOG
<br /> GeoEnvironmenlal, Inc.
<br /> � BOREHOLE NO.: MW-1
<br /> 837 Shaw Road, Stockton, CA 95215
<br /> (209)467-1006 FAX: (209)467-1118 TOTAL DEPTH: 701
<br /> Project: Grewals Market Drilling Co.: Mitchell Drilling Environmental
<br /> Site Location: 4100 East Fremont Street Rig/Auger Type: CME 75/8" hollow stem
<br /> Stockton Logged By: B.Millman
<br /> California
<br /> Reviewed By: N. Henderson
<br /> Project No.: AGE-NC-97-0327 Date(s) Drilled: 02/01/00
<br /> Notes: Total depth of boring MW-1 equal to 70 feet bsg;boring xz Water Level Before Drilling page 1 of 2
<br /> completed as 2-inch diameter ground water monitoring well. Water Level After Drilling
<br /> Depth Sample Blows PID Soil USCS Class and Well Well
<br /> ID (per 6") (ppm) symbol Soil Description Completion Description
<br /> 0 Well cover(Cristy Boz)
<br /> watertight locking well
<br /> cap-
<br /> -5-
<br /> -10 MW1-10 25/50 0 1111111 ML:Pale brown,dry,hard,sandy SILT;fine sand.No
<br /> petroleum hydrocarbon(HC)odor.
<br /> —15 MW I-15 12/14/20 0 ML:Pale brown,damp,very stiff to hard,sandy SILT;
<br /> fine sand,no HC odor.
<br /> —20 MW I-20 11/15/22 0 ML:Dark brown,damp,very stiff to hard,sandy SILT;
<br /> tine sand,no HC odor.
<br /> —25 MW I-25 14/18/25 0 SM:Yellowish-orange,damp,dense,silty SAND;fine Cement grout seal from
<br /> sand,no HC odor. I'to 45.5'bsg.
<br /> —30 MW I-30 16/28/34 D jjj. SM:Yellowish-orange,damp,very dense,silty SAND;
<br /> fine sand,no HC odor.
<br /> —35 MW I-35 16/21/28 0 SM:Yellowish-orange,damp,dense,silty SAND;fine
<br /> sand,no HC odor.
<br /> —40
<br /> MW t-40 19/25132 1 ML:Brown,moist,hard,clayey SILT;no HC odor.
<br /> ML:Pale brown,dry,hard,sandy SILT;fine sand,no
<br /> —95 MWI-45 16/28/30 0 HC odor.
<br /> Bentonite seal from 45.5'
<br /> to 48' bsg.
<br /> —50 #2/12 sand from 48'to
<br /> MWI-50 20/28/35 0 ML:Dark Brown,moist,hard,sandy SILT;fine sand,no 70'bsg.
<br /> HC odor.
<br /> T5 MWI-55 10/15/20 0
<br /> SM:Brown,saturated,medium dense to dense,silty
<br /> SAND;fine sand,no HC odor.
<br /> —60 MW 1-60 50 0 SM:Dark brown,saturated,very dense,silty SAND;fine Screened interval from
<br /> sand,no HC odor. NY to 70'bsg.
<br /> —65 MW 1-65 50 0 SM:Gray-brown,saturated,very dense,silty SAND;fine
<br /> sand,no HC odor.
<br /> —70 MW 1-70 56 0 ' ' SP:Pale brown,saturated,dense,SAND;fine sand,no Well plug at TY.
<br /> HC odor.
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