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1 Advanced ORING
<br /> � � LOG
<br /> '
<br /> GeoEnvironmental Inc. BOREHOLE NO.:MW-4
<br /> -7 837 Shaw Road, Stockton, CA 95215
<br /> �J (209)467-1006 FAX: (209)467-1118 TOTAL DEPTH: 50 feet
<br /> ' Project: RALPH SQUARE-BUI Drilling Co.: All Well Abandonment
<br /> Site Location: 2122 South Airport Way Rig/Auger Type: CME75
<br /> ' Stockton, California Logged By: REN
<br /> Project No.: AGE-NC-07-1537 Reviewed By: WRL
<br /> Date(s) Drilled: 14 June 2007
<br /> ' Notes: PID Inoperable 4 Water Level Before Drilling
<br /> Page 1 of 1
<br /> = Water Level After Drilling
<br /> ' Depth Sample Blows PID Soil USCS Class and Well Well
<br /> p ID (per 6") (ppm) Symbol Soil Description Completion Description
<br /> ' 0MM Well cover cristy box
<br /> ' Cement grout seal from
<br /> -5 MW4-5 12-17-20 CL:Dark Yellow-Orange Brown,Dry,SILTY CLAY; .5'to 26'bsg.
<br /> medium to high plasticity,medium toughness,no
<br /> hydrocarbon(HC)odor.
<br /> ' -10 MW4-10 14-21-22 ML:Dark Yellow-Orange Brown,Dry,SANDY SILT; /
<br /> 20%fine,poorly graded sand,no HC odor.
<br /> -15 MW4-15 12-17-23 ML:Dark Yellow-Orange Brown,Dry,SANDY SILT;
<br /> 20%fine,poorly graded sandd,hard consistency,no HC
<br /> odor.
<br /> -20 MW4-20 15-22-29 ML:Dark Yellow-Orange Brown,Dry,SANDY SILT;
<br /> 200 pfine,poorly graded sand,5%10mm gravel, hard
<br /> ' consistency,no HC odor.
<br /> -25 MW4-25 18-22-28 CL:Dark Yellow-Orange Brown,Dry,SILTY CLAY,
<br /> high plasticity,Medium to low toughness,5%10mm /
<br /> ' gravel,no HC odor. Bentonite seal from 26'to
<br /> 28' bsg.
<br /> ' -
<br /> 30 MW4-30 23-29-30 CL:Dark Yellow-Orange Brown,Very Slightly Moist to
<br /> Dry,SILTY CLAY;high plasticity,medium to low
<br /> toughness,5%10mm gravel,no HC odor.
<br /> ' -
<br /> 35 MW4-35 23-30-34 CL:Dark Yellow-Orange Brown,Very Slightly Moist to #3 sand from 28'to 50'
<br /> Dry,SILTY CLAY;high plasticity,medium to low
<br /> toughness,5%10mm gravel,no HC odor. bsg.
<br /> -
<br /> 40 MW4-40 19-25-37 CL:Dark Yellow-Orange Brown to Dark Yellow-
<br /> Brown,Very Slightly Moist,SILTY CLAY;high Screened interval from
<br /> plasticity,medium toughness,10% 15mm to 20mm 30'to 50'bsg.
<br /> gravel,no HC odor.
<br /> ' -
<br /> 45 MW4-45 26-26-32 CL:Dark Yellow-Brown,Moist,SILTY CLAY; -
<br /> medium to high plasticity,medium toughness,hard
<br /> consistency,no HC odor.
<br /> ' -50 MW4-50 18-25-30 ML:Dark Yellow-Brown,Moist,SANDY SILT;fine,
<br /> poorly graded,hard consistency,no HC odor. Cap at 50'.
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