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<br /> Advanced BORING LOG
<br />' GeoEnvironmental Inc. BOREHOLE NO MW-12
<br /> 4005 North Wilson Way, Stockton, CA 95205
<br /> (209) 467-1006 FAX (209) 467-1118 TOTAL DEPTH 601
<br />' Project Former Arco Mmi Mart Drilling Co West Hazmat
<br /> Site Location 4511 Pacific Avenue Rig/Auger Type CME-75 / 10"H S
<br />' Stockton, California Logged By Brian W Millman
<br />' Project No AGE-NC-95-0128 Reviewed By N Henderson
<br /> Date(s) Drilled 06/09/00
<br /> Notes = Water level during drilling Page 1 of 2
<br />' = Water level in completed well
<br /> Depth
<br /> Sample Blows PID Soil USCS Class and Well Well
<br /> Completion
<br />' ID /ft (ppm) Symbol Soil Description 1 2 Description
<br /> 0
<br /> Traffic rated well box
<br />' at surface grade
<br /> 5 MW125 13/18/26 0 =
<br /> _— ML Brown,dry,SANDY SILT,fine sand,no
<br />' hydrocarbon(HC)odor,very stiff Cement grout sea]from
<br /> 0 5'to 21 bsg
<br /> -10 MW1210 20/29/37 0 =—
<br /> _—_ ML Light brown to fight gay,dry,CLAYEY SILT,no
<br />' HC odor,hard.
<br /> 15 MW1215 19/28/40 0 —
<br /> = ML Yellowish tan,dry,CLAYEY SILT,no HC odor,
<br /> hard
<br /> -20 M W 12-20 7111112 0
<br /> ML RedFsh brown,damp,SANDY SILT,30%fine sand,
<br /> clay present,very stiff Bentonite seal from 21'
<br /> to 23' bsg
<br />' µ MW 12 25 0 —
<br /> — 5M Redish brown,moist,CLAYEY SILT,no HC odor #3 sand from 23'to 47
<br /> bsg
<br /> MW 12-30 6113119 0 SP Orange to brown,very moist to saturated,SILTY Screen interval from
<br /> SAND,fine sand,30%silt,no HC odor,medium dense to 25'to 45'bsg
<br /> dense
<br /> —
<br /> 35--41 M W 12 1i 1 f3!1 d 1 F 9 0 Sr -Ymy,saturarea,rut J R.t,Y SORT!ill NANO,tine
<br /> sand,30-35%silt,no HC odor,medium dense to dense
<br /> -40 MW12-40 8114120 0 —
<br /> — SM Light gray,very moist,SILTY CLAY,no HC odor,
<br /> rcry still to hard
<br /> -45 MWE2 45 8112123 0
<br /> CL Light brow n,v cry moist to saturated,SIL I Y CLAY, Cap at 45'bsg
<br /> no H( odor,very stiff
<br /> I -50
<br /> M W 12-50 10/15/27 0 CL Light brown,very ry moFsE,SILTY CLAY,no HC Bentonite sea]from 47'
<br /> - odor,very stiff to 54'bsg
<br /> #3 sand from 54'to 60
<br /> bsg
<br />
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