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<br /> Advanced BORING LOG
<br /> GeoEnvironmental Inc.
<br /> BOREHOLE NO MW-S
<br /> 837 Shaw Road, Stockton, CA 95215
<br /> (209)467-1006 FAX (209)467-1118 TOTAL DEPTH 125 FT,
<br /> Project PACRAC PRIDE -S ELDORADO Drilling Co CASCASE DRILLING
<br /> Site Location 3147 S ELDORADO STREET Rig/Auger Type B-9518-INCH H S
<br /> ' STOCKTON Logged By T CUELLAR
<br /> CALIFORNIA
<br /> Reviewed By C LEE
<br /> '
<br /> Project No AGE-NC-97-0301
<br /> Date(s) Drilled 14 JULY 2003
<br /> Notes Boring termmated at 125 ft,soil samples collected every 4 Water level during drilling
<br /> Page 1 of 3
<br /> ' 5 ft,MW-8 completed as multi-level momtortng well m Water level in completed well
<br /> Depth Sample Blows PID Soil USCS Class and Well Well
<br /> ID (per 6") (ppm) Symbol Soil Descnption Completion Descnpbon
<br /> 0
<br /> Wel]cover,water-
<br /> tight,locking cap
<br /> D
<br /> 5 CL Dark brown/ ale brown moist very stiff,silty
<br /> ' MW8-5 12/14/20 0 P rY h
<br /> CLAY,no visible sand,no odor
<br /> _10-
<br /> 10 MW8-10 16/17/19 1 ML Mottledbrownl w/white Ppt>
<br /> moist hard
<br /> clayey SILT,no visible sand
<br /> plastic,faint hydrocarbon
<br /> (HC)odor
<br /> 1
<br /> ' 15 MW8-15 20/22/23 2 — SM Brown/gray w/some white ppt,moist,dense,silly
<br /> SAND,70%fine sand&30%fines,faint HC odor
<br /> t
<br /> 20 MW8-20 21/23/24 78 SP Pale brown w/white ppt,damp,dense,SAND,less
<br /> than 5%fines,part cemented,HC odor
<br /> I`
<br /> -25— MW8-25 22/25/26 16 ML Brown w/gray,moist,hard,clayey SILT w/sand,
<br /> 80%fines&20%fine sand,faint HC odor
<br /> -30 MW8-30 21/23/24 18 ML Brown w/gray,moist,hard,clayey SILT w/sand,
<br /> Cement grout seal
<br /> 80%fines&20%fine sand,faint HC odor 1 -60 ft
<br /> 1
<br /> -35— MWS-35 22/24/26 35 MIT
<br /> ML Gray w/some white ppt,moist,hard,SILT,no
<br /> visible sand,faint HC odor
<br /> 1 _
<br /> MW840 26/27/28 9 SM Brown-gray-green,saturated,dense,silty SAND,
<br /> 60%fine sand&40%fines,faint HC odor
<br /> -45 MW8-45 27/27/29 0 —=-7 SM Gray-green,saturated,dense,silty SAND, 60%
<br /> sand&40%fines,compacted,faint HC odor
<br /> l
<br /> -50 MW8-50 24/25/27 0 SM Gray-green,saturated,dense,silty SAND,60%
<br /> sand&40%fines,compacted,faint HC odor
<br /> i
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