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<br /> Advanced BORING LOG
<br /> GeoEnvironmentai, Inc. BOREHOLE NO MW-1
<br /> j' 837 Shaw Road, Stockton, CA 95215
<br /> (209) 467-1006 FAX (209) 467-1118 TOTAL DEPTH 70 feet
<br /> Project ARROYO SMOG Drilling Co Cascade Drilling
<br /> Site Location 3012 EAST WATERLOO ROAD Rig/Auger Type CME 9518-inch hollow stem augers
<br /> ISTOCKTON, CALIFORNIA Logged By Arthur Delcke
<br /> Reviewed By Calvin Lee
<br /> Project No AGE-NC-04-1168
<br /> Date(s) Drilled 20 JULY 2005 �
<br /> Notes s Water level during drilling Page 1 of 2
<br /> z Water level in completed well
<br /> Depth Sample Blows PID Soil USCS Class and Well Well
<br /> ID (per 6") (ppm) Symbol Soil Description Completion Description
<br /> 0
<br /> _5 ML Orange-Brown to Dark-Brown,dry,CLAYEY
<br /> MW 1-5 14/16/24 0 SILT,slight plasticity,low toughness,low to moderate
<br /> consistency,no hydrocarbon(HC)odor
<br /> i
<br />' 0 ML Orange-Brown,dry,CLAYEY SILT,low
<br /> MWl-10 12/12/16 0 plasticity,low toughness,low consistency,no HC odor
<br /> —15 ML Orange-Brown to Dark-Brown,dry,CLAYEY
<br /> SILT,moderate plasticity,moderate toughness,
<br /> MW I-15 11/15/15 0 moderate consistency,no HC odor
<br /> —
<br /> 20 CL Orange-Brown,dry,SILTY CLAY,moderate
<br /> MWl-20 14/14/11 0 plasticity,low toughness,low to moderate consistency,
<br /> no HC odor /
<br />' —25 CL Orange-Brown dry,SILTY CLAY,moderate /
<br /> plasticity,low toughness,low to moderate consistency, Cement grout seal from
<br /> MW 1-25 12/13/17 0 no HC odor / 5'to 45'bsg
<br /> —30 CL Orange-Brown,dry,SILTY CLAY,moderate
<br />' MW 1-30 14/15/17 $ plasticity,law toughness,]ow to moderate consistency,
<br /> slight HC odor
<br />' —
<br /> 35 ML Orange-Brown,dry,SANDY SILT,well-graded
<br /> (<101/6),slight plasticity,slight toughness,slight /
<br /> MWI-35 13/17/17 25 consistency,slight HC odor
<br /> ML Orange-Brown,dry,SANDY SILT,well-graded
<br /> —40 (<10%),slight plasticity,slight toughness,slight
<br />' MW 1-40 12/12/16 7 consistency,slight HC odor
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