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Advanced BORING LOG <br /> GeoEnvironmental, Inc. BOREHOLE NO MW-8 <br /> 7F�!' 4005 North Wilson Way, Stockton, CA 95205 <br /> �—J (209) 467-1006 FAX (209)467-1118 TOTAL DEPTH 30' <br />' Project COMFORT AIR Drilling Co V &W Drilling <br /> Site Location 1607 Turnpike Road Rig/Auger Type Boart Longyear 81/8 25" HSA <br />' Stockton Logged By Paul Dotson <br /> California Reviewed By Nuel Henderson <br />' Project No AGE-NC-95-0141 Date(s) Drilled 26 October 2000 <br /> Notes Total depth of boring 30'below surface grade Bormg Water level during drilling Page 1 of 1 <br />' completed as 2-irich diameter ground water monitoring well 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 Well cover cnsty box <br />' CL CLAY,with silt,trace of black rounded fragments, <br /> moderate plasticity brown,damp,no petroleum <br /> -5 hydrocarbon(HC)odor,very stiff to hard,80% <br /> MW8-5 10/17/32 0 recovery Cement grout seat from <br /> i <br /> 5 to]1'bsg <br />' CL SILTY CLAY,with sand,approximately 10%fine <br /> sand,some white to black colored organic matter, <br /> -10— brown,very damp,no HC odor,hard,70%recovery <br /> MWS-10 17/21/40 0 <br /> Bentonite seal tram 11' <br /> to 13' bsg <br /> CL SANDY CLAY,approximately 40%fine sand, <br /> 1 some light colored organic matter,tan to brown,moist, <br /> - no HC odor,very stiff to hard,70%recovery <br /> MW8-15 10/18/20 0 <br /> #2/12 sand from 13 to <br /> 30'bsg <br /> SC CLAYEY SAND,approximately 40%fines,fine <br />' sand,tan,saturated,no HC odor,medium dense to <br /> � dense,80%recovery <br /> -20— <br /> 2 0 <br /> MW8-20 8/14/23 0 <br /> Screened interval from <br />' 15'to 30'bsg <br /> SC CLAYEY SAND,approximately 50%fines and <br /> 50%fine sand,tan,saturated,no HC odor,medium <br /> -25— dense,90%recovery <br /> MW8-25 8/i2/16 0 <br /> 1 CLAYEY SAND,approximately 35%fines,fine <br /> sand,olive gray,saturated,HC odor,medium dense, <br /> - <br /> 30 90°10 recovery <br /> MW8-34 7130112 0 Cap at 30' <br />