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1 <br /> Advanced BORING LOG <br /> GeoEnvironmental Inc. <br />' 4005 North Wilson Way, Stockton, CA 95205 BOREHOLE NO MW-13B <br /> (209)467-1006 FAX (209)467-1118 TOTAL DEPTH 45 FEET <br /> Project WEST CLAY PROPERTIES Drilling Cc Mitchell Drilling Environmental <br /> Site Location 639 West Clay Street Rig/Auger Type CME 75 HT <br /> Stockton, Cahfornla Logged By Paul Dotson <br /> Reviewed By Nuel Henderson <br />' Project No AGE-NC-96-0235 Date(s) Dulled 26 July 2000 <br /> Notes Total depth of boring 45'below surface grade Boring sz Water level during drilling Page 1 of 1 <br />' completed as 2-uich diameter ground water momtonng well s Water level in completed well <br /> Depth Sample Blows PID Soil USCS Class and Well Weil <br />' ID (per 6") (ppm) Symbol Soil Description Completion Description <br /> 0 Well cover cnsty box <br /> No sample recovery from 5'to 15'bsg <br />' -5 <br />' -10 <br />' — SILT CLAYEY SILT trace fine sand brown very <br /> moist,very stiff,no petroleum hydrocarbon(HC)odor <br /> MW1313-15 9/12/15 - <br /> I � <br /> CL SILTY CLAY,black organic matter and light <br /> 20— brown hard dry silt clumps,brown,very moist,very <br /> MW13B-20 7/12/16 stiff,no HC odor Cement grout seal from <br /> T to 36'bsg <br />' CL SILTY CLAY,trace fine sand,black organic <br /> -25 O/Zmatter,brown to olive greenlgray(mottling),very <br /> MW13B-25 12/15/17 moist,very stiff,no HC odor <br /> I _ — SM SILTY SAND,fine sand,approximately 20% <br /> -30— Ones,gray,wet medium dense,no HC odor <br /> MW13B-30 719/13 - <br /> Iz,, CL CLAY,brown,saturated,very stiff <br /> -35 MW1313-35 9/11115 SM S[LTY SAND,very One brown to <br /> I gray,saturated, � <br /> medium dense,faint HC odor Bentonite seal from 36' <br /> to 38' bsg <br /> CL SILTY CLAY,gray to olive green,saturated,very <br /> I -4 0 stiff to hard faint HC odor #3/12 sand from 38'to <br /> MW13H-40 10/14/17 45'bsg <br /> Screened interval from <br /> 40'to 45'bsg <br /> ML CLAYEY SILT,trace fine sand,gray to olive <br /> -45— green,saturated,HC odor <br /> MW13B45 15/17/20 - Cap at 45' <br />