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Advanced nc d BORING LOG <br /> a- _I GeoEnvironmental- , Inc. BOREHOLE NO MW-4 <br /> 4005 North Wilson Way, Stockton, CA 95205 <br /> (209)467-1006 FAX (209)467-1118 TOTAL DEPTH 30 feet <br /> Project MBP -NAVY Drilling Co West Hazmat <br /> Site Location 2191 Navy Dnve Rig/Auger Type CME-85 <br /> IStockton Logged By P Dotson <br /> California Reviewed By N Henderson <br /> I Project No AGE-NC-98-0534 <br /> Date(s) Drilled 07-20-00 <br /> Notes Water level dunng dnlling Page 1 of 1 <br /> = Water level in completed well <br /> Depth Sample Blows PID Sod USCS Class and Well Well <br /> I ID 1 ft (ppm) Symbol Sod Description Completion Description <br /> 0 <br /> - No sample recovery <br /> -5 MW4-5 8/8/12 Cement grout sea]from <br /> -5'to-T bsg <br /> CL CLAY,brown,moist,no petroleum hydrocarbon <br /> - <br /> 10— MW4-10 919112 - (HC)odor <br /> Bentonite seal from-7' <br /> to-8' bsg <br /> CL CLAY,with silt,tan,molest,no HC odor <br /> -I5 MW4-15 12/18/22 --- #2/12 sand from-8'to <br /> -30'bsg <br /> CL CLAY,bluish-gray,saturated,no HC odor <br /> MW4-20 12/17/23 - Screened interval from <br /> -10'to-30'bsg <br />' CL CLAY,bluish-gray,saturated,no HC odor <br /> -25— MW4-25 17/23/29 <br />' - CL SILTY CLAY/CLAYEY SILT,biuish-gray, <br /> 30- MW4-30 14/17/23 saturated,no HC odor Cap at-30' <br />