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Advanced BORING LOG <br /> _ GeoEnvironmental, Inc. <br /> BOREHOLE NO MW4 <br /> I `7 837 Shaw Road, Stockton, CA 95215 <br /> {209}467-1006 FAX (209)467-1118 TOTAL DEPTH 301 <br /> Project Manteca City Corpoartion Yard Drilling Co Mitchell Drilling Environmental <br /> Site Location 210 East Wetmore Street Rig/Auger Type CME 75HT - 8" Hollow Stem Auger <br /> Manteca, California Logged By Brian W Millman <br /> Reviewed By Nuel Henderson <br /> Project No AGE-NC-99-0637 <br /> Date(s) Drilled OS April 2001 <br /> Notes Water level during drilling Page 1 of 1 <br /> Water level In completed well <br /> I I <br /> Depth I Sample Blows PID Sol] USCS Class and Well Well <br /> ID <br /> (Pe )6") (ppm} symbol Solt Description Completion Description <br /> fl Well cover cnsty box <br /> Cement grout seal from <br /> - I 5'to 5'bsg <br /> -5 MW4-5 4/4/6 0 SP Dark brown,damp to moist,POORLY GRADED I <br /> I SAND,fine sand,<5%tines,80%recovery,no Bentonite seal from 5' <br /> hydrocarbon(HC)odor to 8' bsg <br /> I <br />' -10 MW4-10 8/10/12 1 0 SP Tan,damp to moist,POORLY GRADED SAND, <br /> fine sand,<5%tines,60%recovery,no HC odor <br /> 1 #2/12 sand from 8'to <br /> 30'bsg <br /> IMW4-15 8/13/18 0 _— SP Tan damp to moist POORLY GRADED SAND <br /> THC <br /> ne sand,<5%tines,20%recovery,no f IC odor <br /> L Brown,damp,CLAYEY SILT,40%recovery,no <br />' odor — -- <br /> { <br /> -� MW4-20 9112/18 0 Screened interval from <br /> 5P Tan,saturated,POORLY GRADED SAND,tine to <br /> medium sand,<5%tines, 100%recovery,no HC odor 10'to 30'bsg <br /> � f <br /> ' I k <br /> JJ 8'Bonng diameter <br /> I -25JI € <br /> MW4-25 9/11/19 0 SP Tan,saturated,POORLY GRADED SAND,fine to 2 Casing diameter <br /> medium sand,<5%fines,30%recovery,foHC odorCL Gray,saturated,SILTY CLAY,60%recovery,no 020 slot size <br /> HC odor <br /> - D MW4-30 12/17/22 0 =— ° i Cap at 30' <br /> i == ML Gray,very most CLAYEY SILT, I00/°recovery, <br /> no HC odor <br /> 1 <br />