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MONITORING WELL LOG <br /> PROJECT NAME: Stockton Metro Airport LOG OF WELL BORING: MW-7 <br /> SITE ADDRESS: 5000 S.Airport Way BOREHOLE DIAM (in). 8 <br /> Stockton, California MONITORING WELL DIAM. in): <br /> DATE STARTED. May 31, 2007 DRILLER/COMPANY Jason Neff <br /> DATE COMPLETED: May 31, 2007 GreggDrillin C-57 11656407 <br /> DRILLING METHOD: Marl M-11 Hollow Stem Auger GEOLOGIST/ENGINEER Marty Wills <br /> Split Spoon Sampler Rama a Environmental <br /> CD o <br /> d m u d <br /> LL W J LL <br /> W <br /> 2o. Q N a d to N m o = <br /> W o O Q fU U d <br /> D rn m a N z D rn DESCRIPTION " W <br /> 0 <br /> 0 GRAVELLY SILT: Fill Hand cleared to 5 feet 0 <br /> FILL <br /> SILT: Brown,dry,friable,no odor/stain,while mottling <br /> 5 os <br /> e 5 <br /> Y <br /> 3h <br /> It <br /> 10 <br /> 10 <br /> e — <br /> 15 15 <br /> +o <br /> 0.8 MW-7-20 <br /> 20 <br /> 20 <br /> r <br /> e <br /> 0 0.6 Unit becomes olive colored with iron mottling. <br /> 25 25 <br /> ML <br /> 5 <br /> ° 05 <br /> 30 30 <br /> 0.6 <br /> 5 35 <br /> 35 CLAYEY SILT: Brown,slightly moist,70%silt,30%medium plasticity clay 35 <br /> zo <br /> O's V Static groundwater measured at 40.38 feet bgs on 6/27/07. 40 <br /> 40 SILT: Brown,dry,friable 40 <br /> Saturated soil encontered at 43 feet bgs, X31/07 <br /> s <br /> 5.2 MW-7-45 <br /> e 45 <br /> 45 SANDY SILT: Green,moist,dense,60%silt.40%rine sand 45 <br /> u <br /> s 6.3 <br /> Page 1 of 2 <br />