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HORIZON ENVIRONMENTAL INC. <br /> Specialists in Site Assessment,Remedial Testing,Design and Operation <br /> �f <br /> MONITORING WELL DATA LOG <br /> r <br /> Station No. Village West Marina Date 10-29-96 <br /> Site Address 6649 Embarcadero Drive, Stockton <br /> ,lob No. 2005.41 Sampled By Nate Graham <br /> Well No. MW-7 Casing Elev. 10.21 Well Dia. 2" <br /> Depth to Water (f=eet) 15.63 <br /> Groundwater Elevation -5.42 <br /> Total Depth 27.90 <br /> Well Volume (Gallons) 2.1 <br /> `= Field Analysis <br /> Time of Purge 0721 0723 0725 <br /> i. <br /> Cumul. Gallons Purged 2 4 6 <br /> Elec. Cond. (µmhos/cm) 3.40 3.50 3.55 <br /> =- f pH 6.19 6.11 6.06 <br /> Temperature (°F) 61.5 63.4 63.9 <br /> Dissolved Oxygen (mg/L) <br /> i Turbidity none A cloudy sl cloudy <br /> ProductlSheen none Clone none <br /> <i Odor present slight slight <br /> Total Volumes Purged 3 <br /> E= Total Gallons Purged 6 <br /> D.T.W. after Purging (Ft) 16.25 <br /> E` Purging Equipment 2-stage pump <br /> Sampling Equipment disposable bailer <br /> `i <br /> Sample Container's 2 VOAs <br /> Sample Storage Method on ice to the laboratory <br /> f <br /> ':"Notes: <br /> T.D.-D.T.W.x'VF=Casing Volume •VF=gal.lft 7'x0.17 C 3"x0.38 C 4"x0.88 CWx1.50 <br /> 4 <br />