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1 <br /> MONITORING WELL SAMPLING DATA <br /> Project Name:Former Vintage Carwash Project Number: 59183-06-02 ' <br /> Well No.: GWX-1 Date: 03/30/09 <br /> Well Diameter: 4 in. Field Personnel: JJE/RB ' <br /> Casing Length: 62 ft. Screened Casing Length: 38 ft. <br /> Well Elevation: 12.66 feet above MSL ' <br /> PURGE CHARACTERISTICS ' <br /> Water Depth Before Purging: 29.31 ft. 2 in.=.1632 Gal/ft. 4 in=.6528 Gal/ft. <br /> Calculated Water Column Volume: 21.34 gal. Volumes Purged: 3.0 ' <br /> Start Purging Time: 1121 End Purging Time: 1210 <br /> Total Time: 49 min. Flow Gauge: to ' <br /> Total Volume Purged: 64 gal. Avg.Flow Rate: 1.3 gpm <br /> Water Depth After Purging: Time: ' <br /> Dissolved Oxygen: 6.83 mg/1 Free Product: (N);Thickness: <br /> 1 <br /> SAMPLING CHARACTERISTICS <br /> Purging Method: Deep Submersible Pump Sampling Method: Disposable Bailer , <br /> Laboratory Analysis: Acetone,Bromate,CrVI <br /> TIME TENTEPATURE CONDUCTIVITY pH Gallons ' <br /> (°C) (umhos/cm) Purged <br /> 1150 22.2 1,647 6.68 21 ' <br /> 1200 21.4 1,655 6.63 42 <br /> ii <br /> 1210 21.3 1,631 6.57 64 ' <br /> 1245 Sample ' <br /> Comments: Clear with strong odor ' <br />