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MONITORING WELL SAMPLING DATA , <br /> Project Name: Former Vintage Carwash Project Number: S9183-06-02 ' <br /> Well No.: MW-3 Date: 02/09/09 <br /> Well Diameter: 4 in. Field Personnel: JJE/RB ' <br /> Casing Length: 75 ft. Screened Casing Length: 25 ft. <br /> Well Elevation: 10.88 feet above MSL ' <br /> PURGE CHARACTERISTICS ' <br /> Water Depth Before Purging: 28.30 ft. 2 in.—:1632 Gal/ft. 4 in..6528 Gal/ft. <br /> Calculated Water Column Volume: 30.49 gal. Volumes Purged: 3.0 ' <br /> Start Purging Time: 1310 End Purging Time: 1355 <br /> Total Time: 45 min. Flow Gauge: to ' <br /> Total Volume Purged: 92 gal. Avg.Flow Rate: 2.0 gpm <br /> Water Depth After Purging: Time: , <br /> Dissolved Oxygen: 0.44 mg/1 Free Product: (1);Thickness: <br /> SAMPLING CHARACTERISTICS <br /> Purging Method:Deep Submersible Pump Sampling Method: Disposable Bailer ' <br /> Laboratory Analysis:TPHg,BTEX,FOCs,VOCs,Acetone,Bromate, CrVI <br /> TIME TEMPERATURE CONDUCTIVITY pH Gallons ' <br /> (°C) (umhos/cm) Purged <br /> 1326 22.4 1,214 6.80 30 , <br /> 1342 21.4 1,277 6.65 60 <br /> 1355 21.4 1,275 6.75 92 ' <br /> i <br /> 1415 Sample ' <br /> Comments: Clear with strong odor. ' <br /> Duplicate sample labeled MW-12 sampled at 1430 ' <br />