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MONITORING WELL SAMPLING DATA <br /> Project Name: Former Vintage Carwash Project Number: S9183-06-02 <br /> Well No.: MW-1 Date: 03/30/09 <br /> Well Diameter: 4 in. Field Personnel: JJE/RB <br /> ' Casing Length: 75 ft. Screened Casing Length: 25 ft. <br /> Well Elevation: 12.08 feet above MSL <br /> ' PURGE CHARACTERISTICS <br /> Water Depth Before Purging: 29.45 ft. 2 in=.1632 Gal/ft. 4 in=.6528 Gal/ft. <br /> ' Calculated Water Column Volume: 29.74 gal. Volumes Purged: 3.0 <br /> 1 Start Purging Time: 1240 End Purging Time: 1320 <br /> Total Time: 40 min, Flow Gauge: to <br /> Total Volume Purged: 89 gal. Avg.Flow Rate: 2.2 gpm <br /> ' Water Depth After Purging: Time: <br /> Dissolved Oxygen: 6.92 mg/1 Free Product: (N);Thickness: <br /> SAMPLING CHARACTERISTICS <br /> ' Purging Method: Deep Submersible Pump Sampling Method: Disposable Bailer <br /> Laboratory Analysis: Acetone,Bromate, and CrVI <br /> TIME TEMPERATURE CONDUCTIVITY pH Gallons <br /> (°C) (umhos/cm) Purged <br /> 1250 23.4 1,304 7.00 29 <br /> 1310 20.4 1,339 6.62 58 <br /> t1320 21.1 1,340 6.58 89 <br /> 1330 Sample <br /> Comments: Clear with strong hydrocarbon odor. <br />