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MONITORING WELL SAMPLING DATA <br /> ' Project Name: Former Vintage Carwash Project Number: S9183-06-02 <br /> Well No.: MW-1 <br /> Date: 02/23/09 <br /> Well Diameter: 4 in. Field Personnel: JJE/RB <br /> Casing Length: 75 ft. <br /> Screened Casing Length: 25 ft. <br /> Well Elevation: 12.08 feet above MSL <br /> ' PURGE CHARACTERISTICS <br /> Water Depth Before Purging: 29.74 ft. 2 in=.1632 GaVft. 4 in=.6528 Gal/ft. <br /> ' Calculated Water Column Volume: 29.55 gal. Volumes Purged:3.0 <br /> ' Start Purging <br /> Time: 1129 End Purging Time: 1215 <br /> Total Time: 46 min. <br /> Flow Gauge: to <br /> Total Volume Purged: 89 gal. <br /> Avg.Flow Rate: 1.9 gpm <br /> Water Depth After Purging: <br /> Time: <br /> Dissolved Oxygen: 0.22 mg/1 Free Product: (1);Thickness: <br /> SAMPLING CHARACTERISTICS <br /> Purging Method:Deep Submersible Pump Sampling Method: Disposable Bailer <br /> Laboratory Analysis:Acetone,Bromate,and CrVI Gallons <br /> TEMPERATURE CONDUCTPJYIY PH <br /> TIME (00 (umhos/cm) Purged <br /> ' <br /> 1143 19.9 <br /> 1,232 4.82 30 <br /> 1159 19.5 <br /> 1,007 4.92 60 <br /> 1215 19.1 <br /> 11027 5.01 89 <br /> Sample <br /> 1230 <br /> ' Comments: Clear with strong hydrocarbon odor. <br /> 1 , <br /> ' I <br />