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' MONITORING WELL SAMPLING DATA <br /> Project Name: Former Vintage Carwash Project Number: 59183-06-02 <br /> ' Well No.: MW-1 Date: 03/23/09 <br /> Well Diameter: 4 in. Field Personnel: JJE/MOB <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: 29.38 ft. 2 in.=.1632 Gal/ft. 4 in=.6528 Gal/ft. <br /> Calculated Water Column Volume: 29.78 gal. Volumes Purged: 3.0 <br /> ' Start Purging Time: 1041 End Purging Time: 1156 <br /> Total Time: 75 min. Flow Gauge: to <br /> Total Volume Purged: 90 gal. Avg.Flow Rate: 1.2 gpm <br /> Water Depth After Purging: Time: <br /> Dissolved Oxygen: 0.09 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 /> 1106 22.0 1,356 6.96 30 <br /> 1131 20.4 1,351 6.72 60 <br /> 1156 20.9 1,336 6.64 90 <br /> 1205 Sample <br /> i <br /> Comments: Clear with strong hydrocarbon odor. <br />