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MONITORING WELL SAMPLING DATA , <br /> Project Name: Former Vintage Carwash Project Number: 59183-06-02 ' <br /> Well No.: GWX-1 Date: 03/17/09 <br /> Well Diameter:4 in. Field Personnel: JJE/MOB ' <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: 29.01 ft. 2 in=.1632 Gal/ft. 4 in=.6528 Gal/ft. <br /> Calculated Water Column Volume: 21.54 gal. Volumes Purged: 3.0 ' <br /> Start Purging Time: 1123 End Purging Time: 1159 <br /> Total Time: 36 min. Flow Gauge: to ' <br /> Total Volume Purged: 65 gal. Avg.Flow Rate: 1.8 gpm <br /> Water Depth After Purging: Time: ' <br /> Dissolved Oxygen: 0.10 mg/1 Free Product: (N);Thickness: <br /> SAMPLING CHARACTERISTICS <br /> Purging Method: Deep Submersible Pump Sampling Method:Disposable Bailer ' <br /> Laboratory Analysis:Acetone,Bromate,CrVI <br /> TIME TEMPERATURE CONDUCTIVITY pH Gallons ' <br /> (°C) (umhos/cm) Purged <br /> 1135 22.4 1,829 6.65 21 ' <br /> 1147 21.9 1,759 6.52 42 <br /> 1159 21.9 1,653 6.45 65 ' <br /> 1210 Sample ' <br /> Comments: Clear with hydrocarbon odor ' <br />