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MONITORING WELL SAMPLING DATA <br /> —71 Project Name: Former Vintage Carwash Project Number: S9183-06-02 ' <br /> Well No.: GWX-1 Date: 03/23/09 <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: 29.15 ft. 2 in=.1632 Gal/ft. 4 in=.6528 Gal/ft. <br /> Calculated Water Column Volume: 21.44 gal. Volumes Purged: 3.0 ' <br /> Start Purging Time: 0940 End Purging Time: 1031 <br /> KDissolve�dOxygen: <br /> Time: 51 min. Flow Gauge: to ' <br /> Volume Purged: 65 gal. Avg.Flow Rate: 1.3 gpm ' <br /> Depth After Purging: Time: <br /> 0.11 mg/1 <br /> Free Product: (I�;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/em) Purged <br /> 0957 19.6 1,865 7.00 21 ' <br /> 1014 19.3 1,718 6.92 42 <br /> 1031 20.2 1,608 6.57 65 ' <br /> 1040 Sample <br /> EDuplicatesample <br /> Clearth strong odor , <br /> 1 <br /> beled MW-12 taken at 1030. <br />