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1 <br /> ' MONITORING WELL SAMPLING DATA <br /> Project Name: Former Vintage Carwash Project Number: 59183-06-02 <br /> Well No.: MW-1 Date: 03/09/09 <br /> Well Diameter: 4 in. Field Personnel:BK/MOB <br /> Casing Length: 75 ft. Screened Casing Length: 25 <br /> ' Well Elevation: 12.08 feet above MSL <br /> ' PURGE CHARACTERISTICS <br /> ' Water Depth Before Purging: 29.40 ft. 2 in=.1632 Gal/ft. 4 in=.6528 Gal/ft. <br /> Calculated Water Column Volume: 29.77 gal. Volumes Purged: 3.0 <br /> Start Purging Time: 1035 End Purging Time: 1150 <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: 0.17 mg/l Free Product: (I);Thickness: <br /> ' SAMPLING CHARACTERISTICS <br /> purging Method:Deep Submersible Pump Sampling Method: Disposable Bailer <br /> ' Laboratory Analysis:TPHg,BTEX,FOCs,VOCs,Acetone,Bromate,and CrVI <br /> TIME TEMPERATURE CONDUCTIVITY pH Gallons <br /> (-C) (umhos/cm) Purged <br /> ' 1100 21.1 1,252 6.59 30 <br /> 1125 <br /> 20.7 1,267 6.67 60 <br /> 1150 21.5 11273 6.82 90 <br /> Sample <br /> 1200 <br /> ' Comments: Clear with strong hydrocarbon odor. <br /> ' Duplicate sample labeled MW-14 sampled at 1150 <br />