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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-7 Date: 03/09/09 <br /> ' Well Diameter: 2 in. Field Personnel: BK/MOB <br /> Casing Length: 60 ft. Screened Casing Length: 30 <br /> Well Elevation: 11.73 feet above MSL <br /> ' PURGE CIIARACTERISTICS <br /> Water Depth Before Purging: 28.25 ft. 2 in..1632 Gal/ft. 4 in.—:6528 Gal/ft. <br /> ' Calculated Water Column Volume: 5.18 gal. Volumes Purged: 3.1 <br /> Start Purging Time: 0854 End Purging Time: 0900 <br /> Total Time: 6 min. Flow Gauge: to <br /> Total Volume Purged: 16 gal. Avg.Flow Rate: 2.7 gpm <br /> 1' Water Depth After Purging: Time: <br /> Dissolved Oxygen: 4.39 mg/l Free Product: (N);Thickness: <br /> SAMPLING CHARACTERISTICS <br /> ''. Purging Method: Submersible Pump Sampling Method: Disposable Bailer <br /> Laboratory Analysis:TPHg,BTEX,FOCs,VOCs,Acetone,Bromate,CrVI <br /> TIME TEMPERA'T'URE CONDUCTIVI'T'Y PH Gallons ns <br /> (OC) (umbos/cm) Purged <br /> 0856 18.5 1,415 6.64 5 <br /> 0858 20.5 1,467 6.64 10 <br /> 0900 21.0 1,464 6.63 16 <br /> 0910 Sample <br /> ' Comments:Turbid,no odor. <br />