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1 <br /> MONITORING WELL SAMPLING DATA <br /> ' Project Name: Former Vintage Carwash Project Number: S9183-06-02 <br /> Well No.: MW-1 Date: 05/11/09 <br /> Well Diameter: 4 in. Field Personnel: JJE/RB <br /> ' Casing Length: 75 ft. Screened Casing Length: 25 ft. <br /> Well Elevation: 12.08 feet above MSL <br /> rPURGE CHARACTERISTICS <br /> ' Water Depth Before Purging: 29.40 ft. 2 in=.1632 Gal/ft. 4 in=.6528 Ga]/ft. <br /> Calculated Water Column Volume: 29.77 gal. Volumes Purged: 3.0 <br /> ' Start Purging Time: 1050 End Purging Time: 1130 <br /> Total Time: 40 min. Flow Gauge: to <br /> ' Total Volume Purged: 90 gal. Avg.Flow Rate: 2.3 gpm <br /> Water Depth After Purging: Time: <br /> ' Dissolved Oxygen: 0.27 mg/l Free Product: (N); Thiclmess: <br /> ' SAMPLING CHARACTERISTICS <br /> Purging Method:Deep Submersible Pump Sampling Method: Disposable Bailer <br /> Laboratory Analysis:TPHg,BTEX, 1,2-DCA,Ethanol,Naphthalene,Acetone,Bromate,CrVI <br /> TIME TEMPERATURE CONDUCTIVITY pH Gallons <br /> °C (umhos/cm) Purged <br /> ' 1100 22.4 1,187 6.74 29 <br /> 1120 20.8 1,216 6.83 58 <br /> ' 1130 21.3 1,192 6.74 90 <br /> 1150 Sample <br /> Comments: Clear with strong hydrocarbon odor. <br /> ' Duplicate sample labeled MW-14 collected at 1215 <br /> 1 <br />