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MONITORING WELL SAMPLING DATA <br /> 7[Protect Name Stockton Maintenance Sta Project Number 58475-06-24F <br />' Well No MW-8 Date 6/17/03 <br /> Well Diameter 4 in Field Personnel JE/DW <br /> Casing Length 76 60 feet Screened Casing Length NA <br /> Well Elevation 2196 feet above MSL <br />' PURGE CHARACTERISTICS <br /> Water Depth Before Purging 5145 ft 2 in= 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 16 41 Gal Volumes Purged 3 0 <br />' Start Purging Time 0826 End Purging Time 0844 <br /> Total Time 18 min Flow Gauge to <br />' Total Volume Pumped 50 Gal Avg Flow Rate 2 8 gpm <br /> Water Depth After Purging feet Time <br /> SAMPLING CHARACTERISTICS <br /> Purging Method Submersible Pump 11 Sampling Method Disposable Bailer <br /> Laboratory Analysis TPHg, TPHd, BTEX, 5 FOCs by EPA Test Method 8260 <br />' TIME TEMPERATURE CONDUCTIVITY pH Gallons <br /> (°C) (umhos/cm) Purged- <br /> 0832 <br /> urged0832 23 8 1104 4 11 17 <br /> 0838 224 1067 414 34 <br /> 0844 225 1056 386 50 <br /> 0855 Sample <br /> Comments Purge water clear, no odor <br /> Turbidity=42 ntu <br />