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MONITORING WELL SAMPLING DATA <br /> ' Protect blame Stockton Maintenance Sta Project Number 58475-06-24B <br /> ' Well No MW-2 Date 10/03/02 <br /> Well Diameter 4 in Field Personnel JE/CK <br />' Casing Length 79 7 feet Screened Casing Length NA <br /> Well Elevation 21 98 feet above MSL <br /> PURGE CHARACTERISTICS <br />' Water Depth Before Purging 52 82 ft 2 in= 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 17 54 GalVolumes Purged 3 0 <br /> Start Purging Time 1052 End Purging Time 1108 <br /> Total Time 16 min Flow Gauge to <br />' Total Volume Pumped 53 Gal Avg Flow Rate 3 3 gpm <br /> Water Depth After Purging feet Time <br /> SAMPLING CHARACTERISTICS <br />' Purging Method Submersible Pump Sampling Method Disposable Bailer <br /> Laboratory Analysis TPHg,TPHd, BTEX, 5 FOCs by EPA Test Method 8260 <br />' TIME TEMPERATURE I CONDUCTIVITY pH Gallons <br /> °C {umbos/cm) Purged <br /> 1057 21 1 482 662 18 <br />' 1103 212 481 665 36 <br /> 1108 207 502 668 53 <br /> 1115 Sample <br /> Comments Purge water clear, strong odor <br />' Turbidity= 20 ntu <br /> 1 <br />