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MONITORING WELL, SAMPLING DATA <br />' Protect Name Stockton Maintenance Sta Protect Number 58475-06-24 <br />' Well No MW-5 Date 5110/02 <br /> Well Diameter 4 in Field Personnel JE <br />' Casing Length 72 09 feet Screened Casing Length <br /> Well Elevation feet MSL measured from <br />' PURGE CHARACTERISTICS <br /> Water Depth. Before Purging 49 Of ft 2 in = 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 15 06 Gal Volumes Purged 3 0 <br />' Start Purging Time 1415 End Purging Time 1430 <br /> Total Time 15 min Flow Gauge to <br />' Total Volume Pumped 46 Gal Avg Flow Rate 3 0 gpm <br /> Water Depth After Purging feet Time <br /> SAMPLllNG CHARACTERISTICS <br /> S CS <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 /> L <br /> 1420 220 591 728 15 <br />' 1424 216 597 732 30 <br /> 1430 220 624 729 46 <br /> 1440 Sample <br /> Comments Purge water clear, no odor <br /> Turbidity= -0 004 ntu <br /> 1 <br />