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MONITORING WELL SAMPLING DATA <br /> Protect Name Stockton Maintenance Sta Protect Number 58475-06-24C <br />' Well No MW-5 Date 12/11/02 <br /> Well Diameter 4 in Field Personnel JE/DW <br />' Casing Length 72 09 feet Screened Casing Length NA <br /> Well Elevation 22 03 feet above MSL <br /> PURGE CHARACTERISTICS <br />' Water Depth Before Purging 52 55 ft 2 in= 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 12 75 Gal Volumes Purged 3 1 <br />' Start Purging Time 1321 End Purging Time 1331 <br /> Total Time 10 min Flow Gauge to <br /> 1 Total Volume Pumped 39 Gal Avg Flow Rate 3 9 gpm <br /> Water Depth After Purging feet Time <br /> SAMPLING CH[ARACT]ERISTICS <br /> ' Purging Method Submersible Pump 11 Sampling Method Disposable Bailer <br /> Laboratory Analysis TPHg, TPHd,BTEX, 5 FOCs by EPA Test Method 8260 <br /> 1 TIME TEMPERATURE CONDUCTIVITY pH Gallons <br /> �C (umhos/cm) Purged <br /> 1324 203 467 683 13 <br /> 1 1327 206 485 684 26 <br /> 1331 203 461 691 39 <br /> 1339 Sample <br /> Comments Purge water clear, no odor <br /> 1 Turbidity= 46 ntu <br /> i <br /> 1 <br /> 1 <br />