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i <br /> MONITORING WELL, SAMPLING DATA <br /> Project Name Stockton Maintenance Sta Protect Number S8475-06-24C <br />' Well No MW-1 Date 12/11/02 <br /> Well Diameter 4 in Field Personnel JE/DW <br />' Casing Length 80 feet Screened Casing Length NA <br /> Well Elevation 22 06 feet above MSL <br />' PURGE CHARACTERISTICS <br />' Water Depth Before Purging 52 42ft 2 in= 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 18 00 Gal Volumes Purged 3 0 <br />' Start Purging Time 1125 End Purging Time 1144 <br /> Total Time 19 min Flow Gauge to <br /> Total Volume Pumped 54 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 />' TMM TEMPERATURE CONDUCTIVITY pH Gallons <br /> °C (umhos/cm) Purged <br /> 1131 186 494 680 18 <br /> 1138 201 499 670 36 <br /> 1144 204 501 675 54 <br /> 1 <br /> 1155 Sample <br /> Comments Purge water clear,odor <br />' Turbidity= 20 ntu <br /> i <br /> 1 <br />