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MONITORING WELL SAMPLING DAI`A. <br /> Protect Name Shop 10 Maintenance Sta Protect Number S8475-06-24B <br /> 1 Well No MW-16 Date 9/30/02 <br /> I <br /> Well Diameter 4 in Field Personnel JE/CK <br /> 1 Casing Length 78 40 feet Screened Casing Length NA <br /> Well Elevation 21 88 feet above MSL <br /> PURGE CHARACTERISTICS <br /> Water Depth Before Purging 52 56 ft 2 in= 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 16 86 Gal Volumes Purged 3 0 <br /> Start Purging Time 1310 End Purging Time 1405 <br /> Total Time 55 min Flow Gauge to <br />' Total Volume Pumped 51 Gal Avg Flow Rate 0 9 gpm <br /> Water Depth After Purging feet Time <br /> SAMPLING CEIARACI'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 />' TIME TEMPERATURE CONDUCTIVITY PH Gallons <br /> °C (umhos/cm) Purged <br /> 1325 241 398 678 17 <br />' 1344 229 390 676 34 <br /> 1405 51 <br /> 1415 Sample <br /> Comments Purge water clear, no odor <br /> Duplicate <br />' Turbidity=45 ntu <br />