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MONITORING WELL SAMPLING DA'D'A. <br /> Project Name Shop 10 Maintenance Sta Project Number 58475-06-24A <br /> Well No MW-25 Date 7/8/02 <br /> Well Diameter 4 in Field Personnel 1E/CK <br /> Casing Length 75 00 feet Screened Casing Length <br /> Well Elevation 21 95 feet above MSL <br /> PURGE CHARACTERISTICS <br /> Water Depth Before Purging 50 18 ft 2 in= 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 16 20 Gal Volumes Purged 3 0 <br /> Start Purging Time 1333 End Purging Time 1354 <br /> Total Time 21 min Flow Gauge to <br /> Total Volume Pumped 49 Gal Avg Flow Rate 2 3 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 /> [7-Ti-ME TEMPERATURE CONDUCTIVITY pH Gallons <br /> °C) (umhos/em) Purged <br /> 1340 249 473 760 16 <br /> 1347 233 488 769 32 <br /> 1354 226 485 784 49 <br /> 1405 Sample <br /> Comments <br /> Turbidity= - 004 ntu <br /> 1 <br />