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MONITORING WELL SAMPLING DATA <br /> Protect Name Shop 10 Maintenance Sta Project Number 58475-06-24F <br /> Well No MW-20 Date 6/16/03 <br /> Well Diameter 4 in Field Personnel 3E/CK <br /> Casing Length 90 90 feet Screened Casing Length NA <br /> Well Elevation 22 52 feet above MSL <br /> PURGE CHARACTERISTICS <br /> Water Depth Before Purging 51 62 ft 2 in = 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 25 64 Gal Volumes Purged 3 0 <br /> Start Purging Time 1003 End Purging Time 1054 <br /> Total Time 51 mm Flow Gauge to <br /> Total Volume Pumped 77 Gal Avg Flow Rate 1 5 gpm <br /> Water Depth After Purging feet Time <br /> SAMPLING CHARACTERISTICS <br /> Purging Method Submersible Pump 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 /> 1020 23 5 643 730 25 <br /> 1037 229 642 749 50 <br /> 1054 21 9 648 7 58 77 <br /> 1100 Sample <br /> Comments Purge water clear <br /> Turbidity= 21 ntu <br />