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MONITORING WELL SAMPLING DATA <br /> ' Project Name Shop 10 Maintenance Sta Project Number S8475-06-24C <br />' Well No MW-20 Date 12/10/02 <br /> Well Diameter 4 in Field Personnel JE/DW <br /> 1 Casing Length 9090 feet Screened Casing Length NA <br /> Well Elevation 22 52 feet above MSL <br /> PURGE CHARACTERISTICS <br /> Water Depth Before Purging 52 35 ft 2 in = 1632 Gal/ft 4 m = 6528 Gal/ft <br /> Calculated Water Column Volume 25 16 Gal Volumes Purged 3 0 <br /> Start Purging Time 1346 End Purging Tune 1437 <br /> Total Time 51 min Flow Gauge to <br /> Total Volume Pumped 76 Gal Avg Flow Rate 1 5 gprn <br /> Water Depth After Purging feet Time <br /> SANIPILING 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 CONDUCTNITY pH Gallons <br />' °C (umhos/cm) Purged <br /> 1403 206 354 676 25 <br />' 1420 204 349 674 50 <br /> 1437 20 5 350 6 77 76 <br /> 1445 Sample <br /> [Comments Purge water clear <br />' Turbidity= 13 ntu <br /> 1 <br />