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MONITORING WELL SAMPLING DATA <br /> 7Proj7ectame Shop 10 Maintenance Sta Protect Number 58475-06-24B <br />' Well No MW-19 Date 10/02/02 <br /> Well Diameter 4 in Field Personnel JE/CK <br />' Casing Length 89 60 feet Screened Casing Length NA <br /> Well Elevation 21 77 feet above MSL <br /> PURGE CHARACTERISTICS <br /> Water Depth Before Purging 52 08 ft 2 in= 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 24 49 Gal I Volumes Purged 3 0 <br />' Start Purging Time 0733 End Purging Time 0801 <br /> Total Time 28 min Flow Gauge to <br /> Total Volume Pumped 74 Gal Avg Flow Rate 2 6 gpm <br />' Water Depth After Purging feet Time <br /> SAMYLING 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 /> t TIME TEMPERATURECONDUCTNITY pH Gallons <br /> (°C (umhos/cm} Purged <br /> 0743 182 380 739 25 <br />' 0752 199 401 707 50 <br /> 0801 201 404 707 74 <br /> 1 <br /> 0810 Sample <br /> Comments Purge water clear <br /> rTurbtdity= 36 ntu <br />