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MONITORING WELL SAMPLING DATA <br />' Protect Flame Stockton Maintenance Sta Protect Number 58475-06-24 <br /> Well No MW-10 Date 5/10/02 <br /> Well Diameter 4 in Field Personnel JE <br />' Casing Length 76 20 feet Screened Casing Length <br /> Well Elevation feet MSL measured from <br />' PURGE CHARACTERISTICS <br /> Water Depth Before Purging 48 98 ft 172 in= 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 17 76 Gal Volumes Purged 3 0 <br /> Start Purging Time 1443 End Purging Time 1458 <br /> Total Time 15 min Flow Gauge to <br /> Total Volume Pumped 54 Gal Avg Flow Rate 3 6 gpm <br /> Water Depth After Purging feet Time <br /> SAM[PLING CIIARACTERISTICS <br /> Purging Method Submersible Pump 11 Sampling Method Disposable Bailer <br /> Laboratory Analysis TPHg, TPHd,BTEX, 5 FOCs by EPA Test Method 8260 <br /> LTIME TEMPERATURE CONDUCTIVITY pH Gallons <br /> (°C (umhos/cm) Purged <br /> 1448 21 8 557 733 18 <br /> 1453 215 553 735 36 <br /> 1458 21 7 553 734 54 <br /> 1510 Sample <br /> Comments <br /> Turbidity=-0 030 ntu <br />