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MONITORING WELL SAMPLING DATA <br />' Project Name Shop 10 Maintenance Sta [projectNumber S8475-06-24K <br />' Well No MW-12 Date 05/26/04 <br /> Well Diameter 4 in Field Personnel JE/DW <br />' Casing Length 77 50 feet Screened Casing Length NA <br /> Well Elevation NA <br />' <br /> PURGE CHARACTERISTICS <br />' Water Depth Before Purging 51 78 ft 2 in= 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 16 79 Gal Volumes Purged 3 0 <br /> ' Start Purging Time 1216 End Purging Time 1240 <br /> Total Time 24 min Flow Gauge to <br /> Total Volume Pumped 51 Gal Avg Flow Rate 2 1 gpm <br /> Water Depth After Purging feet Time <br /> SAMIPLING 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 /> F' TIME TEMPERATURE CONDUCTIVITY pH Gallons <br /> °C (umhos/cm) Purged <br /> 1224 221 639 782 17 <br /> ' 1232 216 658 768 34 <br /> 1240 215 695 771 51 <br /> 1 <br /> 1250 Sample <br /> Comments Purge water clear <br /> 1 <br /> ' Turbidity=27 ntu <br />