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MONITORING WELL SAMPLING DATA <br /> Protect Name Stockton Maintenance Sta Protect Number 58475-06-24J <br />' Well No VW-2 Date 03/24/04 <br /> WeII Diameter 4 in Field Personnel JE/LF <br /> Casing Length 69 75 feet Screened Casing Length NA <br /> Well Elevation 22 18 feet above MSL <br /> PURGE CHARACTERISTICS <br />' Water Depth Before Purging 5198 ft 2 in = 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 11 60 Gal TVolumes Purged 3 0 <br />' Start Purging Time 1437 End Purging Time 1449 <br /> Total Time 12 min Flow Gauge to <br />' Total Volume Pumped 35 Gal Avg Flow Rate 2 9 gpm <br /> Water Depth After Purging feet Time <br /> SAMPLING 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 />' TIME TEMPERATURE CONDUCTIVITY pH Gallons <br /> °C (umhos/cm) Purged <br /> 1441 208 827 785 12 <br /> 1445 212 830 763 24 <br />' 1449 21 1 838 754 35 <br />' 1455 Sample <br />' Comments Purge water clear, hydrocarbon odor <br />' Turbidity= 49 ntu <br />