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MONITORING WELL SAMPLING DATA <br /> Project Name Stockton Maintenance Sta. Project Number 58475-06-24 <br />' Well No VW-2 Date 5/10/02 <br /> Well Diameter 4 in Field Personnel JE <br />' Casing Length 69 75 feet Screened Casing Length <br /> Well Elevation feet MSL measured from <br />' PURGE CHARACTERISTICS <br />' Water Depth Before Purging 49 28 ft 2 in= 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 13 36 Gal Volumes Purged 3 0 <br /> Start Purging Time 1256 End Purging Time 1306 <br /> Total Time 10 min Flow Gauge to <br />' Total Volume Pumped 41 Gal Avg Flow Rate 4 1 gpm <br /> Water Depth After Purging feet Time <br /> SAMIPLING 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 CONDUCTIVITY pH Gallons <br /> °C (umhos/cm) Purged <br /> 1259 215 591 701 14 <br /> ' 1302 216 593 700 28 <br /> 1306 216 590 698 41 <br /> 1315 Sample <br /> Comments Purge water clear, odor <br /> Turbidity= 0 008 ntu <br /> 1 <br />