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MONITORING WELL SAMPLING DATA <br /> Pro ec Name e Stockton Maintenance Sta. Project Number S8475-06-24H <br /> [:Well No VW-2 Date 9/3/03 <br /> Well Diameter 4 in Field Personnel JE <br /> Casing Length 69 75 feet Screened Casing Length NA <br /> Weli Elevation 22 18 feet above MSL <br /> PURGE CHARACTERISTICS <br /> Water Depth Before Purging 53 26 ft 2 in= 1632 Gallft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 10 76 Gal Volumes Purged 3 1 <br /> Start Purging Time 1332 End Purging Time 1344 <br /> Total Time 12 min Flow Gauge to <br /> Total Volume Pumped 33 Gal Avg Flow Rate 2 8 gpm <br /> Water Depth After Purging feet Time <br /> SAMPLING 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 /> 1336 234 419 700 11 <br /> 1340 224 417 714 22 <br /> 1344 221 415 722 33 <br /> 1350 Sample <br /> iComments Purge water clear, hydrocarbon odor <br /> 1 <br /> Turbidity= 47 ntu <br /> I <br />