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MONITORING WELL SAMPLING DATA <br /> [kP�rojec(Name Stockton M _ _Maintenance Sta Project Number 58475 06 24H <br /> Well No VW-1 Date 9/3/03 <br /> Well Diameter 4 in Field Personnel JE <br /> Casing Length 66 71 feet Screened Casing Length NA <br /> Well Elevation 21 98 feet above MSL <br /> PURGE CHARACTERISTICS <br /> Water Depth Before Purging 53 05 ft 2 in = 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 8 91 Gal Volumes Purged 3 0 <br /> Start Purging Time 1247 End Purging Time 1259 <br /> Total Time 12 mm Flow Gauge to <br /> Total Volume Pumped 27 Gal Avg Flow Rate 2 3 gpm <br /> Water Depth After Purging feet Time <br /> 10 <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 /> 1251 236 426 7 15 9 <br /> 1255 225 425 7 12 18 <br /> 1259 224 429 723 27 <br /> 1305 Sample <br /> Comments Purge water clear, strong hydrocarbon odor <br /> I <br /> Turbidity= 121 ntu <br />