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MONITORING WELL SAMPLING DATA <br /> Project Name Stockton Maintenance Sta. Project Number S8475-06-24I <br /> Well No MW-11 Date 11/19/03 <br /> Well Diameter 4 in Field Personnel JE/DW <br /> Casing Length 78 feet Screened Casing Length NA <br /> Well Elevation 2149 feet above MSL <br /> PURGE CHARACTERISTICS <br /> Water Depth Before Purging 53 39 ft 2 in= 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 16 06 GaI Volumes Purged 3 1 <br /> Start Purging Time 0922 End Purging Time 0940 <br /> Total Time I8 min Flow Gauge to <br /> Total Volume Pumped 49 Gal Avg Flow Rate 2 7 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 /> 0928 206 941 735 17 <br /> 0934 196 967 725 34 <br /> 0940 201 968 727 49 <br /> I <br /> 0950 Sample <br /> Comments Purge water clear <br /> Turbidity= 19 ntu <br />