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MONITORING WELL SAMPLING DATA <br /> ' <br /> Project Name Stockton Maintenance Sta Project Number S8475-06-24J <br /> of J <br /> ' Well No MW-1 Date 3124/04 <br /> Well Diameter 4 in Field Personnel JEILF <br />' Casing Length 80 feet Screened Casing Length NA <br /> Well Elevation 22 06 feet above MSL IL <br /> PURGE CHARACTERISTICS <br />' Water Depth Before Purging 51 52 ft 2 in= 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 18 59 Gal TVolumes Purged 3 0 <br /> tStart Purging Time 1320 End Purging Time 1344 <br /> Total Time 24 min Flow Gauge to <br />' Total Volume Pumped 56 Gal Avg Flow Rate 2 3 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 /> 1328 202 829 747 19 <br /> 1336 21 1 912 737 38 <br /> 1344 21 1 915 767 56 <br /> 1345 Sample <br /> Comments Purge water clear, odor <br /> Turbidity= 42 ntu <br />