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' MONITORING WELL SAMPLING DATA <br /> Project Name Stockton Maintenance Sta Project Number 58475-06-24J <br />' Well No MW-11 Date 03/24/4 <br /> Well Diameter 4 in Field Personnel 3E/LF <br /> iCasing Length 78 feet Screened Casing Length NA <br /> [:Well Elevation 2149 feet above MSL <br /> i <br /> PURGE CHARACTERISTICS <br />' Water Depth Before Purging 51 29 ft 2 in= 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 17 44 Gal Volumes Purged 3 0 <br /> Start Purging Time 1057 End Purging Time 1117 <br /> Total Time 20 min Flow Gauge to <br />' Total Volume Pumped 53 Gal Avg Flow Rate 2 7 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/em) Purged <br /> 1 1104 21 7 884 729 18 <br /> 11 l l 214 882 728 36 <br /> i� 1117 212 886 734 53 <br /> 1120 Sample <br /> Comments Purge water clear <br /> Duplicate <br /> Turbidity=22 ntu <br />