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MONITORING WELL SAMPLING DATA <br /> I <br /> Project Name Stockton Yard Project Number 58100-06-62 <br /> J <br /> Well No MW-11 Date 711/96 <br /> Well Diameter 4 in Field Personnel IM/RS <br /> ICasing Length 79 5 feet Screened Casing Length <br /> Well Elevation feet MSL measured from <br /> PURGE CHARACTERISTICS <br /> Water Depth Before Pumping 59 58 ft 2 in = 1632 Gal/ft 4 in = 6528 GaVft <br /> Calculated Water Column Volume 13 Gal Volumes Purged 3 <br /> Start Pumping Time 1003 End Pumping Time 1016 <br /> Total Time 13 min Flow Gauge 23710 to 23749 <br /> ITotal Volume Pumped 39 Gal Avg Flow Rate 3 gpm <br /> Water Depth After Pumping 5986 feet Time 1016 <br /> SAMPLING CHARACTERISTICS <br /> ' Sampling Method disposable bailer <br /> Laboratory Analysis TPHg,TPHd, BTEX, MTBE <br /> TIME TEMPERATURE CONDUCTIVITY pH Gallons <br /> (°F) (umhosfcm) Purged <br /> 1007 720 640 732 13 <br /> 1012 714 649 788 26 <br /> 1016 71 9 644 798 39 <br /> ' 1020 sample <br /> ' comments <br /> drawdown =0 28 <br /> % recovery= 59 58 = 100% <br /> 1 <br />