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r <br /> MONITORING WELL SAMPLING DATA <br /> P m1 <br /> Project Name Stockton Yard Project Number S80-06-62 0 <br />' Well No VW-1 Date 712196 <br /> Well Diameter 4 in Field Personnel IM/RS <br /> Casing Length 66 feet Screened Casing Length <br /> Well Elevation feet MSL measured from <br /> PURGE CHARACTERISTICS <br /> Water Depth Before Pumping 59 98 ft 2 in = 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 3 9 Gal Volumes Purged 3 <br /> Start Pumping Time 0935 End Pumping Time 0955 <br /> Total Time 20 min Flow Gauge 24085 to 24097 <br />' Total Volume Pumped 12 Gal Avg Flow Rate 0 6 gpm <br /> Water Depth After Pumping 64 60 feet Time 0956 <br /> SAMPLING CHARACTERISTICS <br /> Sampling Method disposable bailer <br /> Laboratory Analysis TPHg, TPHd,BTEX, MTBE <br /> ' TIME TEMPERATURE CONDUCTIVITY pH Gallons <br /> (°F) (umbos/cm) Purged <br /> ' 0937 744 733 6 19 4 <br /> 0939 723 727 608 8 <br /> 0955 73 5 703 607 12 <br /> ' 1005 sample <br /> comments dry after 9 gallons, 12 gallons <br /> ' drawdown=4 62 <br /> % recovery= 60 89= 80 % <br /> 1 <br />