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MONITORING WELL SAMPLING DATA <br /> Project Name STOCKTON YARD Protect Number 58100-06-62 <br /> ' Well No VW-2 Date 4/23/96 <br /> Well Diameter in 4 Field Personnel IM/BL <br /> ' Casing Length 70 feet Screened Casing Length 55 <br /> Weil Elevation feet MSL measured fram <br /> PURGE CHARACTERISTICS <br />' Water Depth Before Pumping 6137 ft 2 in= 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 5 6 Gal Volumes Purged 3 6 <br />' Start Pumping Time 1028 Enid Pumping Time 1036 <br /> Total Time 8 min Flow Gauge 22653 to 22673 <br />' Total Volume Pumped 20 Gal Avg Flow Rate 2 5 gpm <br /> Water Depth After.Pumping 62 18 feet Time 1036 <br /> SAMPLING CHARACTERISTICS <br />' Sampling Method 2"disposable bailer <br /> Laboratory Analysis TPHg, TPHd,BTEX, MTBE <br />' TIME TEMPERATURE CONDUCTIVITY pH Gallons <br /> (°F) (umhos/cm) Purged <br /> 1031 716 1241 729 6 <br /> 1036 71 6 1183 7 18 13 <br />' 1036 713 1205 703 20 <br />' 1040 Sample <br />' comments <br /> Draw down 0 8 P <br />' %Recovery 61 53' @ sample=80%recovery <br /> 1 <br />