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MONITORING WELL SAMPLING DATA <br /> Project Name Stockton Yard Project Number 58100-06-62 <br /> Well No VW-I Date 10/23/96 <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 60 37 ft 2 in = 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 3 7 Gal Volumes Purged 3 <br /> Start Pumping Time 0916 End Pumping Time 0928 <br /> Total Time 12 min Flow Gauge 27928 to 27939 <br /> ' Total Volume Pumped 11 Gal I Avg Flow Rate 0 9 gpm <br /> Water Depth After Pumping 65 60 feet Time 0928 <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 /> ' 0917 662 1297 718 4 <br /> 0919 680 1360 688 8 <br /> ' 0928 683 1339 692 11 <br /> 1000 sample <br /> comments dry after 9 gallons, strong odor <br /> drawdown= 5 23 <br /> % recovery= 61 42= 80% <br />