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MONITORING WELL SAMPLING DATA <br /> Project Name Stockton Yard Protect Number 58100-06-62 <br /> ' Well No MW- 1 Date 10/23/96 <br /> Well Diameter 4 in Field Personnel IM/RS <br /> ' Casing Length 76 feet Screened Casing Length <br /> Well Elevation feet MSL measured from <br /> 1 <br /> PURGE CHARACTERISTICS <br /> ' Water Depth Before Pumping 60 16 ft 2 in = 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 10 3 Gat Volumes Purged 3 <br /> Start Pumping Time 0852 End Pumping Time 0900 <br /> Total Time 8 min Flow Gauge 27886 to 27917 <br /> ' Total Volume Pumped 31 Gal Avg Flow Rate 3 9 gpm <br /> Water Depth After Pumping 64 86 feet Time 0900 <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 /> 0854 665 1440 797 10 <br /> 0857 678 1436 746 21 <br /> ' 0900 678 1427 731 31 <br /> 0910 sample <br /> ' comments strong odor <br /> drawdown=4 7 <br /> recovery =60 81 = 86% <br /> 1 <br />