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MONITORING WELL SAMPLING DATA <br /> Project Name Stockton Yard Protect Number 58100-06-62 <br /> ' Well No MW-2 Date 10/22/96 <br /> Well Diameter 4 in Field Personnel IM/RS <br /> ' Casing Length 76 5 feet Screened Casing Length <br /> Well Elevation feet MSL measured from <br /> PURGE CHARACTERISTICS <br /> ' Water Depth Before Pumping 60 39 ft 2 in = 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 10 5 Ga] Volumes Purged 3 <br /> ' Start Pumping Time 1419 End Pumping Time 1428 <br /> Total Time 9 mm Flow Gauge 27794 to 27826 <br /> Total Volume Pumped 32 Gal Avg Flow Rate 3 6 gpm <br /> NWater Depth After Pumping 6447 feet::::] Time 1428 <br /> SAMPLING CHARACTERISTICS <br /> ' Sampling Method disposable bailer <br /> Laboratory Analysis TPHg,TPHd, BTEX, MTBE <br /> ' TIME TEMPERATURE CONDUCTIVITY pH Gallons <br /> (°F) (umhos/cm) Purged <br /> 1422 705 1010 673 10 <br /> 1425 706 979 681 21 <br /> ' 1428 705 982 687 32 <br /> 1435 sample <br /> ' comments moderate odor <br /> drawdown=4 08 <br /> i % recovery= 60 93 =87% <br /> 1 <br />