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MONITORING WELL SAMPLING DATA <br /> Project Name Stockton Yard Protect Number 58100-06-62 <br /> ' Well No MW-6 Date 10/22/96 <br /> Well Diameter 4 in Field Personnel IM/RS <br /> Casing Length 74 feet Screened Casing Length <br /> Well Elevation feet MSL measured from <br /> PURGE CHARACTERISTICS <br /> IWater Depth Before Pumping 59 64 ft 2 in = 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 9 4 Gal Volumes Purged 3 <br /> Start Pumping Time 1342 End Pumping Time 1356 <br /> Total Time 14 min Flow Gauge 27757 to 27785 <br /> ' Tota! Volume Pumped 28 Gal Avg Flow Rate 2 0 gpm <br /> Water Depth After Pumping 66 03 feet Time 1356 <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 /> 1 1344 71 0 967 67 9 <br /> 1347 697 980 66 19 <br /> 1356 698 971 67 28 <br /> 1410 sample <br /> ' comments dry after 20 gallons, moderate odor <br /> 1 drawdown =6 39 <br /> i % recovery=60 85 = 81 % <br />