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MONI'T'ORING WELL SAMPLING DATA <br /> Project Name Stockton Yard Project Number 58100-06-62 <br /> Well No MW-6 Date 7/1/96 <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 /> Water Depth Before Pumping 59 29 ft T-2in = 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 9 6 Gal Volumes Purged 3 <br /> 1 Start Pumping Time 1202 End Pumping Time 1227 <br /> Total Time 25 min Flow Gauge 23835 to 23864 <br /> Total Volume Pumped 29 Gal Avg Flow Rate 12 gpm <br /> Water Depth After Pumping 62 82 feet Time 1229 <br /> SAMPLING CHARACTERISTICS <br /> jSampling Method disposable bailer <br /> Laboratory Analysis TPHg, TPHd, BTEX,MTBE <br /> TIME TEMPERATURE CONDUCTIVITY pH Gallons <br /> (°F) (umhos/cm) Purged <br /> 1206 767 559 636 9 <br /> 1223 746 795 638 19 <br /> 1227 73 3 608 632 29 <br /> 1245 sample <br /> comments dry after 18 gallons <br /> drawdown=3 53 <br /> % recovery=59 90= 83 % <br />