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f <br /> a MONITORING WELL SAMPLING DATA <br /> r[Project Name Stockton Maintenance Sta Project Number S8475-06-241 <br /> Well No VW-1 Date 11/19/03 <br /> Well Diameter 4 in Field Personnel .IE/DW <br /> Casing Length 66 71 feet Screened Casing Length NA <br /> Well Elevation 21 98 feet above MSL <br /> PURGE CHARACTERISTICS <br /> Water Depth Before Purging 53 84 ft 2 in= 1.632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 8 40 Gal Volumes Purged 3 1 <br /> Start Purging Time 1242 End Purging Time 1253 <br /> Total Time 11 min Flow Gauge to <br /> Total Volume Pumped 26 Gal Avg Flow Rate 2 4 gpm <br /> Water Depth After Purging feet Time <br /> SAMPLING CHARACTERISTICS <br /> iPurging Method Submersible Pump Sampling Method Disposable Bailer <br />! Laboratory Analysis TPHg, TPHd, BTEX, 5 FOCs by EPA Test Method 8260 <br /> TIME TEMPERATURE CONDUCTIVITY pH Gallons <br /> °C (umhos/cm) Purged <br /> 1246 210 953 734 9 <br /> 1250 212 974 724 18 <br /> 1253 214 974 727 26 <br /> 1255 Sample <br /> i <br /> Comments Purge water clear, strong hydrocarbon odor <br /> i <br /> Turbidity-- 91 nhi ' <br />