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16 <br /> MONITORING WELL SAMPLING DATA <br /> 1 <br /> I <br /> Project Name Stockton Maintenance Sta ]Project Number 58475-06-24K <br /> ' Well No VW-1 Date 05/27/04 <br /> Well Diameter 4 to Field Personnel JE/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 52 48 ft 2 in= 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 9 29 Gal Volumes Purged 3 0 <br /> Start Purging Time 1241 End Purging Time 1253 <br /> Total Time 12 min Flow Gauge to <br /> ' Total Volume Pumped 28 Gal Avg Flow Rate 2 3 gpm <br /> Water Depth After Purging feet Time <br /> SAM[PLIING CHARACTERISTICS <br /> Purging Method Submersible Pump Sampling Method Disposable Bailer <br /> Laboratory Analysis TPHg,TPHd,BTEX, 5 FOCs by EPA Test Method 8260 <br /> TIME TEMPERATURE I CONDUCTIVITY pH Gallons <br /> °C (umhos/cm) Purged <br /> 1245 226 1090 728 9 <br /> 1249 222 1080 735 18 <br />' 1253 221 1063 734 28 <br /> 1255 Sample <br />' Comments Purge water clear, strong hydrocarbon odor <br />' Turbidity= It 5 ntu <br />