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MONITORING WELL SAMPLING DATA <br />' [Pr,:,:e,:e1:N:,me Stockton Maintenance Sta Protect Number 58475-06-24B <br />' Well No VW-2 Date 10/03/02 <br /> Well Diameter 4 in Field Personnel JE/CK <br />' Casing Length 69 75 feet Screened Casing Length NA <br /> [:Well Elevation 22 18 feet above MSL <br /> PURGE CHARACTERISTICS <br /> Water Depth Before Purging 52 92 ft 2 in= 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 10 98 Gal Volumes Purged 3 0 <br />' Start Purging Time 1120 End Purging Time 1130 <br /> Total Time 10 min Flow Gauge to <br />' Total Volume Pumped 33 Gal Avg Flow Rate 3 3 gpm <br /> Water Depth After Purging feet--- :7d Time <br /> SAMEPLING CHARACTERISTICS <br />' Purging Method Submersible Pump 11 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 /> 1123 212 505 661 11 <br /> 1126 213 508 658 22 <br /> 1130 214 514 661 33 <br /> 1145 Sample <br /> 1 <br /> Comments Purge water clear, hydrocarbon odor <br /> 1 <br /> Turbidtty= 55 ntu <br /> 1 <br /> 1 <br />