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MONITORING WELL SAMPLING DATA <br /> r <br /> Project Name Stockton Maintenance Sta Project Number 58475-06-24K <br /> ' Well No MW-3 Date 05/27/04 <br /> Well Diameter 4 in Field Personnel IE/DW <br /> Casing Length 77 02 feet Screened Casing Length NA <br /> Well Elevation 21 92 feet above MSL <br /> 1 <br /> PURGE CHARACTERISTICS <br /> ' Water Depth Before Purging 52 22 ft 2 in= 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 16 19 Gal Volumes Purged 3 0 <br /> ' Start Purging Time 1216 End Purging Time 1237 <br /> Total Time 21 min Flow Gauge to <br /> Total Volume Pumped 49 Gal Avg Flow Rate 2 3 gpm <br /> Water Depth After Purging feet Time <br /> SAMPLING CHARACTERIST][CS <br />' Purging Method Submersible Pump Sampling Method Disposable Bailer <br /> Laboratory Analysis TPHg,TPHd, BTEX, 5 FOCs by EPA Test Method 8260 <br /> ' TIME TEMPERATUn CONDUCTIVITY pH Gallons <br /> °C (umhos/cn Purged <br /> 1223 223 974 761 16 <br /> 1230 222 951 766 32 <br /> 1237 22 1 961 762 49 <br />' 1240 Sample <br />' Comments Purge water clear <br /> Slight odor <br /> Turbidity= 76 ntu <br /> 1 <br />