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MONITORING WELL SAMPLING DATA <br /> Project Name Stockton Maintenance Sta Protect Number 58475-06-24J <br /> ' Well No MW-5 Date 03/24/04 <br /> Well Diameter 4 in Field Personnel JE/LF <br /> ' Casing Length 72 09 feet Screened Casing Length NA <br /> Well Elevation 22 03 feet above MSL <br /> PURGE CHARACTERISTICS <br /> ' Water Depth Before Purging 51 81 ft 2 in = 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 13 24 Gal Volumes Purged 3 0 <br /> tStart Purging Time 1127 End Purging Time 1146 <br /> Total Time 19 min Flow Gauge to <br />' Total Volume Pumped 40 Gal Avg Flow Rate 2 1 gpm <br /> Water Depth After Purging feet Time <br /> SAMPLING 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 /> 1133 21 1 790 791 13 <br /> 1139 222 824 759 26 <br />' 1146 219 854 763 40 <br /> 1150 Sample <br /> Comments Purge water clear,no odor <br /> Turbidity= 38 ntu <br /> 1 <br />