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MONITORING WELL SAMPLING DATA <br /> Project Name Stockton Maintenance Sta Protect Number S8475-06-24J <br /> Well No MW-10 Date 03/24/04 <br /> Well Diameter 4 in Field Personnel JE/LF <br /> Casing Length 76 20 feet Screened Casing Length NA <br /> Well Elevation 21 79 feet above MSL <br /> 1 � <br /> PURGE CHARACTERISTICS <br />' Water Depth Before Purging 51 79 ft 2 to= 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 15 93 Gal Volumes Purged 3 0 <br />' Start Purging Time 1122 End Purging Time 1142 <br /> Total Tame 20 min Flow Gauge to <br /> Total Volume Pumped 48 Gal Avg Flow Rate 2 4 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 />' 1129 212 787 820 16 <br /> 1136 208 776 783 32 <br />' 1142 207 786 779 48 <br />' 1145 Sample <br />' Comments Purge water clear <br /> Turbidity=19 ntu <br />