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MONITORING WELL SAMPLING DATA. <br /> Protect Name Stockton Maintenance Sta. Protect Number S8475-06-24J <br /> ' Well No MW-9 Date 03/24/04 <br /> Well Diameter 4 in Field Personnel JEILF <br /> Casing Length 78 04 feet Screened Casing Length NA <br /> [:Well Elevation 20 80 feet above MSL <br /> 1 <br /> PURGE CHARAC'T'ERISTICS <br />' Water Depth Before Purging 50 48 ft 2 in= 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 17 99 Gal Volumes Purged 3 0 <br /> Start Purging Time 1032 End Purging Time 1052 <br /> Total Time 20 min Flow Gauge to <br /> Total Volume Pumped 54 Gal Avg Flow Rate 2 7 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 )~OCs by EPA Test Method 8260 <br /> TIME TEMPERATURE CONDUCTIVITY pH Gallons <br /> (°C (umhos/cm) Purged <br />' 1039 212 904 746 18 <br /> 1046 21 1 911 745 36 <br />' 1052 207 913 745 54 <br />' 1055 Sample <br /> Comments Purge water clear, no odor <br />' Turbidity= 22 ntu <br />