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i MONITORING WELL SAMPLING DATA <br /> Project Name Stockton Maintenance Sta Protect Number S$475-06-24H <br /> Well No MW-1 Date 913103 <br /> Well Diameter 4 in Field Personnel JE <br /> Casing Length 80 feet Screened Casing Length NA <br /> Well Elevation 22 06 feet above MSL <br /> PURGE CHARACTERISTICS <br /> Water Depth Before Purging 52 85 ft 2 in= 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 17 72 Gal Volumes Purged 3 0 <br /> Start Purging Time 1132 End Purging Time 1153 <br /> Total Time 21 min Flow Gauge to <br /> Total Volume Pumped 54 Gal Avg Flow Rate 2 6 gpm <br /> Water Depth After Purging feet Time <br /> SANI<PLING CHARACTERISTICS <br /> Purging Method Submersible Pump 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 /> 1139 229 446 729 18 <br /> 1146 222 450 740 36 <br /> 1153 22 1 440 737 54 <br /> 1155 Sample <br /> Comments Purge water clear, odor <br /> Turbidity= 47 ntu <br />