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MONITORING WELL SAMPLING DATA <br />' Protect Name Stockton Maintenance Sta Project Number 58475-06-24D <br />' Well No MW-10 Date 3/18/03 <br /> Well Diameter 4 in Field Personnel JE/CK <br />' Casing Length 76 20 feet Screened Casing Length NA <br /> Well Elevation 21 79 feet above MSL <br /> tPURGE CHARACTERISTICS <br /> tWater Depth Before Purging 51 52 ft 2 in = 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 16 11 Gal Volumes Purged 3 0 <br />' Start Purging Time 1122 End Purging Time 1140 <br /> Total Time 18 man Flow Gauge to <br /> Total Volume Pumped 49 Gal Avg Flow Rate 2 7 gpm <br /> Water Depth After Purging feet Time <br /> SAMPLING 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 /> 1128 213 934 743 16 <br />' 1134 212 935 741 32 <br /> 1140 214 943 740 49 <br /> 1 <br /> 1150 Sample <br /> FComments Clear <br /> Turbidity=3 8 ntu <br />