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1 <br /> 16 MONITORING WELL SAMPLING DATA <br />' Project Name Stockton Maintenance Sta Project Number 58475-06-24D <br />' Well No MW-1 Date 3/18/03 <br /> Well Diameter 4 in Field Personnel JE/CK <br />' Casing Length 80 feet Screened Casing Length NA <br /> LWell Elevation 22 06 feet above MSL <br />' PURGE CHARACTERISTICS <br /> Water Depth Before Purging 5140 ft 2 in= 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 18 67 Gal Volumes Purged 3 1 <br />' Start Purging Time 1342 End Purging Time 1404 <br /> Total Time 22 min Flow Gauge to <br />' Total Volume Pumped 57 Gal Avg Flow Rate 2 6 gpm <br /> Water Depth After Purging feet Time <br /> SAMPLING CEL RACTERISTICS <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 TGallons <br /> °C (umhos/em) Purged <br /> 1349 21 1 1162 770 19 <br />' 1356 215 1132 730 38 <br /> 1404 21 8 1130 725 57 <br /> 1415 Sample <br /> Comments Purge water clear, odor <br /> Turbidity= 32 ntu <br />