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MONITORING WELL SAMPLING DATA <br /> Protect Name Stockton Maintenance Sta Project Number 58475-06-24C <br />' <br /> Well No MW-8 Date 12/11/02 <br /> Well Diameter 4 in Field Personnel JE/DW <br />' Casing Length 76 60 feet Screened Casing Length NA <br /> LWell Elevation 2196 feet above MSL <br />' PURGE CHARACTERISTICS <br /> Water Depth Before Purging 52 34 ft 2 in= 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 15 84 GaI Volumes Purged 3 0 <br /> Start Purging Time 1341 End Purging Time 1353 <br /> Total Time 12 min Flow Gauge to <br />' Total Volume Pumped 48 Gal Avg Flow Rate 4 0 gpm <br /> Water Depth After Purging feet Time <br /> SAMIPLIlNG 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 /> 1345 205 475 685 16 <br /> 1349 204 510 680 32 <br /> 1353 205 534 676 48 <br /> 1400 Sample <br /> Comments Purge water clear,no odor <br /> Turbidity= 37 ntu <br />