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MONI'T'ORING WELL. SAMPLING DATA <br />' Project Name Stockton Maintenance Sta. Project Number 58475-06-24B <br /> Well No MW-9 Date 10/02/02 <br /> Well Diameter 4 in Field Personnel JE/CK <br /> Casing Length 78 04 feet Screened Casing Length NA <br /> Well Elevation 20 80 feet above MSL <br /> I <br /> 1 <br /> PURGE CHARACTERISTICS I <br />' Water Depth Before Purging 51 47 ft 2 in= 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 17 34 Gal Volumes Purged 3 1 <br />' Start Purging Time 1328 End Purging Time 1342 <br /> Total Time 14 min Flow Gauge to <br />' Total Volume Pumped 53 Gal Avg Flow Rate 3 8 gpm <br /> Water Depth After Purging feet =�i <br /> Time <br /> SAMPLING 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 /> 1333 212 574 660 18 <br />' 1338 209 582 661 36 <br /> 1342 206 576 666 53 <br /> 1355 Sample <br /> Comments Purge water clear, no odor <br /> Duplica#e <br /> Turbidity= 32 ntu <br />