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MONITORING WELL SAMPLING DATA l <br /> Project Name Stockton Maintenance Sta Protect Number 58475-06-24B <br /> Well No MW-8 Date 10/02/02 <br /> Well Diameter 4 in Field Personnel JE/CK <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 44 ft 2 in= 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 15 77 Gal Volumes Purged 3 0 <br />' Start Purging Time 1225 End Purging Time 1240 <br /> Total Time 15 min Flow Gauge to <br /> Total Volume Pumped 48 Gal Avg Flow Rate 3 2 gpm <br /> Water Depth After Purging feet Time <br /> SAMPLI-NG 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 /> 1230 23 1 575 682 16 <br />' 1235 219 583 672 32 <br /> 1240 217 579 665 48 <br /> 1250 Sample <br /> Comments Purge water clear, no odor <br /> 1 <br /> Turbidity= 40 ntu <br /> 1 <br /> 1 <br />