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1 <br /> MONITORING WELL SAMPLING DATA <br /> Project Name Stockton Maintenance Sta Project Number 58475-06-24J <br /> ' Well No MW-3 Date 03/24/04 <br /> Well Diameter 4 in Field Personnel JE/LF <br /> tCasing Length 77 02 Feet Screened Casing Length NA <br /> Well Elevation 21 92 feet above MSL <br /> 1 <br /> PURGE CHARACTERISTICS <br />' Water Depth Before Purging 51 56 ft 2 in = 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 16 0 Gal Volumes Purged 3 0 <br /> Start Purging Time 1250 End Purging Time 1312 <br /> Total Time 22 mm Flow Gauge to <br /> Total Volume Pumped 50 Gal Avg Flow Rate 2 3 gpm <br /> Water Depth After Purging feet 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 CONDUCTNITY pH Gallons <br /> °C) (umhos/cm) Purged <br /> 1257 215 835 752 17 <br /> 1304 21 2 832 752 34 <br />' 1312 213 828 739 50 <br />' 1315 Sample <br /> Comments Purge water clear <br /> Slight odor <br /> Turbidity= 57 ntu <br />