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MONITORING WELL SAMPLING DATA <br /> Protect Name Stockton Maintenance Sta Protect Number S8475-06-24J <br /> Well No MW-8 Date 3/24/04 <br /> Well Diameter 4 in Field Personnel JE/LF <br /> ' Casing Length 76 60 feet Screened Casing Length NA <br /> Well Elevation 21 96 feet above MSL <br /> PURGE CHARACTERISTICS <br /> Water Depth Before Purging 5144 ft 2 in= 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 16 42 Gal Volumes Purged 3 0 <br />' Start Purging Time 0905 End Purging Time 0925 <br /> Total Time 20 min Flow Gauge to <br /> Total Volume Pumped 50 Gal Avg Flow Rate 2 5 gpm <br /> Water Depth After Purging feet Time <br /> SAMPLING CHARACTERISTICS <br />' Purging Method Submersible Pump 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 />' 0912 228 860 777 17 <br /> 0919 220 887 777 34 <br />' 0925 216 901 776 50 <br />' 0930 Sample <br />' Comments Purge water clear, no odor <br />' Turbidity= 18 ntu <br />