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I <br /> MONITORING WELL SAMPLING DATA <br /> FProtect Name Stockton Maintenance Sta. Protect Number 58475-06-24J <br /> Well No MW-4 Date 3124104 <br /> Well Diameter 4 in Field Personnel JE/LF <br /> Casing Length 73 04 feet Screened Casing Length NA <br /> Well Elevation 2198 feet above MSL <br /> PURGE CHARACTERISTICS <br />' Water Depth Before Purging 51 80 ft 2 in= 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 13 87 Gal Volumes Purged 3 0 <br />' Start Purging Time 1157 End Purging Time 1216 <br /> Total Time 19 min Flow Gauge to <br /> Total Volume Pumped 42 Gal Avg Flow Rate 2 2 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 CONDUCTIVITY pH Gallons <br /> °C (umhos/cm) Purged <br /> 1203 220 871 771 14 <br /> 1210 216 875 770 28 <br />' 1216 209 888 783 42 <br />' 1220 Sample <br /> Comments Purge water clear, no odor <br /> Turbidity= 41 ntu <br />