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MONITORING WELL SAMPLING DATA <br /> [=pzr.-j-.,.,N-,.,me Stockton Maintenance Sta ProjectNumber S8475-06-24D <br />' Well No MW-11 Date 3/18/03 <br /> Well Diameter 4 in Field Personnel JE/CK <br />' Casing Length 78 feet Screened Casing Length NA <br /> Well Elevation 2149 feet above MSL <br />' PURGE CHARACTERISTICS <br />' Water Depth Before Purging 51 13 ft 2 in= 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 17 54 Gal Volumes Purged 3 0 <br /> Start Purging Time 1057 End Purging Time 1116 <br />' Total Time 19 mm Flow Gauge to <br /> Total Volume Pumped 53 Gal Avg Flow Rate 2 8 gpm <br /> [:WaterDepth After Purging feet Time <br /> SA I[PLING CHARAC]CERINTICS <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 (umbos/cm) Purged <br /> 1104 215 1078 709 18 <br /> 1110 220 1084 710 36 <br /> 1116 219 1098 7 10 53 <br /> 1120 Sample <br /> Comments Purge water clear, no odor <br /> Turbidity= 17 ntu <br />