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MONITORING WELL. SAMPLING DATA <br /> Project Name Stockton Maintenance Sta Protect Number 58475-06-24D <br /> Well No MW-6 Date 3118/03 <br /> Well Diameter 4 in Field Personnel JE/CK <br />' Casing Length 73 35 feet Screened Casing Length NA <br /> Well Elevation 2141 feet above MSL <br />' PURGE CHARACTERISTICS <br /> Water Depth Before Purging 50 87ft 2 in= 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 14 67 Gal Volumes Purged 3 1 <br /> Start Purging Time 1317 End Purging Time 1332 <br /> Total Time 15 min Flow Gauge to <br /> Total Volume Pumped 45 Gal Avg Flow Rate 3 0 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 /> TIlv1E TEMPERATURE CONDUCTIVITY pH Gallons <br /> (°C (umhos/cm) Purged <br /> 1322 223 987 715 14 <br />' 1327 219 1033 717 28 <br /> 1332 234 1034 7 18 45 <br /> 1340 Sample <br /> Comments Purge water turbid, slight odor <br /> Turbidity= 21 ntu <br />