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MONITORING WELL SAMPLING DATA <br /> Protect Name Stockton Maintenance Sta Project Number 58475-06-24F <br />' Well No VW-2 Date 6/17/03 <br /> Well Diameter 4 in Field Personnel 3E/DW <br /> Casing Length 69 75 feet Screened Casing Length NA <br /> Well Elevation 22 18 feet above MSL <br /> PURGE CHARACTERISTICS <br /> Water Depth Before Purging 5194 ft 2 in= 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 11 62 Gal Volumes Purged 3 0 <br />' Start Purging Time 1429 End Purging Time 1441 <br /> Total Time 12 min Flow Gauge to <br /> Total Volume Pumped 35 Gal Avg Flow Rate 2 9 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/em) Purged <br /> 1433 252 952 603 12 <br />' 1437 234 963 644 24 <br /> 1441 230 955 636 35 <br /> 1450 Sample <br /> Comments Purge water clear, hydrocarbon odor <br /> Turbidi::= 32 ntu <br />