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MONITORING RING 'WELL SAMPLING DA'T'A. <br /> Protect Name Shop 10 Maintenance Sta Protect Number 58475-06-24A <br /> Well No VM-1 Date 7/9/02 + <br /> Well Diameter 2 in Field Personnel JE/CK <br /> Casing Length 60 feet Screened Casing Length NA <br /> Well Elevation NA <br /> PURGE CHARACTERISTICS <br /> Water Depth Before Purging 50 53 ft 2 in = 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 1 54 Ga! Volumes Purged 3 2 <br /> Start Purging Time 1202 End Purging Time 1209 <br /> Total Time 7 min Flow Gauge to <br /> Total Volume Pumped 5 Gal Avg Flow Rate 0 71 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 /> F--7TIME TEMPERATURE CONDUCTIVITY pH Gallons <br /> (OC) (umhos/cm) Purged <br /> 1204 272 756 723 2 <br /> 1206 25 5 735 742 3 <br /> 1209 241 729 736 5 <br /> 1220 Sample <br /> Comments Purge water silty, strong hydrocarbon odor <br /> Turbidity= 605 ntu <br />