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MONITORING WELL SAMPLING DATA <br /> Project Name Shop10 Maintenance ntenance Sta Project Number S8475-06-24I <br /> Well No MW-25 Date 11/18/03 <br /> Well Diameter 4 in Field Personnel JE/DW <br /> Casing Length 75 00 feet Screened Casing Length <br /> Well Elevation 21 95 feet above MSL <br /> PURGE CHARACTERISTICS <br /> Water Depth Before Purging 53 39 ft 2 in = 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 14 10 Gal Volumes Purged 3 0 <br /> Start Purging Time 1032 End Purging Time 1056 <br /> Total Time 24 min Flow Gauge to <br /> Total Volume Pumped 43 Gal Avg Flow Rate 1 8 gpm <br /> Water Depth After Purging feet Time <br /> SAMPLING CHARACTERISTICS <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 /> 1040 199 690 790 14 <br /> 1048 204 711 774 28 <br /> 1056 200 720 773 43 <br /> 1105 i Sample <br /> Comments Purge water clear <br /> Turbidity =29 ntu <br /> • <br />