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MONTI'ORING WELL SAMPLING DATA <br /> Project Name Stockton Maintenance Sta. Protect Number S8475-06-24C <br />' Well No MW-10 Date 12/11/02 <br /> Well Diameter 4 in Field Personnel 3E/DW <br />' Casing Length 76 20 feet Screened Casing Length NA <br /> Well Elevation 2179 feet above MSL <br /> PURGE CHARACTERISTICS <br /> Water Depth Before Purging 52 58 ft 2 in= 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 15 41 Gal Volumes Purged 3 0 <br />' Start Purging Time 1231 End Purging Time 1247 <br /> Total Time 16 min Flow Gauge to <br /> ' Total Volume Pumped 47 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/cm) Purged <br /> 1236 184 458 679 16 <br /> ' 1241 195 461 677 32 <br /> 1247 203 459 678 47 <br /> 1255 Sample <br /> 1 <br /> Comments Clear <br /> 1 <br /> Duplicate <br /> Turbidity=27 ntu <br /> • <br /> 1 <br /> 1 <br />