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MONI'T'ORING WELL, SAMPLING DATA <br /> Protect Name Stockton Maintenance Sta Project plumber S8475-06-24F <br />' Well No MW-7 Date 6/17/03 <br /> Well Diameter 4 in Field Personnel JE/DW <br />' Casing Length 74 61 feet Screened Casing Length NA <br /> Well Elevation 21 75 feet above MSL <br /> PURGE CHARACTERISTICS <br />' Water Depth Before Purging 51 30 ft 2 in= 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 15 21 Gal Volumes Purged 3 0 <br /> Start Purging Time 0936 End Purging Time 0954 <br /> Total Time 18 min Flow Gauge to <br />' Total Volume Pumped 46 Gal Avg Flow Rate 2 6 gpm <br /> Water Depth After Purging feet Time <br /> SAMPL]TgG CHARACTIER11STICS <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) (umbos/cm) Purged <br /> 0942 21 6 1127 509 15 <br /> 0948 214 1129 553 30 <br /> 0954 214 1126 460 46 <br /> 1000 Sample <br /> Comments Purge water clear, no odor <br /> Turbtd�ty=66 ntu <br />