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MONI'T®RING WELL SAMPLING DATA <br /> Protect Name STOCKTON YARD Protect Number 58100-06-62 <br /> Well No MW-6 Date 4/22/96 <br /> Well Diameter 4 in Field Personnel IM/BL <br /> Casing Length 74 feet Screened Casing Length 15 <br /> ' Well Elevation feet MSL measured from <br /> ' PURGE CHARACTERISTICS <br /> Water Depth Before Pumping 60 45 fl 1 2 in= 1632 Gal/ft 4 in = 6528 Gal/ft <br /> ' Calculated Water Column Volume 88 Gal Volumes Purged 3 <br /> ' Start Pumping Time 1355 End Pumping Time 1412 <br /> Total Time 17 min Flow Gauge 22401 to 22428 <br /> ' Total Volume Pumped 27 Gal Avg Flow Rate 1 6 gpm <br /> Water Depth After Pumping feet Time 1412 <br /> SAMPLING CHARACTERISTICS <br /> Sampling Method disposable bailer <br /> Laboratory Analysis TPHg,TPHd,BTEX,MTBE <br /> ' TIME TEMPERATURE CONDUCTIVITY pH Gallons <br /> ('F) (umhos/cm) Purged <br /> 1400 749 1103 791 9 <br /> ' 1404 738 1071 793 18 <br /> ' 1412 756 1190 792 27 <br /> ' 1420 Sample <br /> ' comments <br /> Draw down 4 86 ft <br /> ' % Recovery=65 31 - ( 80)(4 86)=62 42 <br /> Sample @ 6142 ft = 80%Recovery <br /> 1 <br />