Laserfiche WebLink
MONITORING WELL SAMPLING DATA <br /> Project Name STOCKTON YARD Project Number 58100-06-62 <br /> Well No MW-4 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 99 ft 2 in= 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 8 5 Gal Volumes Purged 3 <br /> Start Pumping Time 1438 End Pumping Time 1452 <br /> Total Time 14 min Flow Gauge 22440 to 22466 <br /> Total Volume Pumped 26 Gal Avg Flow Rate 1 85 gpm <br /> Water Depth After Pumping 70 09 feet Time 1452 <br /> SAIiIPLING 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 />' 1441 722 1056 781 8 <br /> 1445 704 1007 752 16 <br />' 1452 703 996 783 26 <br /> 1505 Sample <br />' comments <br /> Draw down=9 10 ft <br />' % Recovery= 70 09- [( 8)(9 1)] =62 81 <br /> Sample @ 62 81 ft=80%Recovery <br />