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MONITORING WELL SAMPLING DATA <br /> Project Name Caltrans Shop 10 M S Project Number 58475-06-02 <br /> Well No MW-14A Date 11/20/01 <br /> Well Diameter 4 in Field Personnel 7E <br />' Casing Length 60 feet Screened Casing Length <br /> Well Elevation <br /> ' PURGE CHARACTERISTICS <br /> ' Water Depth Before Purging 50 19 ft 2 in = 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 6 40 Gal Volumes Purged 5 16 <br /> ' Start Purging Time 910 End Purging Time 9 55 <br /> Total Tune 45 min Flow Gauge to <br /> Total Volume Purged 33 Gal Avg Flow Rate gpm <br /> Water Depth After Purging feet Time <br /> ' Dissolved Oxygen mg/1 Free Product (N),Thickness inches <br /> SAMPLING CHARACTERISTICS <br /> Purging Method Sampling Method Disposable Bailer <br /> Laboratory Analysis <br /> TIME TEMPERATURE CONDUCTIVITY pH Gallons Purged <br /> (OC) (umhos/cm) <br /> ' 925 207 931 644 11 <br /> 940 225 801 661 22 <br /> ' 955 226 759 669 33 <br /> 1015 Sample <br /> Comments Water light brown,slightly silty,no odor <br /> • <br /> 1 <br />