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WELL PURGING AND SAMPLING LOG <br /> Project Name BFS-STOCKTON Date 118101 <br /> Project Number 11 ST-5A Well Number MW-1 <br /> Location Stockton Recorded by A Drummond <br /> WELL PURGING. Depth to Water 1960 <br /> Purge Method 1 5"Teflon bailer Total Depth 350 <br /> Decon Method Triple rinse with DI water Water Column 154 <br /> Purge Volume 2"casing(0 16 gallft) 4"casing(0 65 gallft) 6"casing(1 47 gallft) <br /> 3 casing volumes x 016 gal/ft x 154 739 gallons <br /> DTW PURGED TEMP COND <br /> TIME (feet) (gal ) (°F) (Its/cm) pH NOTES <br /> 1245 196 0 596 765 751 Clear <br /> 1250 -- 1 5 601 781 747 Slightly murky <br /> 1255 1968 25 626 809 743 Same <br /> 1305 -- 35 625 810 743 Slightly murky <br /> 1310 1969 50 624 811 742 Same <br /> 1315 1 1969 1 75 609 784 1 741 Collected Sam le MW-1 <br /> Total Purged Volume(gallons) 75 Number of Casing Volumes 304 <br /> WELL SAMPLING, <br /> Sample Method New disposable bailer with new nylon line _ <br /> Decon Method Not applicable <br /> Sample Container Three 40-m1 glass VOA vials wl HCI <br /> Sample Identification MW-1 <br /> Verified H dac calibration <br /> C,Rl 'IN <br /> IS 18 FS1STOCTONILOG005] 1122101 <br />