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WELL PURGING AND SAMPLING LOG <br /> Project Name BFS-STOCKTON Date 916100 <br /> Project Number 11 ST Well Number MW-2 <br /> Location Stockton Recorded by A Drummond <br /> WELL PURGING Depth to Water 1739 <br /> Purge Method 1" bailer Total Depth 353 <br /> Decon Method Triple rinse with DI water Water Column 179 <br /> Purge Volume 2"casing(0 16 gallft) 4"casing(0 65 gal/ft) 6"casing(1 47 gal/ft) <br /> 3 casing volumes x 016 gal/ft x 179 ft = 86 gallons <br /> DTW PURGED TEMP COND TURBIDITY <br /> TIME (feet) (gal ) (°F) (pslcm) pH (NTUs) NOTES <br /> 1220 1742 10 727 940 72 781 Slightly murky, odor <br /> 1226 1744 25 714 900 72 493 Murky, slight odor <br /> 1231 1745 35 716 900 72 526 Murky <br /> 1235 1745 45 719 900 72 557 Murky, slight odor <br /> 1240 1744 55 --T2--1 900 73 408 Slight odor <br /> 1250 1744 85 734 900 73 330 Slight odor <br /> 1300 1744 100 756 900 73 431 Collected Sample MW-2 <br /> 1305 -- -- -- -- -- -- and duplicate sample MW-A <br /> Total Purged Volume(gallons) 10 Number of Casing Volumes 35 <br /> WELL SAMPLING <br /> Sample Method New disposable bailer with new nylon line <br /> Decon Method Not applicable <br /> Sample Container 40-m1 glass VOA vials wl HCl <br /> Sample Identification MW-2 <br /> OBSERYMION/NOTES/CALIBRATIQN RECORD. i <br /> Verified Hanna 9812 water quality meter and La Motte 2020 turbidity meter <br /> CRlIN <br /> IS BMSTOWOML00003 XLSJ 1013100 <br />