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WELL PURGING AND SAMPLING LOG <br /> Project Name: BFS-STOCKTON Date: 4119101 <br /> Project Number: 11ST-6C Well Number: MW-2 <br /> Location: 400 N. El Dorado Ave. Recorded by: A. Drummond <br /> WELL E!URGING: Depth to Water: 18.46 <br /> Purge Method: 1.5"Teflon bailer Total Depth: 35.05 <br /> Decon, Method: Triple rinse with DI water Water Column: 16.54 <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 0.16 -gal/ft. x 16.54 = 7.9 gallons <br /> DTW PURGED TEMP GOND. <br /> TIME (feet) (gal.) (°F) (µslcm) pH NOTES <br /> 1255 18.46 0 67.4 874 7.09 Clear, strong odor <br /> 1300g8.47 <br /> 2.5 68.0 860 7.10 <br /> Slightly murky, strong odor <br /> 13103.5 69.9 897 7.14 Same <br /> 13154.0 69.7 874 7.12 Slightly murky, slight odor <br /> 3255.5 69.6 876 7.14 Same <br /> 13306.5 69.7 873 7.12 Same <br /> 1335 18.46 7.5 70.0 920 7.10 Same <br /> 1340 18.46 8.5 70.3 883 7.14 Finished purge <br /> 1355 -- -- -- -- 1 Collected Sample MW-2 <br /> Total Purged Volume (gallons): 8.5 Number of Casing Volumes: 3.3 <br /> WELDA�Gi <br /> Sample Method: New disposable bailer with new nylon line _ <br /> Decon. Method: Not applicable <br /> Sample Container: Three 40-ml glass VOA vials wl HCI <br /> Sample Identification: MW-2 <br /> OBSERVATIONINOTESICALIBRATIO RECORD <br /> Verified Hydac calibration. <br /> C,Rl 'IN <br /> {S-BFSISTOCKTONILOG006.XLSj 4123101 <br />