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eo g�Tec�iccs, !`cc. <br /> Groundwater Monitoring Field Log <br /> Project Name: City of Escalon(WDR) Well I.D.: MW-10 <br /> Project No.: 894.2 Date: 8/2/2011 <br /> Project Location: 25100 River Road <br /> Escalon,CA Samples sent to: Denele Labs <br /> Cumulative <br /> Volume Purged <br /> Time (gal) Temp C. EC(µs/cm) pH ORP(millivolts) DO (mg/L) Remarks <br /> 9:43 0 20.34 767 7.40 249.9 10.43 Brownish clear, no odor, no sediments <br /> 9:50 3 17.92 753 6.83 238.5 9.71 Brownish clear, no odor, no sediments <br /> 9:55 6 17.89 752 6.91 222.3 6.88 Brownish clear, no odor, no sediments <br /> 10:00 9 17.87 752 6.83 216.4 6.82 Brownish clear, no odor, no sediments <br /> 10:05 Collected samples <br /> Purge Method: I]Dedicated Waterra ❑Centrifugal pump with dedicated tubing ❑Other <br /> Pumping Rate: 0.6 gal/min <br /> Well Constructed TD(ft):_ 54.00 Sample Containers used: 3 #VOAs X preserved-non-preserved <br /> 'Well TD(ft): 53.90 1 #polys 100 ml X preserved_non-preserved <br /> Silt Thickness(ft): 0.10 1 #polys 250 ml preserved X non-preserved <br /> Initial DTW(ft): 36.03 1 #polys 1 L preserved X non-preserved <br /> Water column height (ft): 17.57 Notes: <br /> One casing volume(gal): 2.98 <br /> "Final DTW(ft): 36.03 Sampled By: E.Nona - <br /> Casing diameter (in): 2^ <br /> Sample Method: Waterra 0 Bailer❑ Other ❑ =measured =@ sampling Purged Water Drummed: ❑ Yes No <br /> Gallons per foot of casing. 2"dia.=0.17, 3"dia.=0.38 4"dia.=0.65, 5"dia.=1.02, 6"dia.=1.48 No.of Drums: <br /> K:\Jobs\C Jobs\COE wdr 8942\GWM Field Logs\11\3rd Qtr 11 <br /> 8/3/2011 <br />