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! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! <br /> Ce06gicaI reck`tics, In C. <br /> Groundwater Monitoring Field Log <br /> Project Name:2ty of Escalon(WDR) Well I.D.: MW-4 <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 /> 10:12 0 22.72 963 6.74 98.1 5.09 Reddish clear, no odor,very few sediments <br /> 10:18 3 20.44 802 6.20 -2.3 1.67 Reddish clear, no odor, very few sediments <br /> 10:24 6 20.50 833 6.26 -23.4 0.41 Reddish clear, no odor,very few sediments <br /> 10:30 9 20.49 888 6.35 -43.6 0.38 Reddish clear, no odor,very few sediments <br /> 10:35 Collected samples <br /> Purge Method: I]Dedicated Waterra ❑Centrifugal pump with dedicated tubing ❑Other <br /> Pumping Rate: 0.5 gal/min <br /> Well Constructed TD(n): 60.00 Sample Containers used: 3 #VOAs X preserved_non-preserved <br /> Well TD(ft): 58,26 1 #polys 100 ml X preserved_non-preserved <br /> Silt Thickness(tty 1,74 1 #polys 250 ml preserved X non-preserved <br /> Initial DTW(ft): 41,48 1 #polys 1L preserved X non-preserved <br /> Water column height (ft): 16,78 Notes: <br /> One casing volume(gal): 2,85 <br /> "Final DTW(ft: 41,51 Sampled By: E.Nona <br /> Casing diameter (in): 2" <br /> Sample Method: Waterra[H] 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 />