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C'o ogtca?Tec�iccs��tc. <br /> Groundwater Monitoring Field Log <br /> Project Name: City of Escalon(WDR) Well I.D.: R-1 <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 /> 14:10 12.57 53 7.22 81.70 11.62 Collected samples <br /> Purge Method: ❑Dedicated Waterra ❑Centrifugal pump with dedicated tubing O Other <br /> Pumping Rate: gal/min <br /> Well Constructed TD(tty Sample Containers used: #VOAs preserved_non-preserved <br /> "Well TD(ft): 1 #polys 100 ml X preserved non-preserved <br /> Silt Thickness(ft): <br /> 1 #polys 250 ml preserved_X_non-preserved <br /> Initial DTW(n): <br /> 1 #polys 1 L preserved X non-preserved <br /> Water column height (ft): Notes: <br /> One casing volume(gap: <br /> Final DTW(ft): Sampled By: E.Nona �� <br /> Casing diameter (in): <br /> Sample Method: Waterra❑ Bailer❑ Other 0 •=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 8/3/2011 <br />