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Appendix C-Historical Groundwater Elevations and TCE/cis-1,2-DCENC Concentrations <br /> 2013 Annual Report <br /> Former Nestle USA,Inc.Facility <br /> Ripon,California <br /> Well M-50A <br /> Well ID:M-50A <br /> Aquifer:Upper A <br /> Top Elevation:66.13 10,000 50 <br /> Bottom Elevation:1.13 <br /> Screen Depth:50-65 <br /> Total Depth:65 <br /> Diameter:2" <br /> Sampling Schad:NR/Q 1,000 40 <br /> elevatlons in feet mean sea level Q N <br /> depths in feet below ground surface O- — <br /> Ow <br /> J @ <br /> z 100 30 w <br /> N nA d <br /> O n E <br /> _ N <br /> 10 0 20 <br /> C � <br /> 0 li <br /> 1 10 <br /> 0 <br /> O O O ® O O O O <br /> 0 0 <br /> Jan-10 Jan-11 Jan-12 Jan-13 Jan-14 <br /> F_ —TCE IS —VC —Waley EI.-fi- <br /> Note: All concentration values that are less than the detection limit have been plotted as one-half of the detection limit. Detection limits are <br /> typically 0.5 ppb,but range from 0.5 to 500 ppb,historically. See Appendix B for specific values. <br />