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Historical Groundwater Elevations and TCE/cis-1,2-DCENC Concentrations <br /> 2010 Annual Report <br /> Former Nestle USA,Inc.Facility <br /> Ripon,California <br /> Well M-27A <br /> Well ID:M-27A <br /> Aquifer:UpperA/B Jan-00 Jan-01 Jan-02 Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Jan-11 <br /> Top Elevation:62.27 100,000 60 <br /> Bottom Elevation:-43.23 <br /> Screen Depth:87.5-106 <br /> Total Depth: 105.5 <br /> Diameter:2" 10,000 50 <br /> Sampling Schad:Q <br /> i <br /> elevations in feet mean sea levelQ' N <br /> Q <br /> depths in feet below ground surface J 1,000 40 m <br /> d <br /> � N <br /> S � <br /> m <br /> c 100 30 E <br /> m <br /> a > <br /> 0 <br /> 10 20 m <br /> c y <br /> 0 <br /> U li <br /> 1 10 <br /> 0000 0 <br /> 0 0 <br /> Jan-00 Jan-01 Jan-02 Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Jan-11 <br /> —TCE --CIS —VC —Water Elevation <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 /> Appendix C <br /> Page 37 of 75 <br />