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Historical Groundwater Elevations and TCE/cis-1,2-DCE/VC Concentrations <br /> 2010 Annual Report <br /> Former Nestle USA, Inc. Facility <br /> Ripon, California <br /> Well M-25C1 <br /> Well :M <br /> Aquifer: Intermediate C Jan-99 Jan-01 Jan-03 Jan-05 Jan-07 Jan-09 Jan-11 <br /> Top Elevation:66.50 100,000 60 <br /> Bottom Elevation:-92 <br /> Screen Depth: 148-158 <br /> Total Depth: 158.5 10,000 50 <br /> Diameter:6" <br /> Sampling Schad:A a °' <br /> a > <br /> m <br /> elevations in feet mean sea level J1,000 40 R <br /> depths in feet below ground surface yOj <br /> A R <br /> U) <br /> 100 o e 30 E <br /> A ° o P <br /> gR AA n iA > <br /> 10 20 R <br /> V <br /> C y <br /> O <br /> G7 <br /> 1 0 10 u_ <br /> 0 <br /> 00000 0000 0 0 0 00 <br /> 0 0 <br /> Jan-99 Jan-01 Jan-03 Jan-05 Jan-07 Jan-09 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 typically 0.5 ppb, <br /> but range from 0.5 to 500 ppb,historically. See Appendix B for specific values. <br /> Well ID:M-25C2 Well M-25C2 <br /> Aquifer: Intermediate C <br /> Top Elevation:66.54 Jan-99 Jan-01 Jan-03 Jan-05 Jan-07 Jan-09 Jan-11 <br /> Bottom Elevation:-119.96 100,000 60 <br /> Screen Depth: 176-186 <br /> Total Depth: 186.5 <br /> Diameter:5" <br /> Sampling Schad:A 10,000 50 <br /> elevations in feet mean sea levelG N <br /> depths in feet below ground surface Q N <br /> 1,000 40 m <br /> rn a <br /> 3 <br /> R <br /> U) 100 30 E <br /> y <br /> > <br /> m 10 n n n n n 20 :a <br /> C � <br /> O N <br /> U 1i <br /> 1 10 <br /> 0 0 <br /> Jan-99 Jan-01 Jan-03 Jan-05 Jan-07 Jan-09 Jan-11 <br /> — TCE ��CIS QVC —Water Elevation <br /> Appendix C <br /> Page 35 of 75 <br />