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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-37D <br /> Well ID:M-37D <br /> Aquifer:Lower D <br /> Top Elevation:58.48 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Jan-11 <br /> Bottom Elevation:-35.37 100,000 60 <br /> Screen Depth:229-249 <br /> Total Depth:250 <br /> Diameter:2" <br /> Sampling Schad:Q 10,000 50 <br /> Z <br /> elevations in feet mean sea level Q > <br /> depths in feet below ground surface Q- N <br /> 1,000 40 <br /> rn w <br /> c <br /> Ul l6 <br /> c 100 30 E <br /> m <br /> 0 <br /> 10 20 R <br /> c <br /> 0 m <br /> U <br /> ILL <br /> 1 10 <br /> n n n n n n n n n n n n n n n n n n n <br /> 0 0 <br /> Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Jan-11 <br /> � TCE v CIS o VC -4--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 <br /> 0.5 ppb,but range from 0.5 to 500 ppb,historically. See Appendix B for specific values. <br /> Appendix C <br /> Page 52 of 75 <br />