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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-34A <br /> Well ID:M-34A <br /> Aquifer:Upper A Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Jan-11 <br /> Top Elevation:61.36 100,000 60 <br /> Bottom Elevation:-93.28 <br /> Screen Depth:79-89 <br /> Total Depth:90 <br /> Diameter:2" 10,000 50 <br /> Sampling Schad:Q m <br /> O > <br /> elevations in feet mean sea level O- <br /> depths in feet below ground surface J 1,000 <br /> 40 <br /> N <br /> rn w <br /> c <br /> N � <br /> c 100 30 <br /> m � <br /> ` o <br /> d 10 20 <br /> U <br /> C <br /> O N <br /> V 1 10 LL <br /> 0 0 <br /> Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Jan-11 <br /> -9hrTCE SCIS +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 0.5 <br /> ppb,but range from 0.5 to 500 ppb,historically. See Appendix B for specific values. <br /> Well M-34C <br /> Well ID:M-34C <br /> Aquifer: Intermediate C Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Jan-11 <br /> Top Elevation:61.36 100,000 60 <br /> Bottom Elevation:-119.37 <br /> Screen Depth: 135-145 <br /> Total Depth: 150 <br /> Diameter:2" 10,000 50 -� <br /> Sampling Schad:Q d <br /> a > <br /> elevations in feet mean sea level O- I <br /> depths in feet below ground surface J 1,000 — 40 <br /> 01 y <br /> C <br /> Ul l6 <br /> 0 100 30 £ <br /> d <br /> c <br /> 10 20 <br /> c <br /> o � <br /> v 1 10 LL <br /> 0 0 <br /> Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Jan-11 <br /> —A-TCE —CIS +vC —$--Water Elevation <br /> Appendix C <br /> Page 47 of 75 <br />