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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 ID:M-06B Well M-06B <br /> Aquifer:UpperA/B <br /> Top Elevation:68.36 Jan-87 Jan-90 Jan-93 Jan-96 Jan-99 Jan-02 Jan-05 Jan-08 Jan-11 <br /> Bottom Elevation:24.36 100,000 60 <br /> Screen Depth:23-43 <br /> Total Depth:44 <br /> Diameter:4" <br /> Sampling Sched:SA 10,000 50 <br /> elevations in feet mean sea level <br /> depths in feet below ground surface CL ° ° ° ° N <br /> CL <br /> 1,000 °° 40 <br /> ° <br /> c 100 ° ° °° ° ° 30 E <br /> m <br /> L ° ° O <br /> 10 20 <br /> O O O CO O O °° ° °o ° ° o li <br /> U <br /> 1 0 (D O 0 0 10 <br /> O O ° o <br /> O 00 O O 00 O o o O o 0 O 00 <br /> 0 0 <br /> Jan-87 Jan-90 Jan-93 Jan-96 Jan-99 Jan-02 Jan-05 Jan-08 Jan-11 <br /> TCE o CIS o 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 M-06A <br /> Well ID:M-06A Jan-87 Jan-90 Jan-93 Jan-96 Jan-99 Jan-02 Jan-05 Jan-08 Jan-11 <br /> Aquifer:UpperA/B 100,000 60 <br /> Top Elevation:68.22 <br /> Bottom Elevation:-46.78 <br /> Screen Depth:90-110 <br /> Total Depth: 115 10,000 50 <br /> Diameter:4" Q <br /> Sampling Schad:SA a <br /> m <br /> elevations in feet mean sea level J 1,000 40 m <br /> depths in feet below ground surface <br /> ° C <br /> O <br /> p° A <br /> ° ° °° ° ° D <br /> 100 0 °°O o o °c ° ° ° ° AA ° °° 30 > <br /> A °° ° o o ° o 0 <br /> v 10 ° ° o ° ° ° o ° 20 <br /> C ° o O E o y <br /> O y <br /> U O O O ° LL <br /> 1 ° g o 0 0 0 0 00 10 <br /> O cc coo 0 o O c0 0 0 0 0 o O O o <br /> 0 1 1 0 <br /> Jan-87 Jan-90 Jan-93 Jan-96 Jan-99 Jan-02 Jan-05 Jan-08 Jan-11 <br /> o TCE o CIS o VC Water Elevation <br /> Appendix C <br /> Page 7 of 75 <br />