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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-07B <br /> Well ID:M-07B <br /> Aquifer:UpperA/B Jan-87 Jan-90 Jan-93 Jan-96 Jan-99 Jan-02 Jan-05 Jan-08 Jan-11 <br /> Top Elevation:68.45 100,000 60 <br /> Bottom Elevation:27.45 <br /> Screen Depth:20-40 <br /> Total Depth:41 <br /> Diameter:4" 10,000 50 <br /> Sampling Schad:B <br /> elevations in feet mean sea level Q <br /> depths in feet below ground surfacea 1,000 40 d <br /> J <br /> d <br /> Z � <br /> c 100 30 £ <br /> 0 <br /> m <br /> is 0 <br /> 0 <br /> m <br /> 10 20 m <br /> U <br /> C y <br /> U ti <br /> 1 ° 0 10 <br /> ° <br /> o 000Q Q Q Q Q Q Q Q 0 0 <br /> Jan-87 Jan-90 Jan-93 Jan-96 Jan-99 Jan-02 Jan-05 Jan-08 Jan-11 <br /> -Ar-TCE SCIS tvc tWater 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,but <br /> range from 0.5 to 500 ppb, historically. See Appendix B for specific values. <br /> Well ID:M-07A Well M-07A <br /> Aquifer:UpperA/B <br /> Top Elevation:68.49 <br /> Bottom Elevation:-49.51 Jan-87 Jan-90 Jan-93 Jan-96 Jan-99 Jan-02 Jan-05 Jan-08 Jan-11 <br /> Screen Depth:94-114 100,000 60 <br /> Total Depth:118 <br /> Diameter:4" <br /> Sampling Schad:A <br /> elevations in feet mean sea level 10,000 50 <br /> depths in feet below ground surface <br /> a m <br /> Q 1,000 40 <br /> J <br /> d <br /> Z � <br /> c 100 30 £ <br /> 0 <br /> m <br /> is > <br /> _ o <br /> y 10 �g 0 0 20 R <br /> U p <br /> C y <br /> U ° 3 ii <br /> 1 °° ° 0 10 <br /> o Q Q=oOO 000co 0 0 0 0 o Q Q Q Q <br /> 0 1 1 1 0 <br /> Jan-87 Jan-90 Jan-93 Jan-96 Jan-99 Jan-02 Jan-05 Jan-08 Jan-11 <br /> -Ar-TCE SCIS tvC -$-Water Elevation <br /> Appendix C <br /> Page 10 of 75 <br />