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Table 2 <br />(Continued) <br />Sample Location <br />Date <br />Methane <br />Percent <br />Oxygen <br />Percent <br />Carbon Dioxide <br />Percent <br />VW -813 <br />9/29/2006 <br />0.0** <br />17.7 <br />4.0 <br />6/29/2006 0.0 10.8 <br />9.3 <br />3/10/2006 0.0 13.3 <br />8.8 <br />12/19/2005 0.0 11.1 <br />10.3 <br />12/2/2005 0.1 11.8 <br />8.8 <br />8/29/2005 0.0 12.5 <br />7.5 <br />6/9/2005 0.0 8.2 <br />11.0 <br />4/29/2005 0.0 9.0 <br />11.0 <br />3/29/2005a 0.0 NM <br />NM <br />1/20/2005 0.0 6.5 <br />12.4 <br />12/20/2004a 0.0 6.3 <br />12.1 <br />10/18/2004 0.0 19.3 <br />1.2 <br />VW -9 <br />9/29/2006 <br />0.0** <br />18.4 <br />3.3 <br />6/29/2006 0.0 14.7 <br />5.1 <br />3/10/2006 0.0 13.3 <br />3.5 <br />12/19/2005 0.0 20.4 <br />2.7 <br />12/2/2005 0.0 16.8 <br />5.5 <br />8/29/2005 0.0 17.9 <br />3.8 <br />6/9/2005 0.0 15.0 <br />4.1 <br />VW -10 <br />9/29/2006 <br />0.0** <br />17.9 <br />3.1 <br />6/29/2006 0.0 15.8 <br />3.4 <br />3/10/2006 0.0 15.5 <br />3.0 <br />12/19/2005 0.0 17.7 <br />3.5 <br />12/2/2005 0.0 16.4 <br />4.0 <br />8/29/2005 0.0 16.6 <br />3.4 <br />6/9/2005 0.0 13.8 <br />2.7 <br />EW -1 <br />9/29/2006 <br />11.7** <br />4.7 <br />18.9 <br />6/29/2006 23.1 0.0 <br />25.1 <br />3/10/2006 14.8 1.4 <br />21.1 <br />12/19/2005 5.7 0.0 <br />21.1 <br />12/2/2005 17.0 0.0 <br />26.1 <br />8/29/2005 19.2 2.4 <br />25.6 <br />6/9/2005 27.6 0.0 <br />25.3 <br />EW -2 <br />9/29/2006 <br />8.9** <br />10.1 <br />14.8 <br />6/29/2006 5.5 13.6 <br />9.5 <br />3/10/2006 18.5 1.4 <br />27.4 <br />12/19/2005 6.4 0.0 <br />18.9 <br />12/2/2005 16.5 0.0 <br />31.2 <br />8/29/2005 13.2 2.3 <br />25.9 <br />6/9/2005 20.1 0.0 <br />29.9 <br />VP -1 <br />9/29/2006 <br />8.2** <br />4.7 <br />17.5 <br />VP -2 <br />9/29/2006 <br />10.2** <br />4.6 <br />20.0 <br />VP -3 <br />9/29/2006 <br />10.6** <br />4.5 <br />202 <br />VP -4 <br />9/29/2006 <br />8.1 ** <br />4.6 <br />17.2 <br />a Collected by San Joaquin County Environmental Health Department staff. <br />NM = not measured <br />"The methane concentration was adjusted to be 0.5% less since instrument background concentration was <br />0.5%. <br />K:\Wprocess\25532\WoridEnterprise\Quarterly Rpt\3Q06\CovLtrRpt.doc 4 of 4 <br />