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100,000Total and Hexavalent Chromium 100,000 Iron and Manganese 1,000 Arsenic <br /> 10,000t Total Chromium f Iron <br /> 10,000 Manganese - - WQO for Arsenic(10Ng/L) <br /> 0 Hexavalent Chromium <br /> — — — WQO for Chromium(50 Ng/L) - - WQO for Iron(300 pg/L) <br /> Z 1,000 - - - WQO for Manganese(50 Ng/L) 100 <br /> c 1,000 <br /> 100 J - - - - - - - - - - <br /> 100 c <br /> v cc ' - - - - - - - - - - - - -10 �c�• <br /> 10 <br /> 10 <br /> _ <br /> 0 <br /> 1 o U <br /> U <br /> 0.11 1 <br /> Jan.2008 Jan.2009 Jan.2010 Jan.2011 Jan.2012 Jan.2008 Jan. 2009 Jan.2010 Jan.2011 Jan.2012 Jan.2008 Jan.2009 Jan.2010 Jan.2011 Jan.2012 <br /> 1,000 Sulfate 10,000.00 Total Organic Carbon 10,000 Total Dissolved Solids and Electrical Conductivity <br /> - - - - - - - - - - - - - - - - - - - - - - - - - - - 1,000.00 <br /> i' <br /> J 100 100.00 1,000 <br /> tM J V <br /> E - <br /> 1 <br /> r10.00 <br /> '_ c <br /> O — <br /> 0 U <br /> l� W <br /> R <br /> 10 c 1.00 100 <br /> 0v E <br /> U 0 <br /> U17 <br /> 0.10 CO) 0 TDS <br /> - ~ 0 EC <br /> - <br /> WQO for Sulfate(250 mg/L) <br /> - WQO for TDS(450 mg/L) <br /> 1 T - 41 0.01 10 <br /> Jan.2008 Jan.2009 Jan.2010 Jan.2011 Jan.2012 Jan.2008 Jan.2009 Jan.2010 Jan.2011 Jan.2012 Jan.2008 Jan.2009 Jan.2010 Jan.2011 Jan.2012 <br /> 12 PH 600 - Oxidation-Reduction Potential Notes <br /> 500 The first sample point on the graphs represents baseline conditions before remedial <br /> 11 activities affected groundwater in the vicinity of the well <br /> 400 Non-detect values are plotted as half of the reporting limit <br /> 104 300 Metals samples were filtered before analysis; concentrations are on a dissolved basis <br /> w 0 Blue shading represents periods of treatment through vertical injection borings <br /> g = 200 Red shading represents periods of treatment through the horizontal wells <br /> 100 pg/L= micrograms per liter <br /> 8 0 0 pS/cm = microSiemens per centimeter <br /> mg/L= milligrams per liter <br /> 7 d -100 WQO=water quality objective (not established if not shown on individual graphs) <br /> s U -200 /ft M W H <br /> -300 <br /> 5 FORMER MARLEY COOLING TOWER COMPANY <br /> -400 STOCKTON,CALIFORNIA <br /> 4 -500 CHEMICAL CONCENTRATIONS OVER TIME IN <br /> Jan.2008 Jan.2009 Jan.2010 Jan.2011 Jan. 2012 Jan.2008 Jan.2009 Jan.2010 Jan.2011 Jan.2012 INTERMEDIATE WELL 1-11 <br /> GRAPH 47 <br />