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100,000 Total and Hexavalent Chromium 100,000 Iron and Manganese 1,000 Arsenic <br /> 10,000 t Iron <br /> f Total Chromium 10,000 —— WQO for Arsenic(10 Ng/L) <br /> — Manganese <br /> J — Hexavalent Chromium ——— WQO for Iron(300 Ng/L) <br /> Z 1,000 '.. � .. <br /> ——— WQO for Chromium(50 ug/L) ——— WQO for Manganese(50 Ng/L) 100 <br /> c <br /> 1,000 -_ <br /> Jm H. —�— J <br /> L 100 * ------ -- — — ------- - <br /> m <br /> �—� -- -- ---- ———————————————— s - �• <br /> 100e o <br /> °V � -----------10 L 10 <br /> ® e C <br /> a <br /> 10 of <br /> a ` U <br /> O € <br /> O <br /> U <br /> 0.1 ..._.... e 1 i 1 illy ::: <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 10,000.00 10,000 <br /> Sulfate Total Organic Carbon Total Dissolved Solids and Electrical Conductivity <br /> +^------------------------------ <br /> 1,000.00 <br /> J <br /> 100 100.001,000 <br /> E <br /> CI J ` <br /> " CO) -- — — ----- <br /> 10.00 c <br /> R {� <br /> L) <br /> 10 1.00 <br /> c <br /> E <br /> c <br /> U <br /> O _ <br /> c <br /> U <br /> 0.10ga <br /> O --4—TDS <br /> 1 ——— WQO for Sulfate(250 mg/L) --I ECWQO for TDS(450 mg/L) <br /> 0.01 10 ®� <br /> a <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 600r Notes 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 /> w 10 " y -a <br /> Metals samples were filtered before analysis;sis; concentrations are on a dissolved basis300 <br /> o <br /> Blue shading represents periods of treatment through vertical injection borings <br /> c g ____ 200 a <br /> D Red shading represents periods of treatment through the horizontal wells <br /> = a <br /> 100 - pg/L= micrograms per liter <br /> 8 o a pS/cm = microSiemens per centimeter <br /> 0 = mg/L= milligrams per liter <br /> rn �— -100 WQO=water quality objective (not established if not shown on individual graphs) <br /> 6 v -200 <br /> -300 <br /> X-11 <br /> .: <br /> FORMER MARLEY COOLING TOWER COMPANY <br /> 5 <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 MW-2 <br /> GRAPH 2 <br />