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100,000 Total and Hexavalent Chromium 100,000 Iron and Manganese 1,000 Arsenic <br /> 10,000 t Iron <br /> �� 10,000 <br /> Manganese <br /> —— WQO for Arsenic(10 Ng/L) <br /> ° --- WQO for Iron(300 Ng/L) <br /> p> ——— WQO for Manganese(50 Ng/L) <br /> 1,000 100 <br /> c <br /> 1,000 a <br /> s J <br /> i 100 ..... � ------------1-- — — <br /> *. - <br /> ---- ------ ----------------- m = �• <br /> m �• <br /> 100 <br /> o <br /> ° <br /> Lo------------ ------V 10 10 a <br /> ®_ <br /> - <br /> a � - <br /> f Total Chromium aAllv <br /> 1 Hexavalent Chromium v 10 <br /> c U <br /> — WQO for Chromium(50 pg/L) ............ <br /> U lllllllllllll� _ 6 lllgl�l <br /> e 1 ��, +, 1 <br /> kfir <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 10 000 <br /> Sulfate Total Organic Carbon Total Dissolved Solids and Electrical Conductivity <br /> ----------- =----------------- 1,000 <br /> : <br /> € € s IIIIIIIIIIIIIIL...:'; <br /> 100 E 1,000 <br /> rn100 <br /> Ea� CO) --------------- --- ----y------- <br /> 0 <br /> E � <br /> 0W <br /> r <br /> 10 <br /> 10 100 <br /> c <br /> 0 <br /> c <br /> U v 1 <br /> cn ®_ <br /> O TDS <br /> EC <br /> 1 ——— WQO for Sulfate(250 mg/L) WQO for TDS(450 mg/L) <br /> 1 +, : , : <br /> 0 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 /> 12pH soo Oxidation-Reduction Potential Notes <br /> 500 Well MW-447S was installed in July 2010 and developed in August 2010 <br /> 11 - - Non-detect values are plotted as half of the reporting limit <br /> 400 Metals samples were filtered before analysis; concentrations are on a dissolved basis <br /> 10 y _ Blue shadingrepresents periods of treatment through vertical injection borings <br /> 300 ........................_®: _ <br /> p p 9 1 9 <br /> wRed shading represents periods of treatment through the horizontal wells <br /> 200 <br /> 9 = = pg/L= micrograms per liter <br /> 100 pS/cm = microSiemens per centimeter <br /> 8 0 0 mg/L= milligrams per liter <br /> WQO=water quality objective (not established if not shown on individual graphs) <br /> 7 -100 <br /> v <br /> 6 v -200 © M W H <br /> -300 <br /> 5 FORMER MARLEY COOLING TOWER COMPANY <br /> -400 STOCKTON,CALIFORNIA <br /> 4 -500 l 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-447S <br /> GRAPH 39 <br />