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100,000 100,000 1,000 <br /> Total and Hexavalent Chromium Iron and Manganese Arsenic <br /> IBrllli <br /> 10,000 t Iron <br /> ^�^ 10,000 Manganese <br /> —— WQO for Arsenic(10 Ng/L) <br /> --- WQO for Iron(300 Ng/L) <br /> J .......:...: <br /> p> ——— WQO for Manganese(50 Ng/L) <br /> 1,000 a 100 <br /> c 1,000 <br /> :+ a J <br /> i 100 .... _J ---------------- ;rw_�.. z <br /> m s <br /> �. <br /> 100 _ s o <br /> V10 ° —� -------------=---- — — L 10 ®_ <br /> E L a ! ®_ <br /> ® e <br /> f Total Chromium — <br /> 1 Hexavalent Chromium v 10 <br /> C — O _ <br /> — WQO for Chromium(50 ug/L) U U <br /> 0.1e. <br /> .. e. 1 <br /> 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 Total Organic Carbon 10,000 Total Dissolved Solids and Electrical Conductivity <br /> ------------- ------ 1,000 <br /> J 100E 1,000 <br /> rn :100 <br /> Eai -------------------- <br /> E <br /> o <br /> 10 <br /> LU <br /> v 10 100 <br /> c <br /> o v E <br /> U <br /> O c <br /> O TDS <br /> EC 9 <br /> ——— WQO for Sulfate(250 mg/L) --- WQO for TDS(450 mg/L) _ <br /> 1 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-447D 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 shading represents periods of treatment through vertical injection borings <br /> SR _ <br /> wRed shading represents periods of treatment through the horizontal wells <br /> c g — 200 <br /> E pg/L= micrograms per liter <br /> 100 _® pS/cm = microSiemens per centimeter <br /> 8 i t. o mg/L= milligrams per liter <br /> c = <br /> 0 _ <br /> WQO=water quality objective (not established if not shown on individual graphs) <br /> a <br /> 7 -100a <br /> 6 v v _ <br /> -200 © M W H <br /> -300 <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-447D <br /> GRAPH 40 <br />