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100,000 Total and Hexavalent Chromium 100,000 Iron and Manganese 1,000 -- Arsenic <br /> IIBIpIBIpI <br /> 10,000 - t Iron <br /> 10,000 Manganese --- WQO for Arsenic(10pg/ <br /> L) <br /> J <br /> --— <br /> WQO for Iron(300 N9/L) <br /> 1,000 ___ WQO for Manganese(50 Ng/L) 100 <br /> z <br /> 0 1,000 ®_ <br /> r /\ s <br /> - J <br /> 100 �� _J �------------ _--- ---- ------ <br /> i+ - -_ <br /> ——————————————————————————————————— <br /> y <br /> UI 100 - O <br /> C s _ <br /> V10 ° ------------ --- - — -------- L 10 <br /> L e y <br /> we - <br /> s .........iZU <br /> -E <br /> f Total Chromium e d <br /> 10 _ <br /> 1 Hexavalent Chromium 0 <br /> O <br /> o <br /> — WQO for Chromium(50 ug/L) U �Illllpl <br /> 1 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 /> MU <br /> it <br /> J 100 <br /> 1,000 _...... _ <br /> a� a 1 oo <br /> E as in <br /> £ a ---------------- ---- —��—�I— ----- <br /> �. <br /> VIIIi <br /> 1 <br /> 1w <br /> 0 <br /> 10 <br /> 100 <br /> oEU <br /> O _ <br /> U 1 <br /> O — TDS <br /> f EC <br /> WQO for Sulfate(250 mg/L) ___ WQO for TDS(450 mg/L) <br /> 1 <br /> 0 <br /> 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 H sooOxidation-Reduction Potential Notes <br /> p <br /> Well MW-212 was added to the sampling program in December 2010 <br /> 11 - <br /> 500 <br /> 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 /> �. 300 <br /> r Red shading represents periods of treatment through the horizontal wells <br /> c g _ 200 - Ng/L= micrograms per liter <br /> >3 <br /> 100 pS/cm = microSiemens per centimeter <br /> 8 o p mg/L= milligrams per liter <br /> WQO=water quality objective (not established if not shown on individual graphs) <br /> N - <br /> u <br /> 6 v -200 © M W H <br /> -300 <br /> 5 FORMER MARLEY COOLING TOWER COMPANY <br /> -400 STOCKTON,CALIFORNIA <br /> IN <br /> 4 CHEMICAL CONCENTRATIONS OVER TIME IN <br /> 500 <br /> Jan. 2008 Jan. 2009 Jan. 2010 Jan. 2011 Jan. 2012 Jan. 2008 Jan. 2009 Jan. 2010 Jan. 2011 Jan. 2012 INTERMEDIATE WELL MW-212 <br /> GRAPH 22 <br />