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100,000Total and Hexavalent Chromium 100,000 Iron and Manganese 1,000 Arsenic <br /> 10,000 t Iron <br /> 10,000 Manganese E <br /> wQofor Arsenic(10 pg/L) <br /> .......................J <br /> WQO for Iron(300 Ng/L) <br /> z 1,000 <br /> ——— WQO for Manganese(50 Ng/L) 10040000000000000 <br /> c1,000 ....am <br /> O mg <br /> - Jit ^^ ` <br /> 100 ------------- ---� --- ---- <br /> L <br /> r a 1 E <br /> ——————————————— -————————————————— Z a \/ ®_ <br /> e -_ <br /> 100 s o <br /> C e <br /> V10 ° #-------------=_---- — -- ---- L 10 <br /> i/ <br /> f Total Chromium s v <br /> 1 Hexavalent Chromium 10 p <br /> O s <br /> — WQO for Chromium(50 ug/L) O <br /> U <br /> n: a.....:.. ,: 11:3...... <br /> s <br /> 0.1 .s. 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 /> Y <br /> ----------------- 1,000 <br /> J 100 1000 _...... _ <br /> a� J 100 <br /> E ' <br /> ^�a IINI �i U ———————————————— -------- —zo <br /> 10 w 1 <br /> c <br /> 10 as 100 <br /> 0 <br /> coi E <br /> U c <br /> c <br /> o •- <br /> U 1 <br /> O — TDS <br /> EC <br /> ——— WQO for Sulfate(250 mg/L) --- WQO for TDS(450 mg/L) <br /> 10 <br /> ......... <br /> 0 <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 /> 12 PH soo Oxidation-Reduction Potential Notes <br /> 500 _ Well EW-3 was added to the sampling program in December 2010 <br /> 11 - Non-detect values are plotted as half of the reporting limit <br /> 400 <br /> 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 /L- micrograms per liter <br /> — <br /> pg/L 9 <br /> ° 100 - pS/cm = microSiemens per centimeter <br /> a <br /> 8 0 0 mg/L= milligrams per liter <br /> WQO=water quality objective (not established if not shown on individual graphs) <br /> r <br /> 7 <br /> -100 = :: <br /> 7 <br /> v <br /> 6 v -200 © M W H <br /> -300 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 EW-3 <br /> GRAPH 44 <br />