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100,000 Total and Hexavalent Chromium 100,000rv' Iron and Manganese 1,000 Arsenic <br /> tIron10,000 <br /> 10,000 --- WQOforArsenic(10Ng/L) <br /> �MMMM MERE <br /> Manganese <br /> -- WQO for Iron(300 Ng/L) <br /> Wd4d —— WQO for Manganese(50 Ng/L) <br /> 1,000 100HE <br /> c 1,000MffifflfflMffifflfflmm <br /> oE MERE <br /> +' J MERE <br /> - <br /> `�° 100 _J _ MERE <br /> yJ ———————————i—— —— — <br /> ----------------- ----------------- 100 0 - <br /> hbhbi <br /> MERE <br /> hbhbi <br /> v10 ° LW------------ --- — -------- L 10 = <br /> L o hbhbi <br /> f Total Chromiumv <br /> 1 Hexavalent Chromium 10 C _ bhbi <br /> O U <br /> WQO for Chromium(50 ug/L) U <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 /> RM T----------- ----------------- 1,000 <br /> NE ME <br /> 0 9191191119111..x= <br /> 100 -- E 1,000 - <br /> rn all 00 <br /> Ea� --------------- --- --- ----- <br /> E <br /> c � <br /> 0 <br /> t. <br /> R 10 W <br /> 10 c 100 <br /> c <br /> o v E _ <br /> m - <br /> o _ <br /> U c <br /> o - <br /> 1 ® _ <br /> L <br /> O �TDS <br /> WQO for Sulfate(250 mg/L) <br /> EC <br /> --- WQO for TDS(450 mg/L) <br /> 1 0 10 ga a <br /> Jan. 2008 Jan. 2009 an. 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 600 Oxidation-Reduction Potential Notes <br /> 500 Well MW-448S 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 _ 1 Blue shadingrepresents periods of treatment through vertical injection borings <br /> .r 300 <br /> p p 9 1 9 <br /> r o Red shading represents periods of treatment through the horizontal wells <br /> c 200 <br /> Q <br /> 9 = pg/L= micrograms per liter <br /> ° 100 pS/cm = microSiemens per centimeter <br /> 8 0 0 mg/L= milligrams per liter <br /> - <br /> `r° ° WQO=water quality objective (not established if not shown on individual graphs) <br /> N M e <br /> 7 __ -100 a® N l <br /> o -200 <br /> 6 U <br /> 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-448S <br /> GRAPH 41 <br />