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100,000 100,000 1,000 <br /> Total and Hexavalent Chromium Iron and Manganese Arsenic <br /> f Iron <br /> 10,000 10,000 Manganese WQO for Arsenic(10 Ng/L) <br /> f Total Chromium WQO for Iron(300 Ng/L) <br /> HERE! <br /> !llalllal <br /> ffifflEffifflEffifflffl�BAH MERE <br /> '^ Hexavalent Chromium <br /> EfflEffiffli —— WQO for Manganese(50 Ng/L) m MERE <br /> Z 1,000 ——— WQO for Chromium(50 ug/L) 100 <br /> .� 4d4d4d4d4d4d4m m — — <br /> MERE1,0000 <br /> hbhbi- <br /> C <br /> O MERE <br /> _ 4diiiiiJ — <br /> .'' <br /> hbhbi <br /> L E MERE <br /> 100 - — --- ---- z = <br /> *, am -----i---+� - <br /> ----�-- -------- ----------------- sE MERE <br /> --- -- _ <br /> MERE <br /> 100 o ! <br /> V10 ° 4 - -------- --- ------- -- L 10 = <br /> L - <br /> 2 HERE <br /> hbhbi <br /> 10HUMMMhEbRhEbi <br /> — <br /> 1EME�mHERE! MERE <br /> O U <br /> U <br /> 0.1 1 1 I�Ipllsasasai <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 /> 100 - 1 000 <br /> rn o <br /> al 00 <br /> Eai -------------- -- -- ---- <br /> c E <br /> 0. et. <br /> o U <br /> R 10 w <br /> .r <br /> 0 <br /> v 10 <br /> o c <br /> � 100 <br /> c o <br /> m <br /> o v E _ <br /> U c <br /> .o - <br /> 1 <br /> U _ <br /> i! O T <br /> WQO for Sulfate(250 mg/L) <br /> EC <br /> —— WQO for TDS(450 mg/L) <br /> — <br /> 1 01 o 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 °aE Oxidation-Reduction Potential Notes <br /> Nqa The first sample point on the graphs represents baseline conditions before remedial <br /> 11 500 activities affected groundwater in the vicinity of the well <br /> 400 Non-detect values are plotted as half of the reporting limit <br /> 10 - y Metals samples were filtered before analysis; concentrations are on a dissolved basis <br /> w o Blue shading represents periods of treatment through vertical injection borings <br /> c 9200 <br /> — Red shading represents periods of treatment through the horizontal wells <br /> ME MEE <br /> 100 = pg/L= micrograms per liter <br /> 8 0W pS/cm = microsiemens per centimeter <br /> 0 <br /> ca a <br /> E mg/L= milligrams per liter <br /> Ah <br /> U) -100 WQO=water quality objective (not established if not shown on individual graphs) <br /> 6 0 -200 <br /> U <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 SHALLOW WELL MW-101 <br /> GRAPH 8 <br />