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100,000 Total and Hexavalent Chromium 100,000 Iron and Manganese 1,000 Arsenic <br /> 10,000 Total Chromium ——— WQO for Arsenic(10 Ng/L) <br /> 10,000 a <br /> Hexavalent Chromium - <br /> J --- WQO for Chromium(50Ng/L) s <br /> z 1,000 s 100 <br /> a s <br /> 0 1,000 s =_ <br /> R _ J <br /> LJ -- -------- <br /> 100 � � ------- a� _ - <br /> --- --- -------- ----------------- °1 s �' <br /> m s <br /> 100 = o <br /> -----------V —10 10 ®_ <br /> Ink 4ftL i+ <br /> C f Iron d <br /> m v = <br /> 10 Manganese <br /> r o <br /> 1 <br /> o m --- WQO for Iron(300 Ng/L) U <br /> = U <br /> ——— WQO for Manganese(50 Ng/L) Ilii <br /> s <br /> i <br /> 0.1 — 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 /> ---------- ----------------- 1000 <br /> IiR01Rl01Rl01Rl01Rl01R10 <br /> I�INI�INI� <br /> J 100 E 1,000 - - <br /> a� <br /> all 00 <br /> ai ------ ———————————————— <br /> ti <br /> r <br /> .2W <br /> ...... <br /> 10 c 100 <br /> c d <br /> o <br /> c <br /> U <br /> V 1 <br /> ®� <br /> N1111 N. <br /> cn - <br /> Hmm0 TDS <br /> —0---EC <br /> 1 ——— WQO for Sulfate(250 mg/L) WQO for TDS(450 mg/L) <br /> 0 <br /> 10 ga <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 rOxidation-Reduction Potential Notes <br /> 500 The first sample point on the graphs represents baseline conditions before remedial <br /> 11 - 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 /> 300 v <br /> p Y <br /> r o Blue shading represents periods of treatment through vertical injection borings <br /> c g _ 200 Red shading represents periods of treatment through the horizontal wells <br /> � li <br /> 100 a pg/L= micrograms per liter <br /> 8 <br /> c <br /> o a pS/cm = microSiemens per centimeter <br /> r <br /> N E 0 _ mg/L= milligrams per liter <br /> -100 v WQO=water quality objective (not established if not shown on individual graphs) <br /> v <br /> o -200 <br /> s U © 71'A'tV"1--I <br /> -300 <br /> 5 FORMER MARLEY COOLING TOWER COMPANY <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-1 <br /> GRAPH 43 <br />