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HUNIN <br /> 100,000 Total and Hexavalent Chromium 100,000 Iron and Manganese 1,000 Arsenic <br /> 10,000 t Iron <br /> �Total Chromium 1 p ppp —— WQO for Arsenic(10 Ng/L) <br /> Manganese <br /> NOR ioo o !!I!I!I!I <br /> Hexavalent Chromium --- WQO for Iron(300 Ng/L) <br /> J --- WQO for Chromium50 <br /> Z 1 000 ( Ng/L) WQO for Manganese(50 Ng/L) 100MUNN <br /> NORN <br /> c 1,000 NORN <br /> �® 1 <br /> oNORN <br /> .+ NEMNEMNEMN k J = <br /> 100 _ ---- �— ------------ _ <br /> 4) --------------- ----------------- °1 �. <br /> m s <br /> 100 o ; <br /> V10 ° �— -------- --- ----------- L 10 _ <br /> L l,, - <br /> 10 _ <br /> 1c m :: C - <br /> o v - <br /> V .: <br /> ® 111119191 <br /> 0.1 ..._.... i i 1I 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 /> Y <br /> —————————— ----------------- 1,000 <br /> 100 <br /> 1,000 <br /> rn 100 <br /> E I ai cn <br /> 0 <br /> �, !1 0 <br /> L 10w <br /> J .....€ <br /> 10 c a� 100 <br /> c <br /> o E <br /> UPM M4, c <br /> o c <br /> v 1 <br /> O t TDS <br /> ——— ) _ °' , . <br /> f EC <br /> h <br /> WQO for Sulfate(250 mg/L <br /> 1 <br /> --- WQO for TDS(450 mg/L) <br /> p <br /> a <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 PH soo li Oxidation-Reduction Potential Notes <br /> 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 /> HOME <br /> 10 - y Metals samples were filtered before analysis; concentrations are on a dissolved basis <br /> 300 g-, <br /> w o Blue shading represents periods of treatment through vertical injection borings <br /> HOME <br /> c g 200 Red shading represents periods of treatment through the horizontal wells <br /> a — 9 p p 9 <br /> 100 pg/L= micrograms per liter <br /> a HOME <br /> 8 0 pS/cm = microsiemens per centimeter <br /> p <br /> mg/L= milligrams per liter <br /> I. . <br /> -100 WQO=water quality objective (not established if not shown on individual graphs) <br /> HOME <br /> 6 0 -200HOME <br /> HOME <br /> ,: ` `iLj <br /> HOME <br /> -300 <br /> FORMER MARLEY COOLING TOWER COMPANY <br /> 5HOME <br /> -400 STOCKTON,CALIFORNIA <br /> 4 500 <br /> 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-211 <br /> GRAPH 21 <br />