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100,000 11 Total and Hexavalent Chromium 100,000 Iron and Manganese 1,000 Arsenic <br /> ol, <br /> 10,000 <br /> _ f Total Chromium 10,000 — — —— WQO for Arsenic(10 Ng/L) <br /> �® iilililil <br /> '^ Hexavalent Chromium _ <br /> Z 1,000 --- WQO for Chromium(50ug/L) 100 uMUM <br /> .� <br /> c * 1,000 <br /> O -_ <br /> ++ J = <br /> i100 ..... �------------db---'�""� — --------- Z = <br /> _ <br /> — ---- ----------- -- ----------- 100 _ o <br /> PMT <br /> V10 ° �------------ --- � ----------- L 10 _ <br /> ....�® ..._ Y s <br /> L = <br /> IrNEMNon d0 MOM <br /> = <br /> NEMP <br /> v 10 -Manganese c = <br /> v <br /> 1 <br /> O --- WQO for Iron(300 ug/L) O <br /> O U <br /> 3 <br /> U ——— WQO for Manganese(50 Ng/L) , <br /> i <br /> .: <br /> ®. <br /> 0.1 ..._.... 1 loillr 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 /> — — ---- ———— — 1,000 - <br /> IN <br /> 100 <br /> 1,0 <br /> 00 <br /> J <br /> rn :100 <br /> C1 ———— —————————————————————————————— <br /> C <br /> OilFi <br /> �. <br /> R w 10 w <br /> L J <br /> 10 c ltlllltlr' 100 = <br /> c = <br /> d <br /> o22"EM PM <br /> U c = <br /> O _ <br /> O TDS <br /> EC <br /> ——— WQO for Sulfate(250 mg/L) <br /> --- WQO for TDS(450 mg/L) <br /> 1 0 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 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 <br /> r Metals samples were filtered before analysis; concentrations are on a dissolved basis <br /> 300 �® <br /> w oHOMEBlue shading represents periods of treatment through vertical injection borings <br /> > HOME <br /> c g 200MEMNERNHOMMM Red shading represents periods of treatment through the horizontal wells <br /> 100 pg/L= micrograms per liter <br /> ca c <br /> 8 0 pS/cm = microSiemens per centimeter <br /> c t 0 _ <br /> ca = = <br /> E HOME <br /> mg/L= milligrams per liter <br /> rn -100 WQO=water quality objective no established if not shown on individual graphs) <br /> vHOME <br /> 6 v -200HOME <br /> © 1;,::l `;��L`j <br /> HOME <br /> -300 <br /> �:. I FORMER MARLEY COOLING TOWER COMPANY <br /> 5 ROMP <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 SHALLOW WELL MW-6 <br /> GRAPH 4 <br />