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100,000 - Total and Hexavalent Chromium 100,000 Iron and Manganese 1,000 Arsenic <br /> IiBiBiBiBi <br /> t Iron <br /> 10,000 0 Total Chromium <br /> 10,000 Manganese —— WQO for Arsenic(10 Ng/L) <br /> Hexavalent Chromium <br /> --- WQO for Iron(300 Ng/L) <br /> J — WQO for Chromium(50 Ng/L) WQO for Manganese(50 ug/L) <br /> z 1,000 _ 100 - <br /> 0 1,000 <br /> s <br /> e <br /> 100 -- a <br /> z -_ <br /> r — i <br /> ——————— -------- ------------------ <br /> ——————— ———————--————— Z <br /> _L <br /> 100 a o <br /> V1p ° — -------- --- - --------- — L 10 =_ <br /> s � a <br /> 10 m a <br /> §R a <br /> 1 c o 0 <br /> o U <br /> U <br /> 11191oi �IIIII <br /> 0.1 <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 /> - <br /> --------------- 1,000 <br /> : ao <br /> - <br /> 91919191 <br /> � 100 1,000 <br /> E <br /> rn 3100 <br /> EO --------------- ----------------- <br /> R <br /> U �I <br /> .r <br /> 10LU <br /> 10 c 1p 100 - <br /> c s <br /> o E <br /> v ......®s <br /> 0 <br /> Z HUM <br /> �TDS11115 <br /> a ; <br /> ——— WQO for Sulfate(250 mg/L) EC <br /> --- WQO for TDS(450 mg/L) <br /> — <br /> p i <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 Oxidation-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 /> p Y <br /> r 0 = 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 /> — v 9 p p 9 <br /> ° 100 pg/L= micrograms per liter <br /> ca c <br /> 8 o a pS/cm = microSiemens per centimeter <br /> c r <br /> N E p mg/L= milligrams per liter <br /> -100 WQO=water quality objective (not established if not shown on individual graphs) <br /> v <br /> o -200 <br /> s U © 71'A't V L <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 SHALLOW WELL MW-301 <br /> GRAPH 26 <br />