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100,000 Total and Hexavalent Chromium 100,000 Iron and Manganese 1,000 Arsenic <br /> IIIIBIBIii <br /> 10,000 : �1 t Iron <br /> ' 10,000 Manganese --- WQO <br /> for Arsenic(10pg/L) <br /> --- WQO for Iron(300 Ng/L) <br /> Z 1 000 ——— WQO for Manganese(50 Ng/L) 100 <br /> c <br /> 1,000 <br /> - <br /> :+ a J <br /> i 100 .... _J -------------'� ------ <br /> °� <br /> i----------------- ----------------- _ s �. <br /> m z s <br /> 100 s o <br /> °U 10 ------------- ------------ L 10 =_ <br /> L e <br /> f Total Chromium s v <br /> 1 10 <br /> Hexavalent Chromium s <br /> o <br /> U <br /> — WQO for Chromium(50 ug/L) = U �jlllll 111111111 <br /> i <br /> 0.1 — 1 usii....; 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 000Total Organic Carbon 110,000 Total Dissolved Solids and Electrical Conductivity <br /> ------------------------------ 1,000 <br /> iiilllllllalll....:; <br /> J <br /> 100 1,000 <br /> v: <br /> rn 3100 <br /> r31 U --——-—————————— <br /> ---�— —�� <br /> 1111111191 <br /> r = 10 w �I� <br /> c <br /> = c°d E 100 10 <br /> o _ <br /> a <br /> U <br /> o c <br /> ®� <br /> TDS <br /> EC <br /> ——— WQO for Sulfate(250 mg/L) --- WQO for TDS(450 mg/L) <br /> 0 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 /> 12pH soo Oxidation-Reduction Potential Notes <br /> Well MW-448D was installed in July 2010 and developed in August 2010 <br /> 11 500 Non-detect values are plotted as half of the reporting limit <br /> 400 Metals samples were filtered before analysis; concentrations are on a dissolved basis <br /> 10 yBlue shading represents periods of treatment through vertical injection borings <br /> wa Red shading represents periods of treatment through the horizontal wells <br /> c g _ 200 a <br /> ®_ ZT <br /> a pg/L= micrograms per liter <br /> �- 100 _® pS/cm = microSiemens per centimeter <br /> 8 TIE 00 a mg/L= milligrams per liter <br /> Ah <br /> ca <br /> WQO=water quality objective (not established if not shown on individual graphs) <br /> 7 __ -100 <br /> v <br /> o -200 © M W H <br /> 6 U <br /> -300 <br /> 5 FORMER MARLEY COOLING TOWER COMPANY <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-448D <br /> GRAPH 42 <br />