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100,000 100,000 1,000 <br /> Total and Hexavalent Chromium Iron and Manganese a Arsenic <br /> 10,000 f Iron <br /> 10,000 <br /> —— WQO for Arsenic(10 Ng/L) <br /> ——— Manganese <br /> WQO for Iron(300 Ng/L) <br /> 01 211. <br /> 1 OOO WQO for Manganese(50 Ng/L) 100 <br /> c 1,000 <br /> O <br /> t4L 100 ——————————————————————————————� J <br /> rn <br /> .. <br /> cs-. -- -------�ma ——. .. ------- ———— <br /> a� �. <br /> c <br /> 0 10 _ 100 — ---------------------------- -- 10 ---- <br /> 0 <br /> L.. <br /> --Total Chromium c N = <br /> 1 — Hexavalent Chromium 1 O p <br /> d <br /> ——— WQO for Chromium(50 ug/L) O U <br /> U <br /> v <br /> 0.1 _... 1 1 — <br /> Jan. 2008 Jan.2009 Jan. 2010 Jan.2011 Jan. 2012 Jan.2013 Jan. 2008 Jan. 2009 Jan.2010 Jan.2011 Jan. 2012 Jan. 2013 Jan. 2008 Jan. 2009 Jan.2010 Jan. 2011 Jan.2012 Jan. 2013 <br /> 1,000 Sulfate 10,000 Total Organic Carbon] 10,000 Total Dissolved Solids and Electrical Conductivity <br /> ——————— --- ———————— -- 1,000 <br /> J 100 e 1,000 <br /> rn s 2 100 <br /> ------------------------------ <br /> c a c <br /> o <br /> c <br /> R o <br /> 10 ®_ v <br /> W <br /> i+ <br /> n 10 c 100 <br /> _ r J <br /> a a <br /> o ;€ E <br /> �INIIhNwNpl. c <br /> m <br /> V 1 <br /> = o p ---0—TDS <br /> EC <br /> ——— WQO for Sulfate(250 mg/L) — ; ; <br /> = ——— WI .QO for TDS(450 mg/L) I3 <br /> ...................... <br /> . . <br /> . . . . . . <br /> . . 1 . . . . . . . <br /> 18 <br /> 1 _ . . . . . . <br /> s 0 <br /> . . . . . . . . . . . .. . .. 10 . . . . . <br /> Jan. 2008 Jan.2009 Jan.2010 Jan.2011 Jan. 2012 Jan.2013 Jan. 2008 Jan.2009 Jan. 2010 Jan. 2011 Jan. 2012 Jan.2013 Jan.2008 Jan.2009 Jan. 2010 Jan.2011 Jan.2012 Jan.2013 <br /> 12 PH 600 Oxidation-Reduction Potential Notes <br /> ..... <br /> Well MW-449D was installed in June 2012 and developed in July 2012 <br /> 500 <br /> 11 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 r 300 Blue shading represents periods of treatment through vertical injection borings <br /> c Red shading represents periods of treatment through the horizontal wells <br /> c g 200 <br /> pg/L= micrograms per liter <br /> -- 100 pS/cm = microSiemens per centimeter <br /> 8 0 0 mg/L= milligrams per liter <br /> c •— <br /> �a *' <br /> N WQO=water quality objective (not established if not shown on individual graphs) <br /> 7 c -100 <br /> m <br /> c -200 <br /> 6 <br /> ° © MWH <br /> �oriori 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. 2013 Jan. 2008 Jan.2009 Jan.2010 Jan.2011 Jan.2012 Jan.2013 <br /> INTERMEDIATE WELL MW-449D <br /> GRAPH 44 <br />