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100,000Total and Hexavalent Chromium 100,000 Iron and Manganese 1,000 Arsenic <br /> --4—Iron <br /> 10,000 10,000 f Manganese -- WQO for Arsenic(10Ng/L) <br /> --- WQO for Iron(300 N9/L) <br /> !Iahlpl <br /> TEEM KETETKETEm m ITEM <br /> HTETETET. WQO for Manganese(50 ug/L) <br /> z 1,000ITEM <br /> 100NNUNU44#44#44040 in <br /> ., e e <br /> ITEMN <br /> c 1,000 _ e ITEM <br /> oKETETKETEm _ <br /> .+ J <br /> L E ITEM <br /> 100 E ITEM <br /> - — — z <br /> *, E ITEM <br /> --- -------i---+ - <br /> ----------------- ----------------- : 100 o <br /> E ITEM <br /> oOE ITEM <br /> U 10 - �— -------- --- ----------- 10 <br /> ++ <br /> L <br /> L m �+ e <br /> ITEM <br /> KETETKETEmm <br /> t Total Chromium v 10 n o <br /> 1E IT <br /> C OHexavalent Chromium c <br /> o <br /> O ` U <br /> —— WQO for Chromium(50 Ng/L) U "" TEEM <br /> 0.1 i1 <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 /> vbibiq °" <br /> vbibR <br /> —————————— ------------------ 1,000 <br /> : <br /> a <br /> 100 -- E 1,000 &Islalslals <br /> J <br /> rn :100 <br /> Eai --------- ------------------------ <br /> E <br /> wW f�lll <br /> v 10 100 <br /> c <br /> o v E <br /> U C <br /> : <br /> v 1 <br /> c <br /> O TDS <br /> ——— WQO for Sulfate(250 mg/L) EC <br /> --- WQO for TDS(450 mg/L) a <br /> 1 <br /> ......... 1p ®p <br /> Jan. 2008 Jan. 2009 an. 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 600 !� 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 /> 10 - y ! Metals samples were filtered before analysis; concentrations are on a dissolved basis <br /> 300 :o <br /> p Y <br /> w o Blue shading represents periods of treatment through vertical injection borings <br /> KKET <br /> g 200 Red shading represents periods of treatment through the horizontal wells <br /> EMT <br /> 100 pg/L= micrograms per liter <br /> 8 o p pS/cm = microSiemens per centimeter <br /> c <br /> c <br /> ca <br /> E _ mg/L= milligrams per liter <br /> 7 -100 WQO=water quality objective (not established if not shown on individual graphs) <br /> va <br /> 6 o -200 KKET <br /> KKET 70 <br /> -300 FORMER MARLEY COOLING TOWER COMPANY <br /> 5 <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-205 (S-7) <br /> GRAPH 16 <br />