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100,000 Total and Hexavalent Chromium 100,000 Iron and Manganese 1,000 Arsenic <br /> a�a�a�a�a�atltl '- � p n <br /> 10,000 <br /> 10,000 e --- WQO for Arsenic(10Ng/L) <br /> M MET!J <br /> z 1,000 TEE Ri100 <br /> tlltll 1,000 R4 N <br /> - ®_ ITEM <br /> o _ E ITEM <br /> J <br /> r 100 - <br /> ITEM <br /> ai - <br /> - -- — — — �• <br /> s <br /> 100 o <br /> c ._MET! <br /> V oE ITEM <br /> ---- — -----------10 10 <br /> LCLITEM <br /> L - <br /> M2222 ..22 E ITEM <br /> —0 Total Chromium f Iron v <br /> v 10 Manganese <br /> CKEN.22222222 E ITEM <br /> 1 Hexavalent Chromium U .2.222222222 <br /> --- WQO for Iron(300 Ng/L) <br /> WQO for Chromium(50 ug/L) U ——— WQO for Manganese(50 Ng/L) '. <br /> 11 r rr lil'ulwsaswsaii <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 <br /> 10,000 Total Organic Carbon 10 000 Total Dissolved Solids and Electrical Conductivity <br /> ......... g Y <br /> ------------ ------ 1,000 <br /> ,., <br /> .... <br /> 100rMKKK <br /> RE KKKOtl 1000 _ <br /> rn 100 E <br /> E <br /> Eai ------------------------------- <br /> 12 KKK <br /> 2 KKK <br /> £RE ME <br /> oo <br /> 0 XII V ..... <br /> .. 10 w <br /> c <br /> 10 c _J <br /> 100 <br /> a <br /> v2202 ffln <br /> c <br /> v 1 _ <br /> ..ga a <br /> O --4—TDS <br /> 2222 <br /> EC <br /> a <br /> ——— WQO for Sulfate(250 mg/L) <br /> 2222 <br /> --- WQO for TDS(450 mg/L) a <br /> 1 0 10 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 soo iOxidation-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 - <br /> p Y <br /> r o 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 /> ° 100 pg/L= micrograms per liter <br /> 8 op pS/cm = microSiemens per centimeter <br /> c <br /> m <br /> .• Sir Mmg/L= milligrams per liter <br /> N -100 WQO=water quality objective (not established if not shown on individual graphs) <br /> v <br /> MEW <br /> RRRR <br /> 6 o -200 <br /> -300 <br /> FORMER MARLEY COOLING TOWER COMPANY <br /> 5 <br /> -400 STOCKTON,CALIFORNIA <br /> 4 -500 - <br /> CHEMICAL CONCENTRATIONS OVER TIME IN 100- <br /> Jan. 2008 Jan. 2009 Jan. 2010 Jan. 2011 Jan. 2012 Jan. 2008 Jan. 2009 Jan. 2010 Jan. 2011 Jan. 2012 FOOT SAND WELL TW-13 <br /> GRAPH 49 <br />