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TABLE I <br /> LABORA'T'ORY ANALYTICAL RESULTS <br /> FORMER MARLEY COOLING TOWER SITE <br /> STOCKTON,CALIFORNIA <br /> Page 22 0£24 <br /> l <br /> Laboratoy Analyses <br /> i <br /> Screened Hexavalent <br /> Water-bearing Nitrate as N Calcium Chromium Chromium Manganese <br /> Well Zone Sample Date Event/Purpose mg/L* Sulfate mg1L) (mg1L) Arsenic µg1L g1L 1L** Iran IL) (pqk) TDS mg/L) TOC mg/L <br /> Water Quality Objective 10 250 10 50 50 300 50 450 <br /> QualitV Control Sam fes Continued j <br /> Equipment Rlnsate(Continued) 1/8/2009 1st Qtr. <i 5.4 !NA <5 <10 <10 <100 <10 708 1.5 <br /> 1/9/2009 1st Qtr. <1 <1 `NA <5 <10 <10 <100 <10 <10 <1.0 <br /> /12/2009 1st Qtr. <1 <1 NA <5 <10 <10 <100 <10 <10 <1.0 <br /> 4/7/2009 2nd Qtr. <1 <1 NA <5 <10 <10 <50 <10 20 <1.0 <br /> 4/8/2009 2nd Qtr. <1 <1 NA <5 <10 <10 <50 <10 <10 <1.0 <br /> 177/1512009 <br /> /14/2009 3rd Qtr. NA <1 NA <5 <10 <10 <10 <10 10 1 7 <br /> 3rd Qtr. NA <1 NA 8 <10 <10 1,126 5,140 13 1.6 <br /> 10/12/2009 4th Qtr. HA <1 NA <5 <10 <10 <50 <10 13 1.2 <br /> 10/15/2009 4th Qtr. NA <1 NA <5 <10 <10 <50 <10 8 1.0 <br /> 2/2/2010 1 st Qtr. NA 0.5 NA <5 <10 <10 <50 <10 14 0.2 <br /> 2/3/2010 1 St Qtr. NA 0.5 NA <5 <10 <10 <50 <10 7 0.3 <br /> 2/1/2010 1st Qtr. NA 2.4 NA <5 <to <1() <50 <10 13 0,2 <br /> 4/13/2010 2nd Qtr. NA <1 NA <5 <10 <10UJ <50 <10 22 0.4 <br /> 4/1412010 2nd Qtr. NA <1 NA <5 <10 <10 <50 <10 <10 0.2 <br /> 4!15!2010 2nd Qtr. NA <1 NA <5 <10 <10 <50 <10 <10 0.5 <br /> 7/7/2010 3rd Qtr. NA 0.45J NA <0.5 <10 <10 <50 <10 <10 0.51 k <br /> 718/2010 3rd Qtr. NA <1 NA <0.5 <10 <10 <50 <10 10 0.2J <br /> 8/16/2010 3rd Qtr. NA 4.91 NA <0.5 <10 <10 <50 NA 11 1.0 <br /> 8123/2010 3rd Qtr. NA O.651 NA <0.5 <10 <10 <50 NA 23 1.1 <br /> 10112!2010 4th Qtr. NA 0.31 NA <5 <10 <10 <50 <10 16 0.91 <br /> 10/13/2010 4th Qtr. NA 1.3 NA <5 <10 <10 <50 <10 7J 1.5 <br /> 10/14/2010 4th Qtr. NA OAJ NA <5 <10 <10 <50 <10 <10 0.21 <br /> 12/6/2010 4th Qtr. NA 0AJ NA <5 <10 <10 <50 <10 <10 OAJ <br /> 12/8/2010 4th Qtr.(2"pump) NA <1 NA <5 <10 <10 <50 <10 <10 0.31 <br /> 12/8/2010 4th Qtr.(4"Pump) NA <1 NA <5 <to <10 <50 <10 <10 0.51 <br /> 1/20/2011 1st Qtr. NA 0.31 NA <5 <10 0.21JJ <50 <10 <10 6.071 <br /> 1/21/2011 1st Qtr, NA 1AJ NA <5 <10 0.21JJ <50 <10 6.01 0.31 <br /> 1/25/2011 1st Qtr. NA 0.31 NA <5 <10 <0.2 <50 <10 <10 0.2J <br /> 4/13/2011 2nd Qtr. NA <1 NA <5 <10 <0.2 <50 <10 51 0AJ <br /> 4/14/2011 2nd Qtr, NA <1 NA <5 <10 <0.2 <50 <10 51 <1.0 <br /> 4/18/2011 2nd Qtr. NA <1 NA <5 <10 <0.2 <50 <10 <10 <1.0 <br /> 5/23/2011 Supplemental NA NA NA NA <10 <0.2 <50 <10 NA <1.0 <br /> 6/20/2011 Supplemental NA NA NA NA <10 <0.2 <50 <10 NA 0.81 <br /> 7/19/2011 3rd Qtr. NA 0.31 NA <5 <10 <10 <50 <10 <5 0.31 <br /> 7/20/2011 3rd Qtr. NA <1 NA <5 <10 <10 <50 <10 8.01 0.91 <br /> 7/21/2011 3rd Qtr.(4") NA <1 NA <5 <10 <10 <50 <10 8.01 0.3J <br /> 7/21/2011 3rd Qtr, 2") NA 0.3J NA <5 <10 <10 <50 <10 <10 0.2J <br /> 8/22/2011 Supplemental NA NA NA NA <10 <0.2 <50 <10 <10 1.0 <br /> 10/12/2011 41h Qtr. NA 0.81 NA <5 <10 <0.5 <50 <10 <10 0.11 <br /> 10/13/2011 41h Qtr. NA 1.2 NA <5 <10 <0.5 <50 <10 <10 OAJ <br /> 10/17/2011 4th Qtr. HA <1 NA <5 <10 <0.5 <50 <10 <10 0,2J <br /> 1/24/2012 1st Qtr. NA 0.31 i NA <5 <10 <0.5 <50 <10 6.01 0.81 <br /> 1/25/2012 1st Qtr, NA 0.47J NA <5 <10 <0.5 <50 <10 5.01 0.2J <br /> 1126/2012 1st Qtr. NA 0.29J NA <5 <10 <0,5 <50 <10 <10 0.3J <br /> 4/24/2012 2nd Qtr. NA <1 NA <5 <10 <0.5 <50 <10 <10 0.7J <br /> 4/25/2012 2nd Qtr. NA <1 NA <5 <10 <0,5 <50 <10 81 1,0 <br /> 4/26/2012 2nd Qtr. NA <1 NA <5 <10 <0.5 <50 <10 <10 0.91 <br /> 4/30/2012 2nd Qtr. NA <1 NA. <5 <10 <0.5 <50 <10 61 0.91 <br /> 5/2/2012 2nd Qtr. NA 1.1 NA <5 <10 <0.5 <50 <10 53 0.2J <br /> 7/18/2012 3rd Qtr NA 0.31 NA <5 <10 <0.5 <50 <10 <10 0.2J <br /> 7/19/2012 3rd Qtr NA <1 NA <5 <10 <O.5 <50 <10 6AJ 0.71 j <br /> 7/23/2012 3rd Qtr NA 0.3J NA <5 <10 <0.5 <50 <10 5.01 0.51 <br /> 7/24/2012 3rd Qtr NA 0.3J NA <5 <10 <0.5 <50 <10 5.01 0.51 <br /> 7/25/2012 3rd Qtr NA <1 NA <5 <10 <0.5 <50 <10 5.01 0.21 <br /> 10/22/2012 4th Qtr NA 5.6 NA <5 <10 <0.5 <50 <10 23.0 1.3 I <br /> 10/2312012 4th Qtr NA <1 NA <5 <10 <0.5 <50 <10 <10 0.11 <br /> 10/24/2012 4th Qtr NA <1 NA <5 <10 <0.5 <60 <10 5.01 0.41 <br /> 10/25/2012 4th Qtr NA <1 NA <5 <10 <0.5 <50 <10 <10 0.7J <br /> 10/29/2012 4th Qtr NA <1 NA <5 <10 <0.5 <50 <10 <10 0.51 <br /> 1/25/2013 1st Qtr. NA <1 NA <5 <10 <0.5 <50 <10 <10 0.41 <br /> 1/29/2013 1st Qtr. NA <1 NA <5 <10 <0.5 <50 <10 <10 0.51 <br /> 1/30/2013 1st Qtr. NA <1 NA <5 <10 0.341 <50 <10 <10 0.091 <br /> 4/10/2013 2nd Qtr, NA <1 NA <5 <10 <0.5 <50 <10 <10 0.3J <br /> 4/11/2013 2nd Qtr. NA <1 NA <5 <10 <0.5 <50 <10 <10 0.31 <br /> 4/12/2013 2nd Qtr. NA <1 NA <5 <10 <0.5 <50 <10 <10 0.31 <br /> 4/16/2013 2nd Qtr. NA <1 NA <5 <10 <0.5 <50 <10 <10 <1.0 <br /> I� <br />