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TABLE 5
<br /> LABORATORY ANALYTICAL RESULTS
<br /> 2012 ANNUAL GROUNDWATER MONITORING REPORT
<br /> FORMER MARLEY COOLING TOWER SITE
<br /> STOCKTON,CALIFORNIA
<br /> Page 7 of 22
<br /> Laboratory Analyses
<br /> Screened Hexavalent
<br /> Water-bearing Nitrate as N Calcium Chromium Chromium Manganese
<br /> Well Zone Sample Date Event/Purpose m /L* Sulfate (mg/L (mg/L Arsenic N /L) (pg/L) N /L** Iron(gg/L) (Ng/L) TDS(mg/L) TOC(mg/L
<br /> Water Quality Objective 10 250 10 50 50 300 50 450
<br /> In'ection Area Wells Continued
<br /> TW-14 Shallow 3/19/2008 Baseline/2nd Qtr 9.1 105 NA <5 16 10 370J 30 824 1.3
<br /> 7/10/2008 3rd Qtr. <1 29.4 NA 81 27 <10 2,030 670 1,160 1,400
<br /> 10/22/2008 4th Qtr. <1 87.5 NA 22 12 <10 <100 250 9111 <100
<br /> 1/9/2009 1st Qtr. <1 120 NA <5 86 <10 <100 1,000 1,100 4.0
<br /> 4/8/2009 2nd Qtr. 1.0 156 NA 25 <10 <10 612 1,370 728 1.6 J
<br /> 7/14/2009 3rd Qtr. NA 160 NA 7 <10 <10 808 3,260 101 2.3
<br /> 10/12/2009 4th Qtr. NA 109 NA 18 10 <10 730 3,970 815 3.0
<br /> 2/2/2010 1st Qtr. NA 189 NA 1 25 <10 1,490 6,610 1,070 1.2
<br /> 4/14/2010 2nd Qtr. NA 391 NA <5 37 <10 1,510 8,110 1,290 1.5
<br /> 7/8/2010 3rd Qtr. NA 287 NA 6 15 <10 1,320 6,920 1,030 1.5
<br /> 10/13/2010 4th Qtr. NA 243 NA 5 11 <10 967 5,400 938 1.2
<br /> 1/21/2011 1st Qtr. NA 346 NA 8 11 <0.2 2,850 5,670 1,220 1.01
<br /> 4/14/2011 2nd Qtr. NA 338 NA 9 14 <0.2 750 7,020 1,190 0.91
<br /> 7/20/2011 3rd Qtr. NA 327 NA 14 91 <10 1,980 8,020 1,200 5.5
<br /> 10/13/2011 4th Qtr. NA 279 NA 6 <10 <0.5 544 5,360 1,140 2.1
<br /> 7/18/2012 3rd Qtr NA 388 NA 30 6J <0.5 664 3,020 1,270 1.4
<br /> 10/23/2012 4th Qtr NA 261 NA 1J 3J <0.5 1,020 3,010 973 2.2
<br /> 10/23/2012 4th Qtr(Dup) NA 262 NA 1J <10 <0.5 971 3,110 973 0.8J
<br /> TW-17 Shallow 4/1/2008 Baseline/2nd Qtr 3.7 51.4 NA 5 15 <10 247 <10 539 <1.0
<br /> 7/10/2008 3rd Qtr. <1 154 NA <5 46 <10 5,200 <10 2,060 1,800
<br /> 10/22/2008 4th Qtr. <1 104 NA <5 83 <10 <100 <10 1,9901 2,800
<br /> 1/9/2009 1st Qtr. <1 78.1 NA 8 204 <10 <100 <10 2,230 5,900
<br /> 4/8/2009 2nd Qtr. 3.0 76.2 NA 166 27 <10 1,650 20 1,150 630
<br /> 7/15/2009 3rd Qtr. NA 38.7 NA 216 16 20 2,280 50 1,260 52
<br /> 10/14/2009 4th Qtr. NA 6.8 NA 257 7 <10 2,200 560 1,890 540
<br /> 2/2/2010 1st Qtr. NA 19.1 NA 64 <10 <10 1,380 220 783 75
<br /> 4/14/2010 2nd Qtr. NA 144 NA 51 <10 <10 637 170 807 130
<br /> 7/8/2010 3rd Qtr. NA 131 NA 382 25 <10 2,240 130 1,290 760
<br /> 10/13/2010 4th Qtr. NA 243 NA 39 16 <10 745J 220 1,340 93
<br /> 10/13/2010 4th Qtr.(Dup) NA 230 NA 39 18 <10 758J 300 1,480 120
<br /> 1/21/2011 1st Qtr. NA 243 NA 23 91 0.2UJ 1,100 350 1,070 <1.0
<br /> 1/21/2011 1st Qtr.(Dup) NA 248 NA 24 81 <0.2 1,140 290 997 <1.0
<br /> 4/14/2011 2nd Qtr. NA 625 NA 16 12 <0.2 588 1,080 1,600 5.3
<br /> 7/21/2011 3rd Qtr. NA 823 NA 5 3J <10 1,930 1,030 1,730 2.0
<br /> 10/13/2011 4th Qtr. NA 835 NA 6 <10 <0.5 1,220 1,520 1,740 1.8
<br /> 1/24/2012 1st Qtr. NA 1240 NA 10 <10 <0.5 1,360 2,680 2,250 0.81
<br /> 4/25/2012 2nd Qtr. NA 1470 NA 10 <10 <0.5 1,170 4,990 2,540 2.0
<br /> 7/23/2012 3rd Qtr NA 1600 NA 7 3J <0.5 1,090 5,400 2,750 1.2
<br /> 10/23/2012 4th Qtr NA 256 NA 38 3J <0.5 507 810 835 2.6
<br /> Shallow/ 4/1/2008 Dudek Qtrly.Event NA NA NA NA 166 NA NA NA NA NA
<br /> EW-1 5/16/2008 Supplemental NA 275 NA 27 NA <0.5 NA <10 NA NA
<br /> Intermediate 7/10/2008 3rd Qtr. 1.5 38.0 NA 13 <10UJ <10 1,1001 6,100 777 240
<br /> 10/21/2008 4th Qtr. <1 10.9 NA <5 12 <10 122 4,500 660 18
<br /> 1/8/2009 1st Qtr. <1 34.2 NA <5 37 <10 225 3,360 688 1.6
<br /> 4/7/2009 2nd Qtr. <1 78.5 NA <5 <10 <10 783 3,720 764 2.7 J
<br /> 7/14/2009 3rd Qtr. NA 25.4 NA <5 <10 <10 458 500 610 1.6
<br /> 10/12/2009 4th Qtr. NA 75.7 NA 1 16 <10 608 2,320 723 1.8
<br /> 2/1/2010 1st Qtr. NA 61.6 NA 1 29 <10 667 2,460 758 1.11
<br /> 4/13/2010 2nd Qtr. NA 96.2 NA 1 24 <10 394 4,380 696 <1
<br /> 7/7/2010 3rd Qtr. NA 81.9 NA 2J 11 <10 534 1,670 646 0.7J
<br /> 10/13/2010 4th Qtr. NA 90.4 NA 2J 14 <10 742 5,510 680 1.3
<br /> 1/21/2011 1st Qtr. NA 81.0 NA 8 11 <0.2 495 4,800 768 <1.0
<br /> 4/13/2011 2nd Qtr. NA 93.8 NA 6 6J <0.2 1,320 5,270 702 0.91
<br /> 7/20/2011 3rd Qtr. NA 69.9 NA 2J 4J <10 505 1,170 629 1.01
<br /> 10/12/2011 4th Qtr. NA 81.7 NA 6 <10 <0.5 523 3,810 724 0.7J
<br /> 1/24/2012 1 st Qtr. NA 80.3 NA 5 3J <0.5 355 3,620 684 1.4
<br /> 4/24/2012 2nd Qtr. NA 76.7 NA 6 <10 <0.5 315 3,840 697 1.3
<br /> 7/18/2012 3rd Qtr NA 69.8 NA 3J <10 <0.5 315 1,790 687 0.91
<br /> 10/22/2012 4th Qtr NA 89.0 NA 8 <10 <0.5 1,500 3,100 669 1.6
<br /> 10/22/2012 4th Qtr(Dup) NA 79.1 NA 8 <10 <0.5 389 3,050 676 1.7
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