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TABLE 1
<br /> LABORATORY ANALYTICAL RIC,SULTS
<br /> FORMER MARLEY COOLING TOWER SITE
<br /> STOCKTON,CALIFORNIA
<br /> Page 3 of 24
<br /> Laboratory Analyses
<br /> Screened Hexavalent
<br /> Water-bearing Nitrate as N Calcium Chromium Chromium Manganese
<br /> Well Zone Sample Date Event/Purpose (mg/Lr Sulfate(mg/L) (mg]L) Arsenic 1tgIL pg1L /L** Iron(pg/L (pg1L) TOS mg1L TOC mg1L
<br /> Water Quality Objective 10 250 - 10 50 50 300 50 450
<br /> In'ection Area Wells Continued
<br /> 511911902 Baseline 4.7 91.7 NA <5 2,500 2,300 378 20 783 1.2
<br /> MW-104(8-2) Shallow 4/1/2008 2nd Qtr. 4.2 105 NA <5 1,130 500 385 90 823 2.1
<br /> 512012008 Supplemental 1.2 47.4 111 9 <10 <10 1,010 1,930 6773 14
<br /> 7111/2008 3rd Qtr. 0.61 54.0 NA 22 <10 <10 3,260 11,890 818 39
<br /> 10/21/2008 4th Qtr. <1 104 NA 32 18 <10 5,650 2,200 802 10
<br /> 1!912009 1st Qtr. <1 104 NA 37 64 <10 5,640 1,940 822 <1.0
<br /> 4/8/2009 2nd Qtr. <1 70.4 NA 33 15 <10 4,150 1,520 753 2.4 J
<br /> 7/15/2009 3rd Qtr. NA 61.3 NA 26 <10 <10 1,020 1,710 763 2.1
<br /> 1011212009 41h Qtr. NA 94.4 NA 37 18 <10 4,940 1,960 821 2.0
<br /> 2!2!2010 1st Qtr. NA 98.2 NA 18 20 <10 2,740 1,990 803 1.3
<br /> 4/14/2010 2nd Qtr. NA 87.3 NA 6 5 <10 1,300 3,010 784 1.2
<br /> 7/8/2010 3rd Qtr. NA 75.5 NA 15 26 10 2,870 2,860 817 1.5
<br /> 7/8/2010 3rd Qtr.(Dup) NA 75.7 NA 15 23 <10 3,540 3,320 905 1.5
<br /> 10/13/2010 4th Qtr. NA 181 NA 9 77 <10 1,060 3,000 1,400 740
<br /> 1/25/2011 1st Qtr. NA 7.7J NA 4J 68 <0.2 2,150 190 3,530 1,600
<br /> 4/14/2011 2nd Qtr. NA 42.2 NA 4J 46 <0.2 1,430 470 2,140 840
<br /> 812212011 Supplemental NA 323 _14A-1 5 51 <0.2 615 1,590 1,900 160
<br /> 10/13/2011 4th Qtr. NA 282 NA 11 <10 <0.5 707 1,330 1,330 59.6
<br /> 1/24/2012 1st Qtr. NA 621 NA 31 51 <0.5 1,840 2,260 1,500 34
<br /> 4/24/2012 2nd Qtr. NA 775 NA 2J <10 <0.5 3,660 2,630 1,790 8.6
<br /> 7/23/2012 3rd Qtr NA 882 NA 2J 7J <0.5 2,580 1,280 1,920 2.1
<br /> 7/23/2012 3rd Qtr(Dup) NA 873 NA 2J 5J <0.5 2,460 1,280 1,900 2.4
<br /> 1012312012 4th Qtr. NA 472 NA 2J 4J <0.5 9,060 1,940 1,450 3.6
<br /> 1125/2013 1st Qtr. NA NA
<br /> i
<br /> MW-105 Shallow 1/10/2008 Baseline(Dup) 0.3 2.5 NA <5 218 200 <50 <10 59 2.81
<br /> 111 012 0 08 Basellne(Dup) 0.3 2.5 NA <5 207 200 <50 <10 , 37 3.5
<br /> 4/2/2006 2nd Qtr. 4.9 20.6 NA <5 795 2003 117 330 252 4.9
<br /> 4/2/2008 2nd Qtr.(Dup) 4.9 20.8 NA <5 815 700 117 360 250 5.2
<br /> 7111/2008 3rd Qtr. 7.9 36.5 NA <5 70 70 406 270 395 2.6
<br /> 10/22/2008 4th Qtr. 0.8 37.3 NA <5 <10 <10 <100 390 424J 2.OJ
<br /> 1/8/2009 1st Qtr. <1 49.8 NA <5 23 <10 172 260 355 14
<br /> 417/2009 2nd Qtr. <1 12.8 NA <5 <10 <10 236 130 164 2.5 J
<br /> 7/14/2009 3rd Qtr, NA 16.2 NA <5 <10 <10 112 110 155 3.4
<br /> 10/12/2009 4th Qtr. NA 137 NA 2 18 <10 1,260 220 689 16.0
<br /> 2/1/2010 1st Qtr. NA 109 NA <5 18 <10 460 220 491 1.13
<br /> 4/1312010 2nd Qtr. NA 95.4 NA 2 16 <10UJ 404 240 540 2.8
<br /> 717/2010 3rd Qir. NA 33.3 NA <5 81 <10 866 1,230 357 3.7
<br /> 10/12/2010 4th Qtr. NA 266 NA 2J 25 <10 4,580 1,750 963 1.5
<br /> 112012011 1st Qtr. NA 221 NA 8 3J <0.2 360J 30 862 4.2J
<br /> 1/20/2011 1st Qtr.(Dup) NA 237 NA 7 4J <0.2 284 30 990 3.2
<br /> 4/13/2011 2nd Qtr. NA 156 NA 7 11 <0.2 1,770 1,650 BOD 1.8
<br /> 7/19/2011 3rd Qtr. NA 224 NA 6 61 <10 4,32.0 1,540 947 1.5
<br /> 10/12/2011 4th Qtr. NA 191 NA 3J 81 <0.5 1,340 810 960 2.1
<br /> 1/25/2012 1st Qtr. NA 202 NA 6 12 <0.5 245 <10 781 7.4
<br /> 4/2612012 2nd Qtr. NA - 21 NA 5 4J <0.5 592 160 134 8.5
<br /> 7/24/2012 3rd Qtr NA 313 NA 31 51 <0.5 782 1,550 890 2.1
<br /> 10/2312012 4th Qtr. NA 130 NA 31 <10 <0.5 327 940 559 3.1
<br /> 1/24/2013 1st Qtr. NA 9.1 NA 4J <10 <0.5 60 130 90 3.6
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