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TABLE 1
<br /> LABORATORY ANALYTICAL RL,SIILTS l
<br /> FORMER MARLEY COOLING TOWER SITE
<br /> STOCKTON,CALIFORNIA p
<br /> Page 4 of 24 Y
<br /> Screened Laboratory Analyses I
<br /> Hexavalent
<br /> Water-bearing Nitrate as N Calcium Chromium Chromium Manganese
<br /> Well zone Sample Rate Event/Purpose (mg/L- Sulfate (m/L) (mg/L) Arsenic pg1L) (pg/L !t ** Iron ug1L /L T€ S mg/l TOC mglL
<br /> Water QualU OUective 10 250 10 50 50 300 50 450
<br /> In ection Area Wells Continued
<br /> MW-146 Shallow 11912008 Baseline 9.0 29.8 NA <5 500 500 238 <10 463 <1,p
<br /> 4[212 008 2nd Qtr, 8.2 24.3 NA <5 92 90 199 <10 470 <1.0
<br /> r
<br /> 7/11/2008 3rd Qtr. 14.6 42.5 NA <5 132 130 535 <10 563 <1.0
<br /> 10/22/2008 4th Qtr, 14.8 43.0 NA <5 116 100 <100 <10 574J I AJ
<br /> 1/12/2009 1st Qtr. 13.0 36.0 NA <5 121 120 <100 20 551 <1.0
<br /> 4/8/2009 2nd Qtr. 13.3 37.8 NA <5 158 170 372 <10 446 1.2 J
<br /> 7/1512009 3rd Qtr. NA 35.7 NA <5 97 110 587 20 527 2.2
<br /> 10/15/2009 4th Qtr, NA 3.5 NA 2 25 30 54 20 85 5.0
<br /> 21212010 1st Qtr. NA 4.7 NA <5 30 <10 162 20 118 1.3
<br /> 2120010 1st Qtr.(Dup) NA 5.0 NA <5 26 <10 152 20 128 1.6
<br /> 4/1512010 2nd Qtr. NA 58.5 NA <5 9 <10 343 240 513 1,4J
<br /> 7/8/2010 3rd Qtr. NA 77.3 NA2J 192 190470 10 598 0.7J
<br /> 10/14/2010 4th Qtr. NA 87.7 NA 21 143 140 615 10 605 1.1
<br /> 1/25/2011 1st Qtr. NA 167 NA 2J 135 134 369 20 671 <1.0
<br /> -411812011 2nd Qtr. NA 100 NA 3J 272 270 119 <10 636 0.4J
<br /> 7/21/2011 3rd Qtr. NA 92 NA 2J 260 260 324 10 578 1.0
<br /> 10/17!2011 4th Qtr. NA 47,1 NA 2J 157 157 243 10 546 0.4J
<br /> 1/25/2012 1st Qtr. NA 32.8 NA 9 230 228 264 400 331 1.6
<br /> 4130/2012 2nd Qtr. NA 104.0 NA 3J 232 225 193 51 558 1.7
<br /> 7/24/2012 3rd Qtr. NA 79.1 NA 31 143 139 402 80 547 0.81
<br /> 10/24/2012 4th Qtr NA 64.9 NA 3J 155 154 283 <10 527 0.7J
<br /> 1/29/2013 1st Qtr. NA 143.0 NA 2J 195 192 450 <10 799 0.51
<br /> MW-204(S-8) Shallow 3/19/2008 Baseline 9.9 39,5 NA <5 3,090 3,000 265 <10 612 <1.0
<br /> 5/20/2008 Supplemental 7.8 42.2 77.3 <5 3,140 3,190 369 20 616J 9.1
<br /> 7/11/2008 3rd Qtr. 9.8 45.2 NA 5 3,040 3,000 767 1,100 647 3.0
<br /> 10!2212008 4th Qtr. 5.2 42.1 NA 5 2,850 2,800 <100 1,490 637J 6.3
<br /> 1/12/2009 1st Qtr. 5.9 41.8 NA <5. 2,800 2,770 <100 1,160 623 1.4
<br /> 1/12/2009 1st Qtr. Dup.) 6.0 42.5 NA 5 2,810 2,670 <100 1,120 614 1.5
<br /> 4!812009 2nd Qtr. 7.2 41.4 NA <5 2,750 2,360 501 1,000 598 1.1 J a
<br /> 4/8/2009 2nd Qtr.(Dup.) 7.7 42.6 NA <5 2,640 2,450 493 960 572 1.1 J
<br /> 7/15/2009 3rd Qtr. NA 39.6 NA <5 4420 2,400 712 660 621 1.3
<br /> 10!15!2009 4th Qtr. NA 40.9 NA 4 2,120 2,160 434 500 601 1.3
<br /> 2!312010 1st Qtr. NA 45.9 NA 3 2,120 1,780 651 450 639 0.6
<br /> 4115!2010 2nd Qtr. NA 45.6 NA 4 2,120 1,950 477 460 625 0.7Ci
<br /> 7/8/2010 3rd Qtr. NA 49.0 NA 31 2,866-2,4-70 563 180 626 0.61
<br /> 10/14/2010 41h Qtr. NA 55.6 NA 3J 4,360 3,630 764 40 636 1.3
<br /> 1!2512011 18t Qtr, NA 42.4 I NA 3J 3,250 2,890 312 10 624 <1.0
<br /> 4/18/2011 2nd Qtr. NA 41.1 NA 4J 2,750 2,620 217 440 637 0.4J h
<br /> 7/21/2011 3rd Qtr. NA 33.5 NA 9 634 480 412 6,750 632 16.0
<br /> 6!2212011 Supplemental NA NA NA NA 2,030 2,020 240 840 NA 2.0
<br /> 10/17/2011 4th Qtr. NA 43.8 NA 3J 2,200 2,190 354 480 661 0.61
<br /> 1124/2012 1st Qtr. NA 36.5 1 NA 4J 500 497 357 1,310 638 1.5
<br /> 7!19!2012 3rd Qtr NA 37.5 7NA 4J 390 331 280 1,350 616 1.2
<br /> 10/25/2012 4th Qtr NA 34.3NA 5 346 322 404 1,130 690 1.2
<br /> 1/30/2013 1st Qtr. NA 33.7 NA 5 365 362 412 1,050 599 1.2
<br /> 4!12!2613 2nd Qtr. NA 32.2 NA 4J 6J <0.5 301 1,590 641 1.2 a
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