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TABLE 5
<br /> LABORATORY ANALYTICAL RESULTS
<br /> 2011 ANNUAL GROUNDWATER MONITORING REPORT
<br /> FORMER MARLEY COOLING TOWER SITE
<br /> STOCKTON,CALIFORNIA
<br /> Laboratory Analyses
<br /> Screened Hexavalent
<br /> Water-bearing Nitrate as N Calcium Chromium Chromium Manganese
<br /> Well Zone Sample Date Event/Purpose (mg/L)* Sulfate (mg/L) (mg/L) Arsenic (pg/L) (pg/L) (pg/L)** Iron (pg/L) (pg/L) TDS (mg/L) TOC (mg/L)
<br /> Water Quality Objective 10 250 -- 10 50 50 300 50 450 --
<br /> Injection Area Wells Continued
<br /> MW-205(S-7) Shallow 3/19/2008 Baseline 8.7 26.2 NA <5 570 500 373 <10 675 <1.0
<br /> 7/11/2008 3rd Qtr. 8.5 18.4J NA <5 186 180 965 <10 793 <1.0
<br /> 10/22/2008 4th Qtr. 7.1 24.2J NA <5 340 400 <100 <10 701J 1.8J
<br /> 1/12/2009 1st Qtr. 9.2 27.8 NA <5 682 680 <100 <10 696 <1.0
<br /> 4/8/2009 2nd Qtr. 8.1 25.0 NA <5 381 370 571 20 418 <1.0
<br /> 7/15/2009 3rd Qtr. NA 25.2 NA <5 525 520 865 <10 742 1.1
<br /> 10/15/2009 4th Qtr. NA 23.5 NA 4 520 540 528 <10 766 1.2
<br /> 2/3/2010 1 st Qtr. NA 32.2 NA 2 659 620 844 <10 813 0.6
<br /> 4/15/2010 2nd Qtr. NA 31.4 NA 3 662 530 696 <10 841 0.6U
<br /> 7/8/2010 3rd Qtr. NA 30.1 NA 3J 704 560 709 <10 806 0.5J
<br /> 10/14/2010 4th Qtr. NA 27.5 NA 3J 714 580 779 <10 720 0.91
<br /> 1/25/2011 1st Qtr. NA 21.8 NA 2J 468 464 329 <10 703 <1.0
<br /> 4/18/2011 2nd Qtr. NA 24.9 NA 4J 540 523 192 <10 696 0.3J
<br /> 7/21/2011 3rd Qtr. NA 20.9 NA 3J 283 230 517 <10 715 <1.0
<br /> 8/22/2011 Supplemental NA NA NA NA 530 503 190 <10 NA 0.8J
<br /> 10/17/2011 4th Qtr. NA 23.7 NA 3J 450 450 360 <10 719 0.3J
<br /> MW-206 Shallow 7/10/2008 3rd Qtr. 1.4 57.1 NA <5 3,300 3,240 298 20 367 <1.0
<br /> 10/22/2008 4th Qtr. 4.6 278 NA <5 24,000 25,100 <100 60 993 3.5
<br /> 10/22/2008 4th Qtr. (Dup) 4.5 281 NA <5 24,000 24,800 <100 60 958J 3.6J
<br /> 11/13/2008 Supplemental 4.8 241 NA <5 21,800 21,400 <100 70 928J 2.04J
<br /> 1/12/2009 1st Qtr. 4.8 182 NA <5 21,600 21,000 <100 30 910 1.8
<br /> 1/12/2009 1st Qtr. (Dup) 5.0 180 NA <5 21,500 21,300 <100 30 905 2.1
<br /> 4/8/2009 2nd Qtr. 6.1 230 NA <5 14,000 13,400 522 40 909 1.5 J
<br /> 4/8/2009 2nd Qtr. (Dup.) 6.1 228 NA <5 14,800 12,800 524 40 938 1.6 J
<br /> 7/15/2009 3rd Qtr. NA 180 NA <5 26,800 27,000 738 60 868 1.7
<br /> 7/15/2009 3rd Qtr. (Dup) NA 180 NA <5 27,200 27,000 760 60 890 1.8
<br /> 10/15/2009 4th Qtr. NA 255 NA 3 12,700 13,600 555 90 962 5.3
<br /> 2/3/2010 1st Qtr. NA 147 NA 3 21,400 20,000 489 <10 681 1.0
<br /> 2/3/2010 1st Qtr. (Dup) NA 145 NA 3 20,900 20,000 482 <10 682 1.0
<br /> 4/15/2010 2nd Qtr. NA 241 NA 4J 11,200 9,900 472 <10 870 1.01
<br /> 4/15/2010 2nd Qtr. (Dup) NA 240 NA 3 11,400 9,900 440 <10 780 1.11
<br /> 7/8/2010 3rd Qtr. NA 252 NA 4J 32,100 29,400 646 8J 934 1.1
<br /> 7/8/2010 3rd Qtr. (Dup) NA 257 NA 4J 32,100 31,400 649 7J 962 1.0
<br /> 10/14/2010 4th qtr. NA 175 NA 21 122 <10 787 3,770 753 6.3
<br /> 10/14/2010 4th Qtr. (Dup) NA 171 NA 19 133 <10 797 3,890 744 6.4
<br /> 1/25/2011 1st Qtr. NA 2.8 NA 6 10 <0.2 9,910 7,510 1,060 270
<br /> 4/13/2011 2nd Qtr. NA 65.7 NA 7 13 <0.2 2,970 6,490 753 9.0
<br /> 7/19/2011 3rd Qtr. NA 4.3 NA 2J 6J <10 255 2,520 577 3.5
<br /> 7/19/2011 3rd Qtr. (Dup) NA 4.3 NA 2J 7J <10 268 2,700 603 3.5
<br /> 10/12/2011 4th Qtr. NA 276 NA 6 <10 <0.5 3,060 5,270 814 3.2
<br /> 10/12/2011 4th Qtr. (Dup) NA 273 NA 6 <10 <0.5 3,080 5,290 855 3.7
<br /> MW-207 Shallow 1/9/2008 Baseline 3.3 10.4 NA <5 20 20 143 <10 321 1.2
<br /> 1/9/2008 Baseline(Dup) 3.3 10.5 NA <5 20 20 149 <10 317 1.2
<br /> 4/2/2008 2nd Qtr. 3.8 11.0 NA <5 32 30 102 <10 353 <1.0
<br /> 7/11/2008 3rd Qtr. 5.0 13.2J NA <5 35 30 360 <10 416 <1.0
<br /> 10/22/2008 4th Qtr. 5.5 20J NA <5 49 40 <100 50 421J 11.1i
<br /> 1/9/2009 1st Qtr. 4.0 11.4 NA 6 60 40 <100 <10 326 1.2
<br /> 4/8/2009 2nd Qtr. 5.4 13.3 NA <5 58 60 260 <10 467 11
<br /> 7/15/2009 3rd Qtr. NA 15.2 NA <5 49 50 409 10 436 1.7
<br /> 10/15/2009 4th Qtr. NA 9.0 NA 4 41 40 176 30 265 3.4
<br /> 2/2/2010 1 st Qtr. NA 12.6 NA 3 44 50 290 40 346 0.9
<br /> 4/15/2010 2nd Qtr. NA 20.2 NA 5 58 60 297 80 401 1.2J
<br /> 7/8/2010 3rd Qtr. NA 28.0 NA 4J 152 150 422 <10 556 0.8J
<br /> 10/14/2010 4th Qtr. NA 34.9 NA 4J 72 70 510 <10 519 1.2
<br /> 1/25/2011 1st Qtr. NA 31.8 NA 3J 49 46.1 255 <10 539 <1.0
<br /> 4/14/2011 2nd Qtr. NA 35.1 NA 4J 53 52.2 160 <10 497 0.2J
<br /> 4/14/2011 2nd Qtr. (Dup) NA 33.9 NA 3J 54 52.9 151 <10 498 0.3J
<br /> 7/21/2011 3rd Qtr. NA 26.2 NA 3J 28 20.0 329 <10 452 <1.0
<br /> 10/13/2011 4th Qtr. NA 20.3 NA 3J 29 28.8 183 6J 452 0.4J
<br /> (Page 4 of 19)
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