FIELD DOCUMENTS AND WORK PLANS 2004-2014

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TABLE I LA130RATORY ANALYTICAL RESULTS FORMER MARLEY COOLING TOWER SITE STOCKTON,CALIFORNIA Page 14 of 24 LaboratoryAnalyses Screened Hexavalent Water-bearing Nitrate as N Calcium Chromium Chromium Manganese Well Zone Sample Date EventlPur ose (mg/L` Sulfate mg/L) (m IL ArseniLCP 1LL g1L u 1L" Iron pg1L f€g1TDS m IL TOC mglL Water Quality Objective 10 250 10 50 50 300 5/ 450 In'ectienAreaWei- Continued MW-322 Intermediate 411!2008 Base€€nel2nd Qtr 4.6 19.2 NA 10 11 <10 116 <10 339 <1.0 7110!2008 3rd Qtr. 3.3 35.7 NA 10 23 <10 690 840 537 2.2 7/10/2008 3rd Qtr.(Dup) 3.3 35.5 NA 10 24 <10 610 860 559 2.2 10!2212008 4th Qtr. 2.6 36.9 NA 10 <i0 <10 <100 2,150 577J 3.9J 1/812009 1st Qtr. 3.8 40.1 NA 8 38 10 <100 1,470 562 <1.0 4!712009 2nd Qtr. 4.6 34,7 NA 9 14 <i0 412 1,560 607 2.1 J 7/142009 3rd Qtr. NA 36.2 NA 7 16 20 542 1,620 591 1.4 { 7!14!/2009 3rd Qtr.(Dup) NA 38.0 NA 7 18 20 477 1,560 605 1.4 10/14/2009 4th Qtr, NA 36.9 NA 9 46 30 454 1,230 614 1.6 10/14/2009 4th Qtr.(Dup) NA 38.5 NA 9 45 30 439 1,250 592 1,4 .. 2/2/2010 1st Qtr. NA 37.9 NA 9 63 50 492 890 587 0.6 411412010 2nd Qtr, NA 39.8 NA 101 58 60 346J 840 570 0.8U 4/14/2010 2nd Qtr.(Dup} NA 39.8 NA 8 57 60 270 750 579 0.7U 7/8/2010 3rd Qtr. NA 45.6 NA 10 44 40 464 890 605 7.3 10/13/2010 4th Qtr. NA 45.6 NA 11 32 20 453 11010 603 0.51 1202010 4th Qtr. NA 50.6 NA 12 26 20.8 405 880 691 1.0 1!2112011 1st Qtr. NA S2.1 NA 12 27 22.1 382 920 734 <1.0 4/14/2011 2nd Qtr. NA 49.2 NA 11 30 22.8 221 450 551 0.51 7/21/2011 3rd Qtr. NA 57.3 NA 10 22 10 415 430 602 1.0 10/13/2011 4th Qtr. NA 67.8 NA_97J 6.9 311 930 721 0.3J 1125!2012 lstQtr. NA 71.7 NA 4J 16 15.7 350 7J 587 1.1 1/25/2012 1st Qtr.(Dup) NA 71.7 NA 31 16 15.8 377 6J 590 0.7J 4126/2012 2nd Qtr. NA 71,6 NA 10 20 17.4 236 450 616 1.3 7118/2012 3rd Qtr NA 78.1 NA 10 24 23.4 256 240 592 0.51 7/1812012 3rd Qtr(Dup) NA 78.3 NA 9 24 23.2 264 240 602 0.4,1 10/24/2012 4th Qtr NA 79.3 NA 11 15 14.9 350 250 608 O.6J 10!2412012 4th Qtr(Dup) NA 78.3 NA 11 16 15.3 352 240 594 0.7J 1/29/2013 1st Qtr. NA 88.5 NA 10 15 13.7 338 290 616 0.7J 4!11!2013 2nd Qtr. NA 77.6 NA 10 14 13.3 249 390 630 2.0 MW-323 Intermediate 1/14/2008 Baseline 4.7 41.7 NA <5 11 <10 275 <10 551 <1.0 4/2/2008 2nd Qtr. 5.0 43.0 NA <5 15 <10 208 <10 519 <1.0 4/2/2008 2nd Qtr.(Dup) 4.9 43.5 NA <5 12 10 204 <10 573 <1.0 7/11/2008 3rd Qtr. 5.5 IF5.6 NA <5 <10UJ <10 615 <10UJ 588 <1.0 10/21/2008 4th Qtr. 4.7 43.1 NA <5 29 <10 <100 <10 577 2.8 10/21/2008 4th Qtr.(Dup) 4.7 44.2 NA <5 29 <10 <100 <10 565 2.6 1/9/2009 18t Qtr, 4.8 47.1 NA 5 24 10 <100 <10 575 <1.0 1/9/2009 1st Qtr.(Dup) 4.6 45.9 NA 6 23 10 <100 <10 594 <1.0 t 4/7/2009 2nd Qtr. 5.2 42.7 NA <5 <10 <10 410 10 595 <1.0 7/14/2009 3rd Qtr. NA 42.0 NA <5 <10 <10 442 <10 570 1.2 10/12/2009 4th Qtr. NA 40.7 NA 4 14 <10 408 <10 610 1.3 t 211/20110 1st Qtr. NA 40.8 NA 4 26 <10 448 <10 557 0.4 4113f2010 2nd Qtr. NA 17.0 NA 7 9 <10UJ 100 <10 319 0.6U 7/7/2010 3rd Qtr. NA 40.7 NA 4J 14 <10 457 <10 560 0.61 10/12/2010 4th Qtr. NA 41.1 NA 4J 16 <10 430 <10 568 1.1 10/12/2010 4th Qtr.(Dup) NA 41.6 NA 4J 16 <10 452 <10 584 0.91 112012011 1st Qtr. NA 41.2 NA 5 11 4.73 366 <10 589 0.61 1120/2011 1st Qtr.(Dup) NA 44.3 NA 4J 10 4.66 419 <10 580 0.31 4113!2011 2nd Qtr NA 30.8 NA 5 7J 4.04 156 <10 454 <1.0 4/13/2011 2nd Qtr.(Dup) NA 30.5 NA 5 7J 4.07 171 <10 447 <1.0 7/20/2011 3rd Qtr. NA 37.3 NA 4J 10 <10 298 <10 501 <1.0 10/12/2011 4th Qtr. NA .42.8 NA 2J <10 <0.5 280 20 608 1.4 1/25/2012 1st Qtr. NA 42.5 NA 1J 7J 6.60 25J <10 541 1.5 1/25/2012 18t Qtr.(Dup) NA 42.5 NA <S 7J 6.45 <50 <10 554 1.4 4!2412012 2nd Qtr. NA 42.8 NA 5 aJ 6.44 228 <10 557 1.5 7/23/2012 3rd Qtr NA 38.5 NA 4J 9J 5.53 190 <10 522 0.51 10/22/2012 4th Qtr NA 46.4 NA <5 <10 6.05 358 60 561 1.4 1/24/2013 1st Qtr. NA 43,1 NA 4J 81 6.64 229 <10 558 0.91 1/24/2013 1st Qtr, Dup) NA 43.6 NA 4J 71 6.64 229 <10 548 0.91 a t