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TABLE 1 <br /> LABORATORY ANALYTICAL RESULTS <br /> FORMER MARLEY COOLING TOWER SITE <br /> STOCKTON,CALIFORNIA <br /> Page 11 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 mg1L* Sulfate mg/L) (mg[L) Arsenic pg/L !i) (pg/L)*. Iron /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 /> 1-11 Intermediate 5120/2008 Supplemental 5.0 26J 43.9 8 481 470 179 <10 380J 1A <br /> 7/11/2008 3rd Qtr. 5.9 24.2J NA 8 200 200 375 <10 397 <1.0 <br /> 10/22/2008 4th Qtr, 5.2 27.1J NA 9 110 100 <100 40 383J 1.3J <br /> 1/12/2009 1st Qtr. 6.2 25.7 NA 9 112 140 <100 40 410 <1.0 <br /> 4/812009 2nd Qtr. 6.3 25.7 NA 8 90 100 283 30 423 1.1 1 <br /> 7/15/2009 3rd Qtr. NA 26.0 NA 8 74 100 443 10 436 1.3 <br /> 10/1512009 4th Qtr. NA 23.8 NA 8 76 90 295 7 445 1.5 <br /> 2/2/2010 1st Qtr. NA 24.6 NA 7 68 80 422 5 467 0.5 <br /> 4/15/2010 2nd Qtr. NA 24.7 NA 8 72 70 325 <10 431 0.3U <br /> 7/812010 3rd Qtr. NA 27.2 NA 8 67 60 363 <to 492 0.61 <br /> 10/14/2010 4t1i Qtr. NA 26.2 NA 7 60 60 414 <10 449 0.81 <br /> 1216/2010 4th Qtr. NA 25.5 NA 8 55 54.3 293 <10 605 0.51 <br /> 1/25/2011 1st Qtr, NA 23.8 NA 6 56 56.3 170 <10 513 <1.0 <br /> 4/14/2011 2nd Qtr. NA 25.6 NA 7 80 79.8 258 <10 424 0.07J <br /> 512312011 Supplemental NA NA NA NA 126 120 227 <10 NA <1.0 <br /> 6/20/2011 Supplemental NA NA NA NA 184 180 170 <10 NA <1.0 <br /> 7/21/2011 3rd Qtr. NA 24.9 NA 6.0 196 190 276 <10 416.0 <1.0 <br /> 8122!2011 Supplemental NA NA NA NA 367 343 84 <br /> <10 NA 0.61 <br /> 10/17/2011 4th Qtr. NA 23.5 NA 7.0 368 367 217 <10 483 0.2J <br /> 10117/2011 4th Qtr.(Dup) NA 24.6 NA 7.0 370 369 208 <10 453 0.3J <br /> 112612012 1st Qtr. NA 27.0 NA 7.0 450 441 207 <br /> <10 424 0.51 <br /> 1/26/2012 1st Qtr.{Dup) NA 27.0 NA 7.0 463 440 221 <10 412 0.51 <br /> 4/30/2012 2nd Qtr. NA 26.0 NA 9.0 510 507 170 <10 439 1.1 <br /> 413012012 2nd Qtr.(Dup) NA 25.8 NA 9.0 511 508 180 <br /> <10 430 1.0 <br /> 7/18/2012 3rd Qtr NA 2.6 NA 7.0 440 438 206 <10 516 0.3J <br /> 10/25/2012 4th Qtr NA 26.2 NA 9.0 305 303 285 <10 461 0.51 <br /> 112912013 1 st Qtr. NA 27.5 NA 7.0 360 346 296 100 450 3.3 <br /> 4/1212013 2nd Qtr. NA 30.8 NA 7.0 100 82 207 200 471 3.6 <br /> MW-1 Intermediate 1/21/2008 Baseline 4.7 40.5 NA <5 <10 <10 360 30 460 <1.0 <br /> 41112006 2nd Qtr. 5.4 43.9 NA <5 10 <10 216 10 452 <1.0 <br /> 7/10/2008 3rd Qtr. 5.8 43.3 NA <5 <10 <10 530 <10 466 <1.0 <br /> 1012112006 4th Qtr. 5.3 42.8 NA <br /> <5 <10 <10 <100 <10 464 1.5 <br /> 1/8/2009 1st Qtr, 5.9 45.1 NA 5 17 <10 <100 <10 487 <1.0 <br /> 41712009 2nd Qtr. 6.3 43.6 NA <5 <10 <10 319 20 497 <1.0 <br /> 7/14/2009 3rd Qtr. NA 44.4 NA <5 <10 <10 384 <10 474 1.1 <br /> 10112!2009 41h Qtr. NA 42.4 NA 2 14 <10 390 30 523 1.7 <br /> 1011212009 41h Qtr.(Dup) NA 42.2 NA 3 6 <10 408 20 531 1.6 <br /> 2/1/2010 1st Qtr. NA 45.4 NA 3 18 <10 387 7 479 0.4U <br /> 4/13/2010 2nd Qtr. NA 44.3 NA 4 14 101 230 <10 521 0.6U <br /> 7/7/2010 3rd Qtr. NA 45.3 NA 31 11 <10 389 61 550 0.4J <br /> 10/1212010 4th Qtr. NA 45.5 NA 31 11 <10 308 6J 491 0.91 <br /> 1120/2011 1 st Qtr. NA 44.5 NA 31 <10 0.64 290 10 556 <1.0 <br /> 4/13/2011 2nd Qtr, NA 45.4 NA 4J 6J 3.00 279 <10 526 0.9J <br /> 7/1912011 3rd Qtr. NA 45.0 NA 33 51 <10 223 61 484 <1.0 <br /> 10/12/2011 4th Qtr. NA 44.9 NA 3J 3J 2.50 293 7J 555 0.3J <br /> 1/25/2012 1st Qtr. NA 44:1 NA 3J 41 2.71 213 7J 502 0.8J <br /> 4/24/2012 2nd Qtr. NA 43.3 NA 4J 3J 1.42 230 10 500 1.1 <br /> 7/24/2012 3rd Qtr NA 47.4 NA 31 5J 2.29 229 91 508 0.6J <br /> 10/23/2012 4th Qtr NA NA NA 4J 6 NA NA NA NA NA <br /> 1/25/2013 1st Qtr. NA NA NA NA <10 NA NA NA NA NA <br />