ARCHIVED REPORTS (2) - Laserfiche WebLink

Home Browse Search

TABLE 5 LABORATORY ANALYTICAL RESULTS 2013 SEMIANNUAL GROUNDWATER MONITORING REPORT FORMER MARLEY COOLING TOWER SITE STOCKTON,CALIFORNIA Page 21 of 25 Laboratory Analyses Screened Hexavalent Water-bearing Nitrate as N Calcium Chromium Chromium Manganese Well Zone Sample Date Event/Purpose m /L* Sulfate (mg/L (mg/L Arsenic N /L) (pg/L) N /L** Iron(pg/L) (pg/L) TDS(mg/L) TOC(mg/L Water Quality Objective 10 250 10 50 50 300 50 450 Background/Compliance Wells Continued MW-310 100-Foot Sand 1/21/2008 Background 6.4 16.5 NA 6 <10 <10 243 <10 377 <1.0 4/1/2008 2nd Qtr./Compliance 9.9 21.0 NA 7 11 <10 187 <10 463 <1.0 4/1/2008 2nd Qtr./Supplemental(Dup) 9.9 19.8 NA 7 10 <10 200 <10 468 <1.0 7/10/2008 3rd Qtr./Compliance 9.6 20.9 NA 8 <10 <10 519 <10 476 <1.0 10/21/2008 4th Qtr./Compliance 12.9 40.6 NA <5 46 <10 <100 <10 748 2.8 1/9/2009 1st Qtr. 12.2 23.6 NA 8 25 <10 <100 <10 608 <1.0 4/7/2009 2nd Qtr. 12.4 27.9 NA 7 <10 <10 456 <10 545 1.2 J 7/14/2009 3rd Qtr. NA 38.4 NA <5 10 <10 626 <10 743 1.1 7/14/2009 3rd Qtr.(Dup) NA 37.8 NA <5 <10 <10 637 <10 756 1.3 10/12/2009 4th Qtr. NA 52.2 NA 4 8 <10 569 10 777 1.3 2/1/2010 1st Qtr. NA 39.6 NA 4 41 <10 605J <10 780 0.5 2/1/2010 1st Qtr.(Dup) NA 37.5 NA 4 39 <10 750 <10 749 0.5 4/13/2010 2nd Qtr. NA 37.8 NA 4 12J <10 402 <10 821 0.7U 4/13/2010 2nd Qtr.(Dup) NA 38.1 NA 4 25 <10UJ 422 <10 782 0.7U 7/7/2010 3rd Qtr. NA 40.0 NA 3J 30 <10 628 <10 754 0AJ 7/7/2010 3rd Qtr.(Dup) NA 40.2 NA 3J 22 <10 610 <10 759 0.2J 10/13/2010 4th Qtr. NA 44.4 NA 4J 26 <10 789 <10 767 0.91 1/21/2011 1st Qtr. NA 45.0 NA 5 19 7.44 542 <10 899 <1.0 4/13/2011 2nd Qtr. NA 40.6 NA 3J 14 7.04 458 <10 755 <1.0 7/20/2011 3rd Qtr. NA 47.0 NA 3J 17 <10 515 <10 787 <1.0 10/12/2011 4th Qtr. NA 44.2 NA 1J <10 <0.5 413 20 837 0.7J 1/24/2012 1st Qtr. NA 46.6 NA 2J 81 5.12 375 <10 779 1.1 4/24/2012 2nd Qtr. NA 44.6 NA 4J 10 8.36 362 <10 789 0.9 7/24/2012 3rd Qtr NA 45.7 NA 3J 15 7.82 349 <10 786 0.91 10/24/2012 4th Qtr NA NA NA NA 91 NA NA NA NA NA 1/25/2013 1st Qtr. NA NA NA NA 91 NA NA NA NA NA 4/11/2013 2nd Qtr. NA NA NA NA 91 NA NA NA NA NA MW-211 Intermediate 1/21/2008 Background 6.4 29.6 NA <5 <10 <10 241 <10 398 <1.0 1/21/2008 Background(Dup) 7.0 28.8 NA <5 <10 <10 214 <10 384 <1.0 4/1/2008 2nd Qtr./Compliance 7.3 30.3 NA <5 <10 <10 138 <10 417 <1.0 7/10/2008 3rd Qtr./Compliance 6.3 31.6 NA <5 <10 <10 374 <10 438 <1.0 10/21/2008 4th Qtr./Compliance 6.8 31.5 NA <5 <10 <10 <100 <10 414 2.1 1/8/2009 1st Qtr. 7.7 38.0 NA 6 17 <10 <100 <10 422 <1.0 4/7/2009 2nd Qtr. 8.7 30.6 NA 5 <10 <10 277 <10 419 <1.0 7/14/2009 3rd Qtr. NA 31.7 NA <5 <10 <10 388 <10 441 1.7 10/12/2009 4th Qtr. NA 28.4 NA 4 8 <10 320 <10 461 1.3 2/1/2010 1st Qtr. NA 29.4 NA 4 16 <10 329 <10 462 0AU 4/13/2010 2nd Qtr. NA 27.5 NA 5 13 <10UJ 185 <10 479 0.3U 7/7/2010 3rd Qtr. NA 29.6 NA 4J 11 <10 389 <10 446 0.51 10/12/2010 4th Qtr. NA 32.5 NA 4J 10 <10 264 <10 431 0.81 1/20/2011 1st Qtr. NA 29.9 NA 5 5J 1.78 210 <10 512 0.3J 4/13/2011 2nd Qtr. NA 29.7 NA 4J 5J 2.07 184 <10 419 1.2 7/19/2011 3rd Qtr. NA 30.2 NA 4J 4J <10 155 <10 389 <1.0 10/12/2011 4th Qtr. NA 20.4 NA 4J <10 0.61 129 6J 311 0.51 1/24/2012 1st Qtr. NA 26.4 NA 4J 3J 2.09 150 <10 370 0.91 4/24/2012 2nd Qtr. NA 26.2 NA 5 3J 1.96 148 <10 356 0.81 7/24/2012 3rd Qtr NA 28.6 NA 5 4J 2.06 151 <10 380 0.6J 10/23/2012 4th Qtr NA NA NA NA 3J NA NA NA NA NA 1/24/2013 1st Qtr. NA NA NA NA 3J NA NA NA NA NA