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September 2019 19121576 <br /> Table 6:Summary of Monitoring Results for MW-6 <br /> Date Sta Interim ndard Na-'ve .11.12.11 5/28/2013 8/27/2013 11/14/2013 2/18/2014 5/21/2014 8/27/2014 11111/2.14 2/18/2015 5/27/2016 8/27/2015 11/9/2015 2/15/2016 5/31/2016 8/16/2016 11/9/2016 <br /> Metals <br /> Arsenic,Dissolved(mg/L) 0.01 0.002 B <0.01 U <0.01 U <0.01 U 0.004 B 0.007 NA NA NA NA NA NA NA NA NA NA <br /> Barium,Dissolved(mg/L) 2 0.97 3.22 3.56 4.12 5.95 3.32 3.46 4.37 7.37 7.47 8.74 8.12 8-34 8.26 8.42 8.25 <br /> Boron,Dissolved m/L 0,75 06 0.7 0.6 0.6 0.58 0.7 0.6 0.7 0.6 B 0.6 0,65 0.6 0.57 0.5 0.5 0,55 <br /> Chromium,Dissolved(mg/L) 0.1 <0,01 U <0.02 U 0.018 B <0.02 U <0.02 U <0.01 U NA NA NA NA NA NA NA NA NA NA <br /> Copper,Dissolved(mg/L) 0.2 <0.5 U <0.5 U <0.5 U <0.3 U <0.3 U <0.5 U NA NA NA NA NA NA NA NA NA NA <br /> Iron,Dissolved(mg/L) 0.3 1.0 1.3 0.6 0.6 0.6 2.1 1.9 1.3 2.5 4.1 3.9 5.2 5.3 5.5 5.4 5 <br /> Lead,Dissolved(mg/L) 0.05 <0.003 U <0.005 U <0,005 U <0.005 U <0.005 U <0.003 U NA NA NA NA NA NA NA NA NA NA <br /> Lithium,Dissolved(mg/L) 2.5 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <br /> Manganese,Dissolved m/L) 0.05 0.33 0.29 B 0.2 B 0.19 0.19 0.21 B 0.2 B 0.25 B 0.3 B 0.31 0.39 0.42 0.45 0.37 0.35 0.31 <br /> Selenium,Dissolved(mg/L) 0.02 0.0048 0.007 o.0016 0.002 B 0.001 B 0.0033 NA NA NA NA NA NA NA NA NA NA <br /> Thallium,Dissolved(m/L) 0.002 <0.003 U <0.005 U <0.005 U <0.005 U <0.005 U <0.003 U NA NA NA NA NA NA NA NA NA NA <br /> Uranium,Dissolved(m/L) 0.03 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <br /> Zinc,Dissolved(mg/L) 2 <0.5 U <0.5 U <0.5 U <0.3 U <0.3 U <0.5 U NA NA NA NA NA NA NA NA NA NA <br /> Other <br /> Chloride(mg/L) 250 5,090 5,680 6,080 U 5,860 6,020 6,520 5,610 6,110 5,960 5,680 5,880 5,800 5,590 5,520 6,050 5620 <br /> Fluoride(mg/L) 2 1.3 1A 1.4 1.3 1.3 1.25 NA NA NA NA NA NA NA NA NA NA <br /> Lab pH(s.u) 6.5-8.5 8.1H 8.2H 8.2H 8.2H 8.2H 7.9H 8.0H 8AH 7.7H 7.8H 7.8H 7.7H 7.78 7.4H 7.6H 7.7H <br /> Total Dissolved Solids,filterable residue( /L) 1.25 x Background* 9,110 10,200 9,340 H 10,100 H 10,900 8,800 H 9,350 10,400 10,600 10,300 " 8,840 " 10,200 9,780 10,800 10,400 10500 <br /> Sulfate(m/L) 250 249.7 -250 U <250 U 98.6 B <250 U 52.5 B <250 U <250 U <250 U <250 U <250 U <250 U <250 U <250 U <250 U <250 U <br /> Gross Alpha(pCVL) 15 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <br /> Gross Beta(pCi/L) NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <br /> Field Parameters Not Available -2010 <br /> Field pH s.0 6.5-8.5 7.91 7.67 7.58 7.46 7.85 7.47 7.46 7,75 7.43 7.55 7.2 7.51 7.78 7,32 6.6 7,24 <br /> Field Conductivity(µS/cm) none 9,340 16,470 17,850 18,064 17,460 18,250 18,670 17,940 18,880 16,370 18,670 13,120 14,380 16,600 17,790 17,570 <br /> Temperature(iv <br /> Celsius) none 12.8 17 18.4 13.72 11.3 16.1 17A 7.9 14.5 17.1 19.8 12.7 15.3 17.8 18.3 18.9 <br /> Supplementary Analytes <br /> Aluminum,Dissolved /L 5 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <br /> Antimony,Dissolved(mg/L) 0.006 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <br /> Beryllium,Dissolved m/L 0.004 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <br /> Bicarbonate as CaCO3(m/L) none 463 507 513 529 558 580 608 632 NA 656 673 702 691 736 716 715 <br /> Carbonate as CaCO3(mg/L) none <20 U <20 U -20 U <20 U <20 U <20 U <20 U <20 U NA <20 U <20 U <20 U <20 U <20 U <20 U <20 U <br /> Cadmium,Dissolved(mg/L) 0.005 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <br /> Calcium,Dissolved(mg/L) none 58 44 33 34 32.2 40 41 45 51 49 57.9 63 68 67 69 66.1 <br /> Cobalt,Dissolved m/L 0.05 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <br /> ' C snide,Free m/L 0.2 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <br /> Magnesium,Dissolved(mg/L) none 21 20 18 17 16 16 17 18 22 17 18 17 18 16 19 17.3 <br /> Mercury,Dissolved m/L 0.002 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <br /> Molybdenum,Oil solved(m/L) 0.21 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <br /> Nickel,Dissolved /L 0A NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <br /> Potassium,Dissolved(mg/L) none 14 B 12 B 12 B 11 10 11 10 10 13 B 10 10 10 11 9 B 10 10.7 <br /> Silver,Dissolved(mg/L) 0.05 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <br /> ' Sodium,Dissolved(mg/L) none 3,600 3,920 3,860 4,000 3,960 4,060 3,770 3,710 3,840 3,930 3,850 3,840 4,100 3,770 3,780 3,960 <br /> Vanadium,Dissolved m/L 0.1 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <br /> Notes: <br /> B=Estimated value,less than the practical quantitation limit for that analyte,but greater than the method detection limit <br /> U=Analyte not detected,reported less than the practical quantitation limit <br /> H=Analysis exceeded method hold time,pH is a field test with an immediate hold time. <br /> NA=Ana lyte not analyzed <br /> =Second and third quarter 2015 reports presented calculated total dissolved solids results <br /> Per Section 41.5(C)(6)the of Regulation 41,the"Interim Narrative Standard",is the minimum of Table 1-Table 4 of The Basic Standards for Groundwater(BSGW) <br /> 'TDS standard is 1.25'Background,where background is the average of the 1999-2000 sampling <br /> Values in bold indicate a value greater than the BSGW <br /> "The regulatory standard for Gross Beta is provided in units of exposure,millirems per year(mmms/yr),which would require the measurement of specific nuclides(Tritium and Strontium)with known energy levels. Specific nuclides were not part of the approved constituent list. <br /> V GOLDER <br /> 11 <br />