2019-03-05_REVISION - M1977348 (5)

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March 2019 18107649 ' Table 8:Summary of Monitoring Results for MW-7 Date Interim Narrative 3/19/2013 5/29/2013 8/27/2013 11/14/2013 2/18/2014 5/2112014 812712014 11/11/2014 2/18/2015 5/27/2015 8/27/2015 11/9/2015 2/15/2016 5131/2016 8116/2016 1119/2016 Standard 1Aatala ' Arsenic,Dissolved m/L 0.01 0.010 0.010 B 0.011 0.008 B 0.015 0.009 B NA NA NA NA NA NAWNANA NA NA Barium,Dissolved m/L 2 0.16 B 0.14 B 0.33 2.08 1.78 3.52 2.35 3.7 5.43 4.74 2.66 2.653.79 1.24 4.19 Boron,Dissolved m/L 0.75 0.6 0.9 0.79 0.75 0.75 0.7 0.8 0.8 0.7 B 0.6 0.73 0.70.6 0.5 0.63 Chromium,Dissolved m L 0.1 <0.01 U <0.02 U 0.009 B <0.02 U -0.02 U <0.02 U NA NA NA NA NA NANA NA NA Co r,Dissolved m/L 0.2 <0.5 U <0.5 U <0.3 U <0.3 U <0.3 U <0.5 U NA NA NA NA NA NANA NA NA Iron,Dissolved m L 0.3 1.6 3.4 1,5 2.9 2.9 2.8 4A 3.8 4.6 5.8 4.7 4.65.9 2.3 3.26 Lead,Dissolved m/L 0.05 <0.003 U <0.005 U <0.005 U <0.005 U <0.005 U -0.005 U NA NA NA NA NA NANA NA NA Lithium,Dissolved m/L 2.5 NA NA NA NA NA NA NA NA NA NA NA NANA NA NA Man anese,Dissolved m/L 0.05 0.27 0.66 0.51 0.61 0.53 0.41 0.66 0.45 0.3 B 0.38 0.37 0.360.3 0.26 B 0.205 Selenium,Dissolved m/L 0.02 0.0025 0.006 <0.003 U 0.002 B 0.001 B 0.001 B NA NA NA NA IN NA NA NA NA NA Thallium,Dissolved m L 0.002 <0.003 U <0.005 U <0.005 U <0.005 U <0.005 U <0.005 U NA NA NA NA NA NA NA NA NA NA Uranium,Dissolved m L 0.03 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Zinc,Dissolved m/L 2 <0.5 U <0.5 U <0.3 U <0.3 U <0.3 U <0.5 U NA NA NA I NA NA NA NA NA NA NA 01111111,11111, Chloride m/L 250 3.701 5.280 1 6,040 6.430 6,030 6,510 1 5,330 5,850 6,140 1 6,330 5,880 5,680 6,230 1 5,850 1 5,550 5,990 Fluoride m/L 2 1.3 1.0 1 1.1 1.1 1 1.04 NA NA NA NA NA NA NA I NA 11 NA NA Lab pH s.0 6.5-8.5 8.1 H 8.OH 7.9H 7.9H B.0H 7.6H 7.9H 7.9H 7.8H 7.8H 7.9H 7.8H 7.75 7.6H 7.6H 8H Total Dissolved Solids,filterable residue m/L 1.25 x Back round' 8 640 11 500 10 200 H 10,700 H 10 300 10,600 H 10,100 10,600 10,500 10,200 " 8,800 ^ 10,400 10,800 10,900 10,100 10,700 Sulfate m/L 250 1,589 1,240 1 510 130 B 104 B 60.9 B 80.2 B <250 U <250 U -250 U <250 U <250 U <250 U I <250 U 179 B 101 B ' Gross Alpha Ci/L 15 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Gross Beta Ci/L NA I NA I NA I NA I NA I NA I NA I NA i NA I NA I NA NA NA I NA NA NA Supplemnitery Analytes Aluminum,Dissolved m/L 5 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Antimony,Dissolved m/L 0.006 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Beryllium,Dissolved m/L 0.004 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Bicarbonate as CaCO3 m L none 458 596 696 715 838 822 785 837 NA 765 853 828 821 828 844 836 Carbonate as CaCO3 m/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 Cadmium,Dissolved m/L 0.005 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Calcium,Dissolved m L none 105 142 103 72 67.8 58 56 51 50 47 52 53 54 50 54 47.1 Cobalt Dissolved m L 0.05 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA C snide Free m/L 0.2 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Ma nesium,D olvediss m/L none 40 43 30 25 22 21 21 20 23 19 19 18 20 18 19 18 Mercury,Dissolved m/L 0.002 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Molybdenum,Dissolved m/L 0.21 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Nickel,Dissolved m/L 0.1 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Potassium,Dissolved m/L none 11 B 13 B 12 11 10 10 11 9 B 13 B 9 B 9 10 11 10 10 8.8 Silver,Dissolved m/L 0.05 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Sodium,Dissolved m/L none 3 200 4,150 4 720 4 280 4 020 4,350 3,910 3,740 3,970 4,010 3,930 3,880 4,240 3,930 3,820 4,330 ' Vanadium Dissolved m L 0.1 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Notes: B=Estimated value,less than the practical quantitation limit for that analvte,but greater than the method detection limit U=Analyte not detected,reported less than the practical quantitation limit H=Analysis exceeded method hold time.PH is a field test with an immediate hold time. NA=Analvte not analyzed ^=Second and third quarter 2015 reports presented calculated total dissolved solids results 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) 'TDS standard is 1.25'Background,where background is the average of the 1999-2000 sampling Values in bold indicate a value greater than the BSGW "The regulatory standard for Gross Beta is provided in units of exposure,millirems per year(mrems/yr),which would require the measurement of specific nuclides(Tritium and Strontium)with known energy levels. Speck nuclides were not part of the approved constituent list. ' J GOLDER 1