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September 2019 <br /> 19121576 <br /> Table 2: Summary of Monitoring Results for MW-2 <br /> Date Interim Narrative 4/28/1999 1/21/1999 9/16/1999 11/10/1999 1/11/2000 3/13/2000 5/16/2000 7/10/2000 9/27/2010 3/31/2011 6/28/2011 8/31/2011 11/17/2011 3/27/2012 6/27/2012 9/13/2012 11/13/2012 3/19/T013 5/21IM13 8/26/2013 11/14/2013 <br /> Standard <br /> ' Metals <br /> Arsenic,Dissolved(mg/L) 0.01 NA 0.003 B 0.004 B 0.0567 0.05 B 0.045 0.062 0.042 0.036 0.021 0.03 0.036 <0.01 U <0.01 U <0.01 U <0.005 U 0.001 B 0.002 B 0.001 B 0.002 B 0.001 B <br /> Barium,Dissolved(mg/L) 2 0.4 0,42 0,41 0.41 0.4 0.42 0.41 0.398 2.09 1.33 1.09 0.96 1,09 1.42 1.55 1,72 1.26 1.3 1.07 1.23 1.22 <br /> Boron,Dissolved(mg/L) 0.75 0.73 0.74 0.72 0.74 0.69 0.73 0.74 067 0.7 0.64 0.69 0.78 0,64 0.73 0.72 0.70 0.79 0.71 0.76 0,70 0.74 <br /> Chromium,Dissolved(mg/L) 0.1 <0.3U <0.3U <0.3U <0.3U <0.3U <0.3U <0.3U <0.05U <0,01U <0.01U <0.01U <0.01U <0.01U <0.01U <0.01U <0.01U <0.01U <0.01U <0.01U <0.01U <0.01U <br /> Loper,Dissolved(mg/L) <br /> 0.2 <0.3U <0.3U <0.3U <0.3U <0.3U <0.3U <0.3U <0.05U <0.3U <0.3U <0.05U <0.3U <0.3U <0.05U <0.3U <0.3U <0.3U <0.05U <0.3U <0.3U <0,05U <br /> Iron,Dissolved(mg/L) 0.3 <0.3 U <0.3 U 0.27 B 0.11 B 0.16 B 0.2 B 0.5 0.07 <0.3 U 0.1 B 0.15 <0.3 U 0.3 B 0.91 0.8 0.7 0.16 1.1 0.2 B 0.9 1.3 <br /> Lead,Dissolved(mg/L) 0.05 <0.005 U <0.005 U 0.001 B <0.005 U <0.005 U <0.005 U 0.005 B 0.002 B <0.003 U <0.003 U 0.0011 B 0.0006 B <0.003 U <0.003 U <0.003 U <0.003 U <0.003 U <0.003 U <0.003 U <0.003 U <0.003 U <br /> Lithium,Dissolved(mg/L) 2.5 1 1 1 1 1 1 1 1 0.91 1.3 1.2 1 12 1.1 1.7 1.16 1.2 1.2 1.36 NA NA NA NA <br /> Manganese,Dissolved(mg/L) 0.05 0.49 0.44 0.4 0.33 0.33 0.33 0.33 0.329 0.08 B 0.12 0.139 0.1 0.12 0.102 0.06 B 0.06 B 0.114 0.121 0.09 0.11 0.127 <br /> Selenium,Dissolved(mg/L) 0.02 <0.005 U 0.002 B <0.01 U <0.005 U <0.005 U <0,005 U <0.005 U <0.005 U 0.0006 B 0.0015 0.0006 B <0.001 U <0.001 U <0.001 U <0.001 U 0.0008 B 0.0007 B 0.0011 0.0032 <0.001 U 0.0006 B <br /> ' Thallium,Dissolved(mg/L) 0.002 <0.01 U <0.01 U <5 U <0.0003 U <0,005 U <0,001 U <0.003 U <0.003 U <0.003 U 0.0007 B <0.003 U <0.003 U c 0.003 U <0.003 U <0.003 U <0.003 U <0.003 U <0.003 U <0.003 U <0.003 U <0.003 U <br /> Uranium,Dissolved(mg/L) 0.03 NA NA NA 0,00465 0.005 0.0041 0.0037 0.0042 0.0048 0.0033 0.0025 B <0.003 U 0.0011 B 0.0009 B 0.0012 B 0.0012 B 0.0012 B NA NA NA NA <br /> Zinc,Dissolved(mg/L) 2 <0.3U <0.3U <0.3U <0.3U <0.3U <0.3U <0.3U <0.05U <0.3U <0.3U <0.05U <0.3U <0.3U <0.05U <0.3U <0.3U <0.3U <0.05U <0.3U <0.3U <0.05U <br /> Utter <br /> Chloride(mg/L) 250 2,890 21260 2,670 2,700 2,240 2,880 37100 2730 3,050 3,100 3,090 3,240 3,017 3,052 3,079 3,188 2,968 3,227 3,220 2,960 3,080 <br /> Fluodtle(mg/L) 2 1.7 1.8 1.7 1.5 1.8 1.7 2.1 1.8 1.7 1.5 1.5 1.4 1.6 1.5 1.6 1.5 1.7 1.7 1.6 1.6 1.5 <br /> Nitrate as N(mg/L) 10 c 0.1 U <0.1 U <0.1 U <0.1 U 0.03 NA <0.1 U <0A U 0.14 0.07 B 0.06 B 0.03 B <0.1 U 0.04 B 0.04 B 0.03 B 0.04 B NA NA NA NA <br /> Nitrite as N(mg/L) 1 <0.05 U <0.05 U <0.05 U <0.05 U <0.05 U NA <0.05 U <0,05 U <0.05 U <0.05 U <0.05 U <0.05 U <0,05 U <0.05 U <0.05 U <0.05 U <0.05 U NA NA NA NA <br /> Nitfate+Nitnte as N(mg/L) 10 <0.1 U <0.1 U <0.1 U <0.1 U 0.03 B NA <0.1 U <0.1 U 0.14 0.07 B 0.06 B 0,03 B <0.1 U 0,04 B 0.04 B 0.03 B 0.04 B NA NA NA NA <br /> Lab pH(s.u) 6.5-8.5 8.2 8.2 8.1 8 8.5 7.9 8 8.1 8.6H 8.2H 8.4H 8.3H 8.2H 8.3H 8.3H 8.6H 8.3H 8.3H 8.3H 8.2H 8.1H <br /> Total Dissolved Solids,filterable residue(mg/L) 7084' 59680.0 5.640.0 5,680.0 5,700.0 5,600.0 5,740.0 59600.0 5,700.0 6,270 6.390 6,350 6,320 67140 6,340 6,120 6,270 6,180 6,300 6,400 6,210 H 6,150 H <br /> Sulfate(mg/L) 150 140 160 190 210 240 220 220 220 <300 U 60 B 90 B <100 U <250 U <250 U <250 U <250 U <250 U <250 U <250 U <250 U <250 U <br /> Gross Alpha(pCi/L) 15 NA 44 0 140 0.9 0 1 1 8.4 15(t26) 1 9.8(t25) 18(t24) 3238)) ) 82(z12 -%2((mt263)) -12(tt22 NA NA AAGross Beta(pCi/L) 81 52 80 52 9 26 0 4.5(00) 42 0(t27) 29 330) 1 11( 8 A N <br /> Field Parameters Not Available a-2010 <br /> Field pH(s.u) 6.5-8.5 NA NA NA NA NA NA NA NA 8.71 7.84 7.98 7.54 Z91 8.2 7,61 9.58 8,11 7.6 7.74 Z61 7.61 <br /> Field Conductivity(pS/cm) none NA NA NA NA NA NA NA NA 1,169 1,088 10,160 10,350 70,500 10,630 11 10,640 10,520 6,840 1,130 10,840 11,220 <br /> Temperature(Degrees Celsius) none NA NA NA NA NA NA NA NA 15.47 16 21 A 22.4 12.5 14.5 14.6 19A 13.9 12.2 20.8 18.7 12.58 <br /> S ma Arral Not Historically anal etl <br /> Aluminum,Dissolved(mg/L) 5 NA NA NA NA NA 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 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 NA NA NA NA NA <br /> Bicarbonate as CaCO3(mg/L) none NA NA NA NA NA NA NA NA 993 965 978 953 914 995 968 964 978 955 963 979 1020 <br /> Carbonate as CaCO3(mg/L) none NA NA NA NA NA NA NA NA 108 <20 U 37 22 57 <20 U 21 <20 U 23 29 22 <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 NA NA NA NA NA <br /> Calcium,Dissolved(mg/L) none jNA <br /> NA NA NA NA NA NA NA 14 14 14.4 16 15 15.5 14 16 16.3 15.1 18 17 16.9 <br /> Cobalt,Dissolved(m tL 0.05 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <br /> Cyanide,Free m/L) 0.2 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <br /> Ma nesium,Dissolved(mg/L) none NA NA NA NA NA NA NA 8 8 7.8 7 7 7.48 8 8 7.5 8 7 7.4 <br /> Mercu ,Dissolved( 0.) 0002 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <br /> Moil bdenum,Dissolved(m/L 0.21 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <br /> Nickel,Dissolved /L) 0.1 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <br /> Potassium,Dissolved(mg/L) none NA NA NA NA NA NA NA NA 7 B 8 B 7.4 4 B 6 B 6.6 7 B 7 B 10.8 B 7.0 7 6 B 6.1 <br /> Silver,Dissolved /L 0.05 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <br /> Sodium,Dissolved(mg/L) I none NA NA NA NA NA NA NA NA 29480 2,430 2,470 2,410 2,260 2,410 2,420 2,420 2,310 2,550 2,500 29540 2,490 <br /> Vanadium,Dissolved(mg/L) 0.1 NA NA NA NA NA 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 analyle,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=Analyte 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 /> GOLDER <br /> 3 <br />