'August 2020 20144265-2-L-0
<br /> 'Table 2: Summary of Monitoring Results for MW-2
<br /> Interim
<br /> Date Narrative 4/28/1999 7/21/1999 9/16/1999 11/10/1999 1/19/2000 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 3/19/2013 5/28/2013 8/26/2013 11/14/2013
<br /> Standard
<br /> Metals
<br /> Arsenic,Dissolved m /L 0.01 NA 0.003 B 0.004 8 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 04 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 0.67 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 m /L 0.1 <0.3 U <0.3 U <0.3 U <0.3 U <0.3 U <0.3 U <0.3 U <0.05 U <0.01 U <0.01 U <0.01 U <0.01 U <0.01 U <0.01 U <0.01 U <0.01 U <0.01 U <0.01 U <0.01 U <0.01 U <0.01 U
<br /> I
<br /> erDissolved m /L 0.2 <0.3 U <0.3 U <0.3 U <0.3 U <0.3 U <0.3 U <0.3 U <0.05 U <0.3 U <0.3 U <0.05 U <0.3 U <0.3 U <0.05 U <0.3 U <0.3 U <0.3 U <0.05 U <0.3 U <0.3 U <0.05 U
<br /> n,Dissolved m /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 /> ad,Dissolved m /L 0.05 <0.005 U <0.005 U 0.001 8 <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 /> hium,Dissolved m /L 2.5 1 1 1 1 1 1.1 1 0.91 1.3 1.2 1.12 1.1 1.1 1.16 1.2 1.2 1.36 NA NA NA NA
<br /> Man anese,Dissolved m /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 m /L 0.02 <0.005 U 0.002 B <0.005 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 m /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 <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 m /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 <0.3 U <0.3 U <0.3 U <0.3 U <0.3 U <0.3 U <0.3 U <0.05 U <0.3 U <0.3 U <0.05 U <0.3 U <0.3 U <0.05 U <0.3 U <0.3 U <0.3 U <0.05 U <0.3 U <0.3 U <0,05 U
<br /> Odw
<br /> Chloride m /L 250 2,89 2,260 2,670 2,700 2,240 2,880 3,100 2730 3,050 3,100 3,090 3,240 3,017 3,052 3,079 3188 2,968 3,227 3,220 2,960 3,080
<br /> Fluoride(mg/L)m 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 /L 10 <0.1 U <0.1 U <0.1 U <0.1 U 0.03 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 /> Nitrite as N m /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 /> Nitrate+Nitrate 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 8.6 H 8.2 H 8.4 H 8.3 H 8.2 H 8.3 H 8.3 H 8.6 H 8.3 H 8.3 H 8.3 H 8.2 H 8.1 H
<br /> Total Dissolved Solids filterable residue m /L` 7084' S 680 5,640 5,680 5,700 5 fl) 5,740 5,600 5,700 6,270 6,390 6,350 6,320 6,140 6,340 6,120 6,270 6,180 6,300 6 400 6 210 H 6 150 H
<br /> Sulfate(mg/L) 250 140 160 190 210 240 220 220 220 <300 U 66 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 Ci/L 15 NA 44 0 140 0.9 0 1 8A 15 ±26 9.8 ±25 18 ±24 0 ±26 38 ±38 1.1 ±21 5.1 t12 �.2 ±13 -12 ±21 NA INA INA NA
<br /> Gross Beta Ci/L NA 152 180 152 19 126 0 4.5 ±30 42 ±31 12 ±29 0 ±27 73 ±44 8.5 t29 82 ±30 21 ±26 11 ±28 NA INA INA NA
<br /> Field Parameters Not Available Pre-2010
<br /> Field pH s.0 6.5-8.5 NA INA INA INA 1NA 1NA NA NA 8.71 7.84 7,98 7.54 7.91 8.2 7.61 9.58 8,11 T6 7.74 7.61 Z61
<br /> Field ConductivityµS/cm none NA NA NA NA NA NA NA NA 21 9 1,088 10,160 110,350 110,500 110,630 Ill 110.640 10,520 6,840 11,130 li 10,840 111,220
<br /> Temperature(Degrees Celsius) none INA INA INA INA INA INA INA INA 15.47 116 121.4 122.4 112.5 114.5 114.6 1194 113.9 12.2 120.8 1187 112.58
<br /> Supplementary Anal s Not Historical) Anal zed
<br /> Aluminum,Dissolved(m /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 m /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 m /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 m /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 m /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 m /L none NA 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 /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 /> 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 NA
<br /> Magnesium,Dissolved m /L none NA NA NA NA NA NA NA NA 8 8 7.8 7 7 7.4 8 8 8 7.5 8 7 7.4
<br /> Mercury,Dissolved m /L 0.002 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
<br /> Molybdenum,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 NA
<br /> Nickel,Dissolved m /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 /> Potassium,Dissolved m /L none NA NA NA NA NA NA NA NA 7 B 8 B 7.4 4 B 6 B 66 7 B 7 B 10.8 B 7.0 7 6 B 6.1
<br /> Silver,Dissolved m /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 m /L none NA NA NA NA NA NA NA NA 2,480 2,430 2,470 2,410 2,260 2 410 2.420 2.420 2,310 2 550 2 500 2 540 2 490
<br /> Vanadium,Dissolved m /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 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=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(mrems/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.
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