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September 2019 19121576
<br /> ' Table 6:Summary of Monitoring Results for MW-6
<br /> Date Interim Narrative 5/31/2017 11/15/2017 6/6/2018 11111121.1. 6/1212.1.
<br /> Standard
<br /> ' Metals
<br /> Arsenic,Dissolved(mg/L) 0.01 NA NA NA 0.007 B 0.0074
<br /> Barium,Dissolved(mg/L) 2 7.85 7.77 7.65 7.25 6.66
<br /> Boron,Dissolved /L 0.75 0.7 0.8 0.6 0.6 0.6 B
<br /> Chromium,Dissolved(mg/L) 0.1 NA NA NA <0,02 U <0.002 U
<br /> ' Copper,Dissolved(mg/L) 0.2 NA NA NA <0.02 U <0.002 U
<br /> Iron,Dissolved(ri 0.3 1.7 3.4 3.0 2.9 2.2
<br /> Lead,Dissolved(mg/L) 0.05 NA NA NA <0.005 U <0.0005 U
<br /> Lithium,Dissolved(mg/L) 2.5 NA NA NA 1.74 1.87
<br /> Manganese,Dissolved /L 0.05 0.14 B 0.07 B 0.06 B 0.09 0.0733 U
<br /> Selenium,Dissolvetl(ni 0.02 NA NA NA <0.003 U 0.0009
<br /> Thallium,Dissolved(m/L) 0.002 NA NA NA <0.005 U <0.0005 U
<br /> Uranium,Dissolved(m/L) 0.03 NA NA NA 0.004 0,0023
<br /> Zinc,Dissolved(mg/L) 2 NA NA NA <0.5 U <0.5 U
<br /> Other
<br /> Chloride (m/L) 250 6,130 5,900 5,880 6,490 6,610 H
<br /> Fluoride(mg/L) 2 NA NA NA 1,09 1.2
<br /> ' Lab pH(s.u) 6.5-8.5 8A H 7.7 H 7.8 H 8 H 7.9 H
<br /> Total Dissolved Solids,filterable residue m/L) 1.25 x Background' 10,500 10,400 10,500 10,700 10,600
<br /> Sulfate(ri 250 <250 U <200 U 51 B <200 U <200 U
<br /> Gross Alpha(Ci/L) 15 NA NA NA 47(236) 33(324)
<br /> Gross Beta(Ci/L) NA NA NA 43(t35) 56(±47)
<br /> Field Parameters Not Available a-2010)
<br /> Field pH s.0 6.5-8.5 7.79 7.86 7.76 7.34 7.76
<br /> Field Conductivity(pS/cm) none 17,850 17,470 18,950 17,560 18,000
<br /> Temperature(Degrees Celsius) none 16.6 11.3 17.7 11.1 17.9
<br /> Supplemenbury,Analytes
<br /> Aluminum,Dissolved(mg/L) 5 NA NA NA <2 U <3 U
<br /> Antimony,Dissolved(mg/L) 0 006 NA NA NA <0.02 U 0,00148
<br /> ' Beryllium,Dissolved(mg/L) 0.004 NA NA NA <0.003 U <0.0003 U
<br /> Bicarbonate as CaCO3(mg/L) none 658 639 652 NA 685 H
<br /> Carbonate as CaCO3(ri none <20 U <20 U <20 U NA <20 UH
<br /> Cadmium,Dissolved(mg/L) 0.005 NA NA NA <0.003 U 0,00006 B
<br /> Calcium,Dissolved(mg/L) none 51 44 41 47 40
<br /> Cobalt,Dissolved m/L 0.05 NA NA NA <0.003 U 0.00024 B
<br /> C snide,Free(mg/L) 0.2 NA NA NA 0,009 8 0,012
<br /> Magnesium,Dissolved(mg/L) none 16 16 16 16 14
<br /> Mercu ol Dissved m/L) 0.002 NA NA NA <0.001 U <0.001 U
<br /> Molybtlenum,Dissolved m/L 0,21 NA NA NA 0.025 B 0.0208 U
<br /> Nickel,Dissolved( 2) 0.1 NA NA NA 0.007 B 0.0063 U
<br /> Potassium,Dissolved(mg/L) none 9 B 9 B 8 B 10 9 B
<br /> Silver,Dissolved(mg/L) 0.05 NA NA NA <0.005 U <0.0005 U
<br /> ' Sodium,Dissolved(mg/L) none 3,920 4,060 3,870 3,960 3,910
<br /> Vanadium,Dissolved m/L 0.1 NA NA NA <0.02 U 0.0005 U
<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= not analyzed
<br /> =Secondcond 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
<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
<br /> ' nuclides(Tritium and Strontium)with known energy levels.Specific nuclides were not pail of the approved constituent list.
<br /> GOLDER
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