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September 2019 19121576
<br /> Table 7:Summary of Monitoring Results for MW-7
<br /> Date Interim Narrative 5/11/2017 11/15/2017 6/6/2018 11/15/2018 6/12/2019
<br /> Standard
<br /> metals
<br /> ' Arsenic,Dissolved(mg/L) 0.01 NA NA NA 0,002 B 0,0031
<br /> Barium,Dissolved( /L) 2 3.96 3.8 5.5 3.42 4.42
<br /> Boron,Dissolved /L 0.75 0.7 0.8 0.7 0.7 0.7 B
<br /> Chromium,Dissolved(nrg/L) 0.1 NA NA NA <0.02 U <0.002 U
<br /> Copper,Dissolved(m L) 0.2 NA NA NA <0.02 U <0.002 U
<br /> Iron,Dissolved L 0.3 5.5 6.1 111 3.9 2
<br /> Lead,Dissolved /t 0.05 NA NA NA <0.005 U <0.0005 U
<br /> Lithium,Dissolved( /L) 2.5 NA NA NA 1.84 2.02
<br /> Man anese,Dissolved m/L 0.05 0.19 B 0.18 B 0.14 B 0.11 B 0.2 B
<br /> Selenium,Dissolved /L) 0.02 NA NA NA <0.003 U 0.001
<br /> Thallium,Dissolved( /L) 0.002 NA NA NA <0.005 U -0.0005 U
<br /> Uranium,Dissolved L 0.03 NA NA NA 0.005 0.004
<br /> Zinc,Dissolved /L 2 NA NA NA <0.5 U 0.1 B
<br /> Chloride (mg/L) 250 61480 6,240 6,440 7,310 7,480 H
<br /> Fluoride(mg/L) 2 NA NA NA 0.88 1
<br /> Lab 1 pH(s.0 6.5-8.5 8H 7.8H 7.7H 7.9H 7.9H Total Dissolved Solids,filterable residue l- 1.25 x Background* 11,100 11,300 11,500 IH 11,300 111300
<br /> Sulfate /L) 250 59 B 58 B 75 B 83.9 B 63.8 B
<br /> Gross Alpha Ci/L) 15 NA NA NA 5.8(t29) 23(t41)
<br /> Gross Beta(pCi/L) NA NA NA 34(m42) 42(x252)
<br /> Flold.Parameters Not Available re-2010
<br /> Field PH s.0 6.5-8.51 7.65 7.17 1 7.37 1 7.19 1 7.61
<br /> Field Conductivity(µS/cm) none 19,350 18.550 20,050 19.200 19,110
<br /> Temperature(Degrees Celsius) none 1 22.5 12.3 16.4 12.9 1 16.3
<br /> Su ma Ana s
<br /> Aluminum,Dissolved( /L) 5 NA NA NA <2 U <3 U
<br /> Antimony,Dissolved /L 0.006 NA NA NA <0.02 U 0.0015 B
<br /> Beryllium,Dissolved /L) 0.004 NA NA NA <0.003 U <0.0003 U
<br /> Bicarbonate as CaCO3 /L) none 745 700 714 NA 681 H
<br /> Carbonate as CaCO3 /L) none <20 U <20 U <20 U NA <20 UH
<br /> Cadmium,Dissolved( /L) 0.005 NA NA NA <0.003 U 0.00007 B
<br /> Calcium,Dissolved IL none 52 55 52 54 53
<br /> Cobalt,Dissolved /L 0.05 NA NA NA <0.003 U 0.00025 B
<br /> Cyanide,Free m/L 0.2 NA NA NA 0.005 B 0.012
<br /> Magnesium,Dissolved( /L) none 19 20 20 19 18
<br /> Mercury,Dissolved /L 0.002 NA NA NA -0.001 U -0.001 U
<br /> Molybdenum,Dissolved /L 0.21 NA NA NA 0.022 B 0.0182 U
<br /> Nickel,Dissolved A- 0.1 NA NA NA <0.03 U <0.001 U
<br /> Potassium,Dissolved( /L) none 11 98 9 B 11 11
<br /> Silver,Dissolved L 0.05 NA NA NA <0.005 U <0.0005 U
<br /> Sodium,Dissolved(m/L) none 4,240 4,320 4,170 41250 4,220
<br /> Vanadium,Dissolved m/L 0.1 NA NA NA <0.02 U 1).0008 U
<br /> Notes:
<br /> B=Estimated value,less than the practical quanfitafion limit for that analyte,but greater than the method detection limit
<br /> U=Analyte not detected,reported less than the practical quanthation limit
<br /> H=Analysis exceeded method hold time.pH is a field test with an immediate hold time.
<br /> 1 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
<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
<br /> (Tritium and Strontium)with known energy levels.Specific nuclides were not part of the approved constituent list.
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<br /> i
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<br /> 1 GOLDER
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