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I
<br /> March 2020 19121576
<br /> ITable 5:Summary of Monitoring Results for MW-5
<br /> I Date Units Interim Narrative
<br /> Standard 5/31/2017 11/15/2017 6/6/2018 11/15/2018 6/12/2019 12/12/2019
<br /> Metals
<br /> I Arsenic,Dissolved mg/L 0.01 NA NA NA 0.0019 B 0.0018 0.0011 B
<br /> Barium, Dissolved mg/L 2 0.01 B <0.03 U <0.03 U <0.03 U 0.02 B 0.01 B
<br /> Boron,Dissolved mg/L 0.75 0.36 0.36 0.35 0.33 0.35 0.35
<br /> Chromium,Dissolved mg/L 0.1 NA NA NA <0.004 U <0.002 U <0.001 U
<br /> I Copper,Dissolved mg/L 0.2 NA NA NA <0.1 U <0.1 U <0.002 U
<br /> Iron,Dissolved mg/L 0.3 2.15 10.3 0.97 32.8 7.67 9.22
<br /> Lead,Dissolved mg/L 0.05 NA NA NA <0.001 U <0.0005 U <0.0002 U
<br /> Lithium, Dissolved mg/L 2.5 NA NA NA 0.3 0.39 0.417
<br /> Manganese,Dissolved mg/L 0.05 0.09 0.09 0.08 0.09 0.09 B 0.0772
<br /> i Selenium,Dissolved mg/L 0.02 NA NA NA 0.0017 0.0005 0.0002 B
<br /> Thallium,Dissolved mg/L 0.002 NA NA NA <0.001 U 0.0001 B 0.00007 B
<br /> Uranium, Dissolved mg/L 0.03 NA NA NA 0.0379 0.0261 0.0241
<br /> Zinc, Dissolved mg/L 2 NA NA NA <0.1 U <0.1 U <0.01 U
<br /> I Other
<br /> Chloride mg/L 250 45.4 B 25.8 BH 19.7 B 36.2 B 29.8 B 36 B
<br /> Fluoride mg/L 2 NA NA NA 0.72 0.6 0.7
<br /> Nitrate as N mg/L 10 NA NA NA NA NA 0.57
<br /> I Nitrite as N mg/L 1 NA NA NA NA NA <0.01 U
<br /> Nitrate+Nitrite as N mg/L 10 NA NA NA NA NA 0.57
<br /> Lab pH s.0 6.5-8.5 7.8 H 7.3 H 7.7 H 7.5 7.7 H 7.7 H
<br /> Total Dissolved Solids,filterable residue mg/L 1.25 x Background* 3,970 3,160 3,020 H 3,340 3,630 3,800
<br /> Sulfate mg/L 250 2,540 1,820 H 1,780 2,190 2,180 2,480
<br /> I
<br /> Gross Alpha pCi/L 15 NA NA NA 8.6(±11) 8.5(±9.2) 24(±14)
<br /> Gross Beta pCi/L NA NA NA 18(±13) 8.2(±13) 25(±12)
<br /> Field Parameters(Not Available pre-2010))
<br /> Field pH s.0 6.5-8.5 7.23 7.04 6.81 6.85 7.06 7.08
<br /> I Field Conductivity pS/cm
<br /> Degrees Celsius none 4,530,000 3,280 3,397 3,622 3,983 2,416
<br /> Temperature none 15.4 12.8 16 13.6 15.2 12.2
<br /> Supplementary Analytes(Not Historically analyzr.Historically analyzed
<br /> Aluminum, Dissolved mg/L 5 NA NA NA <0.3 U <0.5 U <0.05 U
<br /> I Antimony,Dissolved mg/L 0.006 NA NA NA <0.004 U <0.002 U <0.0008 U
<br /> Beryllium,Dissolved mg/L 0.004 NA NA NA <0.0005 U <0.0003 U <0.0002 U
<br /> Bicarbonate as CaCO3 mg/L none 348 375 401 NA 392 H 354
<br /> Carbonate as CaCO3 mg/L none <20 U <20 U <20 U NA <20 UH <2 U
<br /> Cadmium,Dissolved mg/L 0.005 NA NA NA <0.0005 U <0.0003 U <0.0001 U
<br /> Calcium, Dissolved mg/L none 429 461 425 490 402 405
<br /> Cobalt,Dissolved mg/L 0.05 NA NA NA 0.0047 0.00595 0.0046
<br /> Cyanide,Free mg/L 0.2 NA NA NA <0.01 U <0.01 U <0.003 U
<br /> I Magnesium,Dissolved , mg/L none 128 119 109 121 113 116
<br /> Mercury, Dissolved mg/L 0.002 NA NA NA <0.001 U <0.001 U <0.0002 U
<br /> Molybdenum, Dissolved mg/L 0.21 NA NA NA <0.2 U <0.2 U 0.0045
<br /> Nickel,Dissolved _ mg/L 0.1 NA NA NA 0.05 B 0.04 B 0.021
<br /> Potassium,Dissolved mg/L none 8.2 7.2 6.6 8.1 8.1 9.4
<br /> I Silver,Dissolved mg/L
<br /> mg/L 0.05 NA NA NA <0.05 U <0.0005 U <0.0002 U
<br /> Sodium,Dissolved none 614 322 329 317 501 617
<br /> Vanadium, Dissolved mg/L 0.1 NA NA NA <0.05 U <0.05 U <0.001 U
<br /> H=Analysis exceeded method hold time.pH is a field test with an immediate hold time.
<br /> I NA=Analyte not analyzed
<br /> ^=Second and third quarter 2015 reports presented calculated total dissolved solids results
<br /> "Interim Narrative Standard",is the minimum of
<br /> Table 1-Table 4 of The Basic Standards for
<br /> I *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 /> provided in units of exposure,millirems per year
<br /> I
<br /> I
<br /> 1
<br /> J GOLDER 10/14
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