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July 2018
<br />Table 2: Summary of Monitoring Results for MW -2
<br />Date
<br />Interim Narrative
<br />Standard
<br />9/27/2010
<br />3/31/2011
<br />6/28/2011
<br />8/31/2011
<br />11/17/2011
<br />3/27/2012
<br />6/27/2012
<br />9/13/2012
<br />11/13/2012
<br />3/19/2013
<br />5/28/2013
<br />8/26/2013
<br />11/14/2013
<br />Metals
<br />Arsenic, Dissolved m /L)
<br />0.01
<br />0.036
<br />0.021
<br />0.03
<br />0.036
<br />< 0.01 U
<br />< 0.01 U
<br />< 0.01 U
<br />< 0.005 U
<br />0 001 B
<br />0.002 B
<br />0.001 B
<br />0.002 B
<br />0.001 B
<br />Barium, Dissolved (mg/L)
<br />2
<br />2.09
<br />1.33
<br />1.09
<br />0.96
<br />1 09
<br />1.42
<br />1.55
<br />172
<br />1.26
<br />1.3
<br />1.07
<br />1.23
<br />1.22
<br />Boron, Dissolved (mg/L)
<br />0.75
<br />0.7
<br />0.64
<br />0.69
<br />0.78
<br />0.64
<br />0.73
<br />0.72
<br />070
<br />0.79
<br />0.71
<br />0.76
<br />0.70
<br />0.74
<br />Chromium,Dissolved (mg/L
<br />0.1
<br /><0.01 U
<br /><0.01 U
<br /><0.01 U
<br /><001 U
<br /><0.01 U
<br /><0.01 U
<br /><001 U
<br /><0.01 U
<br /><0.01 U
<br /><0.01 U
<br /><0.01 U
<br /><0.01 U
<br /><0.01 U
<br />Copper, Dissolved (m /L)
<br />0.2
<br />< 0.3 U
<br /><0.3 U
<br />< 0.05 U
<br /><0.3 U
<br /><0.3 U
<br />< 0.05 U
<br /><0.3 U
<br />< 0.3 U
<br />< 0.3 U
<br />< 0 05 U
<br />< 0 3 U
<br /><0.3 U
<br />< 0.05 U
<br />Iron, Dissolved (mg/L
<br />0.3
<br />< 0.3 U
<br />0.1 B
<br />0.15
<br /><0.3 U
<br />0.3 B
<br />0.91
<br />0.8
<br />0.7
<br />0.16
<br />1.1
<br />0.2 B
<br />0.9
<br />1.32
<br />Lead, Dissolved (mg/L
<br />0.05
<br />< 0.003 U
<br />< 0.003 U
<br />0.0011 B
<br />0.0006 B
<br />< 0.003 U
<br />< 0 003 U
<br />< 0.003 U
<br />< 0 003 U
<br />< 0.003 U
<br />< 0.003 U
<br />< 0.003 U
<br />< 0.003 U
<br />< 0 003 U
<br />Lithium, Dissolved (mg/L
<br />2.5
<br />1.3
<br />1.2
<br />1.12
<br />1.1
<br />1.1
<br />1.16
<br />1.2
<br />1.2
<br />1.36
<br />NA
<br />NA
<br />NA
<br />NA
<br />Manganese, Dissolved (mg/L
<br />0.05
<br />0.08 B
<br />0.12
<br />0.139
<br />0.1
<br />0.12
<br />0.102
<br />0.06 B
<br />0.06 B
<br />0.114
<br />0.121
<br />0.09
<br />0.11
<br />0.1271 1
<br />Selenium, Dissolved (mg/L
<br />002
<br />0.0006 B
<br />0.0015
<br />0.0006 B
<br />< 0 001 U
<br />< 0.001 U
<br />< 0 001 U
<br />< 0.001 U
<br />00008 B
<br />0.0007 B
<br />0.0011
<br />0.0032
<br />< 0.001 U
<br />0.00061B
<br />Thallium, Dissolved (mg/L
<br />0.002
<br />< 0.003 U
<br />0.0007 B
<br />< 0.003 U
<br />< 0 003 U
<br />< 0.003 U
<br />< 0.003 U
<br />< 0.003 U
<br />< 0.003 U
<br />< 0.003 U
<br />< 0.003 U
<br />< 0 003 U
<br />< 0.003 U
<br />< 0.003 U
<br />Uranium, Dissolved (mg/L
<br />0.0168-0.03
<br />0.0048
<br />0.0033
<br />0 0025 B
<br />< 0 003 U
<br />0.0011 B
<br />0 0009 B
<br />0.0012 B
<br />00012 B
<br />0.0012 B
<br />NA
<br />NA
<br />NA
<br />NA
<br />Zinc, Dissolved (mg/L)
<br />2
<br /><0.3 U
<br /><0.3 U
<br />< 0.05 U
<br /><0.3 U
<br /><0.3 U
<br />< 0.05 U
<br /><0.3 U
<br />< 0.3 U
<br />< 0.3 U
<br />< 0.05 U
<br />< 0.3 U
<br />< 0.3 U
<br />< 0.05 U
<br />Other
<br />Chloride (mg/L
<br />250
<br />3,050
<br />3,100
<br />3,090
<br />3,240
<br />3,017
<br />3,052
<br />3,079
<br />3,188
<br />2,968
<br />3,227
<br />3,220
<br />2,960
<br />3,080
<br />Fluoride (mg/L)
<br />2
<br />1.7
<br />15
<br />1.5
<br />1.4
<br />1.6
<br />1.5
<br />16
<br />1.5
<br />1.7
<br />1.7
<br />16
<br />16
<br />1.5
<br />Nitrate as N (mg/L
<br />10
<br />0.14
<br />007 B
<br />0.06 B
<br />0.03 B
<br />< 0 1 U
<br />0.04 B
<br />004 B
<br />0.03 B
<br />0.04 B
<br />NA
<br />NA
<br />NA
<br />NA
<br />Nitrite as N (mg/L
<br />1
<br />< 0.05 U
<br /><005 U
<br />< 0.05 U
<br />< 0.05 U
<br />< 0.05 U
<br />< 0.05 U
<br />< 0.05 U
<br />< 0.05 U
<br />< 0.05 U
<br />NA
<br />NA
<br />NA
<br />NA
<br />Nitrate+Nitnte as N (mg/L)
<br />10
<br />0.14
<br />007 B
<br />0.06 B
<br />0.03 B
<br />< 0.1 U
<br />0.04 B
<br />0.04 B
<br />0.03 B
<br />0.04 B
<br />NA
<br />NA
<br />NA
<br />NA
<br />Lab pHs.0
<br />6.5-8.5
<br />8.6H
<br />8.2H
<br />8.4H
<br />8.3H
<br />82H
<br />8.3H
<br />83H
<br />8.6H
<br />8.3H
<br />8.3H
<br />8 3 H
<br />8.2H
<br />8.1H
<br />Total Dissolved Solids, filterable residue (mg/L
<br />7084"
<br />6,270
<br />6,390
<br />6,350
<br />6,320
<br />6,140
<br />6,340
<br />6,120
<br />1 6,270
<br />6,180
<br />6,300
<br />6,400
<br />6,210 H
<br />6,1507-
<br />,150HSulfate
<br />Sulfate(mg/L)
<br />250<
<br />300 U
<br />60 B
<br />90 B
<br />< 100 U
<br /><250 U
<br /><250 U
<br />< 250 U
<br />< 250 U
<br />< 250 U
<br /><250 U
<br />< 250 U
<br />< 250 U
<br />< 250 U
<br />Gross Alpha Ci/L
<br />15
<br />15 t26
<br />9.8 t25
<br />18 t24
<br />0 t26
<br />38 t38
<br />-1.1 t21
<br />5.1 (t12)
<br />-6.2 t13
<br />-12 f21
<br />NA
<br />NA
<br />NA
<br />NA
<br />Gross Beta Ci/L
<br />none
<br />4 5 t30
<br />42 t31
<br />12 t29
<br />0 t27
<br />73 t44
<br />8.5 t29
<br />82 t30
<br />21 t26
<br />11 t28
<br />NA
<br />NA
<br />NA
<br />NA
<br />Supplementary Analytes Not Historical) anal
<br />ed
<br />Bicarbonate as CaCO3 (m /L)
<br />none
<br />993
<br />965
<br />978
<br />953
<br />914
<br />995
<br />968
<br />964
<br />978
<br />955
<br />963
<br />979
<br />1,020
<br />Carbonate as CaCO3 (mg/L
<br />none
<br />108
<br /><20 U
<br />37
<br />22
<br />57
<br />< 20 U
<br />21
<br /><20 U
<br />23
<br />29
<br />22
<br /><20 U
<br />< 20 U
<br />Calcium, Dissolved m /L)
<br />none
<br />14
<br />14
<br />14.4
<br />16
<br />15
<br />155
<br />14
<br />16
<br />16.3
<br />15.1
<br />18
<br />17
<br />16.9
<br />Magnesium, Dissolved (mg/L
<br />none
<br />8
<br />8
<br />7.8
<br />7
<br />7
<br />7.4
<br />8
<br />8
<br />8
<br />75
<br />8
<br />7
<br />7.4
<br />Potassium, Dissolved (mg/L
<br />none
<br />7 B
<br />88
<br />7.4
<br />4 B
<br />6 B
<br />6.6
<br />7 B
<br />7 B
<br />10 8 B
<br />7.0
<br />7
<br />6 B
<br />6.1
<br />Sodium, Dissolved (mg/L
<br />none
<br />2,480
<br />2,430
<br />1 2,470 1
<br />2,410
<br />2,260
<br />2,410
<br />2,420
<br />2,420
<br />2,310
<br />2,550
<br />2,500
<br />2,540
<br />2,490
<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
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