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April 2014
<br />Table 2: Summary of Monitoring Results for MW -2
<br />(Date
<br />Benchmark
<br />Level
<br />9/2712010
<br />3131/2011
<br />6/28/2011
<br />813112011
<br />11/17/2011
<br />3/27/2012
<br />6/27/2012
<br />9/13/2012
<br />11/1312012
<br />3/19/2013
<br />5/2812013
<br />8/26/2013
<br />11/14/2013
<br />2/18/2014
<br />Metals
<br />Arsenic, Dissolved (mg/L
<br />0.15
<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 />0.004 B
<br />Barium, Dissolved (mg /L)
<br />2.0
<br />2.09
<br />1.33
<br />1.09
<br />0.96
<br />1.09
<br />1.42
<br />1.55
<br />1.72
<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 />0.70
<br />0.79
<br />0.71
<br />0.76
<br />0.70
<br />0.74
<br />0.70
<br />Chromium, Dissolved (mg/L
<br />0.3
<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 />< 0.01 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 />< 0.01 U
<br />Copper, Dissolved (mg/L
<br />0.3
<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 />< 0.05 U
<br />Iron, Dissolved (mg/L
<br />0.71
<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 />1.51
<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 />< 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 />NA
<br />Manganese, Dissolved (mg/L
<br />0.49
<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 />0127
<br />0.099
<br />Selenium, Dissolved (mg/L
<br />0.02
<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 />0.0008 B
<br />0.0007 B
<br />0.0011
<br />0.0032
<br />< 0.001 U
<br />0.0006 B
<br />< 0.001 U
<br />Thallium, Dissolved (mg/L
<br />0.01
<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 />< 0.003 U
<br />Uranium, Dissolved (mg/L
<br />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
<br />0012 B
<br />0.0012 B
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />Zinc. Dissolved (mg /L)
<br />2.0
<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 />< 0.05 U
<br />Other
<br />Chloride (m /L )
<br />1640
<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 />3,180
<br />Fluoride (mg /L)
<br />2.1
<br />1.7
<br />1.5
<br />1.5
<br />1.4
<br />1.6
<br />1.5
<br />1.6
<br />1.5
<br />1.7
<br />1.7
<br />1.6
<br />1.6
<br />1.5
<br />1.5
<br />Nitrate as N (mg/L
<br />10
<br />0.14
<br />0.07 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 />NA
<br />Nitrite as N (mg/L
<br />1.0
<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 />< 0.05 U
<br />< 0.05 U
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />Nitrate +Nitrite as N (mg /L)
<br />10
<br />0.14
<br />0.07 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 />NA
<br />Lab pH (s.u)
<br />7.4 -8.8
<br />8.6H
<br />8.2H
<br />8.4H
<br />8.3H
<br />8.2H
<br />8.3H
<br />8.3H
<br />8.6H
<br />8.3H
<br />8.3H
<br />8.3H
<br />8.2H
<br />8.1 H
<br />8H
<br />Total Dissolved Solids, filterable residue m /L
<br />6,971
<br />6.270
<br />6.390
<br />6,350
<br />6,320
<br />6,140
<br />6.340
<br />6,120
<br />6,270
<br />6.180
<br />6,300
<br />6,400
<br />6,210 H
<br />6,150 H
<br />5,720
<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 />< 250 U
<br />Gross Alpha Ci /L
<br />15
<br />15 ±26
<br />9.8 ±25
<br />18 ±24
<br />0 ±26
<br />38 ±38 1.1 ±21
<br />5.1 ±12 6.2 ±13
<br />12 ±21
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />Gross Beta Ci /L
<br />none
<br />4.5 ±30
<br />42 ±31
<br />12 (±29) 9)
<br />0 ±27
<br />73 ±44 8.5 ±29
<br />82 ±30 21 ±26
<br />11 ±28
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />Supplementary Anal tes Not Historical/ analyzed)
<br />Bicarbonate as CaCO3 (mg/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 />1.060
<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 />< 20 U
<br />Calcium. Dissolved (mg/L
<br />none
<br />14
<br />14
<br />14.4
<br />16
<br />15
<br />15.5
<br />14
<br />16
<br />16.3
<br />15.1
<br />18
<br />17
<br />16.9
<br />17.6
<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 />8.0
<br />7.5
<br />8
<br />7
<br />7.4
<br />7.3
<br />Potassium, Dissolved (mg/L
<br />none
<br />7 B
<br />8 B
<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 />6.2
<br />Sodium, Dissolved (mg/L
<br />none
<br />2,480
<br />1 2,430
<br />1 2,470
<br />1 2,410
<br />2.260
<br />1 2,410
<br />1 ,420
<br />1 ,420
<br />1 2,310
<br />1 2,550
<br />1 2,500
<br />2,540
<br />2,490
<br />2,440
<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 />Values in Bold exceeded benchmark levels
<br />Determination of benchmark levels presented in Golder 2011, Results of the September 2010 Groundwater Monitoring Event near the Cement Kiln Dust Disposal Area A2 at the Boettcher Limestone Quarry, La Porte Colorado (January 6)
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