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<br />P -j
<br />u
<br />11
<br />July 2015
<br />Table 2: Summary of Monitoring Results for MW -2
<br />Date
<br />Benchmark
<br />Level
<br />Benchmark Basis
<br />2/18/2014
<br />5/21/2014
<br />8/27/2014
<br />11/11/2014
<br />2/18/2015
<br />5/27/2015
<br />Metals
<br />Arsenic, Dissolved (mg/L
<br />0.15
<br />Statistical Limit
<br />0.004 B
<br />0.006
<br />NA
<br />NA
<br />NA
<br />NA
<br />Barium, Dissolved (mg/L)
<br />2.0
<br />Regulatory Limit
<br />1.74
<br />2.28
<br />2.57
<br />1.71
<br />2.03
<br />2.65
<br />Boron, Dissolved (mg/L)
<br />0.75
<br />Statistical Limit
<br />0.70
<br />0.75
<br />0.75
<br />0.74
<br />0.73
<br />0.72
<br />Chromium, Dissolved (mg/L
<br />0.3
<br />Statistical Limit
<br />< 0.01 U
<br />< 0.01 U
<br />NA
<br />NA
<br />NA
<br />NA
<br />Copper, Dissolved (mg/L
<br />0.3
<br />Statistical Limit
<br />< 0.05 U
<br />< 0.05 U
<br />NA
<br />NA
<br />NA
<br />NA
<br />Iron, Dissolved (mg/L
<br />0.71
<br />Statistical Limit
<br />1.51
<br />2.5
<br />1.16
<br />0.82
<br />0.38
<br />0.6
<br />Lead, Dissolved (mg/L
<br />0.05
<br />Requlatory Limit
<br />< 0.003 U
<br />< 0.003 U
<br />NA
<br />NA
<br />NA
<br />NA
<br />Lithium, Dissolved (mg/L
<br />2.5
<br />Statistical Limit
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />Manganese, Dissolved (mg/1-)
<br />0.49
<br />Statistical Limit
<br />0.099
<br />0.097
<br />0.105
<br />0.103
<br />0.075
<br />0.05 B
<br />Selenium, Dissolved (mg/L
<br />0.02
<br />Statistical Limit
<br />< 0.001 U
<br />0.0007 B
<br />NA
<br />NA
<br />NA
<br />NA
<br />Thallium, Dissolved (mg/L
<br />0.01
<br />Statistical Limit
<br />< 0.003 U
<br />< 0.003 U
<br />NA
<br />NA
<br />NA
<br />NA
<br />Uranium, Dissolved (mg/L
<br />0.03
<br />Statistical Limit
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />Zinc, Dissolved (mg/L)
<br />2.0
<br />Statistical Limit
<br />< 0.05 U
<br />< 0.05 U
<br />NA
<br />NA
<br />NA
<br />NA
<br />Other
<br />Chloride (mg/L
<br />3,640
<br />Statistical Limit
<br />3,180
<br />3,240
<br />2,930
<br />2,980
<br />2,990
<br />3,150
<br />Fluoride (mg/L)
<br />2.1
<br />Statistical Limit
<br />1.5
<br />1.48
<br />NA
<br />NA
<br />NA
<br />NA
<br />Nitrate as N (mg/L
<br />10
<br />Statistical Limit
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />Nitrite as N (mg/L
<br />1.0
<br />Statistical Limit
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />Nitrate+Nitrite as N (mg/L)
<br />10
<br />Statistical Limit
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />Lab pH (s.u)
<br />7.4-8.8
<br />Statistical Limit
<br />8.0 H
<br />8.0 H
<br />8.0 H
<br />8.3 H
<br />8.0 H
<br />8.0 H
<br />Total Dissolved Solids, filterable residue (mg/L
<br />6,971
<br />Regulatory Limit
<br />5,720
<br />6,040 H
<br />5,730
<br />6,180
<br />6,230
<br />6,100
<br />Sulfate (mg/L)
<br />250
<br />Regulatory Limit
<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 />Regulatory Limit
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />Gross Beta Ci/L
<br />none
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />Supplementary Analytes Not Historically analyzed
<br />Bicarbonate as CaCO3 (mg/L
<br />none
<br />1,060
<br />1,100
<br />1,080
<br />1,100
<br />NA
<br />1,070
<br />Carbonate as CaCO3 (mg/L
<br />none
<br />< 20 U
<br />< 20 U
<br />< 20 U
<br />< 20 U
<br />NA
<br />< 20 U
<br />Calcium, Dissolved (mg/L
<br />none
<br />17.6
<br />18.2
<br />17.9
<br />17.4
<br />17.5
<br />17.3
<br />Magnesium, Dissolved (mg/L
<br />none
<br />7.3
<br />6.9
<br />6.6
<br />7.4
<br />7.4
<br />7
<br />Potassium, Dissolved (mg/L
<br />none
<br />6.2
<br />6.5
<br />6.1
<br />6
<br />6.4
<br />7
<br />Sodium, Dissolved (mg/L
<br />none
<br />2,440
<br />2,440
<br />2,330
<br />2,260
<br />2,390
<br />2,270
<br />Notes:
<br />B = Estimated value, less than the practical quantitation limit for that analyte, but greater than the
<br />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
<br />Groundwater Monitoring Event near the Cement Kiln Dust Disposal Area A2 at the Boettcher
<br />Limestone Quarry, La Porte Colorado (January 6)
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<br />Ill Ill 520788\0110\BoettcherGWSamp 2D 2015_Dtt-OBJul15\Tables\Tables 1-7 DataRequest_Tables 1-7.xlsxMW-2 Page 2 of 2Golder
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