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Table E -2 <br />Groundwater Quality Data for Monitoring Wells MW -6 through MW -12 - 2003 through 2004 <br />Holcim (US) Inc. <br />Florence, CO <br />Anal to <br />8/7/2003 - 818/2003 <br />1/16/2004 <br />4/9/2004 <br />7/9/2004 <br />Field Parameters <br />MCL <br />MW -6 <br />MW -6 DUP <br />MW -7 <br />MW -8 <br />MW -9 <br />MW -10 <br />MW -11 <br />MW -12 <br />MW -10 <br />MW -10 <br />MW -10 <br />pH (std. units) <br />6.5 -8.5b <br />6.9 <br />6.9 <br />7.2 <br />7.1 <br />7.4 <br />7.4 <br />7.51 <br />7.2 <br />6.6 <br />7.71 <br />6.7 <br />Conductivity (ps /cm) <br />NA <br />3430 <br />3430 <br />2260 <br />2470 <br />2620' <br />2950 <br />307011 <br />3450 <br />4650 <br />40001 <br />3530 <br />Temperature ( °C) <br />NA <br />21 <br />211 <br />18 <br />18 <br />18 <br />21 <br />23 <br />221 <br />11 <br />131 <br />22 <br />Laboratory Results <br />MCL <br />pH (std. units) <br />6.5 -8.5b <br />6.8 <br />6.8 <br />7.0 <br />7.2 <br />7.1 <br />7.1 <br />7.2 <br />7.0 <br />6.8 <br />6.8 <br />7.1 <br />Conductivity (ps /cm) <br />NA <br />3900 <br />J <br />3800 J <br />3200 <br />J <br />3100 <br />J <br />3400 <br />J <br />3200 <br />J <br />3300 <br />J <br />3800 <br />J <br />3800 <br />J <br />4200 <br />3900 <br />J <br />Total Dissolved Solids <br />1.5 x bkg <br />4400 <br />4400 <br />3200 <br />3300 <br />3600 <br />3300 <br />3500 <br />4200 <br />4000 <br />3800 <br />J <br />3400 <br />Chloride <br />250 <br />37.0 <br />J <br />36 J <br />25 <br />J <br />26.0 <br />J <br />28.0 <br />27 <br />J <br />28 <br />J <br />37 <br />J <br />22 <br />J <br />19 <br />J <br />27,J <br />Sulfate <br />250 <br />2500 <br />J,Q <br />2300 J,Q <br />1800 <br />J,Q <br />1800 <br />J,Q <br />2100 <br />J,Q <br />1800 <br />J,Q <br />2100 <br />J,Q <br />2400 <br />J,Q <br />2300 <br />J,Q <br />2200 <br />Q <br />2000 J,Q <br />Alkalinity <br />NA <br />5U <br />5U <br />5U <br />5U <br />5U <br />5U <br />5U <br />5U <br />5.0U <br />5.0U <br />5.0U <br />Hardness, as CaCO3 <br />NA <br />2800 <br />2800 <br />1900 <br />1900 <br />2300 <br />1900 <br />1900 <br />2500 <br />2800 <br />2400 <br />2000 <br />Fluoride <br />2.0c <br />0.57 <br />J <br />0.62 J <br />0.89 <br />J <br />1.2 <br />J <br />1.5 <br />J <br />0.9 <br />J <br />1.1 <br />J <br />4.4 <br />J <br />0.73 <br />0.68 <br />J <br />0.74 <br />J <br />Ammonia <br />NA <br />0.1 <br />U <br />0.1 U <br />0.31 <br />0.74 <br />0.60 <br />0.56 <br />0.37 <br />0.28 <br />0.10 <br />U <br />0.10 <br />U <br />0.10 <br />Nitrate as N <br />10.0a <br />2.9 <br />3.1 <br />0.1,U <br />0.005 <br />B <br />0.015 <br />B <br />6.8 <br />0.063 <br />0.002 <br />U <br />100 <br />84 <br />28 <br />Q <br />Nitrite <br />3.3e <br />NA <br />NA <br />NA <br />NA. <br />NA <br />NA <br />NA <br />0.15 <br />0.58 <br />Q <br />0.041 <br />Potassium <br />NA <br />16 <br />16 <br />11 <br />8.9 <br />9.1 <br />22 <br />26 <br />26 <br />28 <br />26 <br />23 <br />Sodium <br />NA <br />130 <br />130 <br />170 <br />170 <br />130 <br />180 <br />200 <br />200 <br />130 <br />J <br />130 <br />210 <br />J <br />Arsenic <br />0.05a <br />0.006 <br />0.0058 <br />0.0017 <br />B <br />0.0016 <br />B <br />0.005 <br />U <br />0.0048 <br />B <br />0.0035 <br />B <br />0.0035 <br />.113 <br />0.016 <br />0.013 <br />0.0028 <br />B <br />Antimony <br />0.006a <br />0.002 <br />U <br />0.000082 B <br />0.00005 <br />B <br />0.00121 <br />B <br />0.00063 <br />B <br />0.000097 <br />B <br />0.0011 <br />B <br />0.0029 <br />0.00037 <br />B, J <br />0.00033 <br />B <br />0.00021 <br />B <br />Barium <br />2.05 <br />0.011 <br />J <br />0.013 J <br />0.034 <br />J <br />0.024 <br />J <br />0.017 <br />J <br />0.02 <br />J <br />0.048 <br />J <br />0.099 <br />J <br />0.028 <br />0.026 <br />J <br />0.016 <br />Beryllium <br />0.004a <br />0.005 <br />U <br />0.005 U <br />0.005 <br />U <br />0.005 <br />U <br />0.005 <br />U <br />0.005 <br />U <br />0.005 <br />U <br />0.005 <br />U <br />0.0050 <br />U <br />0.0050 <br />U <br />0.00066 <br />B <br />Cadmium <br />0.0055 <br />0.005 <br />U <br />0.005 U <br />0.005 <br />U <br />0.005 <br />U <br />0.005 <br />U <br />0.005 <br />U <br />0.005 <br />U <br />0.00036 <br />B <br />0.0050 <br />U <br />0.0050 <br />U <br />0.0050 <br />U <br />Chromium <br />0.01° <br />0.01U <br />0.01U <br />0.01U <br />0.01U <br />0.01U <br />0.01U <br />0.012 <br />0.017 <br />0.010U <br />0.010U <br />0.010U <br />Lead <br />0.05a <br />0.0002 <br />B <br />0.0002 B <br />0.0012 <br />0.00043 <br />B <br />0.00018 <br />B <br />0.00041 <br />B <br />0.0015 <br />0.0052 <br />0.00099 <br />B <br />0.00031 <br />B <br />0.00013 <br />B <br />Mercury <br />0.002a <br />0.0002 <br />U <br />0.0002 U <br />0.0002 <br />U <br />0.0002 <br />U <br />0.0002 U <br />0.0002 <br />U <br />0.0002 <br />U <br />0.0002 <br />U <br />0.0002 <br />U <br />0.0002 <br />U <br />0.0002 <br />U <br />Nickel <br />0.15 <br />0.054 <br />0.054 <br />0.04 <br />U <br />0.019 <br />B <br />0.013 <br />B <br />0.013 <br />B <br />0.032 <br />B <br />0.071 <br />0.017 <br />B <br />0.010 <br />B <br />0.018 <br />B <br />Selenium <br />0.02° <br />0.32 <br />0.32 <br />0.0015 <br />B <br />0.0055 <br />0.002 <br />B <br />0.21 <br />0.021 <br />0.0086 <br />0.77 <br />0.76 <br />0.20 <br />Silver <br />0.05a <br />0.001 <br />U <br />0.001 U <br />0.000019 <br />B <br />0.001 <br />U <br />0.001 <br />U <br />0.001 <br />U <br />0.00003 <br />B <br />0.000078 <br />B <br />0.000020 <br />B <br />0.000036 <br />B <br />0.0010 <br />U <br />Thallium <br />0.0028 <br />0.00032 <br />B,J <br />0.00032 B,J <br />0.001 <br />0.000076 <br />B,J <br />0.000032 <br />B,J <br />0.000074 <br />B,J <br />0.000088 <br />B,J <br />0.00015 <br />B,J <br />0.00016 <br />B <br />0.00016 <br />BJ <br />0.00017 <br />B <br />Vanadium <br />0.1` <br />0.005 <br />U <br />0.005 U <br />0.003 <br />B <br />0.005 <br />U <br />0.005 <br />U <br />0.005 <br />U <br />0.003 <br />B <br />0.011 <br />0.0022 <br />B <br />0.0050 <br />U <br />0.0050 <br />U <br />Zinc <br />2.Oe <br />0.027 <br />0.02 <br />0.0087 <br />B <br />0.0083 <br />B <br />0.0058 <br />B <br />0.007300 <br />B <br />0.016 <br />0.027 <br />0.016 <br />0.011 <br />0.0065 <br />B,J <br />Aluminum <br />5.0` <br />0.17 <br />J <br />0.18 J <br />1.1 <br />J <br />0.2 <br />J <br />0.078 <br />B,J <br />0.25 <br />J <br />2.6 <br />J <br />11 <br />J <br />0.21 <br />J <br />0.12 <br />0.046 <br />B,J <br />Iron <br />0.3 <br />0.061 <br />B <br />0.089 B <br />4.5 <br />1.7 <br />0.32 <br />1.0 <br />2.1 <br />8.50 <br />0.35 <br />0.19 <br />0.021 <br />B <br />Manganese <br />0.05 <br />0.0046 <br />B <br />0.0052 B <br />0.31 <br />0.29 <br />0.61 <br />0.18 <br />0.2 <br />1.1 <br />0.082 <br />0.053 <br />0.12 <br />Magnesium <br />NA <br />4001 <br />400 <br />1 190 <br />180 <br />250 <br />210 <br />200 <br />1 330 <br />1 2901 <br />260 <br />210 <br />Calcium <br />NA <br />1 4801 <br />1 480 <br />1 4401 <br />450 <br />500 <br />430 <br />430 <br />1 470 <br />6501 <br />540 <br />L <br />450 <br />J <br />Note: <br />U - indicates that the analyte was analyzed for but not detected. Detection limit is numeric <br />value shown. <br />Q - indicates elevated reporting limit due to high analyte level. <br />All units are in mg /L unless noted otherwise. <br />NA indicates not available. <br />Bolded values =MCL exceeded, italicized values= reporting limit greater than MCL. <br />B - Estimated result. Result is less than the reporting limit. <br />a) MCL source: Table 1 Human Health Standards, Regulation 41. <br />b) MCL source: Table 2 Secondary Drinking Water Standards, Regulation 41. <br />c) MCL source: Table 3 Agricultural Standards for Groundwater, Regulation 41. <br />d) MCL for nitrate is 10.0 mg /L as N <br />e) MCL for nitrite is 1.0 mg /L as N <br />J - Method blank contamination. The associated method blank contains the target <br />analyte at a reportable level. <br />Page 1 of 1 G: \AProject \255.10 - Holcim \GW Monitoring Report\March 2011\Appendix E \Historical GW Data.xls <br />