2014-07-11_HYDROLOGY - M1977344

• Permit No: M1977344
• IBM Index Class Name: Hydrology
• Doc Date: 7/11/2014
• Doc Name: March 2014 Groundwater Monitoring Report
• From: ARCADIS
• To: DRMS
• Permit Index Doc Type: Hydrology Report
• Media Type: D
• Archive: No

Table E-2
Groundwater Quality Data for Monitoring Wells MW-6 through MW-12 -2003 through 2004
Holcim (US) Inc.
Florence, CO
Anal to 8/7/2003 -8/8/2003 1/16/2004 4/9/2004 7/9/2004
Field Parameters MCL MW-6 MW4 DUP MW-7 MW-8 MW-9 MW-10 MW-11 MW-12 MW-10 MW-10 MW-10
pH std. units) 6.5-8.5b 6.9 6.9 7.2' 7.1 7.41 1 7.4 7.5i1 7.2I 6.6 7.7 6.7i
Conductivity ps/cm NA 3430 3430 2260 2470; 2620 2950 3070 3450 46501 4000 3530
Temperature °C) NA 21 21 18 18 18 21 23 22 11I 13 22
Laboratory Results MCL
pH std. units 6.5-8.5b 6.8 6.8 7.0 7.2 7.1 ' 7.1 7.2 7.01 6.8 6.8 7.1
Conductivity ps/cm NA 3900 J 3800 J 3200 J 31001J 3400 J 3200 J 3300 J 3800 J 3800 J 4200, 3900 J
Total Dissolved Solids 1.5 x bkg 4400 4400 3200 i 33001 3600 3300 3500 4200' 4000 3800 1 J 3400
Chloride 250 37.0 J 36 J 25 J 26.0 J 28.0 27 J 28 J 37 J 22 J 19'1 27 J
Sulfate 250 2500 J,Q 2300 J,Q 1800,J,Q 1800 J,Q 2100 J,Q 1800,J,Q 21001J,Q 2400 J,Q 2300 J,Q 2200 Q 2000 J,Q
Alkalinity NA 5 U 5 U 5'U 51 U 5 U 5,U 51 U 51 U 5.0 U 5.0 U 5.0 U
Hardness, as CaCO3 NA 2800 2800 1900 1900 2300 1900 1900 2500 2800 2400 2000
Fluoride 2.0° 0.57'J 0.62 J 0.89 J 1.2 J 1.5 J 0.9 J 1.1 J 4.4',J 0.73 0.68 J 0.74 J
Ammonia NA 0.1 U 0.1 U 0.31 0.74 0.60 0.56 0.37 0.28 0.10 U 0.10 U 0.101
Nitrate as N 10.Oa 2.9 3.1 0.1 'U 0.005 B 0.015 B 6.8 0.063I 0.002 U 100; 84 28 Q
Nitrite 3.3e NA NA NA I NA NA NA NA NA 0.1511 0.58 Q 0.041
Potassium NA 16'i 16 11 18.9 9.1 22 26 26 281, 26' 23
Sodium NA 130 130 170 170 130 180I 200 200 1301J 130 210 J
Arsenic 0.05a 0.006 0.0058 0.0017 B 0.0016,B 0.005 U 0.0048 B 0.0035.B 0.0035 B 0.016 0.013 0.0028'B
Antimony 0.006a 0.002'U 0.000082 B 0.00005 B 0.0012 B 0.00063 B 0.000097 B 0.0011 B 0.0029' 0.00037 B, J 0.00033 B 0.00021 B
Barium 2.0a 0.011 J 0.013 J 0.034 J 0.024 J 0.017 J 0.02 J 0.048',J 0.099 J 0.028 0.026 J 0.016'
Beryllium 0.004a 0.005 U 0.005 U 0.005 U 0.005 U 0.005 U 0.005 U 0.005 U 0.005 'U 0.0050 U 0.0050 U 0.00066 B
Cadmium 0.005a 0.005 U 0.005 U 0.005 U 0.005 U 0.005 U 0.005 U 0.005 U 0.00036 B 0.0050 U 0.00501 U 0.0050 U
Chromium 0.01° 0.01 'iU 0.01 U 0.01 U 0.01 U 0.01 U 0.01 'U 0.012' 0.017' 0.010U 0.010'U 0.010 U
Lead 0.05a 0.0002 B 0.0002 B 0.001121 0.00043 B 0.00018'B 0.00041 B 0.0015 0.0052 0.00099 B 0.00031 B 0.00013 B
Mercury 0.002a 0.0002 U 0.0002 U 0.0002 1 U 0.0002 U 0.0002'U 0.0002 U 0.0002'U 0.0002 U 0.0002'1 U 0.0002 U 0.0002 U
Nickel 0.1a 0.054' 0.054 0.04 1 U 0.019 B 0.013 B 0.013 B 0.032'B 0.0711 0.0171 B 0.010 B 0.018 1 B
Selenium 0.02° 0.32 0.32 0.0015 B 0.0055 0.002 B 0.21 0.0211 0.0086 0.77 0.76 0.20
Silver 0.05a 0.001 U 0.001 U 0.000019'B 0.001 U 0.001 U 0.001 U 0.00003 B 0.000078 B 0.000020 B 0.000036 B 0.0010 U
Thallium 0.002a 0.00032 B,J 0.00032 B,J 0.0011 0.000076 B,J 0.000032 B,J 0.000074 B,J 0.000088 B,J 0.00015 B,J 0.00016 B 0.00016 BJ 0.00017 B
Vanadium 0.1 c 0.005 U 0.005 U 0.003 B 0.005 U 0.005'U 0.005 U 0.003 B 0.011 0.0022 B 0.0050'U 0.0050 U
Zinc 2.0° 0.0271 0.02 0.0087 B 0.0083'B 0.0058 I B 0.007300 B 0.016 0.027 0.016 0.011 0.0065 B,J
Aluminum 5.0° 0.17'J 0.18 J 1.1 J 0.2J 0.078,B,J 0.25 J 2.6',J 111J 0.21IJ 0.12 0.046iB,J
Iron 0.3 0.061 B 0.089 B 4.51, 1.7 0.32 1.0 2.1 8.50I 0.35: 0.19, 0.021 B
Manganese 0.05D 0.0046 B 0.0052 B 0.31' 0.29 0.61 0.18 0.21 1.1 0.082 0.053 0.12
Magnesium NA 4001 400 190 180 250 2101, 200 330! 290', 260'i 210'
Calcium NA 480 480 440 450 500 430 430 470 650 540 L 450 J
Note:
U-indicates that the analyte was analyzed for but not detected. Detection limit is numeric
value shown. a)MCL source:Table 1 Human Health Standards, Regulation 41.
Q-indicates elevated reporting limit due to high analyte level. b)MCL source:Table 2 Secondary Drinking Water Standards, Regulation 41.
All units are in mg/L unless noted otherwise. c)MCL source:Table 3 Agricultural Standards for Groundwater, Regulation 41.
NA indicates not available. d)MCL for nitrate is 10.0 mg/L as N
Bolded values=MCL exceeded, italicized values=reporting limit greater than MCL. e)MCL for nitrite is 1.0 mg/L as N
B-Estimated result. Result is less than the reporting limit. J-Method blank contamination.The associated method blank contains the target
analyte at a reportable level.
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