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~ i M <br />DESCRIPTIVE STATISTICS GROUND WATER WELL 28-1 <br />JULY 1, 1999 -APRIL 30, 2000 <br /> <br />Parameter (mg/I) EPA Method TOTAL <br />SAMPLES BELOW <br />DETECTION MAXIMUM <br />VALUE MINIMUM <br />VALUE <br />MEAN VALUE STANDARD <br />DEVIATION <br />Aluminum, dissolved M200-7 ICP 10 10 0.1 0.03 0.051 0.034 <br />Antimony, dissolved M200-8 ICP-MS t0 8 0.01 0.00015 0.002 0.003 <br />Arsenic, dissolved M200-8 ICP-MS t0 3 0.016 0.001 0.006 0.004 <br />Barium, dissolved M200-7 ICP t0 1 0.06 0.01 0.020 0.014 <br />Beryllium, dissolved M200-8 ICP-MS 10 10 0.0015 0.00005 0.0005 0.0004 <br />Boron, dissolved M200-71CP t0 0 0.72 0.52 0.599 0.064 <br />Cadmium, dissolved M200-8 ICP-MS 10 6 0.0015 0.00005 0.0007 0.0005 <br />Calcium, dissolved M200-7 ICP 10 0 77.5 52.7 67.4 8.5 <br />Chromium, dissolved M20o-e ICP-MS 10 0 0.011 0.0015 0.005 0.003 <br />Cobalt, dissolved M200-8 ICP-MS t0 0 0.0027 0.00135 0.002 0.000 <br />Copper, dissolved M200-8 ICP-MS 10 3 0.046 0.00125 0.018 0.015 <br />Iron, dissolved M200-6 ICP-MS 10 4 0.12 0.005 0.033 0.040 <br />Lead, dissolved M200-8 ICP-MS 10 9 0.0015 0.00005 0.001 0.000 <br />Lithium, dissolved M200-7 ICP 10 10 0.05 0.02 0.026 0.013 <br />Magnesium, dissolved M200-7 ICP 10 0 340 224 279.1 36.5 <br />Manganese, dissolved M200-8 ICP-MS 10 0 0.175 0.0382 0.074 0.039 <br />Mercury, dissolved M200-8 ICP-MS 10 10 0.001 0.0001 0.0005 0.0002 <br />Molybdenum, dissolved M200-6 ICP-MS 10 0 0.032 0.026 0.028 0.002 <br />Nickel, dissolved M200-8 ICP-MS 10 1 0.024 0.005 0.011 0.005 <br />Potassium, dissolved M200-7 ICP 10 0 4 2.9 3.5 0.4 <br />Selenium, dissolved SM3500-Se C, AA-Hytlride 10 9 0.003 0.0005 0.002 0.001 <br />Silica, dissolved M200-7 ICP 10 0 28 20.8 24.0 2.5 <br />Silver, dissolved M200-8 ICP-MS 10 9 0.00064 0.00005 0.0003 0.0002 <br />Sodium, dissolved M200-7 ICP 10 0 945 659 821.3 83.0 <br />Strontium, dissolved M200-7 ICP 10 0 7.14 4.66 5.763 0.755 <br />Thallium, dissolved M200-8 ICP-MS 10 10 0.0005 0.000025 0.0003 0.0002 <br />Uranium, dissolved M200-8 ICP-MS 10 1 0.0095 0.005 0.0065 0.0012 <br />Vanadium, dissolved M200-7 ICP t0 9 0.015 0.005 0.0085 0.0047 <br />Zinc, dissolved M200-8 ICP-MS 10 2 0.08 0.005 0.040 0.028 <br />Bicarb as CaC03 M23208 10 0 1130 985 1052 43 <br />Carbonate as CaC03 M2320B 10 10 10 1 7 4 <br />Hydroxide as CaC03 M23208 10 10 10 1 7 4 <br />Total Alkalinity M2320B 10 0 1130 985 1052 43 <br /> <br />Analyte concentrations reported below the detection limit are set equal to one half the detection limit for all statistical calculations. <br />