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<br />DESCRIPTIVE STATISTICS GROUND WATER WELL 20.8 <br />JULY 1, 1999 -MARCH 31, 2000 <br /> <br />Parameter m /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 9 9 0.03 0.03 0.030 0.000 <br />Antimon ,dissolved M200-8 ICP-MS 9 8 0.0025 0.00015 0.001 0.001 <br />Arsenic, dissolved M200 8 ICP-MS 9 8 0.015 0.0005 0.004 0.004 <br />Barium, dissolved M200~7 ICP 9 0 0.543 0.298 0.422 0.095 <br />Be Ilium, dissolved M200~8 ICP~MS 9 8 0.0025 0.00025 0.0007 0.0007 <br />Boron, dissolved M200-7 ICP 9 0 0.42 0.305 0.371 0.049 <br />Cadmium, dissolved M200-8 ICP-MS 9 1 0.0137 0.0005 0.0057 0.0040 <br />Calcium, dissolved M200 7 ICP 9 0 26.5 19.45 24.5 2.2 <br />Chromium, dissolved M200~8 ICP~MS 9 2 0.111 0.00025 0.014 0.036 <br />Cobalt, dissolved M200 8 ICP~MS 9 5 0.002 0.00015 0.001 0.001 <br />Copper, dissolved M200 8 ICP-MS 9 2 0.25 0.0015 0.043 0.082 <br />Iron, dissolved M200.8 ICP~MS 9 0 0.69 0.052 0.357 0.175 <br />Lead, dissolved M200~8 ICP MS 9 7 0.0955 0.0001 0.011 0.032 <br />Lithium, dissolved M200-7 ICP 9 0 0.22 0.1 0.181 0.037 <br />Magnesium, dissolved M200~7 ICP 9 0 59.9 45.45 55.9 4.3 <br />Man anese, dissolved M200~8 ICP~MS 9 0 0.144 0.011 0.036 0.041 <br />Mercu ,dissolved M200~8 ICP~MS 9 9 0.001 0.0001 0.0005 0.0003 <br />Mol bdenum, dissolved M200-8 ICP-MS 9 1 0.0013 0.0004 0.001 0.000 <br />Nickel, dissolved M200 8 ICP~MS 9 2 0.006 0.001 0.003 0.002 <br />Potassium, dissolved M200~7 ICP 9 0 1.5 0.3 1.2 0.4 <br />Selenium, dissolved sMaSOO se c, AA Hytlride 9 9 0.003 0.0005 0.002 0.001 <br />Silica, dissolved M200-7 ICP 9 0 29.3 21.8 26.0 2.0 <br />Silver, dissolved M200~8 ICP MS 9 1 0.0015 0.0005 0.0011 0.0003 <br />Sodium, dissolved M200~7 ICP 9 0 1290 1020 1171.0 107.0 <br />Strontium, dissolved M200-7 ICP 9 0 5.72 4.445 5.158 0.441 <br />Thallium, dissolved M200-8 ICP-MS 9 8 0.0005 0.0001 0.0002 0.0001 <br />Uranium, dissolved M200 8 1CP MS 9 1 0.0008 0.00038 0.0005 0.0001 <br />Vanadium, dissolved M200 7 ICP 9 8 0.025 0.005 0.0075 0.0066 <br />Zinc, dissolved M200-81CP-MS 9 8 0.06 0.005 0.014 0.018 <br />Bicarb as CaC03 M2320B 9 0 3360 2280 2693 340 <br />Carbonate as CaC03 M2320B 9 8 70 1 16 21 <br />H droxide as CaC03 M2320B 9 9 10 1 9 3 <br />Total Alkalinity M2320B 9 0 3360 2310 2701 330 <br /> <br />Analyte concentrations reported below the detection limit are set equal to one half the detection limit for all statistical calculations. <br />