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<br /> <br />DESCRIPTIVE STATISTICS GROUND WATER WELL 20-1 <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 4 4 1 0.3 0.825 0.350 <br />Antimon ,dissolved M200~8 ICP-MS 4 4 0.005 0.0025 0.003 0.001 <br />Arsenic, dissolved M200.8 ICP-MS 4 3 0.3 0.025 0.100 0.134 <br />Barium, dissolved M200.7 ICP 4 0 6.93 3.5 4.433 1.667 <br />Be Ilium, dissolved M200.8 ICP-MS 4 3 0.03 0.0025 0.0119 0.0125 <br />Boron, dissolved M200-) ICP 4 0 13.8 9.1 11.325 2.326 <br />Cadmium, dissolved M200.8 ICP-MS 4 2 0.021 0.005 0.0115 0.0068 <br />Calcium, dissolved M200-7 ICP 4 2 10 5 6.8 2.4 <br />Chromium, dissolved M200-8 ICP-MS 4 0 0.72 0.32 0.473 0.186 <br />Cobalt, dissolved M200 8 ICP~MS 4 4 0.005 0.0015 0.003 0.001 <br />Copper, dissolved M200~8 ICP~MS 4 3 0.8 0.025 0.231 0.379 <br />Iron, dissolved M200.81CP MS 4 0 2.7 1.9 2.350 0.370 <br />Lead, dissolved M200-81CP-MS 4 0 0.11 0.01 0.053 0.044 <br />Lithium, dissolved M200-7 ICP 4 0 4 2 3.000 0.816 <br />Magnesium, dissolved M200~7 ICP 4 3 10 2 5.5 3.3 <br />Man anese, dissolved M200-8 ICP-MS 4 1 0.056 0.01 0.034 0.019 <br />Mercury, dissolved M200-8 ICP-MS 4 4 0.01 0.0001 0.0028 0.0048 <br />Mal bdenum, dissolved M200.81CP-MS 4 0 0.172 0.01 0.111 0.074 <br />Nickel, dissolved M2008ICP-MS 4 3 0.02 0.01 0.015 0.006 <br />Potassium, dissolved M200•~ ICP 4 0 160 90 111.0 32.9 <br />Selenium, dissolved sM35oo se c, AA Hydride 4 4 0.003 0.0005 0.002 0.001 <br />Silica, dissolved M200.7 ICP 4 0 50 30 35.8 9.6 <br />Silver, dissolved M200 8 ICP MS 4 3 0.01 0.0025 0.0056 0.0031 <br />Sodium, dissolved M200-7 ICP 4 0 29900 21000 24225.0 4020.3 <br />Strontium, dissolved M200-7 ICP 4 0 1.1 0.7 0.825 0.189 <br />Thallium, dissolved M200.8 ICP~MS 4 4 0.005 0.0015 0.0029 0.0015 <br />Uranium, dissolved M200 8 ICP MS 4 4 0.005 0.0015 0.0029 0.0015 <br />Vanadium, dissolved M200.7 ICP 4 3 0.3 0.05 0.1625 0.1031 <br />Zinc, dissolved M200 8 ICP~MS 4 1 16.4 0.2 7.850 6.941 <br />Bicarb as CaC03 M2320B 4 0 34200 33300 33800 374 <br />Carbonate as CaC03 M2320B 4 3 1990 1 548 963 <br />H droxide as CaC03 M2320B 4 4 100 1 75 50 <br />Total Alkalinity M2320B 4 0 36200 33300 34300 1294 <br /> <br />Analyte concentrations reported below the detection limit are set equal to one half the detection limit for all statistical calculations. <br />