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<br />DESCRIPTIVE STATISTICS GROUND WATER WELL 20-8 <br />JULY 1, 1999 -JUNE 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 M2oo-7 ICP 12 12 0.03 0.03 0.030 0.000 <br />Antimony, dissolved M2oo-B ICP-MS 12 10 0.005 0.00015 0.001 0.001 <br />Arsenic, dissolved M200-8 ICP-MS 12 11 0.015 0.0005 0.003 0.004 <br />Barium, dissolved M200-7'ICP 12 0 0.543 0.193 0.417 0.113 <br />Beryllium, dissolved M2oo-8 ICP-MS 12 11 0.0025 0.00025 0.0006 0.0006 <br />Boron, dissolved M200-7 ICP 12 0 0.44 0.27 0.371 0.057 <br />Cadmium, dissolved M200-8 ICP-MS 12 1 0.0137 0.0005 0.0055 0.0039 <br />Calcium, dissolved M200-7 ICP 12 0 52.3 19.45 27.0 8.2 <br />Chromium, dissolved M200-8 ICP-MS 12 3 0.111 0.00025 0.011 0.032 <br />Cobalt, dissolved M2oo-8 ICP-MS 12 7 0.002 0.00015 0.000 0.001 <br />Copper, dissolved M200-8 ICP-MS 12 3 0.25 0.0015 0.034 0.071 <br />Iron, dissolved M200-8 ICP-MS 12 0 2.45 0.052 0.539 0.620 <br />Lead, dissolved M2oo-8 ICP-MS 12 9 0.0955 0.0001 0.008 0.027 <br />Lithium, dissolved M200-7 ICP 12 0 0.22 0.1 0.178 0.039 <br />Magnesium, dissolved M200-7 ICP 12 0 82.2 45.45 58.4 8.4 <br />Manganese, dissolved M200-8 ICP-MS 12 0 0.144 0.011 0.034 0.036 <br />Mercury, dissolved M2oo-8 ICP-MS 12 12 0.001 0.0001 0.0005 0.0003 <br />Molybdenum, dissolved M200-8 ICP-MS 12 1 0.0027 0.0004 0.001 0.001 <br />Nickel, dissolved M2oo-B ICP-MS 12 2 0.006 0.001 0.003 0.002 <br />Potassium, dissolved M200-7 ICP 12 0 1.6 0.3 1.3 0.3 <br />Selenium, dissolved sM3soo~se c. AA~Hytlnde 12 12 0.003 0.0005 0.002 0.001 <br />Silica, dissolved M200-7 ICP 12 0 37 21.8 27.1 3.6 <br />Silver, dissolved M200-8 ICP-MS 12 2 0.0015 0.00015 0.0009 0.0004 <br />Sodium, dissolved M200-7 ICP 12 0 1290 673 1145.2 178.3 <br />Strontium, dissolved M200-7 ICP 12 0 5.72 4.445 5.225 0.408 <br />Thallium, dissolved M200-8 ICP-MS 12 11 0.0005 0.0001 0.0002 0.0001 <br />Uranium, dissolved M200-B ICP-MS 12 2 0.0008 0.00015 0.0005 0.0002 <br />vanadium, dissolved M200-7 ICP 12 11 0.025 0.005 0.0069 0.0058 <br />Zinc, dissolved M200-ti ICP-MS 12 9 0.06 0.005 0.015 0.016 <br />Bicarb as CaC03 M23206 12 0 3360 1790 2592 391 <br />Carbonate as CaC03 M23206 12 10 195 1 28 56 <br />Hydroxide as CaC03 M23206 12 12 10 1 7 4 <br />Total Alkalinity M23206 12 0 3360 1790 2613 383 <br /> <br />Analyte concentrations reported below the detection limit are set equal to one half the detection limit for all statistical calculations. <br />