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• • <br />DESCRIPTNE STATISTICS GROUND WATER WELL 21.30 <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 M200-7 ICP 12 10 2.6 0.1 0.488 0.801 <br />Antimony, dissolved M200-8 ICP-MS 12 10 0.05 0.00025 0.009 0.015 <br />Arsenic, dissolved M200-8 ICP-MS t2 9 0.15 0.0025 0.030 0.051 <br />Barium, dissolved M200-7 ICP 12 0 4.66 1.44 4.122 0.874 <br />Beryllium, dissolved M200-8 ICP-MS 12 9 0.025 0.0005 0.0042 0.0067 <br />Boron, dissolved M200.7 ICP 12 0 7 2.8 3.301 1 .168 <br />Cadmium, dissolved M200-8 ICP-MS t2 3 0.033 0.001 0.0148 0.0095 <br />Calcium, dissolved M200-7 ICP 12 2 15 2 6.8 3.0 <br />Chromium, dissolved M200-B ICP-MS 12 0 0.48 0.016 0.103 0.129 <br />Cobalt, dissolved M200-B ICP-MS t2 11 0.015 0.00025 0.002 0.004 <br />Copper, dissolved M200-8 ICP-MS t2 7 0.255 0.0025 0.054 0.077 <br />Iron, dissolved M200-8 ICP-MS 12 0 1.2 0.2 0.448 0.278 <br />Lead, dissolved M200-8 ICP-MS 12 9 0.025 0.0005 0.005 0.007 <br />Lithium, dissolved M200-7 ICP 12 0 1.4 0.7 0.838 0.194 <br />Magnesium, dissolved M200-7 ICP 12 0 20 6 15.7 3.8 <br />Manganese, dissolved M200-8 ICP-MS 12 1 0.103 0.022 0.044 0.026 <br />Mercury, dissolved M2oo-8 ICP-MS 12 12 0.0015 0.0001 0.0006 0.0004 <br />Molybdenum, dissolved M200-8 ICP-MS 12 0 1.77 0.006 0.163 0.506 <br />Nickel, dissolved M200-8 ICP-MS t2 6 0.17 0.002 0.023 0.048 <br />Potassium, dissolved M200-7 ICP 12 0 64 13 26.8 14.1 <br />Selenium, dissolved sM3soo-sec, nn-Hydride 12 12 0.003 0.0005 0.002 0.001 <br />Silica, dissolved M200-7 ICP 12 0 83 10 19.8 20.5 <br />Silver, dissolved M200-8 ICP-MS 12 5 0.015 0.001 0.0031 0.0038 <br />Sodium, dissolved M200-7 ICP t2 0 13100 5530 6452.5 2100.5 <br />Strontium, dissolved M2oo-7 ICP 12 0 1.81 0.5 1.568 0.353 <br />Thallium, dissolved M2oo-B ICP-MS 12 11 0.015 0.00025 0.0023 0.0041 <br />Uranium, dissolved M200-8 ICP-MS 12 3 0.025 0.002 0.0066 0.0071 <br />Vanadium, dissolved M2oo-7 ICP 12 10 0.1 0.015 0.0325 0.0241 <br />Zinc, dissolved M200-8 ICP-MS 12 6 1.87 0.02 0.289 0.533 <br />Bicarb as CaC03 M2320B 12 0 22700 9770 12806 3236 <br />Carbonate as CaC03 M2320B 12 11 6900 t 634 1974 <br />Hydroxide as CaC03 M2320B 12 12 100 1 67 49 <br />Total Alkalinity M23208 t2 0 29600 9770 13381 5182 <br /> <br />Analyte concentrations reported below the detection limit are set equal to one half the detection limit for all statistical calculations. <br />