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<br />DESCRIPTIVE STATISTICS GROUND WATER WELL 21-3D <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 8 0.8 0.1 0.340 0.212 <br />Antimony, dissolved M200-8 ICP-MS 10 7 0.05 0.0025 0.008 0.015 <br />Arsenic, dissolved M200-8 ICP-MS 10 3 0.32 0.015 0.103 0.111 <br />Barium, dissolved M200-7 ICP 10 0 4.87 0.98 1.840 1.292 <br />Beryllium, dissolved M200-8 ICP-MS 10 8 0.007 0.0025 0.0042 0.0016 <br />Boron, dissolved M2oo-7 ICP 10 0 6.6 5.8 6.138 0.218 <br />Cadmium, dissolved M2oo-B ICP-MS 10 1 0.069 0.0025 0.0263 0.0226 <br />Calcium, dissolved M200-7 ICP 10 0 41 6 12.1 10.8 <br />Chromium, dissolved M200-8 ICP-MS 10 0 0.474 0.028 0.201 0.160 <br />Cobalt, dissolved M2oo-8 ICP-MS 10 9 0.0025 0.00125 0.002 0.001 <br />Copper, dissolved M200-8 ICP-MS 10 5 1.74 0.01 0.226 0.535 <br />Iron, dissolved M200-8 ICP-MS 10 0 4.1 0.7 1.281 1.086 <br />Lead, dissolved M2oo-8 ICP-MS 10 8 0.02 0.001 0.005 0.005 <br />Lithium, dissolved M2oo-71CP 10 0 3.1 2.3 2.610 0.228 <br />Magnesium, dissolved M200-7 ICP 10 0 12 6 7.8 2.2 <br />Manganese, dissolved M200-8 ICP-MS 10 1 1.27 0.0025 0.170 0.389 <br />Mercury, dissolved M200-8 ICP-MS 10 10 0.005 0.0001 0.0009 0.0015 <br />Molybdenum, dissolved M200-8 ICP-MS 10 0 0.843 0.026 0.568 0.294 <br />Nickel, dissolved M200-8 ICP-MS 10 0 0.03 0.01 0.025 0.007 <br />Potassium, dissolved M200-7 ICP 10 0 61 46 55.2 4.7 <br />Selenium, dissolved sMasoo-se c, nA-rlya~~ae 10 9 0.003 0.0005 0.002 0.001 <br />Silica, dissolved M2oo-71CP 10 0 70 20 55.0 17.4 <br />Silver, dissolved M2oo-8 ICP-MS 10 4 0.005 0.0025 0.0034 0.0009 <br />Sodium, dissolved M2oo-7 ICP 10 0 16100 15200 15510.0 292.3 <br />Strontium, dissolved M200-7 ICP 10 0 1.2 0.2 0.465 0.368 <br />Thallium, dissolved M2oo-8 ICP-MS 10 9 0.005 0.0005 0.0020 0.0012 <br />Uranium, dissolved M200-8 ICP-MS 10 3 0.025 0.0015 0.0112 0.0068 <br />Vanadium, dissolved M200-71CP 10 3 0.3 0.05 0.1290 0.0821 <br />Zinc, dissolved M200-8 ICP-MS 10 5 2.2 0.05 0.556 0.783 <br />Bicarb as CaC03 M2320B t0 0 34500 27900 31300 2009 <br />Carbonate as CaC03 M23206 10 8 1450 1 332 521 <br />Hydroxide as CaC03 M2320B 10 10 100 1 80 42 <br />Total Alkalinity M2320B 10 0 34500 29300 31560 1744 <br /> <br /> <br />Analyte concentrations reported below the detection limit are set equal to one half the defection limit for all statistical calculations. <br />