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<br />DESCRIPTIVE STATI5TICS GROIUNfl WATER WELL 29.4U <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 1 1.01 0.015 0.237 0.295 <br />Antimon ,dissolved M200~8 ICP•MS 9 5 0.0131 0.00015 0.002 0.004 <br />Arsenic, dissolved M200~8 ICP MS 9 2 0.106 0.0025 0.021 0.032 <br />Barium, dissolved M200-7 ICP 9 0 0.366 0.048 0.117 0.100 <br />Be Ilium, dissolved M200~8 ICP~MS 9 9 0.0005 0.00005 0.0003 0.0002 <br />Boron, dissolved M200~7 ICP 9 0 0.36 0.29 0.324 0.024 <br />Cadmium, dissolved MZ00 8 ICP MS 9 6 0.001 0.0001 0.0005 0.0004 <br />Calcium, dissolved M200-7 ICP 9 0 7.7 3.1 4.5 1.3 <br />Chromium, dissolved M200 8 ICP~MS 9 1 0.00429 0.0005 0.002 0.001 <br />Cobalt, dissolved M200 8 ICP~MS 9 6 0.00035 0.00014 0.000 0.000 <br />Copper, dissolved M200~8 ICP-MS 9 4 0.068 0.001 0.014 0.022 <br />Iron, dissolved M200~81CP~MS 9 0 0.4 0.03 0.117 0.109 <br />Lead, dissolved M200-8 ICP~MS 9 2 0.002 0.00025 0.001 0.001 <br />Lithium, dissolved M200-7 ICP 9 0 0.13 0.06 0.076 0.022 <br />Ma nesium, dissolved M200~7 ICP 9 0 8.9 4.3 6.7 1.8 <br />Man anese, dissolved M200-8 ICP~MS 9 0 0.0797 0.003 0.022 0.023 <br />Mercu ,dissolved M200~8 ICP~MS 9 9 0.0005 0.0001 0.0003 0.0002 <br />Mol bdenum, dissolved M200~8 ICP-MS 9 0 0.118 0.0619 0.075 0.017 <br />Nickel, dissolved M200~8 ICP MS 9 4 0.003 0.0005 0.001 0.001 <br />Potassium, dissolved M200~7 ICP 9 0 6 2.2 3.1 1.4 <br />Selenium, dissolved SM3500~Se C, AA~Hydride 9 8 0.003 0.0005 0.003 0.001 <br />Silica, dissolved M200 7 ICP 9 0 34.9 15.2 21.5 5.4 <br />Silver, dissolved M200~8ICP-MS 9 7 0.0015 0.0001 0.0004 0.0004 <br />Sodium, dissolved M200~7 ICP 9 0 1480 482 666.4 311.6 <br />Strontium, dissolved M200~7 ICP 9 0 0.41 0.21 0.323 0.074 <br />Thallium, dissolved M200~8 ICP-MS 9 8 0.0005 0.00005 0.0002 0.0002 <br />Uranium, dissolved M200~8 ICP~MS 9 0 0.0409 0.01 0.0189 0.0102 <br />Vanadium, dissolved M200~7 ICP 9 8 0.042 0.0025 0.0072 0.0131 <br />Zinc, dissolved M200~8 ICP MS 9 3 0.09 0.005 0.023 0.026 <br />Bicarb as CaC03 M2320B 9 0 1500 400 740 328 <br />Carbonate as CaC03 M2320B 9 0 740 110 237 204 <br />H droxide as CaC03 M23206 9 9 10 1 8 4 <br />Total Alkalinity M2320B 9 0 2240 705 977 489 <br /> <br />Analyte concentrations reported below the detection limit are set equal to one half the detection limit for all statistical calculations. <br />