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<br />DESCRIPTIVE STATISTICS GROtlND WATER WELL 21-5 <br />JULY 1, 1999 -MARCH 31, 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 9 9 0.015 0.015 0.015 0.000 <br />Antimon ,dissolved M200.8 ICP-MS 9 6 0.02 0.00005 0.003 0.007 <br />Arsenic, dissolved M200-8 ICP MS 9 5 0.015 0.001 0.004 0.005 <br />Barium, dissolved M200.7 ICP 9 0 0.15 0.052 0.075 0.037 <br />Beryllium, dissolved M200.8 ICP MS 9 8 0.005 0.00005 0.0008 0.0016 <br />Boron, dissolved M200.7 ICP 9 0 0.43 0.36 0.387 0.021 <br />Cadmium, dissolved M200-8 ICP~MS 9 6 0.0025 0.00005 0.0006 0.0008 <br />Calcium, dissolved M200-7 ICP 9 0 56.3 51.2 52.9 1.6 <br />Chromium, dissolved M200 8 ICP MS 9 1 0.013 0.00025 0.003 0.004 <br />Cobalt, dissolved M200~8 ICP~MS 9 3 0.0015 0.00015 0.000 0.000 <br />Copper, dissolved M200 8 ICP-MS 9 4 0.021 0.0005 0.008 0.007 <br />Iron, dissolved M200-8 ICP-MS 9 0 0.23 0.06 0.169 0.062 <br />Lead, dissolved M200 8 ICP-MS 9 8 0.0025 0.00005 0.001 0.001 <br />Lithium, dissolved M200~7 ICP 9 0 0.07 0.05 0.060 0.005 <br />Ma nesium, dissolved M200-7 ICP 9 0 135 122 127.4 3.7 <br />Man anese, dissolved M200 8 ICP-MS 9 0 0.0284 0.0199 0.024 0.003 <br />Mercury, dissolved M200~8 ICP MS 9 9 0.001 0.00005 0.0004 0.0003 <br />Mol bdenum, dissolved M200-8 ICP-MS 9 0 0.008 0.0069 0.008 0.000 <br />Nickel, dissolved M200 8 ICP-MS 9 0 0.043 0.0018 0.008 0.013 <br />Potassium, dissolved M200 7 ICP 9 1 2.3 1 2.0 0.4 <br />Selenium, dissolved SM3500 Se C, AA Hytlride 9 9 0.003 0.0005 0.002 0.001 <br />Silica, dissolved M200-7 ICP 9 0 29.3 27 27.9 0.8 <br />Silver, dissolved M200-S ICP MS 9 8 0.0015 0.000025 0.0003 0.0005 <br />Sodium, dissolved M200.7 ICP 9 0 455 418 437.6 11.7 <br />Strontium, dissolved M200.7 ICP 9 0 6.06 5.25 5.616 0.259 <br />Thallium, dissolved M200-8 ICP MS 9 8 0.0015 0.000025 0.0003 0.0005 <br />Uranium, dissolved M200-8 ICP MS 9 5 0.0015 0.0001 0.0004 0.0005 <br />Vanadium, dissolved M200.7 ICP 9 9 0.015 0.0025 0.0039 0.0042 <br />Zinc, dissolved M200-8 ICP MS 9 2 0.07 0.002 0.030 0.024 <br />Bicarb as CaC03 M2320B 9 0 860 820 846 17 <br />Carbonate as CaC03 M2320B 9 8 20 1 7 7 <br />H droxide as CaC03 M2320B 9 9 10 1 6 5 <br />Total Alkalinity M2320B 9 0 860 820 848 15 <br /> <br />Analyte concentrations reported below the detection limit are set equal to one halt the detection limit for all statistical calculations. <br />