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<br />DESCRIPTIVE STATISTICS GROUNQ WATER WELL 20.48 <br />.JULY 1, 1999 • MARCM 31, 2C1Q0 _ <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 8 1 2 0.03 0.548 0.720 <br />Antimon ,dissolved M200~8 ICP MS 8 6 0.0025 0.00025 0.001 0.001 <br />Arsenic, dissolved M200-8 ICP~MS 8 5 0.0053 0.001 0.003 0.002 <br />Barium, dissolved M200~7 ICP 8 0 3.14 0.431 1.021 0.936 <br />Beryllium, dissolved M200~8 ICP~MS 8 4 0.0025 0.0001 0.0009 0.0008 <br />Boron, dissolved M200~7 ICP 8 0 0.96 0.32 0.441 0.213 <br />Cadmium, dissolved M200-8 ICP MS 8 3 0.006 0.00025 0.0016 0.0022 <br />Calcium, dissolved M200~7 ICP 8 0 15.2 6 9.2 2.9 <br />Chromium, dissolved M200-8 ICP~MS 8 4 0.01 0.0001 0.002 0.003 <br />Cobalt, dissolved M200~8 ICP MS 8 3 0.0028 0.00015 0.001 0.001 <br />Copper, dissolved M200~8 ICP MS 8 4 0.287 0.0005 0.055 0.101 <br />Iron, dissolved M200~81CP~MS 8 0 1.45 0.06 0.411 0.566 <br />Lead, dissolved M200-8 ICP~MS 8 5 0.0062 0.00025 0.002 0.003 <br />Lithium, dissolved M200-7 ICP 8 1 0.35 0.02 0.080 0.110 <br />Ma neslum, dissolved M200-7 ICP 8 0 6.4 3.1 4.7 1.1 <br />Man anese, dissolved M200 8 ICP~MS 8 0 0.134 0.015 0.047 0.040 <br />Mercu ,dissolved M200-8 ICP MS 8 8 0.0005 0.0001 0.0003 0.0002 <br />Molybdenum, dissolved M200~8 ICP~MS 8 1 0.01 0.0005 0.003 0.003 <br />Nickel, dissolved M200~8 ICP-MS 8 2 0.012 0.001 0.004 0.004 <br />Potassium, dissolved M200-7 ICP 8 0 3.1 1.4 1.8 0.7 <br />Selenium, dissolved SM3500~Se C. AA~Hydride 8 8 0.003 0.0005 0.002 0.001 <br />Silica, dissolved M200~7 ICP 8 0 32.3 14.5 18.9 6.1 <br />Silver, dissolved M200-81CP MS 8 6 0.001 0.00005 0.0003 0.0003 <br />Sodium, dissolved M200-7 ICP 8 0 1530 529 730.6 326.6 <br />Strontium, dissolved M200 7 ICP 8 0 2.52 0.82 1.316 0.517 <br />Thallium, dissolved M200~8 ICP-MS 8 8 0.00025 0.00005 0.0002 0.0001 <br />Uranium, dissolved M200-8 ICP MS 8 2 0.0062 0.00025 0.0025 0.0024 <br />Vanadium, dissolved M200-7 ICP 8 8 0.005 0.0025 0.0031 0.0012 <br />Zinc, dissolved M200~8 ICP MS 8 4 0.115 0.002 0.031 0.037 <br />Bicarb as CaC03 M2320B 8 0 3120 1100 1513 660 <br />Carbonate as CaC03 M2320B 8 6 148 10 36 51 <br />H droxide as CaC03 M23206 8 8 10 1 9 3 <br />Total Alkalinity M2320B 8 0 3120 1240 1541 642 <br /> <br />Analyte concentrations reported below the detection limit are set equal to one half the detection limit for all statistical calculations. <br />