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• , <br />DESCRIPTIVE STATISTICS GROUND WATER WELL 20-46 <br />AUGUST 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 1CP 11 2 2 0.015 0.424 0.640 <br />Antimony, dissolved M200-8 ICP-MS 11 9 0.0025 0.00005 0.001 0.001 <br />Arsenic, dissolved M200-8 ICP-MS t1 8 0.0053 0.00025 0.002 0.002 <br />Barium, dissolved M200-7 ICP 1t 0 3.14 0.431 0.939 0.796 <br />Beryllium, dissolved M200-8 ICP-MS 1t 7 0.0025 0.00005 0.0007 0.0007 <br />Boron, dissolved M200-7 ICP 11 0 0.96 0.32 0.414 0.184 <br />Cadmium, dissolved M200-8 ICP-MS 11 5 0.006 0.0001 0.0012 0.0019 <br />Calcium, dissolved M2oo-7 ICP 11 0 15.2 5.3 8.2 3.0 <br />Chromium, dissolved M200-8 ICP-MS t1 5 0.01 0.0001 0.003 0.004 <br />Cobalt, dissolved M2oo-B ICP-MS 11 4 0.0028 0.00015 0.001 0.001 <br />Copper, dissolved M200-8 ICP-MS tt 4 0.287 0.0005 0.040 0.088 <br />Iron, dissolved M200-8 ICP-MS 11 0 1.45 0.03 0.315 0.502 <br />Lead, dissolved M2oo-8 ICP-MS 1t 6 0.0062 0.0002 0.001 0.002 <br />Lithium, dissolved M200-71CP 1t 1 0.35 0.02 0.071 0.093 <br />Magnesium, dissolved M200-71CP 11 0 6.4 3 4.2 1.2 <br />Manganese, dissolved M2oo-8 ICP-MS 11 0 0.134 0.0073 0.039 0.037 <br />Mercury, dissolved M200-8 ICP-MS t 1 11 0.0005 0.0001 0.0004 0.0002 <br />Molybdenum, dissolved M200-8 ICP-MS t1 1 0.01 0.0003 0.003 0.003 <br />Nickel, dissolved M200-8 ICP-MS 11 2 0.012 0.0006 0.003 0.004 <br />Potassium, dissolved M200-7 ICP 11 0 3.1 1.2 1.7 0.6 <br />Selenium, dissolved SM3500-Se C, AA-Hydride 11 11 0.003 0.0005 0.003 0.001 <br />Silica, dissolved M2oo-7 ICP 11 0 32.3 14.2 17.8 5.5 <br />Silver, dissolved M200-8 ICP-MS tt 9 0.001 0.000025 0.0002 0.0003 <br />Sodium, dissolved M200-7 1CP t t 0 1530 529 691.9 281.3 <br />Strontium, dissolved M200-71CP t1 0 2.52 0.82 1.335 0.434 <br />Thallium, dissolved M200-8 ICP-MS 1t 11 0.00025 0.000025 0.0001 0.0001 <br />Uranium, dissolved M2oo-81CP-MS 1t 3 0.0062 0.00015 0.0019 0.0023 <br />Vanadium, dissolved M2oo-71CP 11 11 0.005 0.0025 0.0030 0.0010 <br />Zinc, dissolved M200-8 ICP-MS 11 5 0.115 0.002 0.026 0.033 <br />Birarb as CaC03 M23208 11 0 3120 1060 1409 560 <br />Carbonate as CaC03 M2320B 11 8 148 1 37 52 <br />Hydroxide as CaC03 M23206 11 11 10 1 7 5 <br />Total Alkalinity M2320B 11 0 3120 1160 1441 564 <br /> <br />Analyte concentrations reported below the detection limit are set equal to one half the detection limit for all statistical calculations. <br />