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<br /> <br />DESCRIPTIVE STATIST#CS GROUND VItATER WELL 2i-4D aND 21-4Dx <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 5 5 1 0.3 0.720 0.383 <br />Antimon ,dissolved M200~8 ICP~MS 5 2 0.01 0.0025 0.007 0.003 <br />Arsenic, dissolved M200~8 ICP~MS 5 1 0.11 0.025 0.077 0.033 <br />Barium, dissolved M200~7 ICP 5 0 5.99 3.29 4.696 1.114 <br />Beryllium, dissolved M200-8 ICP MS 5 3 0.02 0.0025 0.0090 0.0072 <br />Boron, dissolved M200~7 ICP 5 0 11.5 10.1 10.780 0.526 <br />Cadmium, dissolved M200~8 ICP~MS 5 1 0.05 0.005 0.0220 0.0183 <br />Calcium, dissolved M200~7 ICP 5 0 20 7 17.2 5.7 <br />Chromium, dissolved M200~8 ICP MS 5 0 0.74 0.218 0.394 0.218 <br />Cobalt, dissolved M200-8 ICP MS 5 5 0.005 0.00125 0.003 0.001 <br />Copper, dissolved M200~8 ICP~MS 5 4 0.18 0.0125 0.059 0.069 <br />Iron, dissolved M200~8 ICP~MS 5 0 9 2.9 4.880 2.527 <br />Lead, dissolved M200~8 ICP~MS 5 1 0.04 0.01 0.024 0.011 <br />Lithium, dissolved M200-7 ICP 5 0 4 2.9 3.360 0.541 <br />Magnesium, dissolved M200~7 ICP 5 1 10 4 7.6 2.9 <br />Man anese, dissolved M200~8 ICP~MS 5 0 0.17 0.03 0.098 0.052 <br />Mercu ,dissolved M200-8 ICP MS 5 4 0.01 0.0001 0.0027 0.0041 <br />Mol bdenum, dissolved M200~8 ICP~MS 5 0 3.43 0.025 1.365 1.417 <br />Nickel, dissolved M200~8 ICP~MS 5 1 0.05 0.01 0.028 0.020 <br />Potassium, dissolved M200~7 ICP 5 0 161 130 144.6 13.2 <br />Selenium, dissolved SM3500~Se C. AA~Hydride 5 3 0.003 0.0005 0.002 0.001 <br />Silica, dissolved M200-7 ICP 5 0 41 19 30.0 10.5 <br />Silver, dissolved M200~8 ICP~MS 5 4 0.005 0.0015 0.0030 0.0013 <br />Sodium, dissolved M200~7 ICP 5 0 29100 25300 26940.0 1910.0 <br />Strontium, dissolved M200-7 ICP 5 0 1.2 0.8 0.980 0.148 <br />Thallium, dissolved M200~81CP~MS 5 4 0.011 0.00125 0.0043 0.0041 <br />Uranium, dissolved M200~81CP MS 5 2 0.0345 0.0015 0.0115 0.0134 <br />Vanadium, dissolved M200-7 ICP 5 2 0.9 0.05 0.3600 0.3305 <br />Zinc, dissolved M200-8 ICP-MS 5 0 3.5 0.2 2.400 1.351 <br />Bicarb as CaC03 M23206 5 0 49900 38500 43260 4222 <br />Carbonate as CaC03 M23206 5 5 100 1 60 54 <br />H droxide as CaC03 M2320B 5 5 100 1 60 54 <br />Total Alkalinity M23206 5 0 49900 38500 43260 4222 <br /> <br />Analyte concentrations reported below the detection limit are set equal to one half the detection limit for all statistical calculations. <br />