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Table 3 - IRI-4 Annual <br />A-Groove Aquifer - Remote Down gradient <br /> 2005 2007 2008 2009 <br />Lab Reference Number L51270 L62783 L70340 L77248 <br />Field Readings <br />Depth to Water - Manual 419.4 425.60 423.65 <br />H** +0.1 units 9.7 9.9 10.17 <br />Conductivity 1130 1360 3910 <br />Monthly Readings <br />Alkalinity Total as CaC03) 228 309 176 253 <br />Bicarb HC03 as CaC03 118 140 90 188 <br />Hardness 13 1 12 2 <br />Total Dissolved Solids 685 753 781 693 <br />Boron 0.23 0.20 0.20 0.20 <br />Calcium U 0.5 4.0 0.7 <br />Carbonate 109 168 86 65 <br />Chloride 224 210 252 232 <br />Fluoride 6.7 5.8 4.5 3.5 <br />Magnesium U U 0.6 U <br />- <br />Potassium 1.2 1.5 1.9 2.3 <br />Silica 6.0 8.4 6.0 7.9 <br />Sodium 238 248 287 265 <br />Strontium 0.05 0.04 0.06 0.03 <br />Sulfate 20 20 60 U <br />Annual Readings <br />Aluminum U 0.04 0.08 0.06 <br />Ammonia 3.12 5.14 5.86 3.22 <br />Arsenic 0.001 0.002 U 0.0019 <br />Barium 0.006 0.028 0.007 0.201 <br />Beryllium U U U U <br />Bromide U U U U <br />Cadmium U U U U <br />Chromium U U U U <br />COD 320 230 890 460 <br />Copper U U U 0.04 <br />Iron 0.77 1.5 1.87 0.53 <br />Lead U U U U <br />Lithium 0.05 0.04 0.05 0.06 <br />Manganese U 0.011 0.010 0.005 <br />Mercury U U U U <br />Molybdenum 0.13 0.07 0.09 0.06 <br />Nickel U U U U <br />Nitrate as N U U 3.89 U <br />Nitrate NO3 + N02 as N 0.02 U 3.90 0.03 <br />Nitrogen, K'eldahl 40 11.1 46 24.8 <br />Phosphorus, Total 0.34 0.27 0.10 0.10 <br />SAR in water 29.3 97.6 35.80 88.10 <br />Selenium U U U U <br />Vanadium U U U U <br />Zinc 0.05 0.05 0.05 0.06 <br />Cation/Anion Balance -2.7 -5.8 4.2 1.3