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r I ~_ ~J Table 6-I Groundwater Analyses Results Parameter Groundwater Standard Std T ' Deep Dakota Well BG-lD A-Pit Ail units in m ,unless otherwise noted. Aluminum 5 A 0.07 0.0$ Barium 2.0 H 0.03 0.03 Be Ilium 0.004 H <0.004 <0.004 Boron 0.7$ A 0.3 0.2 Calcium None N 2.1 320 Cadmium O.OOS H <0.005 <0.00$ Chromium 0.1 H <0.0] <0.0I Cobalt 0.0$ A <0,0( <0.01 Co er 0.2 A 0.05 <0.01 Iron 0.3 S 3.6 0.1 Lithium 2.5 A O.i$ 0.22 Ma nesium None N 0.5 802 Man artese 0.05 S 0.02$ 0.046 Mol bdenum None N <O.OI O.ll Nickel 0.1 H <0.04 0.12 Potassium None N <$ <$ Silicon None N 8.6 1.5 Silver 0.05 H <O.OI <0.01 Sodium None N 213 249 Strontium None N 0.096 6.51 Titanium None N <0.01 <0,0! Vanadium 0.1 A <O.OI <O.OI Zinc 2.0 A 0.08 0.14 Arsenic 0,0$ H <0.003 0.008 Antimon None N <0.005 0.01$ Selenium 0.02 A <0.005 0.007 Thallium 0.002 H <0.002 <0.002 Mercu 0.002 H <0.0002 <0.0002 Fluoride 2.0 A 2.6 0.5 Chloride 250 S 7 $ NitmteasN 10.0 H <0.01 0.4 NitriteasN t.0 H <0.01 <0.1 Sulfate 250 S 6 1480 Pho hate None N 0.08 <0.06 Sulfite None N l 1 Sulfide None N 5 3 Total Or anic Carbon None N < 1 3 Total Dissolved Solids 1.2$ x Bk S 465 2230 S ecific Conductivi mh/cm None N 836 2500 H standard units 6.$-8.$ S 8.28 8.03 Total [nor anic Cazbon None N 99 31 Alkatini as Bicarbonate None N 487 149 Alkalini as Carbonate None N 25 Gross Alpha (pCi1L) iS H 3.215.8 80122 Gross Beta (pCi/L) 4 mrem/yr F 0.915.5 17115 r Std Type refers to [he type of groundwater standard as follows: H =Human Health Standard; S =Secondary Standard; A = Agricultural Standard; F =Federal Drinking Water Standard; N =No Standard. i