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r ~ <br />~ J <br />TABLE 2.5-9 - (concluded) <br /> OK-A OK-B <br />Parameter n z a n A a <br />Cd mg/I 16 <0.005 0.008 16 < 0.004 0.008 <br />Cu mg/I I6 <0.04 0.02 16 < 0.04 0.02 <br />Dissolved Fe rng/I 12 < 0.35 0.37 12 < 0.47 0.58 <br />Mn mg/I 16 <0.13 0.10 16 < 0.09 0.05 <br />Mg mg/I 16 35.3 8.5 16 35.3 8.2 <br />Hg rng/I 16 < 4.1(2) 16.5(2) I6 < 0.001 0.0 <br /> ( <0.001) (0.0) <br />Ag rng/I 16 <0.07 0.09 I6 < 0.05 0.06 <br />V rng/I 16 <0.6 0.4 16 < 0.6 0.5 <br />Zn rng/I 16 <0.09 0.09 I6 ~ 0.46 <br />Pb mg/I 16 <0.04 0.12 16 < 0.04 0.12 <br />As rng/I 16 <0.004 0.002 16 < 0.004 0.002 <br />8a rng/I I6 <0.2 0.2 16 < 0.2 0.2 <br />• Cr+6 rng/I 16 <0.08 0.03 16 < 0.08 0.03 <br />Ni rng/I 16 < 0.08 0.07 16 < 0.08 0.10 <br />Total Fe mg/I 16 1.15 0.63 16 1.08 0.59 <br />(I) n = number of samples <br />x = arithmetic means <br />a = standard deviations <br /> <br />(2) One value significantly higher than others; average value excluding the high value <br />in parenthesis. <br />Revised 7-81 2.5-38 <br />