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<br />... <br />"'" <br /> <br />~:a: <br />l/l ID <br />(1) ::::!. <br />:: 3 <br />3 J:J <br />ID ID <br />:s l/l <br />_I: <br />~ii <br />aa <br />'<0 <br />C:I: <br />5:~ <br />=e~ <br />2l.~ <br />ID :s <br />.. - <br />~2. <br />~ ~ <br />~3 <br />CD'tI <br />CD= <br />'f~ <br />~a <br />en <br />I: <br />::l <br />DI <br />t) <br />ID <br />=e <br />DI <br />- <br />ID <br />.. <br />- <br />o <br />.. <br />- <br />:T <br />ID <br />c: <br />'tI <br />'tI <br />ID <br />.. <br />o <br />o <br />0' <br />.. <br />DI <br />C. <br />o <br />J:J <br /><' <br />ID <br />.. <br />z <br />2l. <br />o' <br />:s <br />!!!. <br />=e <br />DI <br />;- <br />.. <br />C <br />I: <br />!!!. <br />~ <br /> <br />Table 8. Comparison of environmental and pre-processing split-replicate samples for trace elements-Continued <br />[Env., environmental sample; Split, pre-processing split-replicate sample; Diff. 1, difference in units of constituent; Diff. 2, difference in lowest rounding unit; lowest rounding unit <br /> is equal to the <br />magnitude of the least significant figure; 11g!L, micrograms per liter; shaded cells represent differences greater than plus or minus I lowest rounding unit; <, value is less than the <br /> laboratory minimum <br />reporting level] <br /> Copper Lead Molybdenum Nickel <br /> Station Date Env. Split Ditt.1 Env. Split Ditt.1 Env. Split Ditt.1 Env. Split Ditt.1 <br /> (I1g1L) (119/L) (I1g1L) Ditt.2 (l1g/L) (I1g1L) (11g!L ) Ditt.2 (119/L) (I1g1L) (11g!L ) Ditt.2 (I1g1L) (I1g1L) (11g!L ) Ditt.2 <br />Uncompahgre 072596 3 4 -1 -1 <1 <1 0 0 2 2 0 0 2 3 -1 -1 <br />French 090996 1 1 0 0 5 4 1 1 <1 <1 0 0 2 2 0 0 <br />Maximum difference -1 -1 1 1 0 0 -1 -1 <br />Number of samples with 1 1 1 1 2 2 1 1 <br />no difference <br />Number of samples 2 2 2 2 <br />within plus or minus 1 <br />lowest rounding unit <br /> Selenium Silver Uranium Zinc <br /> Station Date Env. Split Ditt.1 Env. Split Ditt.1 Env. Split Ditt.1 Env. Split Ditt.1 <br /> (I1g1L) (I1g1L) (I1g1L) Diff.2 (I1g1L) (I1g1L) (I1g1L) Diff.2 (I1g1L) (I1g1L) (11g!L ) Diff.2 (I1g1L) (I1g1L) (I1g1L) Diff.2 <br />Uncompahgre 072596 <1 <1 0 0 <1 <1 0 0 <1 <1 0 0 14 13 1 1 <br />French 090996 <1 <1 0 0 <1 <1 0 0 <1 <1 0 0 2,400 2,400 0 0 <br />Maximum difference 0 0 0 0 0 0 1 1 <br />Number of samples with 2 2 2 2 2 2 1 1 <br />no difference <br />Number of samples 2 2 2 2 <br />within plus or minus 1 <br />lowest rounding unit <br />