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<br />il:'a <br />co .. <br />fD ::!. <br />:: 3 <br />3" <br />.. .. <br />" co <br />-" <br />seit <br />as. <br />"'0 <br />c:" <br />2. !!. <br />~- ~ <br />~o <br />jig <br />, - <br />~~ <br />!!l i{' <br />~3 <br />:gog, <br />'r~ <br />~a. <br />II> <br />" <br />"- <br />.. <br />n <br />.. <br />:!: <br />.. <br />1D <br />, <br />~ <br />:;: <br />.. <br />c: <br />'" <br />'" <br />.. <br />, <br />n <br />o <br />0" <br />il <br />c- <br />o <br />" <br />:C' <br />.. <br />, <br />z <br />a <br />0" <br />" <br />!!!. <br />:!: <br />.. <br />!i <br />b <br />" <br />!!!. <br />~ <br /> <br />co <br /> <br />Table 9. Comparison of environmental and concurrent- and sequential-replicate samples for general chemical constituents-Continued <br />{Eny., environmental sample; Rep., replicate sample: Dill. I, dtfference to units of constituent. Diff. 2. difference in luw6t rounding unit: mgfL, milligrams per liter: ~glL. micrograms per liter; <br />shaded cells represent diffcrence~ greater than plu<,; or O1inu<i , lowest roundmg unit; lowest rounding unit is equallo the magnitude of the least sigolficam figure: ~S{cm. ll'Ucrosiemens per centimeter <br />al 25 degrees Cel~iW':1 <br /> Silica \ron Manganese <br />Station Date Env. Rep. Dill. 1 Env. Rep. Dill. 1 Eov. Rep. Dill. 1 <br /> (mglL) (mglL) (mglL) Oill.2 (~g1L) (~g/L) (~glL) Diff.2 (l'glLl (~glL) (~g1L) Oill.2 <br /> Concurrenl replicates <br />Stale Line 091096 12 12 0 0 3 3 0 0 2 i 1 I <br />CilIllt.O 051396 8.6 8.7 -{).I -I 24 84 -{)O -{)O 16 17 -I -I <br />Gunnison :u 32 R03d 071895 9.1 9.1 0 0 73 71 2 2 21 21 0 0 <br />E,l<;! 113095 6.7 6.8 -{).I -I 3 3 0 0 3 3 0 0 <br />East 051696 5.1 5.4 -().) -3 25 25 0 0 10 10 () () <br />Gore 082396 5.2 5.1 0.1 i 5 4 I I 2 2 0 0 <br />Baker 081895 6.9 6.9 0 0 190 200 -10 -I 12 12 0 0 <br />M.lximum difference --0.3 -3 -{)O -{)O .1 .1 <br />Percem of silIllples wilh 43 43 43 43 71 71 <br />no difference <br />Percent of samples 86 71 IOU <br />within plus or minus I <br />lowt:s! rounding uni! <br /> Sequential replicates <br />Dotsero 032096 7.8 8 --0.2 -2 13 l2 I 21 21 0 0 <br />Reed 112295 10 10 0 0 9 II -2 -2 100 100 0 0 <br />Baker O::!2796 9.4 9.3 0.1 I 130 150 -20 -2 37 37 [) 0 <br />Maximum difference -{).2 2 -20 -2 0 0 <br />Number of samples with 1 0 0 3 3 <br />no differenct~ <br />Numb~r of samples 2 3 <br />within plus or minus I <br />lowc.<! roundmg unit <br />