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<br /> J ~~',s ~~ t' ~ r i sut~ <br /> <br />i <br />~ <br />a ~k~~ ~ S ~ k <br />~ <br />~~ <br /> 800 y <br />- I~ <br />t w} <br />11 <br />4 ~ <br /> ~+ ~tfi1 ~ V~ <br />1 .. ~, d ~ - Y <br />~~MI <br />I <br />I <br />~ ~ <br />J <br />a~ <br />y r ~ <br />Y <br />~ <br />S ~' , i ~ ~~ 5 , <br />,~ <br />~ 600 , <br />. ;~ ~ ,~ i~ ~ # ~., <br />u. <br />~ <br />~r Ai, <br />~ ~ `~ <br />v, f <br />'~ <br />~ 400 ~~^ <br /> <br />IV <br />200 SFr'" ^ <br />a~ ~` <br /> _ <br />i <br />4 ! <br />T+~ <br />d~ <br />~ <br />~ <br />~ <br />~ <br />~ <br />~~ <br />~ <br />~ <br />~ <br /> O ,~'~ <br />~'A,~,l'' <br />~~~ N <br />.~~~~L <br />y~ <br />.S F;.:.:Ve f~~ <br />,e6~F l.i:l'~ <br />. <br />. <br />~.a,'f ^w+NJ <br />~7~ <br /> I I I <br /> 0 500 1000 1500 <br /> Streamflow (cfs) <br />Figure A-1: Reference Water Quality Zinc Concentrations and Streamflow at A-72 <br />To see this, in Figure A-1, samples on the rising limb of the amoral hydrograph are plotted as <br />triangles and other data as squares. The rising limb samples are generally higher in <br />concentration than others for the same Streamflow. <br />In order to use traditional statistical methods (which depend on normally distributed data), the <br />data must be transformed. The natural logarithm is a commonly used transformation in water <br />resources data analysis. Figure A-2 presents the baseline data after the natural logarithm <br />transformation. <br />7 00 <br />n„ ~tt~, u~~ ~ . ~,,~ -.«~ »~m~„u, • r & t~~ u~ a7~(rt~prrr~~. <br />cJ+~ri~t"~~ca 4 °~'3~m ~~' ,. ~€rt << ~ x;~iti~~' ~i'+~"~~'~~t <br />tr IG yy I ~7x' n a WAY ~ S v ro <br />6 5 O } t ~~ ~~ i l~l 4~ tf'~ "'ii~ Elm ' e ~ 6'S i '~ f I n~F 4k JvN~ <br />a~+~.1£ 5L 37' r3+M+'fi 6 tF yl ''! a _ u^/.n I k'~, <br />I$l. rxs,(~~^YM~ 1~1~~~ 464 4 I ~'' l 5~~. ~1 My"~~' <br />U - , ~ ~ ~a7Y. i~b~~~ i ~~Y~~~1"~ d ~ k~~ ~~t~~{80.+ <br />ak"1xr~e^~ " U 1~ ~ n +~i t ~ x n~~kTT ~ .v~~Y'~tl >~w <br />6 OO 1Y:~ ILa^~~"~+~^L Y~, .Ya b ' ~r~f3,x .z~ L3 . r 41y +'w ~ v l r^~4'Y~r~tNyi <br />d u W1~ Svk (t fiX? ~' t"'~'y'k. d} 5 @((ry Z-„ <br />`i ~~1~7VVi f F w ~pn~, 3 z~"m^ %ao R "~+ rc 51 r 'i ~ + ar}a s?'~gfri~ <br />= a~ fy~`7>y~rr '~x~:1~~P~,~ ~ 9J ~~' ~1 Y ~r ~`~S~-f <br />Y ~{~~µ,~v~'~ w x+' r~rx+ ~1"d3 vq v`"a x ir'& ~' ~' <br />~µ- '~# ~~- ~ sv"r~t~ e M~ ~ FE a '~" <br />„"r44. ~y~'~~tc ~Asf x~~'~,~y„~~E ~~~ vnah v e+'.s~f~~",5.~~,r^ r <br />5 OO ~' F~JFt a_° ~'. SS `4 sk a :G. G'y{JC"" t~ ii s {°~ ,.fi€"~~~~i ~~`7 <br />...a.!.rz ~S>: 7t..-,h ,.:xl ;'x~.y'F .w_§..n_ .,ti>wc.....5~ .._. <br />I I I <br />4.00 5.00 6.00 7.00 8.00 <br />In (flow) <br />rigure a-z: hteterence water Cdualfty at A-72, 17anstormeq unc ana srreamnow <br />Appendix A 3 <br />2;2565 <br />