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<br />"' <br />-' <br />'" <br /> <br /> - uP~erlttl ofl21 rrnce curve <br /> Up er limit of 4% ch nce curve I I <br /> I I I <br /> I.>~.i' <br /> , , t<>-, <br /> ..~ "~. <br /> "- ~ . <br /> ~~ \ ,\ <br /> " <br /> \ ~ , <br /> ~ . , <br /> ~ <br /> '\ 1\ ~ 1\ <br /> "- \ 1\ . <br /> , <br /> . <br /> !\ <br />NOTE - Upper numeral on 2% 1\ \ <br />and 4". cur..... rlpr...nts moxi- <br />mum effective detention perIod \ ritO <br />"In days to till Indicated IlorOQI \ \ <br />stortinQ from empty re.ervoir. ~~I <br />Lower numerol represlnts m(u.I- <br />mum compl.t. cycle in days from \ <br />Impty reservoir to full and re- <br />turn to emply reservoir ~ <br /> I I I I IIII ~ - <br /> <br />40 <br /> <br />"' <br />"' <br />.. <br />=> <br />o <br />'" <br /> <br />20 <br /> <br />a: <br />"' <br />Q. 10 <br />o <br />z <br />~ 7.0 <br />"' <br />'" <br /> <br />"' <br />~ 4.0 <br /> <br />>- <br />"' <br />"' <br />~ <br /> <br />u <br />m <br />=> <br />u <br /> <br />2.0 <br /> <br />z <br /> <br />,<' <br />o <br />-' <br />~ <br />>- <br />=> <br />o <br />'" <br />'" <br />o <br />"' <br />'" <br />o <br />"' <br />z <br />.. <br />>- <br />z <br /><i <br />'" <br /> <br />1.0 <br /> <br />0.7 <br /> <br />0.4 <br /> <br />0.2 <br /> <br />0.1 <br />.001 <br /> <br />.02 .04 .07 0 1 0.2 0.4 <br />STORAGE REQUIREMENT, IN INCHES OF RUNOFF <br /> <br />40 <br /> <br />7.0 10 <br /> <br />0.7 1.0 <br /> <br />2.0 <br /> <br />.004 <br /> <br />.007 .01 <br /> <br />.002 <br /> <br />Figure <br /> <br />12.- Storoge-required frequency curves to control high flow for Number <br /> <br />Driftwood Creek near McCook, Nebr. <br />(Contributing drainage area. 360 sq mi) <br /> <br />ee. <br /> <br />o <br /><.;;.; <br /> <br />,~ <br />........ <br />,... <br />.-..1 <br /> <br />'" <br /><J> <br />