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<br /> 100 500 <br /> A B <br /> 90 I MEAN DAllY STREAMFLOW, <br /> I 1978-83 <br /> C \ <br /> MAXIMUM \ ----- INSTANTANEOUS STREAMFLOW <br /> Z ~ , WHEN WATER-QUALITY <br /> 0 75TH PERCENTILE 100 , SAMPLES WERE <br /> U 80 , <br /> w MEDIAN , COLLECTED,1977-81 <br /> '" 25TH PERCENTILE '" <br /> a: <br /> w MINIMUM C \ <br /> a.. Z \ <br /> I- 70 0 J <br /> w U \ <br /> w w \ <br /> u.. '" , <br /> u a: , <br /> iii w , <br /> 80 a.. , <br /> ::::l I- , <br /> U , <br /> w , <br /> ~ w , <br /> u.. 10 , <br /> ~- U , <br /> , <br /> 50 iii , <br /> 0 ::::l , <br /> ...J , <br /> u.. U , <br /> ~ Z , <br /> <I: \ <br />... W ~- , <br />'" a: 00 , <br /> I- 0 '\. <br /> '" ...J , <br /> > u.. , <br /> ~ , <br /> ...J , <br /> :r 30 <( , <br /> I- w <br /> Z a: <br /> 0 I- <br /> ~ '" <br /> Z <br /> <( 20 <br /> w <br /> ~ <br /> <br /> <br />o <br /> <br /> <br />0,1 <br />0.01 0.1 <br /> <br /> <br /> <br />10 <br /> <br />OCT NOV DEe JAN FEB MAR APA MAY JUNEJULY AVG SEPT <br /> <br />10 <br /> <br />50 <br /> <br />90 95 98 99 <br /> <br />99.9 99.99 <br /> <br />PERCENTAGE OF TIME INDICATED STREAMFLOW <br />WAS EQUALED OR EXCEEDED <br /> <br />Figure 8,--(A) Statistical summary of mean monthly streamflows, 1977-83, and <br />(B) streamflow-duration curves for site MIQ, <br />