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<br />
<br />ANNUAL PEAK FLOW FREQUENCY ANAL YS~
<br />Following Bulletin 17-B Guidelines
<br />Program peakfq
<br />
<br />Station - 09118000 Quartz Creek Near Ohio City, Co.
<br />
<br />(All Values cfs)
<br />
<br />Annual Expected 95% Confidence Limits
<br />Exceedance Bull.17B Systematic Probability For Bull. 17B Estimates
<br />Probability Estimate Record Estimate Lower Uoper
<br />0.9950 105 99 89 69 137
<br />0.9900 120 115 106 82 154
<br />0.9500 172 169 163 130 208
<br />0.9000 205 205 199 163 243
<br />0.8000 252 254 249 209 292
<br />0.5000 363 367 363 316 420
<br />0.2000 504 504 510 435 610
<br />0.1000 589 583 602 500 738
<br />0.0400 688 670 714 573 896
<br />0.0200 756 728 795 622 1,010
<br />0.0100 820 780 875 667 1,120
<br />0.0050 881 828 953 708 1,228
<br />0.0020 957 886 1,057 759 1,365
<br />
<br />Station - 09118000 Quartz Creek Near Ohio City
<br />
<br />1.52
<br />
<br />Return Period (years)
<br />10 25 50 100
<br />
<br />5
<br />
<br />10,000
<br />
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<br />\...\~\~ i _\_ J~ ~\~ ~ ~\~ ~ _ __
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<br />II! I I I
<br />III I I I
<br />III I I I
<br />
<br />-Bull. 17B Estimate
<br />- - - 95% Confidence Umits
<br />- - - 95% Confidence Umits
<br />
<br />..
<br />-
<br />u
<br />~
<br />"
<br />'"
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<br />..
<br />.c
<br />u
<br />..
<br />i3
<br />
<br />1,000
<br />
<br />
<br />/:
<br />, ,
<br />, ,
<br />, ,
<br />
<br />100
<br />1.000
<br />
<br />0.100
<br />
<br />Exceedance Probability
<br />
<br />1/30102
<br />gun_co-9age-peak.xls
<br />
<br />500
<br />
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<br />
<br />0.010
<br />
<br />0.001
<br />
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