Observed and urbanization-adjusted annual maximum peak discharge and associated urban fraction and precipitation values at USGS streamgage:
05551030 BREWSTER CREEK AT VALLEY VIEW, IL

Observed annual peak-flood magnitudes were adjusted to 2010 land-use conditions on the basis of panel data regression model with fixed effect analysis. The symbols presented in the figure are: "observed annual peaks", "adjusted annual peaks", and "fraction of urbanization in the watershed"

Legend for Graph

Water year Segment Discharge code Cumulative reservoir storage (acre-feet) Urban fraction Precipitation (inches) Observed peak discharge (ft3/s) Adjusted peak discharge (ft3/s) Exceedance probability
1962 1 -- 0 0.070 0.282 125 245 0.822
1963 1 2 0 0.077 1.219 73 166 0.937
1964 1 2 0 0.083 0.675 56 136 0.961
1965 1 2 0 0.089 0.132 105 212 0.881
1966 1 -- 0 0.096 0.472 201 344 0.609
1967 1 -- 0 0.102 1.179 687 989 0.033
1968 1 -- 0 0.109 1.528 226 375 0.532
1969 1 2 0 0.115 1.311 158 280 0.754
1970 1 -- 0 0.122 1.454 292 460 0.359
1971 1 -- 0 0.133 0.362 408 602 0.169
1972 1 -- 0 0.144 0.626 671 941 0.039
1973 1 -- 0 0.155 1.362 221 351 0.591
1974 1 -- 0 0.166 1.171 408 585 0.182
1975 1 -- 0 0.177 0.035 325 478 0.325
1976 1 -- 0 0.188 1.127 275 412 0.452
1978 1 -- 0 0.211 1.371 156 250 0.811
1979 1 -- 0 0.222 0.760 352 492 0.301
2003 0 C 0 0.493 1.743 100 -- --
2004 0 C 0 0.502 1.284 111 -- --
2005 0 C 0 0.511 0.583 62 -- --
2006 0 C 0 0.520 0.717 77 -- --