Observed and urbanization-adjusted annual maximum peak discharge and associated urban fraction and precipitation values at USGS streamgage:
05536500 TINLEY CREEK NEAR PALOS PARK, IL
| 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 |
| 1951 | 1 | -- | 0 | 0.046 | 1.342 | 505 | 889 | 0.274 |
| 1952 | 1 | -- | 0 | 0.062 | 0.944 | 405 | 746 | 0.426 |
| 1953 | 1 | -- | 0 | 0.077 | 1.151 | 530 | 901 | 0.263 |
| 1954 | 1 | -- | 0 | 0.092 | 1.661 | 367 | 667 | 0.523 |
| 1955 | 1 | -- | 0 | 0.108 | 3.267 | 1930 | 2780 | 0.007 |
| 1957 | 1 | -- | 0 | 0.138 | 2.374 | 1730 | 2450 | 0.011 |
| 1958 | 1 | E | 0 | 0.154 | 0.974 | 227 | 436 | 0.826 |
| 1959 | 1 | E | 0 | 0.169 | 1.261 | 455 | 745 | 0.427 |
| 1960 | 1 | -- | 0 | 0.184 | 0.050 | 395 | 650 | 0.548 |
| 1961 | 1 | -- | 0 | 0.202 | 1.435 | 453 | 720 | 0.458 |
| 1962 | 1 | -- | 0 | 0.219 | 0.268 | 306 | 511 | 0.736 |
| 1963 | 1 | E | 0 | 0.237 | 1.517 | 484 | 737 | 0.437 |
| 1964 | 1 | E | 0 | 0.254 | 0.982 | 110 | 225 | 0.972 |
| 1965 | 1 | -- | 0 | 0.272 | 0.887 | 391 | 591 | 0.628 |
| 1966 | 1 | D | 0 | 0.289 | 1.344 | 769 | 1040 | 0.171 |
| 1967 | 1 | E | 0 | 0.307 | 1.146 | 524 | 739 | 0.435 |
| 1968 | 1 | -- | 0 | 0.324 | 1.441 | 495 | 690 | 0.495 |
| 1969 | 1 | E | 0 | 0.342 | 0.426 | 240 | 369 | 0.893 |
| 1970 | 1 | -- | 0 | 0.359 | 1.100 | 1580 | 1930 | 0.020 |
| 1971 | 1 | E | 0 | 0.382 | 0.309 | 224 | 333 | 0.924 |
| 1972 | 1 | -- | 0 | 0.405 | 1.225 | 491 | 630 | 0.575 |
| 1973 | 1 | -- | 0 | 0.427 | 1.319 | 775 | 933 | 0.236 |
| 1974 | 1 | -- | 0 | 0.450 | 1.203 | 670 | 802 | 0.362 |
| 1975 | 1 | -- | 0 | 0.473 | 1.015 | 700 | 817 | 0.345 |
| 1976 | 1 | -- | 0 | 0.495 | 0.931 | 456 | 534 | 0.709 |
| 1977 | 1 | -- | 0 | 0.518 | 1.418 | 372 | 430 | 0.831 |
| 1978 | 1 | -- | 0 | 0.541 | 1.099 | 1220 | 1310 | 0.079 |
| 1979 | 1 | -- | 0 | 0.564 | 1.025 | 615 | 657 | 0.539 |
| 1980 | 1 | -- | 0 | 0.586 | 0.756 | 270 | 287 | 0.948 |
| 1981 | 1 | -- | 0 | 0.589 | 1.929 | 1560 | 1600 | 0.041 |
| 1982 | 1 | -- | 0 | 0.591 | 0.365 | 713 | 737 | 0.439 |
| 1983 | 1 | -- | 0 | 0.594 | 1.813 | 1310 | 1340 | 0.073 |
| 1984 | 1 | -- | 0 | 0.597 | 0.712 | 708 | 727 | 0.450 |
| 1985 | 1 | -- | 0 | 0.599 | 0.824 | 644 | 660 | 0.535 |
| 1986 | 1 | -- | 0 | 0.602 | 0.963 | 490 | 502 | 0.748 |
| 1987 | 1 | -- | 0 | 0.604 | 1.050 | 689 | 702 | 0.481 |
| 1988 | 1 | -- | 0 | 0.607 | 0.592 | 361 | 369 | 0.894 |
| 1989 | 1 | -- | 0 | 0.610 | 1.268 | 830 | 840 | 0.318 |
| 1990 | 1 | D | 0 | 0.612 | 2.284 | 758 | 765 | 0.405 |
| 1991 | 1 | -- | 0 | 0.613 | 2.283 | 1340 | 1350 | 0.071 |
| 1992 | 1 | C | 0 | 0.614 | 4.095 | 593 | 598 | 0.619 |
| 1993 | 1 | C | 0 | 0.615 | 1.359 | 820 | 825 | 0.334 |
| 1994 | 1 | CE | 0 | 0.616 | 0.510 | 439 | 442 | 0.817 |
| 1995 | 1 | C | 0 | 0.617 | 1.184 | 564 | 567 | 0.662 |
| 1996 | 1 | C | 0 | 0.618 | 3.384 | 2010 | 2020 | 0.019 |
| 1997 | 1 | C | 0 | 0.619 | 2.528 | 1080 | 1080 | 0.157 |
| 1998 | 1 | C | 0 | 0.619 | 1.603 | 604 | 605 | 0.609 |
| 1999 | 1 | C | 0 | 0.620 | 0.847 | 575 | 576 | 0.650 |
| 2000 | 1 | C | 0 | 0.621 | 1.112 | 582 | 582 | 0.641 |
| 2001 | 1 | CE | 0 | 0.621 | 0.767 | 473 | 473 | 0.782 |
| 2002 | 1 | C | 0 | 0.621 | 2.584 | 830 | 830 | 0.329 |
| 2003 | 1 | 2C | 0 | 0.621 | 0.505 | 350 | 350 | 0.910 |
| 2004 | 1 | C | 0 | 0.621 | 1.940 | 690 | 690 | 0.497 |
| 2005 | 1 | C | 0 | 0.621 | 0.922 | 712 | 712 | 0.469 |
| 2006 | 1 | C | 0 | 0.621 | 1.939 | 1210 | 1210 | 0.107 |
| 2007 | 1 | C | 0 | 0.621 | 2.352 | 808 | 808 | 0.354 |
| 2008 | 1 | C | 0 | 0.621 | 4.313 | 907 | 907 | 0.255 |
| 2009 | 1 | C | 0 | 0.621 | 1.908 | 1190 | 1190 | 0.114 |