Illinois Department of
Natural Resources
Metropolitan Water
Reclamation District of Greater Chicago
| Min (1978) | 25th percen- tile | Most Recent Instantaneous Value Feb 20 | Median | 75th percen- tile | Mean | Max (2018) |
|---|---|---|---|---|---|---|
| 0.21 | 3.6 | 7.89 | 12 | 32 | 40 | 1120 |