Illinois Department of
Natural Resources
Metropolitan Water
Reclamation District of Greater Chicago
| Min (1978) | 25th percen- tile | Most Recent Instantaneous Value Feb 21 | Median | 75th percen- tile | Mean | Max (1997) |
|---|---|---|---|---|---|---|
| 0.18 | 4.1 | 5.76 | 12 | 32 | 49 | 831 |