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Illinois Department of
Natural Resources
Metropolitan Water
Reclamation District of Greater Chicago
| Min (1959) | 25th percen- tile | Median | Most Recent Instantaneous Value Dec 12 | Mean | 75th percen- tile | Max (1968) |
|---|---|---|---|---|---|---|
| 0.50 | 2.9 | 8 | 14.6 | 20 | 21 | 198 |