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Illinois Department of
Natural ResourcesStreamflow information saves lives and protects property during floods. Information on the streamflow in the Nation's rivers also helps to ensure adequate water resources for a healthy environment and economy. The U.S. Geological Survey (USGS) operates and maintains a national network of over 7,000 streamgages.
| Most Recent Instantaneous Value Dec 19 | Min (1954) | 25th percen- tile | Median | Mean | 75th percen- tile | Max (1993) |
|---|---|---|---|---|---|---|
| -- unavailable -- | 0.30 | 3.6 | 14 | 21 | 29 | 150 |