Station operated in cooperation with Cleveland-Cliffs Inc. and the Michigan Department of Environment, Great Lakes and Energy.
| Min (1974) | 25th percen- tile | Median | Most Recent Instantaneous Value Feb 22 | Mean | 75th percen- tile | Max (1994) |
|---|---|---|---|---|---|---|
| 0.30 | 7.7 | 14 | 14.2 | 15 | 21 | 27.0 |