Station operated in cooperation with Cleveland-Cliffs Inc. and the Michigan Department of Environment, Great Lakes and Energy.
| Min (1974) | 25th percen- tile | Most Recent Instantaneous Value Dec 23 | Mean | Median | 75th percen- tile | Max (1998) |
|---|---|---|---|---|---|---|
| 0.13 | 7.9 | 14.0 | 14 | 14 | 19 | 26.0 |