Station operated in cooperation with the Michigan Department of Environment, Great Lakes and Energy.
| Min (1957) | 25th percen- tile | Most Recent Instantaneous Value Sep 28 | Median | Mean | 75th percen- tile | Max (2005) |
|---|---|---|---|---|---|---|
| 7.30 | 10 | 14.0 | 14 | 19 | 21 | 89.6 |