Station operated in cooperation with the Michigan Department of Environment, Great Lakes and Energy.
| Min (1961) | 25th percen- tile | Median | Most Recent Instantaneous Value Jul 10 | Mean | 75th percen- tile | Max (1957) |
|---|---|---|---|---|---|---|
| 5.80 | 9.2 | 12 | 14.0 | 17 | 17 | 87.0 |