Station operated in cooperation with Consumers Energy and the Michigan Department of Environment, Great Lakes and Energy.
| Min (1967) | 25th percen- tile | Median | Mean | 75th percen- tile | Most Recent Instantaneous Value Oct 14 | Max (1987) |
|---|---|---|---|---|---|---|
| 755 | 835 | 908 | 963 | 1040 | 1050 | 1700 |