Station operated in cooperation with Consumers Energy and the Michigan Department of Environment, Great Lakes and Energy.
| Min (1982) | 25th percen- tile | Median | Most Recent Instantaneous Value Mar 6 | Mean | 75th percen- tile | Max (2004) |
|---|---|---|---|---|---|---|
| 780 | 919 | 1000 | 1070 | 1080 | 1150 | 2220 |