Station operated in cooperation with Consumers Energy and the Michigan Department of Environment, Great Lakes and Energy.
| Min (2003) | 25th percen- tile | Median | Mean | 75th percen- tile | Most Recent Instantaneous Value Aug 24 | Max (2005) |
|---|---|---|---|---|---|---|
| 837 | 918 | 980 | 1000 | 1060 | 1130 | 1240 |