Station operated in cooperation with Consumers Energy and the Michigan Department of Environment, Great Lakes and Energy.
| Min (1990) | 25th percen- tile | Median | Mean | 75th percen- tile | Most Recent Instantaneous Value Oct 14 | Max (2002) |
|---|---|---|---|---|---|---|
| 601 | 1040 | 1140 | 1190 | 1330 | 1680 | 1820 |