Station operated in cooperation with city of Portland, Bureau of Environmental Services (BES).
NOTE: The most current shifted rating for this site can be found at USGS Rating Depot website.
| Min (2005) | 25th percen- tile | Median | Most Recent Instantaneous Value Feb 28 | Mean | 75th percen- tile | Max (2011) |
|---|---|---|---|---|---|---|
| 2.65 | 6.1 | 10 | 20.6 | 22 | 27 | 154 |