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 (2014) | 25th percen- tile | Median | Mean | 75th percen- tile | Most Recent Instantaneous Value Dec 25 | Max (2007) |
|---|---|---|---|---|---|---|
| 2.21 | 5.8 | 11 | 19 | 30 | 34.7 | 56.5 |