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 | Mean | 75th percen- tile | Most Recent Instantaneous Value Mar 11 | Max (2002) |
|---|---|---|---|---|---|---|
| 2.36 | 4.9 | 10 | 14 | 20 | 45.1 | 68.3 |