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 (2003) | Most Recent Instantaneous Value Oct 15 | 25th percen- tile | Median | 75th percen- tile | Mean | Max (2017) |
|---|---|---|---|---|---|---|
| 0.33 | 0.66 | 0.78 | 1.3 | 3.1 | 4 | 39.4 |