Limit by calendar year: 2011 All
| WillametteBasinAssessmentRpt[1].pdf | 111 |
| May 2011 | June 2011 | July 2011 | August 2011 | September 2011 | October 2011 | November 2011 | December 2011 | January 2012 | February 2012 | March 2012 | April 2012 | May 2012 | |
| WillametteBasinAssessmentRpt[1].pdf | 0 | 1 | 4 | 0 | 6 | 1 | 2 | 2 | 2 | 0 | 24 | 34 | 20 |
| Willamette Basin rivers and streams assessment | 75 |
| United States of America | 43 |
| Korea | 13 |
| China | 5 |
| Japan | 5 |
| Sweden | 4 |
| Brazil | 1 |
| Canada | 1 |
| Greece | 1 |
| Seoul | 13 |
| Mountain View | 8 |
| Portland | 7 |
| Östersund | 4 |
| Corvallis | 3 |
| Salem | 3 |
| Albany | 2 |
| Athens | 2 |
| Beijing | 2 |
| Eugene | 2 |