A combined sewer overflow (CSO) alert is in effect. Portland's combined sewers overflowed to the Willamette River on Saturday, September 19, 2009.
http://www.portlandonline.com/bes/?c=36989&a=263778
 
A combined sewer overflow (CSO) alert is in effect. Portland's combined sewers overflowed to the Willamette River on Saturday, September 5, 2009.
See the advisory at http://www.portlandonline.com/bes/?c=36989&a=262097
http://www.portlandtribune.com/news/story.php?story_id=125226369570735900
 
"A combined sewer overflow (CSO) alert is in effect. Portland's combined sewers overflowed to the Willamette River on Tuesday, August 11, 2009."
"A combined sewer overflow (CSO) alert is in effect. Portland's combined sewers overflowed to the Willamette River on Sunday, July 12, 2009."