While these should be more rare than in the past, here are two reports from BES issued on May 23:
Combined Sewer Overflow (CSO) Advisory
Heavy rain early Thursday (May 23, 2013) caused combined sewage and stormwater to overflow to the Willamette River from three outfall pipes:
On the east bank of the river just north of the Morrison Bridge;
On the west bank of the river at the Burnside Bridge; and
On the east bank of the river just north of the Fremont Bridge.
This article was published July 7, 2011. This is only the abstract- the full article can be downloaded at the bottom of the page or by clicking here.
The New York Times has compiled a comprehensive collection of data on facilities permitted under the Clean Water Act, violations of the law, and enforcement actions. The data shows that enforcement is often lax, but Oregon fairs better than many other states.
The most common violators in Oregon, under the Clean Water Act, are municipal waste water treatment plants, including Portland's facility on Columbia Boulevard.
You can browse the data at http://projects.nytimes.com/toxic-waters.
As the Portland Harbor cleanup process moves forward, and the LWG and EPA wrestle through the RI/FS we must discuss what level of clean we want for our Harbor.
Do we wish to see more McCormick & Baxter type of sites, or do we step up and look for alternative treatment technologies to give a cleaner river?
And HEY, what about that upland source control?
An interesting story in the Portland Tribune about the war time history of ship building in the Portland area. See http://www.portlandtribune.com/news/story.php?story_id=124406121209594300
Jenkins, S, N Raghuraman, I Eltoum, M Carpenter, J Russo and C Lamartiniere. 2009. Oral exposure to bisphenol A increases dimethylbenzanthracene- induced mammary cancer in rats. Environmental Health Perspectives doi:10.1289/ehp.11751.