During the winter of 2007-2008, Two powerful floods occurred on the Nehalem River in Northwestern Oregon. The December 2007 and January 2008 floods scattered debris throughout the Nehalem River Valley with the majority of known damage occurring in the vicinity of Vernonia and Mist, OR. Debris identified consists of common household materials such as plastic containers, wood and tarps to hazardous materials including fuel and chemical drums, fertilizers, and paint.
Unified Command has been formed between USEPA and Oregon DEQ, and assessment and removal activities began on April 1, 2008.