Spill Information
2011
High 12-Hour Average Daily TDG Levels:
Combined
Oregon
Washington
Percent Spill
Spill Caps
April
1 -
April
30
TDG Instance Types
May
1 -
May
31
TDG Instance Types
June
1 -
June
30
TDG Instance Types
Prior Years' Spill Information:
2010
2009
2008
2007
2006
2005
2004
2003