The Lower Duwamish Waterway
Source Control Investigation

Source Control Areas Map - Updated July 2008

This map shows the 23 Source Control Areas where Ecology plans to write Source Control Action Plans.  Please note, this map shows only the northern and southern extent of the portion of each source control area that is adjacent to the Lower Duwamish Waterway.  Each source control area will also include the associated sub-drainage basin.  As we continue to learn more about the drainage basins, the boundaries of these areas are subject to change.

Click on map for larger size.For a larger view of the map, please click on the map at left. After the map has opened, you will see a small gold button on the bottom right side of the map. Clicking on the gold box will increase the size of the map to it's fullest extent.