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Interim waterway maps - by county and species
The Oregon Department of Agriculture (ODA) continues to be in direct contact with the United States Environmental Protection Agency (EPA) regarding the January 22, 2004, order by the United States District Court for the Western District of Washington. This order places additional restrictions on the use of certain pesticides along Oregon waterways identified as supporting coho salmon, chinook salmon, steelhead and Columbia River chum. These additional restrictions include ”buffer zones’.
EPA and ODA have created maps specific to each Oregon county that identify the waterways to be ”buffered’. The basis for these maps is information from a federal database, known as ”Streamnet’, specifically named in the federal court order. ODA maps are in Adobe Acrobat PDF form by county and TRS. The EPA maps are interactive, allowing the user to click on the map to zoom in to a particular location.
ODA has made the currently available maps as accurate as possible, given the source information and staff resources. We do however encourage you to consult EPA´s maps and streamnet to verify the buffer requirements for streams prior to making pesticide applications with listed active ingredients.
Not all counties have impacted waterways for all four species. For example, apparently only Clatsop, Columbia and Multnomah Counties have waterways impacted due to the Columbia River chum. And, as many as ten counties have no waterways impacted under this federal court order.
Maps for:
Baker County - No impacted waterways identified; no maps
Benton County - 5/12/2008
Clackamas County - 1/13/2005
Clatsop County - 5/12/2008
Columbia County - 5/12/2008
Coos County - 5/12/2008
Crook County - 1/13/2005
Curry County - 3/20/2006
Deschutes County - No impacted waterways identified; no maps
Douglas County - 5/12/2008
Gilliam County - 1/13/2005
Grant County - 1/13/2005
Harney County - No impacted waterways identified; no maps
Hood River County - 1/13/2005
Jackson County - 1/13/2005
Jefferson County - 1/13/2005
Josephine County - 1/13/2005
Klamath County - No impacted waterways identified; no maps
Lake County - No impacted waterways identified; no maps
Lane County - 5/12/2008
Lincoln County - 5/12/2008
Linn County - 1/14/2005
Malheur County - No impacted waterways identified; no maps
Marion County - 1/14/2005
Morrow County - 1/14/2005
Multnomah County - 1/14/2005
Polk County - 3/20/2006
Sherman County - 1/14/2005
Tillamook County - 5/12/2008
Umatilla County - 1/14/2005
Union County - 1/14/2005
Wallowa County - 1/14/2005
Wasco County - 1/14/2005
Washington County - 5/12/2008
Wheeler County - 1/14/2005
Yamhill County - 5/12/2008
Note: Dates represent the modification date of the document and may not correspond with the revision dates of the maps within the document.
As specified in the court order, these maps are created using GIS data provided from www.streamnet.org. To obtain this source data, go to the following website address:
http://www.streamnet.org/online-data/GISData.html
EPA´s interactive mapping site
State of Washington buffer zone maps
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