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Columbia County
Columbia County Weed Control
Columbia SWCD
2514 Sykes Road
St. Helens, OR 97051
columbia.swcd@oacd.org
503.397.4555
 
Cooperative Weed Management Areas
North Coast CWMA
Glenn Ahrens, Lead Contact  
2001 Marine Dr,  Rm 210
Astoria, OR 97103  
glenn.ahrens@oregonstate.edu
503.325.8573