Ballast Water and Shipping Patterns in Washington State Considerations for Siting of Alternative Ballast Water Exchange Zones Kevin Anderson Puget Sound Action Team
Trading Partners - Arrivals By Last Port of Call July 2004 to June AsiaUSA*CanadaOther # of vessels WA ports on Columbia RPuget Sound ports *1/2 ships arriving in Puget Sound are from California, the rest are from Alaska and Columbia R. Source: Washington Department of Fish and Wildlife n ~ 4, Percent
Total Volume of Ballast Water Discharged Reported by Ship Operators /03 -06/0307/03-12/0301/04-06/0407/04-12/0401/05-06/0507/05-12/05 Million cubic meters Columbia River portsPuget Sound ports Source: Washington Department of Fish and Wildlife
Unexchanged Ballast Water Discharged to Puget Sound Ports /03-6/037/03-12/031/04-6/047/04-12/041/05-6/057/05-12/05 Thousand cubic meters Total unexchanged ballast water dischargedVolume from California Source: Washington Department of Fish and Wildlife
Unexchanged Ballast Water Discharged to Columbia River Ports /03 -06/0307/03-12/0301/04-06/0407/04-12/0401/05-06/0507/05-12/05 Cubic meters X 1,000 Total unexchanged ballast water dischargedVolume from California Source: Washington Department of Fish and Wildlife
An Estuary of High Biological Diversity and Abundance Exclude from ABWEZ consideration
Operational considerations
Biological considerations (Photos: Orca – Center for Whale Research, Copper rock fish – Jim Ramaglia, Shellfiish area – Taylor Shellfish Farms) Center for Whale Research photo
Oceanographic consideration
Source: Larson, Foreman, Levings and Tarbotton: “Dispersion of discharged ship ballast water in Vancouver Harbor Juan de Fuca Strait, and offshore of the Washington Coast.” NRC Canada 2003 Surface release of active organisms at peak ebb summer spring tide Strait of Juan de Fuca
Source: Larson, Foreman, Levings and Tarbotton: “Dispersion of discharged ship ballast water in Vancouver Harbor Juan de Fuca Strait, and offshore of the Washington Coast.” NRC Canada 2003 At depth release of passive organisms at peak flood winter neap tide
Intuitional considerations Washington state law National Invasive Species Act