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Mouth Hylebos/Blair Slip 1

Mouth Hylebos/Blair Slip 1. Approximate size : 50 Acres Volume : 300,000 cy disposed in Slip 1 Contaminants : PCBs, Pb, Hg, Ni, Cu Parties performed work : Port of Tacoma and Occidental Confirmation sampling demonstrates success Further worked planned. Head of Hylebos.

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Mouth Hylebos/Blair Slip 1

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  1. Mouth Hylebos/Blair Slip 1 • Approximate size: 50 Acres • Volume: 300,000 cy disposed in Slip 1 • Contaminants: PCBs, Pb, Hg, Ni, Cu • Parties performed work: Port of Tacoma and Occidental • Confirmation sampling demonstrates success • Further worked planned

  2. Head of Hylebos • Volume/area: excavation/capping of 5.5 acres of bank/intertidal (40,000 cy) and habitat improvements • Contaminants: Primarily PCBs, PAHs • Work performed by: General Metals and Atofina • Relocation of Hylebos Marina • Complexity of “source control” • e.g., Atofina groundwater seeps

  3. Dunlap Excavation in progress General Metals Peninsula Habitat Improvement & Adjacent Excavation Completed Wayconn Intertidal Excavation Photos 7/1/03 Dalton Olmsted Fugelvand

  4. Cleanup Work Planned for 2004 • Lockheed Shipyard • Todd Shipyard • Commencement Bay - Mouth of Thea Foss Waterway - Head of Hylebos Waterway - Mouth of Hylebos Waterway/Blair Slip 1 - Head of Middle Waterway

  5. Todd Shipyard • Area: 40 acres • Volume – est. 200,000 cy dredged • Contaminants: As, Cu, Pb, Zn, Hg, TBT, Zn, PCBs, PAH • Major source control upgrades with cleanup • Pier replacement • Create additional habitat

  6. Cleanup Work Planned for 2004 • Thea Foss • hydraulically dredge 525,000 cy of sediments • cap 21 acres • remove and replace 5 marinas • construct a new marina in front of Glass Museum • mitigation projects in the Middle Waterway, St. Paul Waterway, Puyallup River Side Channel • bank stabilization and creation of pocket beaches throughout the waterway

  7. Head of Hylebos • General Metals & Atofina Chemicals • “Precision” dredging 45 acres – 370,000 cy • Contaminants: PCBs, PAHs, metals • July 15, 2004 - February 15, 2005 • By rail to Roosevelt Regional Landfill

  8. Head of Middle Waterway • Cleanup of subsurface sediments to be conducted by DNR in summer 2004

  9. Status of Sites in RI/FS • Lower Duwamish Waterway • Portland Harbor

  10. Lower DuwamishWaterway Site Source Control Remedial Investigation Feasibility Study Early Cleanup Actions

  11. Portland Harbor Site RM 2 Portland Harbor Sampling Area River Miles 2 -11 RM 11

  12. Lori Cohen Office of Environmental Cleanup EPA/Region 10 206-553-6523 cohen.l@epa.gov

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