mouth hylebos/blair slip 1
DESCRIPTION
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. - PowerPoint PPT PresentationTRANSCRIPT
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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
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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
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Photos 7/1/03 Dalton Olmsted Fugelvand
Completed Wayconn Intertidal Excavation
Dunlap Excavation in progress
General Metals Peninsula Habitat Improvement & Adjacent Excavation
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Cleanup Work Planned for 2004Lockheed 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
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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
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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
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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
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Head of Middle Waterway
Cleanup of subsurface sediments to be conducted by DNR in summer 2004
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Status of Sites in RI/FS
Lower Duwamish Waterway
Portland Harbor
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Lower DuwamishWaterway Site
Source Control
Remedial Investigation
Feasibility Study
Early Cleanup Actions
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Portland Harbor Site
Portland HarborSampling Area
River Miles2 -11
RM 2
RM 11