Mouth Hylebos/Blair Slip 1
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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
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 Presentation
Transcript of 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 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
Photos 7/1/03 Dalton Olmsted Fugelvand
Completed Wayconn Intertidal Excavation
Dunlap Excavation in progress
General Metals Peninsula Habitat Improvement & Adjacent Excavation
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
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
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
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
Head of Middle Waterway
Cleanup of subsurface sediments to be conducted by DNR in summer 2004
Status of Sites in RI/FS
Lower Duwamish Waterway
Portland Harbor
Lower DuwamishWaterway Site
Source Control
Remedial Investigation
Feasibility Study
Early Cleanup Actions
Portland Harbor Site
Portland HarborSampling Area
River Miles2 -11
RM 2
RM 11
