custom plywood mill site anacortes
TRANSCRIPT
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Custom Plywood Mill Site Anacortes
Interim Action Cleanup Plan
Open House and Public Meeting
February 24, 2011
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February 24, 2011
4:30pm Open House5:15pm Welcome and Introduction
5:20pm
1. Introductory Remarks2. Presentation:
•Uplands Cleanup•In-water Cleanup
3. Next Steps6:00pm Questions and Discussions6:30pm Concluding Remarks
Tonight’s Agenda for Public Meeting
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February 24, 2011
Project Team
Sandra Caldwell: Bay-Wide Coordinator Peter Adolphson: Sediment Cleanup Work Hun Seak Park: Site Manager/Upland
Cleanup Work
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February 24, 2011
Interim Action Work Plan for Public Review
Draft Remedial Investigation Report Draft Feasibility Study Report – including Fidalgo
Bay Background Dioxin Study (June 2010) Draft Cleanup Action Plan – Upland Remediation
(Phase I)- including Archeological Monitoring Plan Draft Engineering Design Report – Upland
Remediation (Phase I) State Environmental Policy Act (SEPA) Checklist
and Notice of draft MDNS (Phase I)
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February 24, 2011
The Puget Sound Initiative
Began in 2005 and 2006 Includes a lot of people,
organizations and governments Cleanup Program focuses on
contaminated site cleanup 2020 goal to have most work
done
Background….
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February 24, 2011
Port Angeles
Port Gamble
Oakland Bay
Budd Bay
Dumas Bay
Port Gardner
Fidalgo/Padilla Bays Critical habitat exists Active cleanups are going on Baywide characterizations
have been conducted at six bays
There are over 30 cleanup actions on-going in these Priority Bays
The Puget Sound Initiative
Seven Priority Bays
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February 24, 2011
Fidalgo Bay– one of the PSI Bays
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February 24, 2011
Scott Paper Mill Site: Before and AfterAfter - Scott Paper Mill Site
Before- Scott Paper Mill Site
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February 24, 2011
Custom Plywood Site – Current View
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February 24, 2011
Cleanup Action Plan
Summer of 2011: Upland Cleanup Work
2012 ~ 2013: In-Water Cleanup Work
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February 24, 2011
History of Site Operations1913 ~ Late 30’s:Sawmill and Box Factory
Late 1930 ~ 92:Veneer and plywood plant
•November 1992: Largely destroyed in a fire•No industrial activities for last 19 yrs.
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February 24, 2011
Custom Plywood Aerial Photo: Site Lay-out
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February 24, 2011
General Site Descriptions Upland Area: – approx. 7 acre upland area; mostly
unpaved, industrial zone & ¼ acre of wetland
Visible structures, wood pilings; silty clay/ sand/gravel mixed with wood waste/bricks and sawdust and waste logs; dense native clay layer
Intertidal/Marine Area: approx. 440 acre of Site (34 ac –property)
Creosote wood pilings, wood debris, sawdust, bricks; large concrete platform supported former plant building
Dioxins contaminated sediment
Sensitive ecosystem
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February 24, 2011
Why Interim Action? On-going shoreline erosion leading to
contaminant pathway into bay Significant environmental damage
during January 2010 storm surge Urgent need to prevent further
environmental damage through erosion and transport of contaminated materials to the Bay
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February 24, 2011
Proposed Cleanup Summary
A. Upland Cleanup: Physical hazard removal: creosote pilings and
debris Soil removal and off-site disposal Wetland mitigation
B. Aquatic Cleanup: Physical hazard removal: creosote pilings and
debris Marine sediment remediation and disposal Shoreline protection and habitat restoration
C. Public Access & City’s Stormwater Conveyance
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February 24, 2011
Remedial Investigation Effort (2008 through 2010)
Comprehensive RI Study on Uplands & Sediment Uplands Study: Numerous soil and groundwater samples; test pits
samples in intertidal zone; Assessment of archeological survey; Supplemental tideland debris investigation &
archeological monitoring; Sediment Studies –total 99 locations July 2008: Tiered approach- bioassay and chemical
analyses June 2010: Fidalgo Bay Dioxin Background Study December 2010: Dioxin Study at intertidal area
included vibracore sampling method
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February 24, 2011
Remedial Investigation Results - Uplands
• Indicator Hazardous Substances Soil:
Metals (As, Cd, Cu, Pb, Ni, Zn, Hg, etc.) sVOCs: cPAHs, PCBs TPH-Dx & lube oil range
Groundwater/Surface water (seep): Metals (As, Cu, Ni, Zn, etc.) sVOCs: cPAHs TPH-Dx & lube oil range
• Magnitude of soil Impacted (estimated): Area: 3.2 acre Volume: 25,000 ~ 40,000 cy
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February 24, 2011
Aerial Extent of Impacted Soil
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February 24, 2011
Upland Cleanup Action
Physical hazard removal: near surface debris and subsurface foundations and pilings
Soil removal and off-site disposal: Soil excavation: 26,000 cy; backfill with clean imported soil Excavate up to 15 feet deep in shoreline protection zone and
press pits areas.
Construction of new estuarine wetland and stormwaterconveyance system
Long-term groundwater monitoring
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February 24, 2011
Upland Cleanup Action Proposed: Plan View
Shoreline protection Zone
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February 24, 2011
Wetland Mitigation Plan & Stormwater Swale
Restore one consolidated on-site 12,000 sfEstuarine-type wetland
Upland buffer (50 ~ 75 feet) in width – native vegetation
Temporary berm along the opening at OHW line during upland construction
Installation of stormwater swale Post-construction stormwater & confirmational
monitoring & maintenance required
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February 24, 2011
Wetland Mitigation Plan - Plan view
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February 24, 2011
Public Access to Shoreline Areas
Wetland Mitigation Area
Breakwater Extension Area
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In-Water Cleanup Work Removal of Marine Construction Debris
and Pilings Sediment Remediation – Dioxin and
Wood Waste Shoreline Protection & Habitat
Restoration Work
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February 24, 2011
Remedial Investigation Results – In-water
• Indicator Hazardous Substances: Bioassay Failure Wood waste/debris @ nearshore area (deleterious impact) Dioxins/Furans
• Sediment Area Impacted by Dioxin: Approx. 440 Acre @> Fidalgo Bay Background Level (1.4 ppt)
22 Acre - greater than 10 ppt 3.2 Acre – greater than 25 ppt
• Sediment volume impacted by Dioxin: 19,000 cy: 10 ~ 24 ppt 1,400 cy: >25 ppt –
• Total wood waste volume: 50,000 cy
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Bioassay failures
1300ft
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Wood debris, Pilings and construction debris
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February 24, 2011
Impacted Sediment Area for Dioxin: Nearshore
Approximate acreage of sediment impacted
Note: Based on data collected till June 2010.
5~10ppt
10~15ppt
15~25ppt
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February 24, 2011
Fidalgo/Padilla Bay Study Area:Dioxin/Furan
Natural Dioxin Background of Fidalgo Bay is 1.4 ppt(part per trillion) TEC (toxicity equivalent concentrations)
Custom Plywood Site Near-shore
Natural Dioxin Background of Padilla Bay is 1.0 ppt (part per trillion) TEC
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February 24, 2011
Proposed In-water Cleanup Action
Nearshore surface debris and marine structures/creosote piling removal
Excavation/dredging or capping areas with greatest accumulations of wood waste and the highest Dioxin concentrations; Dredging/excavation: total 28,000 cy Thin Layer Cap (19,000 cy), monitoring Dewatering and off-site upland disposal Backfilling
Construction of aquatic spit and breakwater extension for the protection of shoreline and improve the Habitat.
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February 24, 2011
In-water Cleanup Action Proposed: Plan View
Breakwater Extension
Wood Waste
Removal
Full Dredge
Shoreline Protection/ Habitat Restoration Spit
Full Intertidal Excavation
Thin Layer Cap
Area impacted by Dioxins>10ppt
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February 24, 2011
Goals: Shoreline Protection and Habitat Restoration
Wave Erosion and Habitat Restoration Consideration: Prevent shoreline erosion that
could expose residual contaminants to aquatic environment
Minimize use of rock amoring Preservation of mitigated
estuarine wetland Habitat enhancement for forage
fish spawning & juvenile salmonid foraging
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February 24, 2011
Proposed Spit/Breakwater–Extension Structure
Breakwater Extension
Shoreline Protection/ Habitat Restoration
Spit
Fish Migration Corridor
Softened Beach for Fish Habitat
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February 24, 2011
Scott Paper Mill Site: Before and AfterExample of softened beach for fish habitat
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Public Outreach: Custom Plywood Mill Site
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February 24, 2011
Future View from the Southernmost Portion of the Site
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February 24, 2011
What’s Next under Interim Action?
Custom Plywood Mill Site DatePublic Comment: Ecology-lead Interim Action- Draft RI/FS Report and CAP and EDR (for Upland Remediation)
Feb ~ March 2011
Design Specification/Bidding for Upland Construction Phase
IFeb ~ May 2011
Upland Field Construction June ~ October 2011
JARPA Application for In-Water Work
Phase II
May 2011 ~ Feb 2012
Public Comment: Ecology-lead Interim Action: RI/FS Addendum (?) and CAP and EDR (for In-Water Remediation)
Feb ~ May 2012
In-water Field Construction June 2012 ~ October 2013
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February 24, 2011
YOUR INPUT IS VALUABLE
Fill out a comment form tonight Visit Ecology’s Toxics Cleanup Website at: http://www.ecy.wa.gov/programs/tcp/sites/custom_ply/custom_ply_hp.htm
Review the Custom Plywood Site documents at the Anacortes Public Library
Send your comments to:Hun Seak Park – Site ManagerWA Department of EcologyToxics Cleanup ProgramPO Box 47600Olympia, WA 98504-7600E-mail: [email protected]
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Future of Custom Plywood Mill Site