Lower Duwamish Waterway

Facility Site ID: 42927743 Cleanup Site ID: 1643

  • Site Status

  • Cleanup Started

Background

訊息中文版
Información
en español
 
 
 Thông tin bằng
tiếng Việt


The Lower Duwamish Waterway site is approximately 5.5 mile portion of the Lower Duwamish River which flows into Elliott Bay. The Washington State Department of Ecology (Ecology) and the U.S. Environmental Protection Agency (EPA) are working to clean up contaminated sediments and control sources of recontamination in the Lower Duwamish Waterway. Ecology and EPA have joined into a legal agreement(Administrative Order on Consent) with the City of Seattle, King County, the Port of Seattle, and The Boeing Company to begin work in the waterway and upland areas.

The sediments along the river contain a wide range of contaminants due to years of industrial activity and run off from residential areas. These contaminants include PCBs (polychlorinated biphenyls), PAHs (polycyclic aromatic hydrocarbons), chlorinated dioxins & furans, metals, and phthalates.

EPA is leading the sediment contamination investigation for the Lower Duwamish Waterway site with support from Ecology. Ecology is leading the efforts to control sources of sediment pollution in the Lower Duwamish Waterway in cooperation with the City of Seattle, the Port of Seattle, King County, the City of Tukwila, and EPA.

Source Control is the process of working to find and control releases of pollution to waterway sediments to prepare for cleanup and prevent sediment recontamination. Finding and controlling sources is difficult, and even with aggressive source control some recontamination may occur.

Read more about the cleanup progress in the 2021 factsheet

View more information about cleanup and source control work in the Lower Duwamish Waterway!

Legal 7
Document Title Document Date Document Type
Lower Duwamish Waterway - AOC Amendment #5 7/10/2020 Interlocal/Interagency Agreement; Memorandum of Agreement or Understanding
AOC Amendment #4 7/9/2018 Interlocal/Interagency Agreement; Memorandum of Agreement or Understanding
AOC Amendment# 3 4/27/2016 Interlocal/Interagency Agreement; Memorandum of Agreement or Understanding
Memorandum of Agreement Between EPA and Ecology 11/20/2014 Interlocal/Interagency Agreement; Memorandum of Agreement or Understanding
AOC Amendment #2 7/17/2014 Interlocal/Interagency Agreement; Memorandum of Agreement or Understanding
LDW Memorandum of Understanding Between The United States Environmental Protection Agency and The Washinbgton Department of Ecology 4/16/2004 Interlocal/Interagency Agreement; Memorandum of Agreement or Understanding
ADMINISTRATIVE ORDER ON CONSENT FOR REMEDIAL INVESTIGATION/FEASIBILITY STUDY 1/2/2000 Administrative Order on Consent
Map 2
Document Title Document Date Document Type
Old & New River Channel 8/28/2012 Map
Accelerated Source Tracing Study – Duwamish_Tidal_Extent 3/31/2011 Map
Public Information 14
Document Title Document Date Document Type
2021 Cập Nhật Thông Tin Tẩy Nhiễm Địa Điểm Lower Duwamish 5/31/2021 Fact Sheet\Public Notices
2021 Sitios en el Lower Duwamish Waterway 5/31/2021 Fact Sheet\Public Notices
2021 Duwamish 河下游清理站點的新信息 5/31/2021 Fact Sheet\Public Notices
2021 Lower Duwamish Cleanup Sites Update 5/31/2021 Fact Sheet\Public Notices
2020 Duwamish 河下游清理站點的新信息 10/6/2020 Fact Sheet\Public Notices
2020 Cập Nhật Thông Tin Tẩy Nhiễm Địa Điểm Lower Duwamish 10/6/2020 Fact Sheet\Public Notices
2020 Sitios en el Lower Duwamish Waterway 10/6/2020 Fact Sheet\Public Notices
2020 Lower Duwamish Cleanup Sites Update 10/6/2020 Fact Sheet\Public Notices
Cập Nhật Thông Tin Về Địa Điểm Làm Sạch Lower Duwamish 2/2/2017 Fact Sheet\Public Notices
Actualización sobre la Limpieza de la Vía Fluvial del Bajo Duwamish 2/2/2017 Fact Sheet\Public Notices
2017 Lower Duwamish Cleanup Sites Update 1/5/2017 Fact Sheet\Public Notices
Childrens' Source Control Coloring Sheet Spanish (en Espanol) 8/20/2016 Fact Sheet\Public Notices
Source Control Overview Folio 8/20/2016 Fact Sheet\Public Notices
Childrens' Source Control Coloring Sheet 8/20/2016 Fact Sheet\Public Notices
Technical Reports 166
Document Title Document Date Document Type
Preliminary Cleanup Levels for Lower Duwamish Waterway 2/8/2022 Site Specific Technical Document - other
Preliminary Cleanup Levels Supplemental Information Document 2/8/2022 Site Specific Technical Document - other
Lower Duwamish Waterway Source Control Status Report 2019 11/2/2021 Progress Report
Lower Duwamish Waterway - Year 3 Monitoring Report: Enhanced Natural Recovery/Activated Carbon Pilot Study 10/20/2021 Site Specific Technical Document - other
Lower Duwamish Waterway Source Control Status Report 2018 5/17/2021 Site Specific Technical Document - other
Year 3 Data Package - Enhanced Natural Recovery/Activated Carbon Pilot Study 4/8/2021 Site Specific Technical Document - other
Year 2 Data Package - Enhanced Natural Recovery/Activated Carbon Pilot Study 12/10/2019 Site Specific Technical Document - other
Lower Duwamish Waterway Source Control Status Report 2017 6/30/2019 Site Specific Technical Document - other
Snopac Property - Agreed Order for Public Comment 6/5/2019 Site Specific Technical Document - other
Interim Action Work Plan, Snopac Property, Uplands Source Control, Seattle, Washington - Public Review Draft 6/4/2019 Site Specific Technical Document - other
Snopac Property Cleanup Site, Legal agreement ready for public review and comment 5/22/2019 Site Specific Technical Document - other
Year 1 Monitoring Report - Enhanced Natural Recovery/Activated Carbon Pilot Study 4/10/2019 Site Specific Technical Document - other
Re: Response to Preliminary Determination of Liability for Snopac Property, 5055 East Marginal Way South, Seattle 2/26/2019 Site Specific Technical Document - other
Re: Preliminary Determination of Liability for Release of Hazardous Substances at Snopac Property, 5055 East Marginal Way South, FSID 1523145 2/5/2019 Site Specific Technical Document - other
Lower Duwamish Waterway Preliminary Cleanup Level Workbook Supplemental Information 12/1/2018 Site Specific Technical Document - other
Chemical Loads Transported by the Green River to the Lower Duwamish Waterway near Seattle, Washington, 2013–17 11/13/2018 Site Specific Technical Document - other
Year 1 Data Package - Enhanced Natural Recovery/Activated Carbon Pilot Study 9/24/2018 Site Specific Technical Document - other
Construction Report - Enhanced Natural Recovery/Activated Carbon Pilot Study 6/1/2018 Construction Plans and Specifications
Lower Duwamish Waterway Source Control Status Report January 2014 through December 2016 6/1/2018 Site Specific Technical Document - other
Inventory of Lower Duwamish Waterway Slivers 5/1/2018 Site Specific Technical Document - other
Suspended-Sediment Transport from the Green-Duwamish River to the Lower Duwamish Waterway, Seattle, Washington, 2013–17 2/28/2018 Site Specific Technical Document - other
Suspended-sediment transport from the Green-Duwamish River to the Lower Duwamish Waterway, Seattle, Washington, 2013–17 2/28/2018 Site Specific Technical Document - other
Year 0 Data Package - Enhanced Natural Recovery/Activated Carbon Pilot Study 1/31/2018 Performance/Confirmational Monitoring Plan or Report
PCB Congener Study Database: Data Dictionary 1/31/2018 Site Specific Technical Document - other
PCB Congener Study Database 01-31-18 1/31/2018 Site Specific Technical Document - other
Appendix A, Chemical concentrations in water and suspended sediment, Green River to Lower Duwamish Waterway, 2016–17 1/5/2018 Site Specific Technical Document - other
Chemical concentrations in water and suspended sediment, Green River to Lower Duwamish Waterway, 2016–17 1/5/2018 Site Specific Technical Document - other
LDW Groundwater Sampling for PCB Congeners and Aroclors 7/14/2017 Site Specific Technical Document - other
PCB Congener Study Phase 2 Report 6/30/2017 Site Specific Technical Document - other
2017 Otter Scat Data Report 6/12/2017 Site Specific Technical Document - other
Groundwater Sampling for PCB Congeners & Aroclors - Sampling & Analysis Plan and Quality Assurance Project Plan 2/10/2017 Site Specific Technical Document - other
Final Fisher Study Data Report 12/23/2016 Site Specific Technical Document - other
PCBs in Sampling Equipment Tubing 11/23/2016 Site Specific Technical Document - other
USGS Green-Duwamish Loading Study Phase 3: 2016 QAPP 9/1/2016 Site Specific Technical Document - other
Lower Duwamish Waterway Source Control Strategy 6/7/2016 Site Specific Administrative Document - other (Administrative correspondence)
Green-Duwamish River Watershed PCB Congener Study: Phase 1 4/27/2016 Site Specific Technical Document - other
USGS Progress Report Green-Duwamish Loading Study Data 4/15/2016 Site Specific Technical Document - other
USGS Progress Report Green-Duwamish Loading Study 4/15/2016 Site Specific Technical Document - other
Groundwater cleanup levels for upland sites along the Lower Duwamish Waterway 3/1/2016 Site Specific Technical Document - other
USGS Green-Duwamish Loading Study Phase 2 Appendices: Chemical concentrations and instantaneous loads 1/4/2016 Site Specific Technical Document - other
USGS Green-Duwamish Loading Study Phase 2 Report - Chemical concentrations and instantaneous loads, 2013–15 1/4/2016 Site Specific Technical Document - other
Carbon Amendment Pilot Study - Design Report 12/7/2015 Site Specific Technical Document - other
S 96th Street and Hamm Creek Sediment Trap and Creek Sampling Data Report, LDW NPDES Inspection Sampling Support Project 7/6/2015 Site Specific Technical Document - other
Lower Duwamish Waterway 2014/2015 NPDES Inspection Sampling Support - Appendix X: Samson Tug & Barge 6/30/2015 Site Specific Technical Document - other
Lower Duwamish Waterway 2014/2015 NPDES Inspection Sampling Support - Appendix W: Waste Management 8th Avenue S 6/30/2015 Site Specific Technical Document - other
Lower Duwamish Waterway 2014/2015 NPDES Inspection Sampling Support - Appendix V: Waste Management Eastmont Transfer Station 6/30/2015 Site Specific Technical Document - other
Lower Duwamish Waterway 2014/2015 NPDES Inspection Sampling Support - Appendix U: Alaska Street Reload 6/30/2015 Site Specific Technical Document - other
Lower Duwamish Waterway 2014/2015 NPDES Inspection Sampling Support - Appendix T: Duwamish Substation 6/30/2015 Site Specific Technical Document - other
Lower Duwamish Waterway 2014/2015 NPDES Inspection Sampling Support - Appendix S: South Service Center 6/30/2015 Site Specific Technical Document - other
Lower Duwamish Waterway 2014/2015 NPDES Inspection Sampling Support - Appendix R: Boeing Developmental Center 6/30/2015 Site Specific Technical Document - other
Lower Duwamish Waterway 2014/2015 NPDES Inspection Sampling Support - Appendix Q: Insurance Auto Auctions 6/30/2015 Site Specific Technical Document - other
Lower Duwamish Waterway 2014/2015 NPDES Inspection Sampling Support - Appendix P: Chemithon Corporation 6/30/2015 Site Specific Technical Document - other
Lower Duwamish Waterway 2014/2015 NPDES Inspection Sampling Support - Appendix O: South Park Marina 6/30/2015 Site Specific Technical Document - other
Lower Duwamish Waterway 2014/2015 NPDES Inspection Sampling Support - Appendix N: Unified Grocers 6/30/2015 Site Specific Technical Document - other
Lower Duwamish Waterway 2014/2015 NPDES Inspection Sampling Support - Appendix M: Puget Sound Coatings 6/30/2015 Site Specific Technical Document - other
Lower Duwamish Waterway 2014/2015 NPDES Inspection Sampling Support - Appendix L: Recology CleanScapes 6/30/2015 Site Specific Technical Document - other
Lower Duwamish Waterway, 2014/2015 NPDES Inspection Sampling Support - Main Report 6/30/2015 Site Specific Technical Document - other
Sherlock Database Update Tech Memo, May 2015 5/26/2015 Site Specific Technical Document - other
Cement Kiln Dust: Summary of Existing Information, Lower Duwamish Waterway 4/1/2015 Site Specific Technical Document - other
Lower Duwamish Waterway NPDES Inspection Sampling Support - Appendix A: Shultz Distributing 1/1/2015 Site Specific Technical Document - other
Lower Duwamish Waterway NPDES Inspection Sampling Support - Appendix K: UPRR-Argo Yard 1/1/2015 Site Specific Technical Document - other
Lower Duwamish Waterway NPDES Inspection Sampling Support - Appendix J: Lafarge Cement 1/1/2015 Site Specific Technical Document - other
Lower Duwamish Waterway NPDES Inspection Sampling Support - Appendix I: Alaska Marine Lines 1/1/2015 Site Specific Technical Document - other
Lower Duwamish Waterway NPDES Inspection Sampling Support - Appendix H: Cadman 1/1/2015 Site Specific Technical Document - other
Lower Duwamish Waterway NPDES Inspection Sampling Support - Appendix G: King County International Airport 1/1/2015 Site Specific Technical Document - other
Lower Duwamish Waterway NPDES Inspection Sampling Support - Appendix F: Emerald Services 1/1/2015 Site Specific Technical Document - other
Lower Duwamish Waterway NPDES Inspection Sampling Support - Appendix E: ConGlobal Industries 1/1/2015 Site Specific Technical Document - other
Lower Duwamish Waterway NPDES Inspection Sampling Support - Appendix D: Northland Services 1/1/2015 Site Specific Technical Document - other
Lower Duwamish Waterway NPDES Inspection Sampling Support - Appendix C: Independent Metals 1/1/2015 Site Specific Technical Document - other
Lower Duwamish Waterway NPDES Inspection Sampling Support - Appendix B: General Recycling 1/1/2015 Site Specific Technical Document - other
Lower Duwamish Waterway NPDES Inspection Sampling Support - Main Report 1/1/2015 Site Specific Technical Document - other
Carbon Amendment Pilot Study - QAPP 10/24/2014 Site Specific Technical Document - other
Green-Duwamish River Watershed Compendium of Existing Environmental Information 10/15/2014 Site Specific Technical Document - other
Data Compilation for Assessing Sediment and Toxic Chemical Loads from the Green River to the Lower Duwamish Waterway,Appendix Tables 9/23/2014 Site Specific Technical Document - other
Data Compilation for Assessing Sediment and Toxic Chemical Loads from the Green River to the Lower Duwamish Waterway, Washington 9/23/2014 Site Specific Technical Document - other
Lower Duwamish Waterway, Source Control Status Report, January through December 2013 6/1/2014 Site Specific Technical Document - other
Lower Duwamish Waterway, Outfall Inventory Update, January 2012 - February 2014 3/1/2014 Site Specific Technical Document - other
Lower Duwamish Waterway, Outfall Inventory Update Tech Memo, January 2012 - February 2014 3/1/2014 Site Specific Technical Document - other
Lower Duwamish Waterway, Technical Memorandum: Review of Urban Canada Geese as Vectors of PCB Contamination 3/1/2014 Site Specific Technical Document - other
Lower Duwamish Waterway Air Deposition Scoping Study, Data Gaps Report 12/1/2013 Site Specific Technical Document - other
Lower Duwamish Waterway Source Control Action Plan Handbook 12/1/2013 Site Specific Technical Document - other
QAPP Sediment and Toxic Chemical Loads from the Green River - Phase I I 10/23/2013 Site Specific Technical Document - other
Lower Duwamish Waterway, RM 4.2 to 5.8 West (Restoration Areas), Source Control Action Plan, Publication No. 13-09-138 9/1/2013 Site Specific Technical Document - other
Lower Duwamish Waterway, RM 3.8 to 4.2 West, Sea King Industrial Park, Source Control Action Plan, Publication No. 13-09-137 8/1/2013 Site Specific Technical Document - other
Lower Duwamish Waterway, RM 4.2 to 5.8 West (Restoration Areas), Summary of Existing Information and Identification of Data Gaps 7/1/2013 Site Specific Technical Document - other
Lower Duwamish Waterway, Source Control Status Report, January 2012 through December 2012 6/1/2013 Site Specific Technical Document - other
Lower Duwamish Waterway, RM 3.8 to 4.2 West, Sea King Industrial Park, Summary of Existing Information and Identification of Data Gaps 5/1/2013 Site Specific Technical Document - other
Lower Duwamish Waterway, RM 2.1 West (1st Avenue South Storm Drain), Source Control Action Plan, Publication No. 12-09-138 3/1/2013 Site Specific Technical Document - other
Evolution of Integrated Lower Watershed Source Control 2002-2012 For the Lower Duwamish Waterway (LDW) - Seattle, Washington 2/13/2013 Site Specific Technical Document - other
Lower Duwamish Waterway, RM 0.0 to 1.0 West (Spokane Street to Kellogg Island), Source Control Action Plan, Publication No. 12-09-137 2/1/2013 Site Specific Technical Document - other
QAPP Assessing Sediment and Toxic Chemical Loads from the Green River - Phase I 1/3/2013 Site Specific Technical Document - other
Lower Duwamish Waterway, RM 2.1 West (1st Avenue South Storm Drain), Summary of Existing Information and Identification of Data Gaps 9/1/2012 Site Specific Technical Document - other
Lower Duwamish Waterway, RM 0.0 to 1.0 West (Spokane Street to Kellogg Island), Summary of Existing Information and Identification of Data Gaps 9/1/2012 Site Specific Technical Document - other
Lower Duwamish Waterway, RM 2.2 to 3.4 West (Riverside Drive), Source Control Action Plan 8/1/2012 Site Specific Technical Document - other
Lower Duwamish Waterway Source Control Status Report, October 2010 through December 2011 7/1/2012 Site Specific Technical Document - other
Lower Duwamish Waterway RM 2.2-3.4 West Riverside Drive. Summary of Existing Information and Identification of Data Gaps. 4/1/2012 Site Specific Technical Document - other
Lower Duwamish Waterway Bank Sampling Summary Report, Seattle, Washington 3/13/2012 Site Specific Technical Document - other
Re: Monitoring Well Decommissioning Washington State Liquor Control Board (WSLCB) Seattle, Washington 1/31/2012 Site Specific Technical Document - other
Accelerated Source Tracing Study, Lower Duwamish Waterway. Data Report. 12/1/2011 Site Specific Technical Document - other
Lower Duwamish Waterway, Source Tracing Data Evaluation: Stormwater Pathway 12/1/2011 Site Specific Technical Document - other
Stormwater Lateral Loading Study, Lower Duwamish Waterway, WA. Data Report. 12/1/2011 Site Specific Technical Document - other
Lower Duwamish Waterway, RM 1.6 to 2.1 West (Terminal 115), Source Control Action Plan 10/1/2011 Site Specific Technical Document - other
Surface Sediment Sampling at Outfalls in the Lower Duwamish Waterway, Seattle, WA 10/1/2011 Site Specific Technical Document - other
Sampling and Analysis Plan/Quality Assurance Project Plan, Puget Sound Truck Lines Site 7/29/2011 Site Specific Technical Document - other
Data Report, Washington State Liquor Control Board Site 7/28/2011 Site Specific Technical Document - other
NPDES Permit Review for Regulating Stormwater During Construction, Excavation, and Demolition Activities at MTCA Sites in the Lower Duwamish Waterway 7/27/2011 Site Specific Technical Document - other
Literature Review of Existing Treatment Technologies for Industrial Stormwater 7/22/2011 Site Specific Technical Document - other
Sampling and Analysis Plan/Quality Assurance Project Plan, Former Snopac Products, Inc. Site 6/29/2011 Site Specific Technical Document - other
Lower Duwamish Waterway, RM 1.0 to 1.3 West (Kellogg Island to Lafarge) Source Control Action Plan 6/1/2011 Site Specific Technical Document - other
Lower Duwamish Waterway, Survey of Potential PCB-Containing Building Material Sources. Summary Report 6/1/2011 Site Specific Technical Document - other
Lower Duwamish Waterway RM 1.6 to 2.1 West (Terminal 115), Summary of Existing Information and Identification of Data Gaps 6/1/2011 Site Specific Technical Document - other
Sampling and Analysis Plan/Quality Assurance Project Plan, Lower Duwamish Waterway Bank Sampling 5/9/2011 Site Specific Technical Document - other
Sampling and Analysis Plan/Quality Assurance Project Plan, Washington State Liquor Control Board Site 4/15/2011 Site Specific Technical Document - other
Lower Duwamish Waterway RM 1.0 to 1.3 West (Kellogg Island to Lafarge), Summary of Existing Information and Identification of Data Gaps 4/1/2011 Site Specific Technical Document - other
Lower Duwamish Waterway Survey of Potential PCB-Containing Building Material Sources, Sampling and Analysis Plan and Quality Assurance Project Plan 3/25/2011 Site Specific Technical Document - other
Surface Sediment Sampling at Outfalls in the Lower Duwamish Waterway, Sampling and Analysis Plan/Quality Assurance Project Plan 2/25/2011 Site Specific Technical Document - other
Summary of Existing Information Report, Puget Sound Truck Lines Site 2/15/2011 Site Specific Technical Document - other
Lower Duwamish Waterway Outfall Sediment Survey, Public Outreach Plan 2/1/2011 Site Specific Technical Document - other
Summary of Existing Information Report, Washington State Liquor Control Board Site 1/27/2011 Site Specific Technical Document - other
Summary of Existing Information Report, Former Snopac Products Inc. Site 1/27/2011 Site Specific Technical Document - other
Lower Duwamish Waterway, RM 1.0 to 1.2 East (King County Lease Parcels), Source Control Action Plan 1/1/2011 Site Specific Technical Document - other
Stormwater Lateral Loading Study, Lower Duwamish Waterway, Combined Sampling and Analysis Plan and Quality Assurance Project Plan 12/21/2010 Site Specific Technical Document - other
Accelerated Source Tracing Study, Lower Duwamish Waterway, WA; Combined Sampling and Analysis Plan and Quality Assurance Project Plan 12/14/2010 Site Specific Technical Document - other
Sub-basin Evaluation for use in the Accelerated Source Tracing Study 12/14/2010 Site Specific Technical Document - other
Evaluation of Lateral Loading Models 12/14/2010 Site Specific Technical Document - other
Lower Duwamish Waterway RM 4.3 to 4.9 East (Boeing Developmental Center) Source Control Action Plan 12/9/2010 Site Specific Technical Document - other
Lower Duwamish Waterway RM 4.3 to 4.9 East (Boeing Developmental Center, Summary of Existing Information and Identification of Data Gaps 9/1/2010 Site Specific Technical Document - other
Lower Duwamish Waterway RM 1.0 to 1.2 East (King County Lease Parcels), Summary of Existing Information and Identification of Data Gaps 6/1/2010 Site Specific Technical Document - other
Contaminant Loading to the Lower Duwamish Waterway from Suspended Sediment in the Green River 11/1/2009 Site Specific Technical Document - other
Lower Duwamish Waterway, Early Action Area 1, Duwamish/Diagonal Way (RM 0.1 to 0.9 East), Summary of Existing Information and Identification of Data Gaps for the Duwamish/Diagonal CSO/SD Basin 8/1/2009 Site Specific Technical Document - other
Final Report, Duwamish River Sediment Sampling and Analysis, RM 4.9 to 7.4 6/30/2009 Site Specific Technical Document - other
Scoping of Lateral Loading Study 6/30/2009 Site Specific Technical Document - other
Scoping of Lateral Loading Study, Lower Duwamish Waterway, WA: Site Reconnaissance Report 6/1/2009 Site Specific Technical Document - other
Previous Studies and Existing Data. Scoping of Lateral Loading Study, Lower Duwamish Waterway, WA 6/1/2009 Site Specific Technical Document - other
Lower Duwamish Waterway, RM 2.3-2.8 East (Seattle Boiler Works to Slip 4) Source Control Action Plan, Publication No. 09-09-083 6/1/2009 Site Specific Technical Document - other
Lower Duwamish Waterway River Mile 1.2-1.7 East (Saint Gobain to Glacier Northwest), Source Control Action Plan 6/1/2009 Site Specific Technical Document - other
Lower Duwamish Waterway River Mile 0.0-0.1 East (Spokane Street to Ash Grove Cement), Source Control Action Plan 6/1/2009 Site Specific Technical Document - other
Lower Duwamish Waterway, RM 1.7 to 2.0 East (Slip 2 to Slip 3), Source Control Action Plan, Publication No. 09-09-085 6/1/2009 Site Specific Technical Document - other
Lower Duwamish Waterway, RM 0.9-1.0 East (Slip 1), Source Control Action Plan, Publication No. 09-09-084 5/1/2009 Site Specific Technical Document - other
LDW RM 2.0 to 2.3 E (Slip 3 to Seattle Boiler Works) Source Control Action Plan 4/1/2009 Site Specific Technical Document - other
Lower Duwamish Waterway, RM 3.7-3.9 East (Early Action Area 6), Source Control Action Plan, Publication No. 09-09-082 3/1/2009 Site Specific Technical Document - other
Lower Duwamish Waterway RM 1.2-1.7 East (Saint Gobain to Glacier Northwest) Summary of Existing Information and Identification of Data Gaps Report 2/1/2009 Site Specific Technical Document - other
Lower Duwamish Waterway, RM 1.7 to 2.0 East (Slip 2 to Slip 3), Summary of Existing Information and Identification of Data Gaps 2/1/2009 Site Specific Technical Document - other
Lower Duwamish Waterway River Mile 0.0-0.1 East (Spokane St. to Ash Grove Cement), Summary of Existing Information and Identification of Data Gaps 12/1/2008 Site Specific Technical Document - other
Lower Duwamish Waterway, River Mile 3.9-4.3 East (Slip 6), Source Control Action Plan, Publication 08-09-001 9/1/2008 Site Specific Technical Document - other
Lower Duwamish Waterway RM 0.9 to 1.0 East, Slip 1, Summary of Existing Information and Identification of Data Gaps 8/1/2008 Site Specific Technical Document - other
Lower Duwamish Waterway River Mile 2.0-2.3 East (Slip 3 to Seattle Boiler Works) Source Control Area, Summary of Existing Information and Identification of Data Gaps (Final Report) 6/1/2008 Site Specific Technical Document - other
Lower Duwamish Waterway RM 3.7-3.9 East, Early Action Area 6, Summary of Existing Information and Identification of Data Gaps 5/1/2008 Site Specific Technical Document - other
Lower Duwamish Waterway RM 2.3-2.8 East, Seattle Boiler Works to Slip 4, Summary of Existing Information and Identification of Data Gaps 5/1/2008 Site Specific Technical Document - other
Lower Duwamish Waterway RM 3.9-4.4 East (Slip 6), Summary of Existing Information and Identification of Data Gaps, Final Report 2/1/2008 Site Specific Technical Document - other
Lower Duwamish Waterway Source Control Action Plan for Early Action Area 4; Publication No. 07-09-004 12/1/2007 Site Specific Technical Document - other
Lower Duwamish Waterway Source Control Action Plan for Glacier Bay Source Control Area; Publication No. 07-09-005 11/1/2007 Site Specific Technical Document - other
Lower Duwamish Waterway Early Action Area 7, Final Summary of Existing Information and Identification of Data Gaps Report 9/28/2007 Site Specific Technical Document - other
Lower Duwamish Waterway Source Control Action Plan for Early Action Area 7; Publication No. 07-09-003 9/1/2007 Site Specific Technical Document - other
Lower Duwamish Waterway, Early Action Area 4, Final Summary of Existing Information and Identification of Data Gaps Report FIgures and Tables 6/1/2007 Site Specific Technical Document - other
Lower Duwamish Waterway, Early Action Area 4, Final Summary of Existing Information and Identification of Data Gaps Report 6/1/2007 Site Specific Technical Document - other
Lower Duwamish Waterway Source Control Action Plan for Early Action Area 2. Publication No. 07-09-002. 6/1/2007 Site Specific Technical Document - other
Lower Duwamish Waterway, Glacier Bay Source Control Area, Summary of Existing Information and Identification of Data Gaps 6/1/2007 Site Specific Technical Document - other
Lower Duwamish Waterway, Early Action Area 2, Summary of Existing Information and Identification of Data Gaps 2/1/2007 Site Specific Technical Document - other
Lower Duwamish Waterway, Source Control Action Plan for the Slip 4 Early Action Area, Publication No. 06-09-046 7/1/2006 Site Specific Technical Document - other
Lower Duwamish Waterway, Source Control Action Plan for the Terminal 117 Early Action Area, Publication 05-09-093 7/1/2005 Site Specific Technical Document - other
Lower Duwamish Waterway Source Control Action Plan for the Duwamish/Diagonal Way Early Action Cleanup, Publication No. 04-09-003 12/1/2004 Site Specific Technical Document - other
T117 Source Control Area Property Reviews 6/18/2004 Site Specific Technical Document - other
Duwamish Ground Water Studies, Waste Disposal Practices and Dredge and Fill History 3/1/1985 Site Specific Technical Document - other
An Investigation of Pollution in the Green-Duwamish River; Technical Bulletin No. 20 8/1/1955 Site Specific Technical Document - other
Sources of Pollution in the Duwamish-Green River Drainage Area 12/6/1945 Site Specific Technical Document - other
There may be more documents related to this site. To obtain documents not available electronically, you will need to make a public records request.

Places to see print documents

  • Northwest Regional Office
    15700 Dayton Ave N
    Shoreline, 98133
    Please schedule an appointment to view print documents at this location.

Contaminants 14

Contaminant Type
Soil
Groundwater
Surface Water
Air
Sediment
Bedrock
Other Contaminant - Base/Neutral/Acid Organics C
Halogenated Organics - Halogenated Organics C
Metals - Metals Priority Pollutants C
Halogenated Organics - Polychlorinated biPhenyls (PCB) C
Non-Halogenated Organics - Petroleum Products-Unspecified C
Non-Halogenated Organics - Phenolic Compounds C
Halogenated Organics - Dioxins/Furans C
Non-Halogenated Organics - Polycyclic Aromatic Hydrocarbons C
Other Contaminant - Conventional Contaminants, Organic S
Other Contaminant - Conventional Contaminants, Inorganic C
Metals - Arsenic C
Non-Halogenated Organics - Organotins C
Other Contaminant - Bioassay Benthic Failures C
Pesticides - Pesticides-Unspecified C
S
Suspected
C
Confirmed Above Cleanup Levels
B
Below Cleanup Levels
RA
Remediated-Above
RB
Remediated-Below
R
Remediated
This contaminant list was based on our best information at the time it was entered. It may not reflect current conditions at the site.