Lower Duwamish Waterway Source Control Status Report 2018
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Lower Duwamish Waterway Source Control Status Report 2018 June 2020 Publication No. 20-09-172 Printed on recycled paper This report is available on the Department of Ecology home page on the World Wide Web at: https://ecology.wa.gov/Spills-Cleanup/Contamination-cleanup/Cleanup-sites/Toxic-cleanup- sites/Lower-Duwamish-Waterway/Source-control For a printed copy of this report, contact: Department of Ecology Toxics Cleanup Program Phone: 360-407-7170 Refer to Publication No. 20-09-172 If you need this publication in an alternate format, please call the Toxics Cleanup Program at 360-407-7170. Persons with hearing loss can call 711 for Washington Relay Service. Persons with a speech disability can call 877-833-6341. Lower Duwamish Waterway Source Control Status Report 2018 Produced by Toxics Cleanup Program Northwest Regional Office Washington State Department of Ecology Bellevue, Washington and Leidos 18939 129th Avenue NE, Suite 112 Bothell, Washington 98011 With Assistance from: City of Seattle King County Port of Seattle U.S. Environmental Protection Agency June 2020 Waterbody No. WA-09-1010 Publication No. 20-09-172 This page intentionally left blank. LDW Source Control Status Report 2018 Table of Contents Page Executive Summary ..................................................................................................... vi 1.0 Introduction ...................................................................................................... 1-1 1.1 Lower Duwamish Waterway Site ................................................................................ 1-1 1.2 Memoranda of Understanding and Agreement ............................................................ 1-5 1.3 Lower Duwamish Waterway Source Control Strategy ................................................ 1-5 1.4 Source Control Process ................................................................................................ 1-6 2.0 Basin-wide Source Control Activities ............................................................ 2-1 2.1 Action Item Status........................................................................................................ 2-1 2.2 Business Inspections and Spill Investigations ............................................................. 2-3 2.3 Source Tracing and Sampling ...................................................................................... 2-8 2.4 Other Source Control Activities ................................................................................. 2-15 2.5 Site Assessment and Cleanup .................................................................................... 2-17 2.6 Additional Studies Relevant to Source Control ......................................................... 2-21 2.7 Source Control Area-Specific Activities ................................................................... 2-23 3.0 Upper Reach Source Control Areas ............................................................... 3-1 3.1 RM 4.9 East (EAA-7: Norfolk CSO/SD) .................................................................... 3-1 3.2 RM 4.3-4.9 East (Boeing Developmental Center) ....................................................... 3-7 3.3 RM 3.9-4.3 East (Slip 6) .............................................................................................. 3-9 3.4 RM 3.7-3.9 East (EAA-6: Boeing Isaacson / Central KCIA) .................................... 3-12 3.5 RM 2.8-3.7 East (EAA-4: Boeing Plant 2 to Jorgensen Forge)................................. 3-13 3.6 RM 4.2-5.8 West (Restoration Areas) ....................................................................... 3-15 3.7 RM 3.8-4.2 West (Sea King Industrial Park) ............................................................. 3-16 3.8 RM 3.4-3.8 West (EAA-5: Terminal 117) ................................................................. 3-18 4.0 Middle Reach Source Control Areas .............................................................. 4-1 4.1 RM 2.8 East (EAA-3: Slip 4) ....................................................................................... 4-1 4.2 RM 2.3-2.8 East (Seattle Boiler Works to Slip 4) ....................................................... 4-6 4.3 RM 2.0-2.3 East (Slip 3 to Seattle Boiler Works) ..................................................... 4-11 4.4 RM 1.7-2.0 East (Slip 2 to Slip 3) ............................................................................. 4-12 4.5 RM 2.2-3.4 West (Riverside Drive) ........................................................................... 4-17 4.6 RM 2.1-2.2 West (EAA-2: Trotsky Inlet) .................................................................. 4-19 4.7 RM 2.1 West (1st Avenue S Storm Drain) ................................................................. 4-20 4.8 RM 1.6-2.1 West (Terminal 115) .............................................................................. 4-22 5.0 Lower Reach Source Control Areas ............................................................ 5-24 5.1 RM 1.2-1.7 East (Saint Gobain to Glacier Northwest) ................................................ 5-1 5.2 RM 1.0-1.2 East (King County Lease Parcels) ............................................................ 5-2 5.3 RM 0.9-1.0 East (Slip 1) .............................................................................................. 5-7 5.4 RM 0.1-0.9 East (EAA-1: Duwamish/Diagonal Way) ................................................ 5-8 5.5 RM 0.0-0.1 East (Spokane Street to Ash Grove Cement) ......................................... 5-12 5.6 RM 1.3-1.6 West (Glacier Bay) ................................................................................. 5-13 5.7 RM 1.0-1.3 West (Kellogg Island to Lafarge Cement) ............................................. 5-14 June 2020 Page i LDW Source Control Status Report 2018 5.8 RM 0.0-1.0 West (Spokane Street to Kellogg Island) ............................................... 5-15 6.0 References ....................................................................................................... 6-1 Appendices Appendix A Source Control Area Maps Appendix B Action Item Status Appendix C SPU Source Control Inspections (2018) Appendix D King County Source Control Inspections (2018) Appendix E Ecology Source Control Inspections (2018) Appendix F SPU Source Tracing Data (2018) Appendix G King County Source Tracing Data (2018) Figures Figure ES-1. Status of Source Control Action Items Figure 1-1. Lower Duwamish Waterway Source Area Figure 1-2. Lower Duwamish Waterway Source Control Areas Figure 1-3. Lower Duwamish Waterway Reach Boundaries Figure 2-1. Seattle Storm Drain Basins in the Lower Duwamish Waterway Figure 2-2. Lower Duwamish Waterway Combined Sewer Overflow Basins Figure 2-3. Source Tracing Sample Locations in the LDW Basin (2018) Tables Table ES-1. High Priority Source Control Action Items to be Completed Table 1-1. List of Source Control Areas, by Reach Table 2-1. Number of Action Items by Source Control Area Table 2-2. Summary of 2018 SPU Inspections by Source Control Area Table 2-3. Summary of 2018 Ecology Inspections by Source Control Area Table 2-4. Storm Drain Screening Levels Table 2-5. City of Seattle Outfalls in the LDW Basin Table 2-6. Cleanup Sites Under EPA Oversight Table 2-7. Cleanup Sites Under Ecology Oversight Table 2-8. Ecology Cleanup Site Status Table 3-1. RM 4.9 East: Screening Level Exceedances in SPU Source Tracing Samples Table 3-2. RM 3.9-4.3 East: Screening Level Exceedances in King County Source Tracing Samples Table 3-3. RM 3.8-4.2 West: Screening Level Exceedances in King County Source Tracing Samples June 2020 Page ii LDW Source Control Status Report 2018 Table 3-4. RM 3.4-3.8 West: Screening Level Exceedances in SPU Source Tracing Samples Table 4-1. RM 2.8 East: PCB Concentrations in Slip 4 Sediment Traps Table 4-2. RM 2.8 East: Screening Level Exceedances in SPU and King County Source Tracing Samples Table 4-3 RM 2.3-2.8 East: Screening Level Exceedances in SPU Source Tracing Samples Table 4-4. RM 2.0-2.3 East: Screening Level Exceedances in SPU Source Tracing Samples Table 4-5. RM 1.7-2.0 East: Screening Level Exceedances in SPU and King County Source Tracing Samples Table 4-6. RM 2.2-3.4 West: Screening Level Exceedances in SPU Source Tracing Samples Table 4-7. RM 2.1 West: Screening Level Exceedances in SPU Source Tracing Samples Table 4-8. RM 1.6-2.1 West: Screening Level Exceedances in SPU Source Tracing Samples Table 5-1. RM 0.1-0.9 East: Screening Level Exceedances in SPU Source Tracing Samples Table 5-2. RM 0.0-1.0 West: Screening Level Exceedances in SPU Source Tracing Samples June 2020 Page iii LDW Source Control Status Report 2018 Acronyms and Abbreviations 2LAET Second Lowest Apparent Effects Threshold BDC Boeing Developmental Center BEHP bis(2-ethylhexyl)phthalate BMP best management practice BTEX benzene, toluene, ethylbenzene, and xylenes CAP Cleanup Action Plan CERCLA Comprehensive Environmental Response, Compensation, and Liability Act COC chemical of concern cPAH carcinogenic polycyclic aromatic hydrocarbon cDCE cis-1,2-dichloroethene CSL cleanup screening level CSO combined sewer overflow DCE dichloroethene DW dry weight EAA early action area Ecology Washington State Department of Ecology EMF Electronics Manufacturing Facility EOF emergency overflow EPA U.S. Environmental Protection Agency FS feasibility study GIS geographic information systems GSC Grand Street Commons GTSP Georgetown Steam Plant HPAH high molecular weight polycyclic aromatic hydrocarbon HWTR Hazardous