COMMISSION 
AGENDA MEMORANDUM                        Item No.          8r 
ACTION ITEM                            Date of Meeting       March 8, 2022 

DATE :     January 5, 2022 
TO:        Stephen P. Metruck, Executive Director 
FROM:    Kathy Bahnick, Senior Manager, Remediation Programs 
Joanna Florer, Senior Environmental Program Manager 
SUBJECT:  Eighth Amendment to the Lower Duwamish Waterway Group Memorandum of
Agreement 

Amount of this request:                       $0 
Total estimated project cost:              $40,000 
ACTION REQUESTED 
Request Commission Authorization for the Executive Director to execute an Eighth Amendment
to the Lower Duwamish Waterway Group Memorandum of Agreement. 
EXECUTIVE SUMMARY 
The eighth Amendment to the Lower Duwamish Waterway Group (LDWG) Memorandum of
Agreement (MOA) provides an agreement to pay costs associated for the additional evaluation
of carcinogenic polycyclic aromatic hydrocarbons (cPAHs) for the Lower Duwamish Waterway
(LDW) upper and middle reach design, per the U.S. Environmental Protection Agency's (EPA)
2014 Record of Decision (ROD or Cleanup Plan) removal levels instead of the EPA's revised 2021
removal levels. This work is not required by EPA but is being conducted by LDWG in response to
community concerns. 
The estimated cost for the additional cPAH evaluation in the upper and middle reach is
approximately $160,000 split equally between the four parties. The Port's share is  25%
($40,000). No funding is requested at this time. Funds to perform the Port's share of this work
will  continue  to  be  included  in  the  Environmental  Remediation  Liability  (ERL)  annual
authorization. 
JUSTIFICATION 
This work supports the Century Agenda goal of being the greenest, most energy efficient Port in
North America by further advancing the cleanup of the LDW. Going above EPA's 2021 cPAH
cleanup requirements  reflects our commitment to environmental stewardship, from the
perspectives of both the surrounding communities and the customers that we serve. The local
communities (South Park and Georgetown) are actively watching and commenting on this

Template revised January 10, 2019.

COMMISSION AGENDA  Action Item No. 8r                                   Page 2 of 4 
Meeting Date: March 8, 2022 
cleanup project and are eager to see the LDW cleanup continue to move forward as originally
identified in EPAs 2014 Cleanup Plan. 
Diversity in Contracting 
Not Applicable 
DETAILS 
LDWG has been partnering since 2000 to study and clean up contaminated sediments in the
LDW Superfund Site. In 2001, LDWG entered an Administrative Order on Consent (AOC) with
EPA and the Washington State Department of Ecology (Ecology) to perform a Remedial
Investigation/Feasibility Study (RI/FS) under Superfund for cleanup of contaminated sediments
in the LDW. EPA selected a remedy for the site in their 2014 Record of Decision. In 2018, a
fourth amendment to the AOC (AOC 4) was authorized for LDWG to conduct remedial design
for the upper reach of the LDW to advance the implementation of EPA's Cleanup Plan. In 2021,
a fifth amendment to the AOC (AOC 5) was authorized to direct LDWG to conduct remedial
design for the middle reach of the LDW to further advance the implementation of EPA's
Cleanup Plan.  In 2021, EPA issued an Explanation of Significant Differences (ESD) for cPAHs,
which revised the cPAH cleanup levels in the 2014 Record of Decision upwards based on newer
scientific data that EPA is applying nationwide. 
LDWG was conducting the upper reach design work per the 2014 ROD and 2021 ESD for cPAHs,
but due to community concerns about the revised 2021 cPAH removal levels, LDWG has agreed
to evaluate cPAHs in the upper reach and the middle reach per the 2014 ROD. This change 
requires additional analysis of cPAH samples, data management, and evaluation that are not
required by EPA or subject to the terms of the existing MOA or previous amendments. 
Therefore, an eighth MOA amendment is required for the Port to continue with the 25% cost
sharing agreement with the other members of LDWG for this additional cPAH work in the upper
and middle reach of the LDW. 
Schedule 
Activity                                              Estimated Schedule 
Commission authorization of MOA                  Q1 - 2022 
Cost Breakdown                               Estimated Total Project 
Additional cPAH evaluation                                        $40,000 



Template revised June 27, 2019 (Diversity in Contracting).

COMMISSION AGENDA  Action Item No. 8r                                   Page 3 of 4 
Meeting Date: March 8, 2022 

ALTERNATIVES AND IMPLICATIONS CONSIDERED 
Alternative 1  Do not authorize signing the MOA 
Cost Implications: $0 at this time but comes with certain risks. 
Pros: 
(1)   No  additional  ERL  funds  would  be  spent  if  the  Port  does  not  sign  the  MOA
amendment. 
Cons: 
(1) Not participating in the cost sharing for this work could tarnish the Port's reputation
with the community as having a commitment to public health and being a steward of
community resources and the environment. 
(2) Could tarnish the current working relationship among the LDWG partners 
(3) Would impact the Port's ability to influence the extent and design of the work
performed. 
This is not the recommended alternative. 
Alternative 2  Authorize signing the MOA 
Cost Implications: Approximately $40,000 (25% of $160,000). 
Pros: 
(1)   Continues current working relationship among the LDWG partners and continues cost
sharing for the additional work. 
(2)   Demonstrates the Port's commitment to public health, social equity and being a
responsible steward of community resources and the environment. 
Cons: 
(1)   Costs of approximately $40,000 by the Port to complete the additional work. 
(2)   Port  costs  may  not  be  eligible  for  insurance  reimbursement  and/or  state  grant
recovery. 
This is the recommended alternative. 
FINANCIAL IMPLICATIONS 
There is no funding request as part of this authorization.  Funding for the associated scope of
work and costs is included in the annual Environmental Remedial Liability (ERL) authorization.
Under the MOA amendment covering this work, the costs would be shared with our LDWG
partners.


Template revised June 27, 2019 (Diversity in Contracting).

COMMISSION AGENDA  Action Item No. 8r                                   Page 4 of 4 
Meeting Date: March 8, 2022 
Cost Estimate/Authorization Summary              Capital        Expense           Total 
COST ESTIMATE 
Original estimate                                          $0         $40,000         $40,000 
AUTHORIZATION 
Previous authorizations (by ERL)                            0     $16,000,000     $16,000,000 
Footnote: The $16 million is for the 2022 budget. 
ATTACHMENTS TO THIS REQUEST 
(1) Amendment to Memorandum of Agreement 
PREVIOUS COMMISSION ACTIONS OR BRIEFINGS 
November 9, 2021  2022  2026 Environmental Remediation Liability Program. The
Commission authorized spending environmental remediation liabilities funds for 2022 in
the amount of $16,000,000 and a five-year plan of $114,000,000 for Environmental
Remediation Liability Program for 2022-2026 of which an amount estimated not to
exceed $30,000,000 will be obligated during 2022to be spent in future years. 
June 8, 2021 - Fifth Amendment of the Lower Duwamish Waterway Administrative
Order on Consent, Seventh Amendment of the Lower Duwamish Waterway Group
Memorandum of Agreement for design of the Middle Reach 
June 12, 2018 - Fourth Amendment of the Lower Duwamish Waterway Administrative
Order on Consent, Sixth Amendment of the Lower Duwamish Waterway Group
Memorandum of Agreement for Design of the Upper Reach 
April 12, 2016 - Third Amendment of the Lower Duwamish Waterway Administrative
Order on Consent, Fourth  Amendment of the Lower Duwamish Waterway Group
Memorandum of Agreement 
July 1, 2014  Second Amendment of the Lower Duwamish Waterway Administrative
Order on Consent, Second Amendment of the Lower Duwamish Waterway Group
Memorandum of Agreement 
February 26, 2013   First Amendment to the Lower Duwamish Waterway Group
Administrative Order on Consent 
January  22,  2013   First  Amendment  to the  Lower Duwamish  Waterway  Group
Memorandum of Agreement 
October 12, 2010  Briefing on the Lower Duwamish Waterway Feasibility Study 
May 5, 2009  Briefing on the Lower Duwamish Waterway Feasibility Study 
November 4, 2008  Briefing on the Lower Duwamish Waterway Remedial Investigation
and Feasibility Study 
November 6, 2007  Briefing on Lower Duwamish Sediment Superfund site 



Template revised June 27, 2019 (Diversity in Contracting).