COMMISSION 
AGENDA MEMORANDUM                        Item No.          8a 
ACTION ITEM                            Date of Meeting      March 27, 2018 
DATE:     February 15, 2018 
TO:        Stephen Metruck, Executive Director 
FROM:    Kathy Bahnick, Senior Manager, Remediation Programs 
Roy Kuroiwa, Senior Environmental Program Manager 
SUBJECT:  Terminal 108 Preliminary Assessment and Site Investigation 
Amount of this request:                       $0 
Total estimated project cost:            $300,000 
ACTION REQUESTED 
Request Commission authorization for the Executive Director to sign an EPA Administrative
Settlement Agreement and Order on Consent requiring the Port of Seattle to perform a
Preliminary Assessment and Site Investigation at Terminal 108. Funding for this work was
included in the 2018   2022 annual Environmental Remediation Liability (ERL) Program
authorization. 
EXECUTIVE SUMMARY 
Terminal 108 (T-108) has been identified as a potential upland source control site for the Lower
Duwamish Waterway Superfund Site due to its adjacency to the river and the past uses at the
site. Source control is the process of identifying sources of contamination, then stopping or
reducing them before they reach the Lower Duwamish Waterway. 
Historically, the T-108 site was a municipal sewage treatment plant between 1938 and 1969,
first owned and operated by the City then later by Metro/King County. In 1975, the U.S. Army
Corps of Engineers negotiated an agreement with Chiyoda, the property owner at that time, to
dispose of dredge spoils containing PCBs at T-108. The dredge spoils came from Slip 1, about
2,400 feet upstream of T-108, where a General Service Administration contractor had dropped
a transformer containing 265 gallons of concentrated PCB fluid. 
The Port purchased the property in 1984. As the current owner, the Port has performed site
investigations in coordination with the Department of Ecology (Ecology) to study and address
possible source control issues. More recently, Ecology asked the U.S. Environmental Protection
Agency (EPA) to take the lead on this site due to the federal government's role in contributing
to suspected contamination at the site. Subsequently, EPA requested that the Port perform a
Preliminary Assessment and Site Investigation (PA-SI). The  Port negotiated with EPA to reach

Template revised September 22, 2016.

COMMISSION AGENDA  Action Item No. 8a                                  Page 2 of 5 
Meeting Date: March 27, 2018 
agreement on a final Administrative Settlement Agreement and Order on Consent Order, (EPA
Order) (attached).  A PA-SI is similar to a property Phase I Environmental Site Assessment
(document search to develop site history of ownership and operations, including potential
environmental impacts and releases) and a data gaps investigation.  Today, most of the
terminal is used by our tenant as an off-dock facility for storage and maintenance of empty
cargo containers. 
Funding for this work was included in the 2016-2020 Environmental Remediation Liability (ERL)
Program.  Accordingly, additional funding is not requested at this time. 
JUSTIFICATION 
The EPA Order is a binding agreement to perform work by the Port, therefore the signing of the
EPA Order requires Commission authorization. The project will formally initiate the process of
determining upland site cleanup or control efforts at T-108 necessary to meet EPA and
Ecology'ssource control requirements as related to the larger Lower Duwamish Waterway
Superfund Site. The project will also help EPA and Ecology identify other possible responsible
parties, in addition to the Port, for source control, site assessment, and cleanup if required. 
DETAILS 
The Statement of Work detailed in the Order requires that the Port perform a PA-SI. These
work tasks are routine site assessment efforts and are used to determine:  a) what is the
source, nature and extent of the release; b) is there an imminent threat to human health or the
environment; c) who are possible responsible parties for the release; and, finally, d) if a removal
action is necessary. 
Scope of Work 
As presented in the Statement of Work attached to the Order, the Port will perform the
following tasks: 
1.  Preliminary Assessment Report 
a.  Research site history, including prior environmental investigation, ownership and
operations. 
b.  Evaluate all existing environmental data to determine current site conditions. 
c.   Identification of data gaps, if any. 
2.  Site Investigation Report (if data gaps are identified) 
a.  Investigation Work Plan 
b.  Perform site investigation activities, which may include soil and groundwater
sampling. 


Template revised September 22, 2016; format updates October 19, 2016.

COMMISSION AGENDA  Action Item No. 8a                                  Page 3 of 5 
Meeting Date: March 27, 2018 
Schedule 
The schedule of the required work is based on the Statement of Work in the Settlement
Agreement. The total time to complete this work is approximately 6 months. 
Activity                                              Estimated Schedule 
Commission authorization of Order              Q1  2018 
Perform Preliminary Assessment                Q2  2018 
Perform Site Investigation                        Q4  2018 
Cost Breakdown                                 Estimated Total
Project 
Preliminary Assessment                                 $125,000 
Site Investigation                                             $150,000 
Project Management and Controls                        $25,000 
ALTERNATIVES AND IMPLICATIONS CONSIDERED 
Alternative 1  Do Not Authorize Signature of the Order 
Cost Implications: Not signing the Order may result in the issuance of an enforcement order by
EPA, or EPA may elect to perform this work itself. This would result in the EPA recovering the
cost of the work from the Port, increasing the Port's estimated costs by 1.5 to 3 times, roughly
$500,000 to $1 million (from $300,000). 
Pros: 
(1) May delay the Port's spending by a year or more while EPA prepares the enforcement 
order. 
(2)   May delay the work and costs while EPA has to contract and perform the work itself,
then compels the Port to reimburse EPA for the costs. 
Cons: 
(1) Increased legal and staff time and efforts to respond to an enforcement order and
provide ancillary support to the EPA to carry out the enforcement order (gain access to
the site, etc.) 
(2) The ultimate costs of the work will be much higher if EPA elects to perform the work
itself. 
(3) Not performing this work  could tarnish the Port's  reputation with EPA and the
community as having a commitment to public health and being a steward of community
resources and the environment. 
This is not the recommended alternative. 


Template revised September 22, 2016; format updates October 19, 2016.

COMMISSION AGENDA  Action Item No. 8a                                  Page 4 of 5 
Meeting Date: March 27, 2018 
Alternative 2  Authorize the Signing of the Order and begin the required Statement of Work 
Cost Implications: Likely $300,000 but may increase to $500,000, depending on the findings
during the work. 
Pros: 
(1)   Complies with the Order and furthers the Port's collaborative working relationship
with EPA. 
(2)   Takes the next step leading to Terminal 108's cleanup and long-term protection of
human health and the environment. 
(3)   Will likely lead to the identification of other responsible parties for past releases. 
(4)   Demonstrates the Port's value of being responsible stewards of community resources
and the environment. 
Cons: 
(1)   Costs of approximately $300,000 by the Port to complete the Order's Statement of
Work. 
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.
Certain costs may also be eligible for insurance reimbursement.  Cost recovery from former
owners or operators at the terminal has not yet been pursued, but may be pursued in the
future. 
Cost Estimate/Authorization Summary               Capital        Expense           Total 
COST ESTIMATE 
Original estimate                                          $0        $300,000        $300,000 
AUTHORIZATION 
Previous authorizations (by ERL)                            0        $300,000        $300,000 
Current request for authorization                          0                0                0 
Total authorizations, including this request                  0                0                0 
Remaining amount to be authorized                    $0             $0             $0 
ATTACHMENTS TO THIS REQUEST 
(1)   Administrative Settlement Agreement and Order on Consent for Removal Action
Preliminary Assessment and Site Investigation (T-108, Lower Duwamish Waterway
Superfund Site, Seattle, WA) 


Template revised September 22, 2016; format updates October 19, 2016.

COMMISSION AGENDA  Action Item No. 8a                                  Page 5 of 5 
Meeting Date: March 27, 2018 
PREVIOUS COMMISSION ACTIONS OR BRIEFINGS 
November 6, 2017  The Commission authorized spending environmental remediation
liabilities  funds  for  2018  in  the  amount  of  $19,800,000  and  a  five-year  plan  of
$88,800,000 for Environmental Remediation Liability Program for 2018-2022 of which
an amount estimated not to exceed $30,000,000 will be obligated during 2018 to be
spent in future years. 
May 9, 2016  The Commission authorized execution of an Inter-Agency Agreement (IAA)
with the Washington State Department of Ecology for a 100% grant-funded project
(bank stabilization) at T-108. 














Template revised September 22, 2016; format updates October 19, 2016.