4c

COMMISSION 
AGENDA MEMORANDUM                Item No.       4c 
ACTION ITEM                   Date of Meeting    November 8, 2016 
DATE:    October 31, 2016 
TO:     Ted Fick, Chief Executive Officer 
FROM:   Kathy Bahnick, Mgr Environmental Programs 
Don Robbins, Sr Environmental Program Mgr 
SUBJECT:  2017-2021 Environmental Remediation Liability (ERL) Program 
Amount of this request:              $17,700,000 
Total estimated five-year plan:         $85,800,000 
ACTION REQUESTED 
Request Commission authorization for the Chief Executive Officer to (1) spend environmental
remediation liabilities funds for 2017 in the amount of $17,700,000; (2) approving a five-year
spending plan of $85,800,000 for the Environmental Remediation Liability Program for 2017-
2021 of which an amount estimated not to exceed $33,600,000 will be obligated during 2017 to
be spent in future years. 
EXECUTIVE SUMMARY 
As a major industrial and commercial landowner, the Port has significant environmental
cleanup liabilities due to historic contamination of its properties. The $17,700,000 requested
spending authorization for 2017 will allow continuation of ongoing environmental investigation,
testing, analysis, design, cleanup, and monitoring for active sites and will initiate similar
activities for new sites, as noted in this memorandum. The authorization and five-year plan will
allow the Port to enter into contracts for work spanning multiple years. Prior to actual
spending of these obligated funds, Commission budget approval will be needed, likely through
future annual ERL authorizations. The approval of the five-year plan gives greater visibility to
our projected upcoming environmental remediation liability spending. 
Environmental remediation projects define and minimize, to acceptable levels, threats to the
environment caused by prior Port operations, prior tenant operations, and by the historical
effects of industrial activity on properties acquired by the Port. Generally, the results of these
efforts, as well as the attendant compliance with regulatory mandates, management of Port
liabilities, and support of the local community, align with the goals and objectives of the
Century Agenda, Long Range Plans, and Maritime, Aviation, Economic Development Division
and Storm Water Utility Business Plans. 


Template revised May 30, 2013.

COMMISSION AGENDA  Action Item No. 4c                       Page 2 of 14 
Meeting Date: November 8, 2016 
JUSTIFICATION 
Consistent with past practices, the duration of the authorization continues to be an annual
spending authorization. However, since 2011, the authorization requests have also provided a
rolling five-year spending plan to reflect the level of resources expected to be required over the
next five years. Executing contract obligations for a longer duration minimizes the need to
rework all contract amendments and service directives that are aligned with the end-of-year
authorization. It also provides greater visibility of the environmental liability costs. 
The environmental investigation and remediation actions described below are generally
required under federal and/or state law, exceptions are noted. Remedial actions continue to
focus on cost-effective study, analysis, and implementation of cleanup actions; coordination
with capital planning, design, and construction; and negotiation with agencies, tenants, other
Potentially Responsible Parties (PRPs) and insurance companies. 
Project Objectives: 
(1) Perform the remediation work at the various sites in accordance with the various state
or federal agreed orders. 
(2) Manage and perform the work, with project controls and contract systems in place. 
(3) Identify and consider community values and concerns as part of the various public
participation plans. 
(4) Perform remediation investigations, designs and implementations that will be carried
out in a manner that considers current and potential uses for the sites. 
(5) Maximize cost recovery 
(6) Perform initial investigations, scoping work to identify future actions 
DETAILS 
Scope of Work 
Maritime, Economic Development and NWSA Homeport Sites/Projects 
Lower Duwamish Waterway Superfund Site  The Lower Duwamish Waterway (LDW) is a
Federal Superfund Site. The Lower Duwamish Waterway Group (LDWG), consisting of the Port,
the City of Seattle, King County and Boeing, has completed a Remedial Investigation and
Feasibility Study (RI/FS) of the Waterway under Order with the Environmental Protection
Agency (EPA) and the Department of Ecology (Ecology). The parties signed a new Order
amendment in 2016 to perform pre design activities including a baseline-monitoring program
and a waterway user study. For the current work being performed on this site, the Port is
currently the contracting agent for the Fisher Study for the LDWG and a paying party for the
Activated Carbon Pilot Study and the pre design work.
(1) EPA issued the Record of Decision in November 2014, after seeking concurrence from
Ecology. 
(2) In 2014, as part of the ongoing studies, LDWG initiated a Fisher Study to determine who
is using the river for fishing and to aid EPA in development of appropriate Institutional
controls during and after cleanup. In addition, LDWG began a carbon amendment pilot
study at the end of 2014, which is anticipated to be completed in 2020.

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COMMISSION AGENDA  Action Item No. 4c                       Page 3 of 14 
Meeting Date: November 8, 2016 
(3) In 2016, LDWG performed a joint procurement process to select and hire the consultant
for the pre design work. This work is expected to be completed in 3-4 years. 
Terminal 117 Sediments, Bank and Uplands  As part of the Lower Duwamish Waterway
Superfund effort, EPA identified the Port's Terminal 117 (T-117) in South Park as an Early Action
Area (EAA).
(1) The EPA issued their 2010 Action Memorandum that included the EPA-selected cleanup
plan. The EPA Order to design and implement the plan was signed by the Port and City
on June 9, 2011. 
(2) The Port between June 2013 and December 2014 completed the T-117 upland soil and
sediment cleanup. 
(3) The Port is preparing to begin long-term monitoring and maintenance of the site, to
verify the continued performance of the cleanup. 
South Park Marina  This site is adjacent to and north of Terminal 117. Ecology has sent the
Port a letter informing the Port that they believe the Port maybe a Potential Liable Party (PLP)
for the cleanup of this site. Negotiations are ongoing about the Port's role in the future
investigation and cleanup of the Marina. 
Terminal 108  As part of the effort to control sources of contamination to the LDW, Ecology
identified potential source sites that could require early cleanup action. One such Port owned
site is located in the sediments adjacent to Terminal 108. Ecology requested, and the Port
voluntarily agreed, to perform additional investigation of the groundwater. The groundwater
study determined that the groundwater is not a source of contaminants to the river. However,
additional upland contamination was discovered on the site  that may generate future
investigation requirements. 
As part of an Interagency Agreement (IAA) with Ecology, the Port in 2015 completed a bank
stabilization project along 350 feet of shoreline and cleanout of stormwater conveyance lines. 
The Port performed maintenance on this bank in 2016 using additional funds under a new IAA
with Ecology. 
Terminal 115 South  The Port, along with Boeing, has been named by Ecology as a Potentially
Liable Party (PLP) at Terminal 115S. Boeing and the Port have both accepted the PLP status. 
Boeing and the Port are negotiating the roles and cost sharing aspects of this future
investigation. 
Terminal 115 North  In late January 2009, the Port received from Ecology a Notice of Potential
Model Toxics Control Act (MTCA) Liability. Ecology has focused on this site because it is located
adjacent to Glacier Bay, one of the high priority sediment sites (Glacier Bay) within the Lower
Duwamish Superfund site. Glacier Bay is located north of Terminal 115. On November 2, 2010,
the Commission authorized entering into a MTCA Order for this site, under which the Port will
further characterize the site and develop a draft cleanup action plan. Since then, the fieldwork 
for the remedial investigation has been completed and the Remedial Investigation report is
being written under the Ecology- approved schedule. 

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COMMISSION AGENDA  Action Item No. 4c                       Page 4 of 14 
Meeting Date: November 8, 2016 
Terminal 5 Ecology State Cleanup Sites  In the past, as part of the Terminal 5 Southwest
Harbor redevelopment, the Port completed remediation at four sites under Consent Decrees
with Ecology. Current obligations include on-going cap inspection and maintenance of the cap
areas. As part of the T-5 redevelopment, the Port purchased the old West Seattle Landfill and
installed an environmental cap and a methane collection system. These systems require longterm
operation and maintenance, inspection, and reporting, which are continuing. 
Terminal 5 Pacific Sound Resources (PSR) EPA Superfund Site  This site was cleaned up under
an Order with EPA as part of the Terminal 5 Southwest Harbor redevelopment project. Ongoing
obligations include continuing to perform required cap inspection and cap maintenance,
product recovery activities and monitoring EPA activities related to the groundwater and the off
shore sediments.
Lockheed West - As part of the South West Harbor Redevelopment Project, the Port purchased
aquatic and upland property on the north end of the current Terminal 5 from Lockheed Martin.
The upland portion of the property is part of the Terminal 5 Ecology State Cleanup Sites
described earlier and the adjacent submerged portion is a Superfund cleanup site known as
Lockheed West Site. Under the purchase and sale agreement, Lockheed maintained their
obligation to investigate and cleanup the sediment within the Lockheed West Site which
includes both Port and Department of Natural Resources owned submerged land. The Lockheed
West Site was placed on the National Priorities List (NPL) on March 7, 2007. On August 28,
2013, EPA issued the ROD for the Site based on the area identified in the RI/FS that warranted
remedial action. The cleanup under this ROD represents the final remedial action for the Site.
Lockheed Martin is the sole PRP responsible to perform the work described in the ROD and
they are currently in the remedial design phase.  Cleanup fieldwork is schedule to start in
October 2018.  The Port is currently coordinating cleanup activities, reviewing sediment
cleanup documents by Lockheed, and providing comments to EPA. 
Harbor Island Superfund Site Soil and Groundwater Operable Unit  Terminal 18 is located
within this Superfund site. Cleanup of this site was performed under a Consent Decree with
EPA. The group consultant is performing long-term groundwater monitoring under a PRP
agreement. Long-term cap maintenance and inspections are ongoing as required under the
Record of Decision.
Harbor Island Superfund Site East Waterway Sediments Operable Unit  In 2006, the Port
signed an Order with EPA for a final Supplemental Remedial Investigation and Feasibility Study
(SRI/FS), and a Memorandum of Agreement with the City of Seattle and King County to share
costs and cooperate in the SRI/FS process.
(1) The Port is acting as the contracting agent for this work.
(2) A settlement agreement with Seattle Iron & Metals Corp. was negotiated for their
contribution to the SRI/FS costs. We are currently conducting the SRI/FS tasks identified
in the EPA Order and subsequent work plans. 
(3) The final RI was approved in January 2014. 
(4) A draft Feasibility Study was submitted in early 2014 and comments were received from
EPA in January 2015. The draft final Feasibility Study will be submitted in October 2016. 

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COMMISSION AGENDA  Action Item No. 4c                       Page 5 of 14 
Meeting Date: November 8, 2016 
Terminal 30 Oil Cleanup  Terminal 30 is a former Chevron bulk storage site. Since the 1990s,
the Port has removed significant amounts of free product and conducted an extensive
groundwater-monitoring program. The required public comment period for the draft Consent
Decree (CD) and Cleanup Action Plan (CAP) was completed and the Port signed a final CD in
early 2016. Ecology is planning to reissue the SEPA DNS for public comment, as the DNS was not
included in the original public notice, after which Ecology is expected to sign the CD. Once
Ecology signs the CD, the Port will proceed with design and implementation of the selected final
remedy followed by long-term monitoring. 
Terminal 10 Lockheed  Lockheed previously performed the upland and sediment cleanup
required at the site. The Port's continuing obligation is to maintain the upland cap and the
habitat restoration area, manage any contaminated soil and groundwater encountered or
removed during redevelopment or maintenance activities, and protects  Lockheed's
groundwater monitoring wells. Under the Terminal 10 Uplands capital project, stormwater
drainage and upland cap improvements were completed in early 2012. Long term stormwater
solids sampling was initiated after the capital project as a condition of EPA approval.
Terminals 103/104/105/107  These sites have been identified by Ecology as having source
control data gaps related to the Lower Duwamish Waterway Superfund Site.
Terminal 106 (West and Warehouse parcels)  These sites have been identified by Ecology as
having source control data gaps related to the Lower Duwamish Waterway Superfund Site.
Natural Resource Damages (NRD) Habitat Restoration  Superfund liability for LDW and Harbor
Island sediments also includes injury to natural resources from contamination.
(1) The Port is negotiating with the Elliott Bay Trustee Council (Trustees) for a settlement of
these liabilities that will likely include habitat restoration as a component.
(2) June 7, 2011, the Commission approved the design and permitting of an expanded
restoration project at Terminal 117. The design work for the restoration is nearing
completion and we have applied for permits.
(3) A credit letter was received from the Trustees that document the NRD value of the T117
habitat project as currently designed. 
After receipt of permits, the permit conditions are identified, and the settlement negotiations
have progressed, staff will be coming back to Commission to request authorization to bid,
award, and construct the habitat project. 
Terminal 91 Cleanup  Investigation and cleanup of this site is being administered by Ecology 
under a State Dangerous Waste Permit and a MTCA Order.
(1) The draft Feasibility Study (FS) went out for public comment December 2009 and
finalized with no changes.
(2) A draft Cleanup Action Plan (CAP), which identifies the cleanup approach selected by
Ecology, and State Environmental Policy Act (SEPA) checklist went out for public
comment in October 2010 and was finalized.
(3) A new MTCA Order for performance of the cleanup was issued in the spring of 2012.
The design has been approved by Ecology.

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COMMISSION AGENDA  Action Item No. 4c                       Page 6 of 14 
Meeting Date: November 8, 2016 
(4) On August 6, 2013, the Commission approved the CEO to advertise and execute a major
construction project and to self-perform using Port crews, to implement the cleanup
action required by the Order.
(5) The cleanup work at Terminal 91 was completed in mid-2015 and long term
groundwater monitoring and O&M has begun. Investigation and cleanup of discrete
units continues 
(6) In late 2015, an amendment to the Order was signed which allowed the Port to perform
sediment regrading of a small shoal along the east side of Pier 91 with oversight by
Ecology (performed in 2016) and required the Port to begin investigation into the site
sediments. An investigation will be performed in 2017 after the newly hired consultant
develops approved work plans. 
Fishermen's Terminal  The Port has removed contaminated soils in the uplands, capped the
uplands as a voluntary cleanup measure, and is conducting a continuing program of
investigative groundwater monitoring at and near the Fishing Vessel Owners tenant site. Some
dredging of contaminated sediments occurred as part of the Docks 5-10 renewal and
replacement and berth-dredging project. An assessment of site-wide contamination is planned. 
Aviation Sites/Projects 
Aircraft Fuel Farms and Fueling Systems  Five underground aircraft fueling systems were
constructed and operated by individual airlines beginning in the early 1960s. As of January
2007, each of these systems has been decommissioned. Appropriate environmental cleanup
has been achieved for three of the systems and is in progress for two others: 
(1) Remediation of an area impacted by operations of the former United Airlines and
Continental Airlines fuel farms is anticipated to continue into 2016 with confirmation
monitoring to follow. The Port is a member of the PLP group for this multiple-source
site. 
Lora Lake Apartments  On July 10, 2009, the Port and Ecology executed a MTCA Order that
required the Port to conduct a Remedial Investigation and Feasibility Study (RI/FS) for the
cleanup of the Lora Lake Apartment Property. 
(1) A Draft RI/FS was submitted to Ecology in January 2012, the RI/FS report presented the
findings of investigations and analysis of cleanup alternatives. 
(2) January 2013, these documents were subsequently revised to address Ecology's
comments and accepted for public comment.
(3) A Consent Decree to complete the cleanup was negotiated in 2013. 
(4) The initial public comment period on the RI/FS and Consent Decree ended on November
25, 2013 and was extended to January 15, 2014.
(5) After continued negotiations with Ecology, and subsequent revision of the Cleanup
Action Plan, a second public comment period was held in May and June of 2015. 
(6) The Consent Decree, with the Cleanup Action Plan, was finalized on September 9, 2015. 
Remedial design, including extensive field sampling and analysis, has taken place in 2015 and
2016. Commission authorization to advertise and award a major works contract to implement

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COMMISSION AGENDA  Action Item No. 4c                       Page 7 of 14 
Meeting Date: November 8, 2016 
the remediation was received on September 13, 2016. Remedial construction is scheduled to
begin in the spring of 2017, and continue through the fall of 2018.
Schedule 
Included in project scope of work write-up. 
ALTERNATIVES AND IMPLICATIONS CONSIDERED 
The following alternatives were considered for accomplishing the work described above: 
Alternative 1  Do not complete the work. 
Cost Implications: N/A 
Pros: 
(1) Staff could not identify positive aspects for this alternative. 
Cons: 
(1) Could result in the regulators, including Department of Ecology, EPA, or NOAA taking
enforcement action that could lead to the remedy being implemented by them and the
Port being liable for three times the cost incurred by the regulator 
(2) The Port would lose the opportunity to employ the flexibility contained in the
controlling regulations, to define and direct the work, and to manage costs. 
(3) Would not comply with Port's obligation to remediate the sites 
(4) Would delay work previously agreed to under existing regulatory orders or under
voluntary programs 
This is not the recommended alternative. 
Alternative 2  Complete the work using Port staff only. Port staff is already heavily involved in
project direction, legal analysis, and project management, and will continue to perform these
services. The nature and extent of the technical and legal work required to complete this work
is substantial, and would require a large number of additional staff with additional expertise in
a number of highly technical specialty areas. Contracts would still be required for such work as
laboratory analysis. This is not the recommended alternative. 
Cost Implications: 
Pros: 
(1) Reduces staff costs for contract administration 
(2) Additional hired employees would provide flexible work force 
(3) Provides trained Port workforce with specific technical expertise 
(4) Provides consistent reporting and documentation 


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COMMISSION AGENDA  Action Item No. 4c                       Page 8 of 14 
Meeting Date: November 8, 2016 
Cons: 
(1) Servicing peak seasonal demand requires hiring additional full-time employees resulting
in un-utilized labor through the majority of the year. 
(2) Requires additional Port staff 
(3) Would require purchase of substantial amount of specialized sampling equipment 
(4) Would still require some contracting for tasks staff would not be able to perform such as
laboratory analysis 
(5) Many of the sites are joint sites with multiple partners who may not agree to the Port
performing the work. 
This is not the recommended alternative. 
Alternative 3  Complete the work using outside consultants and contractors only (Port or
other partners as contracting agent or outside support). Outside consultants and contractors
have sufficient numbers and types of specialists necessary for timely and cost effective
completion of this work; however, the work would be more costly than if some Port staff were
also involved. This is not the recommended alternative. 
Cost Implications: 
Pros: 
(1) This will provide for a competitive procurement process and encourage small business
participation 
(2) Provides full service support and expertise 
(3) Provides staff with the tools to respond in a timely manner to new requests from
Ecology 
Cons: 
(1) Increase staff time to track, compile and manage contractor reports. 
(2) Prime contractor would charge to manage these services 
(3) Reduces technical development opportunities for Port staff 
(4) This approach would result in the loss of in-house historical knowledge of Port owned
sites. 
Alternative 4  Complete the work using a combination of Port staff (Alternative 2) and outside
consultants and contractors (Alternative 3) that maximizes the ability for the Port to direct
cleanup efforts and maximize the effectiveness of staff. This is the recommended alternative. 
Cost Implications: 
Pros: 
(1) Provides contracted and Port work force that can increase or decrease service level of
effort as needed. 
(2) Provides trained workforce with specific technical expertise 
(3) Provides consistent reporting and documentation 
(4) Provides opportunities for businesses, including small businesses, to participate in Port
work 

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COMMISSION AGENDA  Action Item No. 4c                       Page 9 of 14 
Meeting Date: November 8, 2016 
(5) Provides staff with the tools to respond in a timely manner to new requests from the
regulator 
(6) Does not require a large expenditure for field equipment or the long-term maintenance
of the equipment 
(7) Allows for technical development of Port staff 
Cons: 
(1) Requires more staff time than alternative 3. 
(2) Coordination is required between Port Environmental Program Manager and consultant. 
This is the recommended alternative. 
FINANCIAL IMPLICATIONS 
The following table summarizes 2017 through 2021 forecasted spending for environmental
remediation projects. Forecasted spending reflects projects described in the Scope of Work.
Five-Year Spending Plan 
$s in Thousands           2017     2018    2019     2020     2021    2017-2021 
Project Spending          $17,700  $ 28,800  $8,400    $10,900  $15,600     $81,400 
Cash from 3rd Parties*       $(1,700)    $(900)   $(900)     $(900)       $ -    $(4,400) 
Net Port Share            $16,000   $27,900  $7,500    $10,000  $15,600    $77,000 
*Note: "Cash from 3rd parties" is defined below. Forecasts for payments from third parties are only
included when the liabilities have been booked. Forecasted amounts do not include estimates of
possible recoveries from grants, insurance or legal settlements. A portion of the cash from 3rd parties
is in the authorization but the work is managed by another organization. An estimated $10.7 million
has been booked but the Port is not the lead on the work.
Budget/Authorization Summary 
$s in Thousands         Spending      Budget    Unspent       Recovery 
2011              $11,955     $14,974     $3,019       $(10,089) 
2012               $9,358     $23,600    $14,242       $(4,710) 
2013              $14,067     $21,179     $7,112       $(7,167) 
2014              $18,500     $22,180     $3,680       $(14,256) 
2015               $9,500     $16,804     $7,304       $(4,149) 
2016 thru 9/30/2016           $4,214     $13,900     $9,686       $(2,467) 
Note: Budget does not carry over. Recovery includes money from prior years. 
Annual Budget Status and Source of Funds 
Airport  Airport Development Fund 
Maritime, Economic Development, and homeport liabilities on Northwest Seaport Alliance
managed property  Tax Levy 

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COMMISSION AGENDA  Action Item No. 4c                      Page 10 of 14 
Meeting Date: November 8, 2016 
Financial Analysis and Summary 
Environmental cleanup projects have multiple funding sources: (1) Maritime and Economic
Development non-operating projects are funded by the Port's Tax Levy; (2) Maritime and
Economic Development operating projects are funded by the General Fund; (3) Airport projects
are funded by the Airport Development Fund. In addition, there are supplementary outside
sources of funding, including the following: 
Cash from third parties - Payment from cost sharing or contribution agreements with other
potentially liable parties (PLPs), where the Port functions as a funding conduit for the other
PLPs and the Port holds contracts on behalf of these other PLPs. 
Litigation settlements with other PLPs 
Allocation settlements with other PLPs 
Insurance recoveries from both the Port's insurers and other PLPs' insurers 
Department of Ecology grants 
Future Revenues and Expenses (Total cost of ownership) 
See above 
ADDITIONAL BACKGROUND 
The Port has identified a number of contaminated sites on Maritime, Economic Development,
homeport liabilities on Northwest Seaport Alliance (NWSA) and Aviation properties that must
be investigated and remediated in compliance with federal and state environmental laws and
regulations. In some cases, the Port has been designated by the federal government as a
"Potentially Responsible Party" (PRP), and/or by the state government as a "Potentially Liable
Party" (PLP) for the investigation and cleanup of properties owned by the Port or where the
Port may have contributed to site contamination. 
Although the Port may not bear ultimate liability for the contamination, under federal and state
law, the Port is presumptively liable as the property owner, and it is often practically and
financially beneficial for the Port to take initial responsibility to manage and pay for the
cleanup. 
In many cases, the Port has successfully recovered and/or will seek recovery from other
responsible parties for Port-incurred investigation and cleanup costs. The Port also has been
successful in receiving Model Toxics Control Act (MTCA) grant funds to pay part of the cleanup
costs. The Port's goals are to cost-effectively complete this environmentally responsible work
and to maximize work accomplished by or paid for by the parties responsible for the conditions
encountered (or others, such as insurance companies, who represent them).
To manage such environmental expenditures, the Port also encourages, coordinates with, and
oversees the investigation and cleanup of sites by other responsible parties, to assure that legal
requirements are met and that Port liabilities are minimized. Regardless of whether the Port

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COMMISSION AGENDA  Action Item No. 4c                      Page 11 of 14 
Meeting Date: November 8, 2016 
conducts the investigation and remediation directly, or oversees the proper performance of
that work by other responsible parties, the Port provides a valuable public benefit by acting as a
catalyst in expediting appropriate environmental management of these sites. 
Accounting rules require that the Port "book" or establish a liability on its balance sheet for
environmental remediation when the Port's obligation meets specified definitions of certainty
and the liability amount can be reasonably estimated. When an environmental remediation
liability is booked, an expense is also recorded in the current period for the future
expenditures. The Port develops its environmental remediation liability forecasts in compliance
with Government Accounting Standards Board (GASB) Statement No. 49 "Accounting and
Financial Reporting for Pollution Remediation Obligations." 
Environmental liability expenditures are authorized in one of two ways: 
1.  If the environmental costs are incurred in the course of, or incidental to, a construction
project, the Commission authorization occurs as part of the authorization for the overall
construction project. Examples of this include asbestos removal, offsite soil disposal
during construction, or upland dredge material disposal. 
2.  If the environmental cost is not associated with a capital construction project or
maintenance (including asbestos and lead), but is a stand-alone pollution remediation
project, the expenditure is authorized through one annual action. 
Since 1993, the Commission has approved annual environmental expenditures. In addition,
Commission authorization is obtained prior to entering into legal commitments for
investigation or cleanup actions, such as an Agreed Order, Administrative Order on Consent
(AOC), or Administrative Settlement Agreement and Order on Consent (ASAOC) (collectively 
referred to as "Orders"). Under the Orders, the Port is required to pay agency oversight costs.
Further, to the extent required by the General Delegation of Authority, Central Procurement
Office contract actions in support of approved environmental projects may require additional
Commission authorization. 
Since 1993, the Port has booked liabilities to recognize these obligations. While Port
environmental cleanup projects typically span several years, more complex projects have been
active for over 15 years. 
From 2011 to 2015, the actual amount spent under the annual ERL authorizations was $63.4
million. 
We make significant efforts to recover the costs we spend on environmental remediation.
Monies recovered between 2006 and 2015 were $107.6 million, with recoveries between 2006
and 2010 of $67.0 million and recoveries between 2011 and 2015 of $40.6 million. Current year
recoveries through September 30, 2016, were $2.5 million. 

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COMMISSION AGENDA  Action Item No. 4c                      Page 12 of 14 
Meeting Date: November 8, 2016 
ATTACHMENTS TO THIS BRIEFING 
(1) Map of ERL Sites North Properties Maritime, Economic Development 
(2) Map of ERL sites South Properties Maritime, Economic Development and NWSA 
(3) Map of ERL Sites Aviation 
PREVIOUS COMMISSION ACTIONS OR BRIEFINGS 
December 8, 2015  the Commission approved the 2016 (1) spend environmental
remediation liabilities funds for 2016 in the amount of $13,900,000; (2) approving a fiveyear
spending plan of $71,700,000 for the Environmental Remediation Liability (ERL)
Program for the Seaport, Real Estate, and Aviation Divisions for 2016-2020. 
December 1, 2014  the Commission approved the 2015 project-wide authorization of (1) a
five-year spending plan of $36,804,000 for the Environmental Remediation Liability
(ERL) Program for the Seaport, Real Estate, and Aviation Divisions for 2015-2019; and (2)
environmental remediation liabilities funds for 2015 in the amount of $36,804,00, of
which (a) $16,804,000 is forecasted to be spent in 2015 and (b) an amount estimated
not to exceed $20,000,000 of the remaining funds approved in the five-year plan will be
obligated during 2015 to be spent in future years. 
December 3, 2013  the Commission approved the project-wide authorization of (1) a fiveyear
spending plan of $106,740,000 for the Environmental Remediation Liability (ERL)
Program for the Seaport, Real Estate, and Aviation Divisions for 2014-2018; and (2)
environmental remediation liabilities funds for 2014 in the amount of $42,180,000, of
which (a) $22,180,000 is forecasted to be spent in 2014 and (b) an amount estimated
not to exceed $20,000,000 of the remaining funds approved in the five-year plan will be
obligated during 2014 to be spent in future years. 
December 4, 2012 -  the Commission approved the project-wide authorization of
environmental remediation liabilities funds for 2013 in the amount of $44,179,000, of
which (a) $21,179,000 may be spent in 2013 and (b) an amount estimated not to exceed
$23,000,000 of the remaining funds approved in the five-year plan will be obligated
during 2013 to be spent in future years. Commission approved a five-year spending plan
of $116,182,000 for the Environmental Remediation Liability Program for the Seaport,
Real Estate, and Aviation Divisions for 2013-2017. 
December 6, 2011 - the Commission approved the project-wide authorization expenditure
of $23,600,000 for environmental cleanup action on Port properties during 2012.
Obligating contracts (POs) valued at $32,900,000 in 2012 for work that will be
performed in later years. Commission approved the five-year spending plan of
$91,100,000 for the Environmental Remediation Liability Program for Seaport, Real
Estate and Airport for 2012 through 2016. 

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COMMISSION AGENDA  Action Item No. 4c                      Page 13 of 14 
Meeting Date: November 8, 2016 
December 7, 2010 - the Commission approved the project-wide authorization expenditure
of $14,974,000 for environmental cleanup action on Port properties during 2011.
Obligation of work in later years for $16,200,000. 
November 30, 2009 - the Commission approved the project-wide authorization expenditure
of $13,141,000 for environmental cleanup action on Port properties during 2010. 
December 9, 2008 - the Commission approved the project-wide authorization expenditure
of $10,396,000 for environmental cleanup action on Port properties during 2009.
Expenditures for 2009 were ultimately limited to 7,455,000. 
December 1, 2007 - the Commission approved the project-wide authorization expenditure
of $11,833,000 for environmental cleanup action on Port properties during 2008.
Expenditures for 2008 were ultimately limited to $11,322,258. 
December 12, 2006 - the Commission approved the project-wide authorization expenditure
of $7,756,549 for environmental cleanup action on Port properties during 2007.
Expenditures for 2007 were ultimately limited to $7,537,286. 
June 27, 2006 -  the Commission approved an increase in the 2006 project-wide
authorization for environmental cleanup action on Port properties, to increase the
authorization in the amount of $6,000,000 to $14,705,760. Expenditures for 2006 were
ultimately limited to $11,087,873.38. 
December 13, 2005 - the Commission approved the project-wide authorization expenditure
of $8,705,760 for environmental cleanup action on Port properties during 2006. 
March 23, 2005 - the Commission approved the project-wide authorization expenditure of
$8,102,222, for environmental cleanup action on Port properties during 2005. Actual
expenditures for 2005 were ultimately limited to $6,255,791. 
March 23, 2004 - the Commission approved the project-wide authorization expenditure of
$8,081,000, for environmental cleanup action on Port properties during 2004. Actual
expenditures for 2004 were ultimately limited to $2,136,943. 
March 11, 2003 - the Commission approved the project-wide authorization expenditure of
$4,999,000 for environmental cleanup action on Port properties and for potential
environmental liabilities during 2003. Actual expenditures for 2003 were ultimately
limited to $2,459,870.
June 11, 2002 - the Commission approved the expenditure of $1,500,000 and contract
amendments for the Environmental Protection Agency's (EPA) Order on Consent to
continue work on the Lower Duwamish Sediments Superfund site and the East
Waterway Sediment Operable Unit of the Harbor Island Superfund Site.

Revised March 28, 2016

COMMISSION AGENDA  Action Item No. 4c                      Page 14 of 14 
Meeting Date: November 8, 2016 
July 10, 2001 - the Commission approved the expenditure of $5,100,000 for nine Aviation
projects and six Seaport projects during 2001. 
March 14, 2000 - the Commission approved the expenditure of $1,000,000 for aquatic
sediment management for participating in the development and implementation of
federal and state laws and regulations relating to the disposition of contaminated
aquatic sediments, and the expenditure of $2,000,000 for cleanup-related investigations
at the former Chevron Oil Terminal site at Terminal 30. 
August 24, 1999 - the Commission approved the expenditure of $800,000 for environmental
cleanup of Port property adjacent to the Malarkey Asphalt Co. site. 
June 8, 1999 - the Commission approved the expenditure of $300,000 to conduct the
Industrial Waste System Hydrogeological Study required by the Ecology as a
performance condition of the 1998 National Pollution Discharge and Elimination System
Permit. 
February 25, 1997 - the Commission approved the expenditure of $1,100,000 to conduct
the STIA Ground Water Study required by a Washington Ecology Model Toxics Control
Act (MTCA) Agreed Order. 
February 27, 1996 - the Commission approved the expenditure of $2,325,000 for eleven
projects during 1996. 
March 28, 1995 - the Commission approved the expenditure of $1,875,000 for nine projects
during 1995. 
March 8, 1994 - the Commission approved the expenditure of $776,000 for eleven projects
during 1994. 
July 13, 1993 - the Commission approved the expenditure of $1,050,000 for eight projects
during 1993. 






Revised March 28, 2016

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