PORT OF SEATTLE 
MEMORANDUM 

COMMISSION AGENDA                         Item No.       5c 
Date of Meeting   October 12, 2010 
DATE:      October 1, 2010 
TO:         Tay Yoshitani, Chief Executive Officer 
FROM:     Elizabeth Leavitt, Director, Aviation Environmental Programs 
Paul Agid, Manager, Aviation Environmental Programs 
Don Robbins, Sr. Environmental Program Manager 
SUBJECT:   Amendment of the Professional Services Agreement for environmental
investigations, remediation, and associated regulatory coordination activities for
the Lora Lake Apartments Site 
Amount of This Request: $950,000             Source of Funds: ADF 
Total Contract Cost: $2,505,315                Estimated Number of Workers
Employed: N/A 
ACTION REQUESTED: 
Authorization for the Chief Executive Officer to amend the Professional Service Agreement with
Floyd|Snider for environmental investigation and evaluation of remediation methods for the Lora
Lake Apartments Site in the amount of $950,000 (to increase the contract from $1,555,315 to
$2,505,315) and to provide notification to the Port of Seattle Commission, in accordance with
RCW 53.19.060, that the amended amount exceeds 50% of the original contract amount. 
SYNOPSIS: 
Soil and ground water at the Lora Lake Apartments site was contaminated prior to the Port of
Seattle gaining ownership. The contamination is the result of former industrial operations from
the 1940s  1980s. Remediation of the contamination is required by state law, and is necessary
for productive reuse of the site by future redevelopment or other actions. 
The Port has entered into an Agreed Order with the Washington State Department of Ecology
(Ecology) under which the Port will perform a Remedial Investigation (RI) and Feasibility Study 
(FS). The results of the RI/FS will form the basis for site remediation.
Based on public comments received on the draft RI/FS workplan, Ecology has required an
expansion of the investigation to include substantial sample collection and analysis adjacent to
and in Lora Lake, located to the southeast of the Apartment site. Authorizing the work now

COMMISSION AGENDA 
Tay Yoshitani, Chief Executive Officer 
October 1, 2010 
Page 2 
allows staff to perform the necessary planning so that results will be available next summer. The
value of the additional work is $950,000, an increase of 61% over the estimated value of the
previous work scope of $1,555,315. This memo constitutes notification that the amended
amount exceeds 50% of the original contract amount, in accordance with RCW 53.19.060. 
Authorization of expenditures for the Lora Lake Apartments property environmental
management activities was previously approved by the Commission in its 2010 Portwide 
Environmental Reserve spending authorization of November 30, 2009. The additional spending
will be funded from the Airport Development Fund. The majority of additional spending
required by Ecology will occur in 2011. The additional work and associated cost identified in
this memo will also be listed within the 2011 Portwide Environmental Reserve authorization that
will cover approximately 20 various environmental projects and come before the Commission
near the end of 2010.
In accordance with RCW 53.19.060, this memorandum will be placed on file for public
inspection at the Port's bid desk. 
BACKGROUND: 
The Lora Lake Apartments property was the site of a barrel cleaning facility in the 1940s  
1950s, and an auto wrecking yard in the 1960s  1980s. Both of these types of industrial uses 
are known to have had high potential for releasing contaminants to the environment during those 
periods. During the construction of the apartment complex in 1986-87, the developer conducted
environmental investigations and remediation that were approved by Ecology under laws in
place at that time. 
The Port purchased the Lora Lake Apartments property in 1998 in support of the development of
the Seattle-Tacoma International Airport (Sea-Tac) Third Runway. In July 2007 the Port
conducted environmental sampling to obtain information about site conditions for future
property redevelopment. Sample data indicated significant contamination remained at the site. 
Further preliminary investigations confirmed those findings. These preliminary investigations
defined the general character of the contamination. The Port used the results of these
investigations as a basis for protecting against mobilization of contaminants from the site until
appropriate site investigation and remediation were completed. The Port negotiated with
Ecology to complete the necessary remaining detailed site investigations under Ecology
supervision pursuant to a MTCA Agreed Order. The Commission authorized Port execution of
the Agreed Order on June 9, 2001. The RI/FS Agreed Order incorporated a specific scope of
work for conducting investigations to fully characterize the nature and extent of on-site and
associated off-site contamination and evaluating appropriate site remediation methods. Ecology
anticipates issuing, at the conclusion of the work required by the RI/FS Agreed Order, a second
Agreed Order, for supervision of final remediation design and implementation. 
In May of 2009, in anticipation of the MTCA Agreed Order, the Port issued a competitive
procurement for qualified environmental consulting firms to provide all services necessary to

COMMISSION AGENDA 
Tay Yoshitani, Chief Executive Officer 
October 1, 2010 
Page 3 
design and implement a contaminated soil and ground water investigation and remediation of the
Lora Lake Apartments property,  The request for proposal stated that the estimated cost for the
on-site investigation work was $600,000. In addition it stated that, "Additional phases of
investigation, and remediation of the site consistent with an anticipated Remediation Agreed
Order, are included in the Scope of Work, but the value of those scope items and duration of
Work cannot be estimated at this time." The original value of the executed contract was
$1,555,315 which included items negotiated in the final Agreed Order that were not a part of the
$600,000 estimate. To date two amendments to this contract have been executed to add
subcontractors to the consultant team. These amendments both had dollar values of zero.
As a part of the MTCA process Ecology offered the RI Workplan for public comment. The
comments received requested that data characterizing the condition of deep groundwater beneath
the site be collected, and that characterization of Lora Lake be undertaken to determine if site
runoff and stormwater drainage have caused contaminants to migrate to the lake. Based on these
comments Ecology ordered the Port to expand the site boundary and investigation technical
scope. The estimated value of the expansion of the investigation is $950,000. The estimated
cost of the originally scoped investigation was $1,555,315. The value o f the expanded work
requirement and associated professional services agreement is greater than 50%.
Staff today requests that the Commission authorize execution of an amendment to the contract
for $950,000 to complete the additional work required by the Department of Ecology. 
BUSINESS PLAN OBJECTIVES: 
Remediation of the Lora Lake Apartments property will minimize to acceptable levels threats to
the environment caused by historical property uses and operations. Completion of site
remediation is required for cooperative Port  City of Burien property redevelopment. The
product of these efforts, as well as the attendant compliance with regulatory mandates,
management of Port liabilities, and support of the local community, aligns with the goals and
objectives of the Aviation Division Business Plan. Returning the property to productive use
benefits both the Airport and the local community. 
SCOPE OF WORK: 
The principal elements of the addition work required by Ecology at the Lora Lake property are as
follows: 
Prepare a lake specific RI/FS work plan. 
Perform a lake specific investigation as defined in the work plan. 
Incorporate the findings of this investigation into the final RI report 
Include the data collected from the lake parcel in the development of a Feasibility Study
to determine the method of site remediation.

COMMISSION AGENDA 
Tay Yoshitani, Chief Executive Officer 
October 1, 2010 
Page 4 

FINANCIAL IMPLICATIONS: 
Cost Estimate 
The estimated amendment value is $950,000. This would increase the total of this professional
services agreement (PSA) to $2,505,316.
Source of Funds 
All costs will be accounted for as environmental reserves and charged to expense in accordance
with Port Policy AC-9. As such, the Airport Development Fund will be the funding source. 
The Lora Lake Apartments property remediation program was included within the Commission's
2010 environmental reserve spending authorization, approved on November 30, 2009. 
Additional environmental reserves will be established in compliance with Port Policy AC-9, in
2010. The updated reserve amount will be charged against the airfield cost center and will
impact the cost per enplanement (CPE). Additional information will be reported to the
Commission via routine environmental reserve reports and spending authorization requests. 
COMMUNITY/CUSTOMER/ORGANIZATION IMPACTS: 
Elimination of unacceptable levels of environmental risk caused by the presence of contaminants
in soil and groundwater is not only required by state and federal law, it is the hallmark of
responsible environmental stewardship, from the perspectives of both the surrounding residential
and business communities and the customers we serve. Execution of the Agreed Order scope
expansion will commit the Port to remediate the Lora Lake Apartments property, and as
appropriate, Lora Lake, in satisfaction of both regulatory and community interests. 
PROJECT SCHEDULE: 
Planning will begin this winter, and field work on the Lora Lake Parcel would be completed
during the summer of 2011. The Agreed Order schedule estimates completion of the RI/FS 
scope of work by mid-year 2012. 
ALTERNATIVES CONSIDERED / RECOMMENDED ACTION: 
The following alternatives were considered for accomplishing the work described in the Scope of
Work: 
Alternative 1 
Do not conduct the additional investigation of the Lora Lake property. This alternative could
result in the issuance of a unilateral Ecology enforcement order to perform the work, which

COMMISSION AGENDA 
Tay Yoshitani, Chief Executive Officer 
October 1, 2010 
Page 5 
would eliminate Port control over investigation and remediation activity and cost. This
alternative would also represent an unexplained rejection of expressed community concern. This
is not the recommended alternative. 
Alternative 2 
Conduct the additional investigation of the Lora Lake property using Port resources, without
outside consultant assistance. There are insufficient staff resources and expertise to conduct this
remediation without consultant support. This is not the recommended alternative.
Alternative 3 
Issue an additional procurement and potentially retain a different environmental consultant to
perform the expanded investigation. The alternative was rejected because the continuity of the
technical consultant is necessary to maintain the scientific integrity of the investigation of the
expanded site. This is not the recommended alternative. 
Alternative 4 
Amend the existing professional services agreement with the current environmental consultant
(Floyd|Snider) to conduct the additional investigative work on the Lora Lake property, as
required by the Department of Ecology. This alternative will result in identification of any offsite
contamination originating from the Lora Lake Apartments property, identification of
appropriate management of any contamination in Lora Lake that originated at the apartment
property, the satisfaction of Ecology directives as required by state law, and the affirmative
response to concerns expressed by the community. This is the recommended alternative. 
PREVIOUS COMMISSION ACTION: 
On May 5, 2009, the Port Commission authorized procurement of environmental consulting
services to support the Port's implementation of the Lora Lake Apartments property remediation. 
June 9, 2009, the Port Commission authorized execution of an Agreed Order with the
Washington State Department of Ecology, issued under the Model Toxics Control Act, for
environmental investigation and remediation of the Lora Lake Apartments Site. 
On November 30, 2009, the Port Commission approved 2010 expenditure of $13,141,000 from
Port Environmental Reserve funds, for environmental remediation of the various Port properties
for which remediation funds have been reserved. The Lora Lake Apartments property was
included in that authorization request.