Item No.: 6b 
Date of Meeting: October 2, 2012 
PORT OF SEATTLE 
MEMORANDUM 

DATE:     August 29, 2012 
TO:        Port Commission 
Tay Yoshitani, Chief Executive Officer 
FROM:     Wayne Grotheer, Director, Aviation Project Management Group 
Nora Huey, Director, Central Procurement Office 

SUBJECT:   Notification per RCW 53.19.060 of the Port's intent to amend Professional Services
Agreement P-00316148 by $250,000 for a new total of $3,263,699 which is in excess of 
50% of the original not to exceed value of $2,011,564; new Stantec Engineering Inc. 
Amendment No. 9. 

NOTIFICATION 
The purpose of this memorandum is to provide notification, per the requirements of RCW 53.19.060, of
the Port's intention to amend Professional Services Agreement P-00316148 via Amendment No. 9 by
$250,000 for a new total of $3,263,069, which is in excess of 50% of the original not to exceed value of
$2,011,564. 
This memorandum will be placed on file for public inspection at the Port's bid desk. 

BACKGROUND 
The Port executed an agreement with Stantec Engineering, Inc. on July 29, 2009 to provide engineering
services for the Centralized Precondition Air project (PC-Air Project) at Seattle-Tacoma International
Airport. The initial contract amount was for $2,011,564. Subsequent to execution of the initial contract a
total of 8 amendments have been executed. The attached table lists the amendments and the associated
dates and amounts. Five of the amendments added scope and dollars; however, some of the
amendments were for other purposes. Amendment 1 & 5 changed the schedule of positions and/or rates.
Construction of the PC- Air project is currently in progress. During construction a number unforeseen
conditions have required additional design. Amendment # 9 will address review and analysis of piping
support and seismic bracing in the Preconditioned Air Central Plant. The Contractor selection equipment
and pipe routing that was different than the basis of design in the PCAP area. Technical review of this
installation is needed to confirm that the installation meets current seismic code. Since Stantec Inc. is the
design engineer of record for the current work and this would be the most cost-effective approach. The
not to exceed amount for the analysis is $31,630 and a Service Directive will authorize this work.
Amendment 9 also provides for additional engineering design services for other unforeseen conditions
discovered during construction with a not to exceed amount of $178,370. Therefore, Amendment 9 will
increase the total contract amount by $250,000 from $3,013,069 to $3,263,069. Additional work will be
authorized by task specific service directives. 
No additional amendments beyond Amendment 9 are planned.



Please return this memo and accompanying documentation to Connie Davis (ext. 3073).

CONTACTS 
Contact Mike Kuhlmann, Aviation Project Management, ext. 3227 regarding questions on the
amendment.
Contact Brian Knight, CPO, Service Agreement Manager, ext. 3692, regarding questions on procurement
and the contract amendment process.

ATTACHMENTS 
Stantec Engineering, Inc.  PSA 00316148  Amendment Summary 

CC: 
Port Commission, Mary Gin Kennedy 
Port Bid Desk, Arne Stangeland 
Brian Knight 
Wayne Grotheer 
Larry Lanier 
Shari Fujino 
















Please return this memo and accompanying documentation to Connie Davis (ext. 3073).