PORT OF SEATTLE 
MEMORANDUM 
COMMISSION AGENDA             Item No.      5b 
ACTION ITEM             Date of Meeting   March 5, 2013 

DATE:    February 22, 2013 
TO:     Tay Yoshitani, Chief Executive Officer 
FROM:    Rees Robinson, Senior Marine Maintenance Project Manager 
Dwight Rives, Director, Port Construction Services 
SUBJECT:   Funding Increase for the Terminal 91 Sewer Lift Station #4 Replacement 
(Project #104358, CIP #C800186) 
Amount of This Request:  $110,000        Source of Funds:    General Fund 
Est. State and Local Taxes: N/A            Est. Jobs Created:   N/A 
Est. Total Project Cost:    $425,000 
ACTION REQUESTED: 
Request Commission authorization for the Chief Executive Officer to increase the Terminal 91 
(T-91) Sewer Lift Station #4 Replacement project budget by $110,000 for a total project budget
authorization of $425,000.
SYNOPSIS: 
The T-91 Sewer Lift Station #4 is the final sewage collection point for all buildings on Pier 90
and the T-91 Short Fill before discharging into the City of Seattle sanitary sewer system. It is
well past its service life and suffered a major equipment failure in 2007. 
The initial project budget for the Sewer Lift Station Replacement for $250,000 was included in
the 2012 approved capital budget and was authorized through the small project authorization
process. The initial budget was based on cost estimates determined during preliminary design.
Subsequently, project scope increased, Port Engineering completed design, and construction cost
estimates were refined, whereupon Port staff requested Commission authorization of an
additional $65,000 to complete the project in August 2012. 
Unforeseen underground conditions have resulted in construction costs beyond those estimated
at the time of Commission authorization. The majority of the increased costs resulted from a
deep excavation that was required in order to place the lift station wet well. The depth of

COMMISSION AGENDA 
Tay Yoshitani, Chief Executive Officer 
February 22, 2013 
Page 2 of 4 
excavation was substantially below ground water level, and in combination with sandy soil
conditions, the effort resulted in significant erosion of surrounding area. Consequently, the
volume of soil, approximately 600 tons, removed from the excavation was considerably larger
than what was originally anticipated. The excavated spoils are unsuitable for re-use and
additional costs will be incurred for proper disposal. Additional costs were also incurred for
furnishing and placing of new backfill materials. The unexpected construction costs have
depleted the project construction budget. Port staff is requesting an additional $110,000 to
complete construction of the T-91 Sewer Lift Station #4 Replacement project. Additional funds
for the project are available due to under-spending in other Seaport small project CIPs.
BACKGROUND: 
T-91 Sewer Lift Station #4 serves all the buildings on Pier 90 and the shortfill at the landward
end of the pier. Lift stations are used to pump sewage from a lower to a higher elevation. The
existing lift station was installed in 1981 and was repaired with a temporary fix in 2007,
following a major equipment failure. 
This project will allow sewer system improvements and complete replacement of Sewer Lift
Station #4 at T-91. The project scope replaces the existing lift station and resolves system
deficiencies. 
Construction of the sewer lift station replacement and system improvements began in October
2012. Pending Commission authorization, project construction is expected to be complete in
April 2013. 
PROJECT JUSTIFICATION: 
T-91 Lift Station #4 is well past its service life. It was installed in 1981. The typical service life
for a lift station is 15 to 20 years. The portable pump and controls, which were installed as a
temporary repair in 2007, periodically break down and require repair. This lift station is critical
as it is the final sewage collection point from the buildings on Pier 90 and the T-91 shortfill prior
to discharge to the City sewer main. It is essential that it be reliable. 
Project Objectives: 
Install new, reliable sewer lift station 
Install deeper wet well 
Correct sanitary sewer line slopes 
Provide easy-to-maintain system

COMMISSION AGENDA 
Tay Yoshitani, Chief Executive Officer 
February 22, 2013 
Page 3 of 4 
PROJECT SCOPE OF WORK AND SCHEDULE: 
Scope of Work: 
The scope of work is to replace existing sewer lift station #4 with a new lift station and improve
the pipe system feeding the lift station. The work includes replacement of a wet well,
submersible pumps, pump controller, valve vault, and replacement and regrading of pipe feeding
the lift station. 
Schedule: 
Design of the lift station is complete. Construction began in October 2012. Equipment and
materials have been procured with delivery expected by March 15, 2013. Construction is
estimated to be complete by April 15, 2013. 
FINANCIAL IMPLICATIONS: 
Budget/Authorization Summary:                           Total Project 
Original Budget  Small Project Authorization                        $250,000 
Previous Authorizations                                       $ 65,000 
Current Request For Authorization                               $110,000 
Total Authorizations, Including This Request                         $425,000 
Remaining Budget To Be Authorized                               $0 
Total Estimated Project Cost                                   $425,000 
Project Cost Breakdown:                      This Request    Total Project 
Construction: Soil Handling, Hauling, Disposal            $110,000       $320,000 
Construction Management                           $0       $10,000 
Design                                        $0       $59,000 
Project Management                               $0       $30,000 
State & Local Taxes (estimated)                          $0        $6,000 
Total                                         $110,000       $425,000 
Budget Status and Source of Funds: 
This project was included in the 2012 approved capital budget as a Small Capital Project under
CIP #C800186, in the amount of $250,000. An additional $65,000 in funding was approved by
Commission in August 2012 for a total project budget of $315,000. The additional $110,000 that
is now requested to fully fund this project is available due to cancelation of, or timing delays in, 
other Seaport capital projects. 
This project will be funded from the General Fund.

COMMISSION AGENDA 
Tay Yoshitani, Chief Executive Officer 
February 22, 2013 
Page 4 of 4 
Financial Analysis and Summary: 
CIP Category      Renewal/Enhancement 
Project Type       Renewal & Replacement 
Risk adjusted
N/A 
discount rate 
Key risk factors      Construction costs may increase if required work is more
extensive than currently known. This risk is deemed to be
relatively low, as the design process for this project is complete
and construction is underway. 
Project schedule could be delayed due to material availability,
weather, and the need to minimize disruptions to terminal
operations and existing tenants/customers. 
Project cost for
$425,000 
analysis 
Business Unit (BU)   Seaport Industrial Properties 
Effect on business   This asset replacement project will not generate any incremental
performance       revenue. However, it will eliminate disruptions due to sewer lift
station failures to terminal operations, tenants, and customers.
Incremental depreciation expense from this project is estimated at
$21,250/year, based on a 20 year asset life. NOI after Depreciation
will decrease by the associated depreciation from this project. 
IRR/NPV        N/A 
ALTERNATIVES CONSIDERED AND THEIR IMPLICATIONS: 
Alternative 1: Stop work on the project. Do not complete installation of the new lift station. The
existing lift station will continue to have failures and require repair. Sewage backups will occur.
This is not the recommended alternative. 
Alternative 2: Continue with the planned T-91 Lift Station #4 Replacement Project.
Authorization of an additional $110,000 for a total project authorization of $425,000 will allow
sewer system improvements and complete replacement of the lift station. This is the
recommended alternative. 
OTHER DOCUMENTS ASSOCIATED WITH THIS REQUEST: 
None 
PREVIOUS COMMISSION ACTIONS OR BRIEFINGS: 
August 7, 2012  The Commission authorized $65,000 for a total project authorization of
$315,000.