COMMISSION 
AGENDA MEMORANDUM                        Item No.          8j 
ACTION ITEM                            Date of Meeting     November 8, 2022 

DATE:     October 10, 2022 
TO:        Stephen P. Metruck, Executive Director 
FROM:    Stephanie Jones Stebbins, Managing Director, Maritime 
Delmas Whittaker, Director Marine Maintenance 
Shannon Zink, Marine Maintenance Sr. Manager, Fleet and Facilities 
Levi Clark, Marine Maintenance, Manager, Fleet and Transportation 
SUBJECT:  Marine Maintenance Catch Basin Cleaner Vehicle Replacement 
Amount of this request:                 $700,000 
Total estimated project cost:            $700,000 
ACTION REQUESTED 
Request Commission authorization for the Executive Director to authorize the purchase of one
industrial catch basin cleaning truck, to replace an existing and obsolete catch basin cleaning
truck located at Marine Maintenance.
EXECUTIVE SUMMARY 
This project will replace an existing asset that is fifteen years old and at the end of its useful
mechanical life.  This new asset will be used jointly by Marine Maintenance and the Storm
Water Utility to clean storm water drain infrastructure, vacuum catch basins, clear clogged lines
(stormwater, industrial wastewater), and perform pothole excavations. The current equipment
has become mechanically unreliable and has been augmented with the use of rented
equipment. The expected useful mechanical lifecycle of this new asset is 12 years. This project
aligns with the Port Sustainable Fleet Plan by utilizing renewable and low carbon fuel (R99), it
will have a fuel-saving single engine design (outgoing asset is dual engine), and the latest
exhaust aftertreatment technology.
JUSTIFICATION 
This project gives Marine Maintenance and the Storm Water Utility access to a reliable catch
basin cleaner truck granting the ability to quickly clean stormwater and combined system
infrastructure and allow immediate 24/7 spill response to our properties. This new asset will
increase our regulatory compliance to respond and capture spills, and debris, before they reach
our waterways from our Maritime properties. 

Template revised January 10, 2019.

             COMMISSION AGENDA – Action Item No. _8j_                                 Page 2 of 5 
Meeting Date: November 8, 2022 
This project will increase the capacity of Port staff to meet the Long-Range Plan Century Agenda
Goal 4, Objective 10 - “to meet or exceed agency requirements for stormwater leaving portowned
or operated facilities.” Another key metric listed in the Stormwater Utility 5-year 
strategic plan, Category 1, Strategy #1, Task 2 is to rehabilitate 75% of the stormwater system
by 2035. Additionally, Marine Maintenance crafts will have access to a machine that will allow
them to pothole and hydro excavate  as needed during maintenance functions and
infrastructure repairs, reducing the manual labor and additional machinery traditionally used
during precise excavations. 
Diversity in Contracting 
Diversity in Contracting has reviewed and found that a WMBE Goal is not feasible on an
equipment purchase such as this. 
DETAILS 
Port staff has dedicated labor to clean, assess, and repair stormwater and combined sewer
infrastructure including pipe assets. This equipment is the only means to recover the debris
associated with this required regulatory maintenance. Additionally, this equipment is the main
asset needed to recover spills that enter our MS4.
The Port currently owns two catch basin cleaner trucks that support the Stormwater Pollution
Prevention Plan (SWPPP), Marine Maintenance repair functions, and emergency work. One
catch basin cleaner truck is fully utilized by the Storm Water Utility and therefore not available
for the work in question. This project will replace the second truck at Marine Maintenance that
is shared between Marine Maintenance led repair projects and the Storm Water Utility crew to
supplement their peak seasonal work. This second unit has recently failed, mechanically, and is
past its useful life cycle. 
This equipment will run on renewable diesel (R99), utilize the latest exhaust aftertreatment
technology, and will have a single engine design to comply with the Port’s Sustainable Fleet
Plan guidelines. This project also aligns the port to meet Century Agenda goals related to
emissions standards while minimizing total cost of ownership. 
Scope of Work 
The scope of work for the project is to develop vehicle and equipment specifications that meet
the project requirements and procure the equipment in a timely fashion.  This type  of
equipment is  currently available on Washington State  Department of Enterprise Services 
Contracts, as well as Sourcewell National Cooperative Contracts, therefore there may be
opportunity to reduce acquisition time. 
Schedule 
Complete acquisition and receive operational system as soon as possible. The market for this
type of equipment is volatile due to supply chain constraints, so delivery times vary. 

Template revised June 27, 2019 (Diversity in Contracting).

             COMMISSION AGENDA – Action Item No. _8j_                                 Page 3 of 5 
Meeting Date: November 8, 2022 

Cost Breakdown                                     This Request           Total Project 
Purchase                                                $700,000              $700,000 
Total                                                           $700,000                $700,000 
ALTERNATIVES AND IMPLICATIONS CONSIDERED 
Alternative 1  –  Rent industrial catch basin cleaner truck on an annual basis  in lieu of
replacement. 
Cost Implications: Catch basin cleaner trucks can be rented through the Washington State
Department of Enterprise services contract at a rate of $158,400 per year, or $1,901,000 over
the 12-year life cycle of the proposed asset.  That rate is expected to increase 3-5% per year
over the 12-year period we would operate the truck. Additionally, it costs $13,800 per year to
fuel an industrial catch basin cleaner.  The total cost to operate a rented catch basin cleaner
truck over a 12-year period is estimated to be $2,066,600 at net present value. 
Pros: 
(1)   Maintenance costs are included in the annual rental fees. 
(2)   Costs can be allocated directly to maintenance or capital projects. 
Cons: 
(1)   Highest cost alternative. 
(2)   Equipment offered for rent may not be most fuel-efficient option. 
(3)   Catch Basin Cleaner trucks are in high demand in the rental market and there is no
guarantee that the Port could secure a long-term rental. 
This is not the recommended alternative. 
Alternative 2 – Contract with an outside service who provides an industrial catch basin cleaning
truck and crew. 
Cost Implications: Several local vendors can provide this service on an as needed basis. The
Port has several contracts for similar services. Reviewing past service costs, the annual cost to
hire this work out is estimated to be $1,092,000, or $13,104,000 over a 12-year life cycle of the
proposed asset. 
Pros: 
(1)   The Port does not have to invest in a large capital asset 
(2)   Direct maintenance costs are avoided that would have applied to the capital asset 
Cons: 
(1)   Lack of exclusivity and priority when requesting work from the contractor 
(2)   Contractor lacks institutional facility asset knowledge and expertise 
(3)   Cost is higher than owning and operating our own equipment 
(4)   Facility access is an issue (TWIC Badging, Customer Contacts) 

Template revised June 27, 2019 (Diversity in Contracting).

             COMMISSION AGENDA – Action Item No. _8j_                                 Page 4 of 5 
Meeting Date: November 8, 2022 
(5)   Contractor availability is an issue, lack of off hour call response or 24/7 spill response 
(6)   Subpar equipment and lower maintenance standards could delay response or projects 
(7)   Lack of financial transparency in the SWU fund and fees 
(8)   Inconsistent documentation of work conducted 
(9)   Inconsistent proof of work conducted for regulatory compliance 
This is not the recommended alternative. 
Alternative 3 – Purchase a new industrial catch basin cleaner as a replacement to the existing
unit that has mechanically failed.
Cost Implications: The estimated cost of purchasing a new industrial catch basin cleaner, prep
work to get it ready for service, and licensing is just under $700,000.  The annual Fuel and
Maintenance costs for a catch basin cleaner are $30,500. Estimated total cost of ownership is
$1,066,000 over the 12-year life cycle. 
Pros: 
(1)   This asset would be built to Port specifications to meet Port specific projects and usecase.
(2)   This asset would be specified and designed to meet our Sustainable Fleet Plan and
Century Agenda goals related to emissions reduction standards and minimizing cost of
ownership. 
(3)   This asset would assist Port crews in upholding their Stormwater pollution prevention
plan (SWPPP) requirements. 
(4)   This alternative provides an asset that is available and ready for use to address 
planned or emergent work. 
(5)   This alternative is the lowest cost alternative when valued over the 12-year lifecycle of
the equipment. 
Cons: 
(1)   High initial capital cost. 
(2)   Maintenance and fuel costs expected to be approximately $26,700 per year with NPV
of $320,400 (figured into the total cost of ownership). 
(3)   This alternative requires the Port to take responsibility for maintaining the asset,
which is not required in the other alternatives 
This is the recommended alternative. 
FINANCIAL IMPLICATIONS 
Cost Estimate/Authorization Summary              Capital        Expense           Total 
COST ESTIMATE 
Original estimate                                   $700,000               $0        $700,000 
AUTHORIZATION 
Previous authorizations                                    0                0                0 

Template revised June 27, 2019 (Diversity in Contracting).

             COMMISSION AGENDA – Action Item No. _8j_                                 Page 5 of 5 
Meeting Date: November 8, 2022 
Current request for authorization                  $700,000                0        $700,000 
Total authorizations, including this request         $700,000                0        $700,000 
Remaining amount to be authorized                    $0             $0             $0 
Annual Budget Status and Source of Funds 
This project was included in the approved 2022 Capital Plan under C801250 Catch Basin Cleaner
with a total project cost of $700,000. 
This purchase will be funded by the General Fund. 
Financial Analysis and Summary 
Project cost for analysis              $700,000 
Business Unit (BU)                  Marine Maintenance 
Effect on business performance     This project will increase depreciation expense by
(NOI after depreciation)             $70,000 per year with a 10-year depreciation schedule. 
IRR/NPV (if relevant)                NA 
CPE Impact                       NA 
ADDITIONAL BACKGROUND 
On November 24, 2014, the Port adopted Resolution No. 3696 allowing the Port to establish a
Port Stormwater Utility and adopting a Stormwater Utility charter. Services and obligations in
the Port of Seattle Stormwater Utility Charter reads “The Utility shall provide services, facilities,
systems, and programs for surface water and Stormwater management and pollution control to
customers within the service area as set forth in this Charter 
ATTACHMENTS TO THIS REQUEST 
None 
PREVIOUS COMMISSION ACTIONS OR BRIEFINGS 
None 





Template revised June 27, 2019 (Diversity in Contracting).