The goal of the Collaborative is to leverage federal funds to strategically reduce emissions from the most polluting diesel sources in impacted
communities. The Collaborative seeks to improve air quality and public health by targeting the highest polluting engines with the most cost effective
control strategies.

DERA 2021: Puget Sound
Clean Air Agency -
Electrification of BNSF's
South Seattle Diesel Yard
Truck Fleet

Under the Diesel Emission Reduction Act (DERA), the
U.S. Environmental Protection Agency (EPA) awarded
the Puget Sound Clean Air Agency a $1,000,000 grant
with Fiscal Year 2021 funding. This grant will fund the
replacement of 9 diesel-fueled yard trucks, supporting
reduced emissions and improved air quality in Tukwila,
Washington. The project will be implemented with a cost
share of $1,513,600 and $258,400 in additional leveraged
funds for a total project cost of $2,772,000.

What is the Project?

The Puget Sound Clean Air Agency will work with BNSF to replace 9
diesel-fueled, tier 3 yard trucks with 9 all-electric yard trucks at
BNSF's South Seattle Intermodal Yard. Additionally, Seattle City
Light will assist with establishing charging infrastructure, and the City
of Tukwila will assist in community education and outreach. The
transition to electric yard trucks will significantly reduce diesel
emissions in highly impacted communities, thus improving air quality
in the greater Seattle area.

Why is this Project Important?

This project is in King County, which is on the EPA 2021 Priority Area
List based on its 2014 National Air Toxics Assessment (NATA). In
the 2014 NATA, the Puget Sound region ranked in the top 5 percent
of the nation for potential cancer risk from air toxics. The Agency
estimates that 70 percent of the potential cancer risk in the Puget
Sound region from air toxics stems from diesel fine particles.
Additionally, Tukwila's residential neighborhood of Allentown, located
adjacent to the project site, faces numerous environmental justice
concerns and health disparities. This project will address the issues in
Allentown and improve the air quality by reducing significant, localized
diesel emissions.

What are the Estimated Environmental
Benefits?

The replacement of these diesel yard trucks with all-electric
equipment is projected to directly eliminate the use of -30,000
gallons of diesel fuel and prevent the emissions of 2.7 tons of
particulate matter (PM2.5), 7.3 tons of nitrogen oxides (NO.,), and 334
tons of carbon dioxide (CO2) in the first year. Over the lifetime of the
vehicles, this will result in estimated cumulative emission reductions
of 22.7 tons of NOx, 5.6 tons of PM2.5, 3.0 tons of HC, 15.3 tons of
CO, and 2,248 tons of CO2.

How is this Project Funded?

The West Coast Collaborative is a partnership between leaders from
federal, tribal, state, and local government, the private sector, and
environmental groups committed to reducing diesel emissions along
the West Coast and is part of the National Clean Diesel Campaign:

www.epa.gov/cleandiesel

Where can I find more information?

For more information on the West Coast Collaborative, please visit
our website at: www.westcoastcollaborative.org. For more
information about this project, please contact Sarah Frederick at

Frederick.Sarah@epa.gov


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