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Marysville Downtown Stormwater Treatment Project Receives PNCWA Award

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Boise, ID – The Pacific Northwest Clean Water Association (PNCWA) presented the City of Marysville, WA Downtown Stormwater Treatment project with the Innovative Stormwater Project award during the organization’s 2024 conference, held in Boise, ID.

Three people stand on a stage at an award ceremony with the person in the middle holding a plaque.

Theo Prince (Parametrix Civil Engineer), Steve Miller (City of Marysville Project Manager), and Layne McWilliams (Parametrix/PNCWA President) at the PNCWA Awards Ceremony in Boise on September 10. Photo courtesy of PNCWA.

The stormwater facility, adjacent to Ebey Waterfront Park, can treat 463 acres of urban runoff within its small footprint thanks to an innovative filter media and on-site lift station. A $7.6 million grant from the Washington State Department of Ecology was secured to partially fund this project.

Water flows through a trough with rocks and grass on either side.

Stormwater runoff flows through troughs in the park before being filtered.

The City of Marysville has a long-term vision to improve the waterfront area for the community to enjoy, creating a unique riverside commercial and recreational district. The regional stormwater facility was incorporated into this vision.

A sign along a walkway with grass and a bridge in the background.

Educational signage along a walkway in the stormwater park.

The stormwater park serves a dual purpose in treating stormwater to improve water quality while providing a recreational place for the community. It was designed to integrate into the future park expansion and complement park design. Educational kiosks inform the public about the importance of water quality and stormwater treatment. Walkways through the stormwater park link up to the larger trail system as part of the future Ebey Waterfront Park expansion.

A man walks along a sidewalk with the stormwater park in the background.

A person walks along the sidewalk in front of the stormwater park.

Parametrix led the design and provided support through construction. Teaming partners included MacLeod Reckord for landscape architecture and HWA for geotechnical support.

About Parametrix

Parametrix is a 100-percent employee-owned consulting firm helping clients deliver resilient infrastructure, livable communities, and environmentally sustainable solutions. From offices across the Western United States, our team of engineers, planners, scientists, landscape architects, surveyors, project managers, and construction managers are helping our clients imagine what’s possible and create tomorrow, together. Learn more at https://www.parametrix.com/

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