Our Staff
Todd Ambs
President
503-542-8388

tambs@rivernetwork.org

Todd Ambs is River Network's fifth President and has worked in the environmental policy field for more than 30 years.

Waverly de Bruijn
Partnership Program Manager
503-542-8397

Waverly de Bruijn serves as River Network's Partnership Program Manager, where she manages and provides services to River Network's Partner organizations.

Matt Burke
Director of Corporate and Community Relations
503-542-8383

E-mail Matt

For the past 12 years, Matt has been fundraising to protect rivers, the last ten in various roles with River Network.

Ryan Carter
Information Technology Specialist
503-542-8386

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Having spent the past 10 years providing technical support for various companies including Microsoft and Symantec, Ryan decided he'd had enough of the 'Cubicle Fortress' and went looking something

Steve Dickens
Health & Environment Director
(802) 858-2160

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Steve directs our Healthy Waters, Healthy Communities Program, which provides tools to communities to investigate the connection between human health problems and environmental contamination.

Dawn DiFuria
Organizational Development Program Associate
503-542-8393

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River Network’s Organizational Development Program Associate, Dawn DiFuria, is responsible for supporting the OD team in various aspects while primarily focusing her efforts on the Watershed Suppor

Merritt Frey
Rivers and Habitat Program Director
801-486-1224

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Merritt Frey is River Network's Habitat Program Director, and is based in Salt Lake City, Utah.

Bevan Griffiths-Sattenspiel
Saving Water, Saving Energy Project Coordinator
503-542-8395

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Bevan works on helping River Network Partners understand, communicate and address global warming through water and energy.

Jean Hamilla
Communications Manager
503-542-8391

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Jean Hamilla is River Network's communications manager, responsible for its branding process and helping ensure River Network's visual face in its web content and design.

Kevin Kasowski
Director of Development and Communications
503-542-8381

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Kevin directs our fundraising and communications programs. Kevin has an M.A. in Journalism from the University of Missouri and an undergraduate degree in ecosystem studies from UCLA.

Gayle Killam
Rivers and Habitat Program Deputy Director
503-542-8387

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Gayle Killam is the Deputy Director of River Network’s Rivers and Habitat Program.

Deb Merchant
National River Rally Coordinator
503-542-8392

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Deb coordinates River Network's celebrated annual National River Rally.

Mary Ellen Olcese
Mid-Atlantic Program Manager
410-745-3053

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Mary Ellen has been with River Network as the Mid-Atlantic Program Manager since January 2008.

J. R. Ralston
Staff Accountant
503-542-8385

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JR was raised on the banks of the Willamette River outside the small town of Oakridge Oregon where, despite the fact that the local town was supported by two lumber mills, the concepts of conservat

Diana Toledo
Southeast Program Manager
828-258-2109

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Ever since watching the damming of the wild Mao River in the mountains of the Dominican Republic in the early 1990s, Diana has been working to support citizen efforts to protect freshwater resource

Stephen Twelker
Human Resources & Office Manager
503-542-8380

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As Human Resources & Office Manager of River Network, Stephen Twelker is responsible for many aspects of the day-to-day operations that allow River Network and its staff to function efficiently

Wendy Wilson
National Director of Organizational Development
208-345-3689

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Wendy Wilson directs River Network's programs to help make river and watershed groups more sustainable and to develop new programs at River Network.