Staff & Board

TRK is proud to have been born out of activism which represented the first application of the Clean Water Act in the country in 1986, when local citizens came together to demand the government clean up a polluted river that had long since exceeded maximum daily pollution load limits, with 13,800 plant violations cited. Today the Tualatin River is much cleaner, but development challenges remain and we seek to inspire new generations of river ambassadors who will bring the message of clean water and its link to the economy, human health, and ecology to the forefront.



  • Ed Casuga, Board Member

    Ed was a Human Resources Manager for ARRIS, a telecommunications company that sells products, software and services primarily to major cable companies to deliver Video on Demand to the household users. He earned a BS Degree in Business Administration – Accounting Concentration from San Jose State University. Ed chairs TRK’s Fundraising and Events Committee.

  • Alfred Dinsdale, Board Member

    Alfred Dinsdale has lived just outside Sherwood with his wife Julie and three boys for the past sixteen years. He owns and operates McKay Creek Farm, Dinsdale Landscape Contractors Inc, and Dinsdale Nursery. He has been a landscape contractor for over twenty-five years and specializes in private gardens with an emphasis on native and woodland […]

  • Cathy Filgas, Board Member

    Cathy Filgas grew up in Eureka, CA, in the heart of Humboldt County and the redwoods, which primed her passion for nature and conservation. Cathy and her husband founded Anthro Corporation in 1984, and after selling the company in 2015, they co-founded the Tareen Filgas Foundation, whose mission is to save birds and their environments. […]

  • Harbans Lal, Boar member

    Harbans Lal joins the board backed with 40 years experience as an agricultural engineer and having worked on various aspects of natural resource management with prime objective of improving and managing waterways, ranging from a single agricultural field to an entire watershed. For the past decade, he has served as an USDA/NRCS environmental engineer on […]

  • Carmen Madrid, Board Member

    Carmen is the Washington County Organizing Director for the Center for Intercultural Organizing (, where she leads efforts to expand CIO’s organizing in Washington County. Carmen’s educational background includes a business degree in systems and quantitative analysis from Portland State University. She has also worked over 20 years in Oregon’s healthcare insurance business with employers […]