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Mr. Grubenhoff was elected to the Commission in November 2009 and began serving in January 2010. He was re-elected in 2015 and his term expires the end of December 2021. He is the 2021 Commission President. He has lived in the Yakima Valley his entire life. He graduated from Sunnyside High School in 1974.
Jim owns and operates an outdoor power equipment and homeowner rental store in Sunnyside. The business has been in Sunnyside since 1959. Mr. Grubenhoff has been very active in the Sunnyside community. He was a former board member of Sunnyside, Inc., an organization that strived to promote and revitalize the Sunnyside business community. He served as a board member of Lower Valley Credit Union for 12 years, serving 3 years as chairman and was a member of the Sunnyside Community Hospital Board of Trustees. He served on the board of the Lower Valley Crisis and Support Services for 10 years and was chairman 3 times. Mr. Grubenhoff has been a member of the Sunnyside Airport advisory board for 5 years. He has also been a member of the Sunnyside Noon Rotary Club for 25 years. In 2013, Mr. Grubenhoff was honored as the Outstanding Public Official by the Sunnyside Chamber of Commerce. Mr. Grubenhoff and his wife, Kathy, reside in Sunnyside and have 5 children plus 6 grandchildren.