Clean Water Services’ Board Selects Diane Taniguchi-Dennis as Utility’s Next Leader

Hillsboro, OR - August 7, 2018

Clean Water Services' Board of Directors named Diane Taniguchi-Dennis Chief Executive Officer of the regional water resources management utility at their August 7 Board meeting. Taniguchi-Dennis, who has served as the District’s Deputy General Manager since 2011, will start her new role on September 1, 2018. 

Taniguchi-Dennis will step in for Bill Gaffi, Clean Water Services' longest serving General Manager who is retiring on August 31 after 24 years of leading the utility. Under Gaffi’s leadership, CWS earned a national reputation for competitive business practices, technical expertise and innovation, and transforming the utility from a focus on pumps, pipes and plants to a focus on watershed restoration and public health. Studies show the Tualatin River is heathier today than it’s been in decades thanks to the community’s investment in advanced wastewater treatment, surface water management and watershed restoration.

Taniguchi-Dennis will be the fifth leader in the District’s 48-year-history. She is a nationally recognized water leader serving on the boards of the National Association of Clean Water Agencies, WateReuse and The Water Research Foundation. 

Taniguchi-Dennis is a licensed Professional Engineer in the State of Oregon and a Board Certified Environmental Engineer. She holds a Bachelor of Science in Civil and Environmental Engineering from Cornell University and a Master's of Business Administration from the Atkinson Graduate School of Management at Willamette University. Prior to joining CWS in 2011, Taniguchi-Dennis served as the City of Albany Public Works Director for 12 years.

Everything we do at Clean Water Services aims to protect public health, while enhancing the natural environment of the Tualatin River Watershed. Combining science and nature, we work in partnership with others to safeguard the river's health and vitality, ensure the economic success of our region, and protect public health for more than 600,000 residents and businesses in urban Washington County. Although Clean Water Services maintains a close working relationship with Washington County government, it is a separately managed and financed public utility.

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Mark Jockers
Government & Public Affairs Manager
Clean Water Services
503.681.4450 (o)
503.701.4293 (m)

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