The Lake Oswego Tigard Water Partnership is an agreement between the cities of Lake Oswego and Tigard to share drinking water resources and costs. Both cities jointly own and operate a new, reliable water system that delivers high-quality drinking water from the Clackamas River to the communities of Lake Oswego and Tigard. Learn more...

Our drinking water treatment method is conventional filtration plus ozone. Learn more... Our water system is the most earthquake resilient in Oregon. Learn more... It isn't easy being green, but our water system is sustainable and energy efficient. Learn more...

Partnership Updates

Monday - October 16, 2017

Lake Oswego, Tigard officials celebrate completion of water project

by Anthony Macuk, Lake Oswego Review - October 15, 2017

In the news...

More than 100 elected officials, City staff and project contractors from Lake Oswego and Tigard gathered last week to celebrate the rebuilding of a water treatment plant in West Linn that marks the official completion of the Lake Oswego-Tigard Water Partnership.

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Friday - October 13, 2017

Partnership Celebrates Water Project Completion

On Thursday, October 12, the Lake Oswego Tigard Water Partnership commemorated completion of the $254 million Lake Oswego Tigard Water Partnership Project, a new seismically resilient water system for both communities and the largest public works project both cities have ever undertaken.

More than 100 former and current program staff, elected officials, contractors, consultants, regional water providers and city staff, gathered to commemorate the achievement of building a new, reliable water system and securing water for Lake Oswego and Tigard’s future.

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