What is this Project?

This project creates a reliable water system that delivers high-quality drinking water from the Clackamas River to the communities of Lake Oswego and Tigard. Learn more...

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

Project News

Thursday - July 21, 2016

After three years, LO-Tigard water project is online

Final work on treatment plant remains, but main pipeline is now supplying water to both cities

In the news...

The Lake Oswego-Tigard Water Partnership project is now fully online and providing water to both cities.

The $254 million project still has one major milestone ahead: completion of the upgraded water treatment plant in West Linn. But the project’s new pipeline has already taken over as the primary water supply for Tigard and Lake Oswego after three years of construction.

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Thursday - July 14, 2016

Waluga Reservoir 1 Roof Replacement - Tree Pruning Reminder

Waluga Reservoir

Waluga Reservoir

Tree pruning next week

On Wednesday, July 20, workers will begin pruning trees located around the Waluga Reservoir 1. Tree branches located approximately 10 ft. above and around the perimeter of the reservoir roof will be pruned and trimmed. One dead tree will also be removed. This work is expected to take one day to complete. A certified arborist will be on site to monitor the pruning.

Neighbors can expect to see and hear a crew of workers, chain saws, a wood chipper and dump trucks to haul wood chips and debris off site. Crews and equipment will access the site from 4800 Carman Drive. Work hours will be 8 a.m. - 5 p.m. Tree pruning will be completed by a local Lake Oswego Company, Tree Care Unlimited.

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Monday - July 11, 2016

Oversight Committee Meeting Change

The July 11 Oversight Committee Meeting has been cancelled. The next meeting will be held Monday, September 12, 2016 at the Lake Oswego Main Fire Station conference room, 300 B Avenue, Lake Oswego 97034. All meetings are open to the public.

Learn more about the Oversight Committee