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

Monday - February 13, 2017

Future Partnership Governance Structure

In 2008, the cities of Lake Oswego and Tigard formally endorsed a partnership agreement for sharing drinking water resources and costs. Under the current agreement, the City of Lake Oswego is the managing agency responsible for the permitting, design, construction and operation of the new facilities. An Oversight Committee, made up of two elected officials from each city, also acts an advisory group that provides oversight on project issues.

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Wednesday - February 8, 2017

Recent Cryptosporidium Detections in Portland Bull Run Water

The Portland Water Bureau recently detected the presence of Cryptosporidium, a potential pathogenic microorganism, in several samples collected at their Bull Run intake in January and February.

Although our water systems are close to Portland’s, the City of Lake Oswego and Tigard Water Service Area customers receive their drinking water from a different source and the treatment process is also different than Portland’s. Lake Oswego and Tigard Water Service Area’s primary water source is the Clackamas River. The recently upgraded filtration system at our water treatment plant removes Cryptosporidium and pathogens that may be detected in the Clackamas River water supply. Ozone, a powerful oxidant, also provides an additional treatment barrier to protect public health. 

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Friday - January 27, 2017

WR1 columns almost complete; roof deck starts soon

A concrete pour takes place for the footings and columns.

Waluga Reservoir 1 Roof Replacement Construction Update

Crane delivery and removal

On the morning of Tuesday, January 31, a very large (360-ton) crane will be delivered to the site using several large semi-trailer trucks. Due to site constraints, and to minimize traffic impacts during delivery, trucks will be staged near the I-5. Only one truck will enter the site on Carman Drive at a time, unload crane materials and then exit, before another truck then arrives to the site. Five trucks are expected to deliver parts for the crane.

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