US Cities Plan $230m Water Treatment Upgrade

The US cities of Lake Oswego and Tigard are to invest $230m in upgrading their water treatment capacity.

The project includes building an intake facility at the Clackamas River at Gladstone, constructing larger pipes, expanding the water treatment facility in West Linn, building a new reservoir in the Waluga neighbourhood of Lake Oswego and replacing Tigard’s Bonita pump station.

The plant expansion is expected to increase the area’s water treatment capacity from 16 million gallons a day to 38 million gallons, representing about $70m of the project cost.

The plant will use ozone to eliminate the presence of personal care products, pharmaceuticals, pesticides and herbicides from water, and improve its taste.

The project will begin in 2012 and is expected to be completed by July 2016, according to www.westlinntidings.com.