Maintenance and Motor Pool
503-635-0280
Maintenance Center
17601 Pilkington Rd
Lake Oswego OR 97035
Water Treatment Plant
503-635-0394
Water Conservation
503-675-3747
Public Works
The Lake Oswego Public Works Department is responsible for maintaining infrastructure systems throughout the City to ensure they are working correctly, efficiently, and that the life of our assets is maximized. Streets, Water, Sewer, Stormwater, Motor Pool and City Beautification maintenance programs make up the department with each responsible for their own infrastructure system.
Here at Public Works, we take pride in providing utility maintenance to help make Lake Oswego a great place to live.
News & Announcements
Lake Oswego, with Portland's support, is proposing to build a new, state-of-the-art wastewater treatment facility to replace the aging Tryon Creek Wastewater Treatment Plant.
Take a virtual tour of the new facility by visiting our online open house! Learn all about the current 60% design plans, highlights of the proposed new wastewater treatment facility, and share your thoughts from November 9 through December 11.
For more details on the project, or to sign-up for e-news, visit the project website.
Your drinking water is clean and safe. Get to know your drinking water by reviewing the latest 2022 Water Quality Report!
The City of Lake Oswego is updating outdated, manually-read water meters to a new, wireless-read technology. These smart meters support efficiencies in our water system.
The main source of lead in drinking water is typically from household plumbing or components associated with service lines. We offer free lead testing to our water customers. If you are concerned about the levels of lead in your home, you can pick up a test kit and instructions at the 2nd floor reception desk at City Hall. For questions about lead testing or your drinking water, call the Water Treatment Plant at 503-635-0394.
Proposed New Wastewater Treatment Facility - Online Open House
Nov 9 2022 - 9:00am
Key Documents and Reports
Forms, Permits, and Applications