Lake Oswego Water Treatment Plant
The City of Lake Oswego has operated a drinking water treatment plant in West Linn’s Robinwood neighborhood since 1968. The Lake Oswego Tigard Water Partnership plans to upgrade and expand the treatment plant, located between Kenthorpe Way and Mapleton Drive, to meet current and future drinking water needs. The upgraded plant will supply Lake Oswego and Tigard, and will continue to serve as West Linn’s sole source of emergency and backup water supply.
History of the Water Treatment Plant
Built in 1968, Lake Oswego’s water treatment plant was originally located in unincorporated Clackamas County. The area was later annexed by West Linn. Through its 44-year history the plant has earned a reputation as a good neighbor. The City of West Linn has approved land use applications for upgrades and expansions three times since the plant was built.
It is not uncommon for wastewater and water treatment plants to be located in residential areas. South Fork Water Board’s treatment plant – jointly owned by West Linn and Oregon City – is located in Oregon City’s Park Place neighborhood. Extensive upgrading, expansion and treatment modifications have occurred there over the past several years to serve the two communities.
Water Treatment Plant – Good Neighbor Plan
Lake Oswego Tigard Water Partnership began discussions with the Robinwood Neighborhood Association in early 2010, sharing details of the water treatment plant expansion, listening to suggestions, and finding ways for the upgraded water plant to continue to be a good neighbor. Two years later, the Partnership has met with Robinwood neighbors more than 20 times, developing a Good Neighbor Plan (pdf, 308 kb) that contains the Partnership’s commitments for design–construction–operations of the new facility. Neighborhood input played a big role in design concepts with the addition of numerous plant layout changes and amenities requested by neighbors.
How to Get Involved
- Click here for upcoming meeting dates.
- Sign up to receive email notices. Mark the ‘Water Treatment Plant' as your interest.
- Click here to contact us by email.
- Call the Water Hotline (503) 697-6502.
- Vibration Monitoring Report, Jan 27 – Feb 10 2014 (pdf 1.7 mb)
- Questions and Answers from March 13th RNA meeting.
- Preconstruction activities handout.
- Business Case Evalution Executive Summary
You can find regular updates on the Work Underway page.
This week at the WTP, crews have been busy forming walls and pouring concrete for base slabs in the clearwell, placing electrical and control conduit in the ballasted flocculation base and excavating next to the west of the lagoon area.
Next week, auger cast pile drilling will resume for new foundations including the gravity thickener and solids storage tank structures, along with the foundation for the second tower crane.
In late March, the second tower crane will be installed, located on the west of the site. Pre-work will be occurring over the next few weeks to prepare for crane assembly and the foundation.
Although there are no anticipated “new” activities or new sources of noise or vibration, neighbors can expect some noise and potential vibration during the auger cast drilling, concrete work and excavation, depending on locations or personal sensitivities. Also, there will be an increase in truck traffic with concrete trucks and dump trucks hauling spoils off site during the concrete pouring.
After daylight savings begins, work hours will be increasing Monday to Friday from 7:00 a.m. to 7:00 p.m. and Saturdays, from 9:00 a.m. to 5:00 p.m., which are allowed within the conditions of approval for the project.
Next Meeting Tuesday 3/4 at 7:30 a.m.
The 12th bi-monthly water treatment plant neighborhood construction update meeting was held on Tuesday, February 18, at Burgerville in West Linn. 25 neighbors, a City of West Linn Councilor and City of West Linn Public Works staff person attended, learned about upcoming construction and asked questions of the project team. All meeting materials are available on the project website under the ‘Past Public Meetings’ page here. A link to the February 18 meeting summary, including discussion and action items can be found here.
The next meeting will be held on Tuesday, March 4, at 7:30 a.m. in the downstairs restaurant area at Burgerville, 18350 Willamette Drive in West Linn. Please come along to keep updated on construction progress and find out about upcoming work. Coffee and cookies provided by Burgerville.
For more information, please contact us.
Tuesday - May 20, 2014
Burgerville (18350 Willamette Dr West Linn, OR 97068 - Downstairs Area)
Meetings scheduled for 7:30-8:30 am the 1st Tuesday of the month and 6:00-7:00 pm the 3rd Tuesday of the month.