Friday - March 31, 2017

Operator training underway on the new ozone system

Dismantling the red mobile crane.

Inside the ozone generator.

Water Treatment Plant Construction Update

On Thursday, the third and final crane that was used for construction was dismantled and removed off-site. As construction comes to a close, more equipment and materials will be leaving the site.

In mid-April, crews expect to remove the large construction trailers currently located on the western corner of the site. Removal is expected to take about a week. A small trailer will be present for the remaining work, near where the carpenters' shed was located on the west side of the site.

Recent work

WTP staff have been undertaking intense training for the new ozone system. The system is undergoing startup and testing through the next month. The photo herein shows the inside of one of the two ozone generators. The generator uses electrical energy to transform oxygen into ozone for the water treatment process. By early May, the ozone system is expected to be fully operational. This marks the final change in the water treatment process at the plant.

Elsewhere on the site, civil crews continue working on sidewalks, curbs, gutters, catch basins, site walls, stone walls, light pole bases and miscellaneous piping.

Miscellaneous demolition work – early April

On Monday, April 3, crews will begin removing the temporary carpenters' shed (near the construction trailers) and the west side wheel wash. On Monday, crews will need to use an excavator with a hammer attachment to break up the concrete slabs that were installed for these structures. Neighbors may notice an increase in intermittent noise and possible vibration while the hammer is in use. This activity is expected to take one day to complete. Thank you to neighbors for your patience during this work.

Other activities occurring in April

Through April, crews expect to be forming and pouring curbs, gutters and catch basins; installing site irrigation; forming the pedestrian pathway; installing pervious pavers; grading the site; and paving asphalt areas (weather dependent).

Neighborhood construction meetings – next meeting April 18

Meetings are held once a month at the Robinwood Station, 3706 Cedaroak Drive, West Linn, on the third Tuesday of the month at 6 p.m.

The next neighborhood construction meeting will be held on Tuesday, April 18 at 6 p.m. Please attend to stay up-to-date on construction progress and ask the project team questions.

Work hours

Work hours are 7 a.m. to 7 p.m., Monday to Friday, and 9 a.m. to 5 p.m. on Saturday. Typically crews are actively working 7 a.m. – 3 p.m. Monday to Friday, with some Saturday work.

WTP tours

The next tour will be held on Thursday, May 25 at 10 a.m. Please contact us and indicate in the subject line you would like to attend the next tour, along with your contact information.

Site plan and glossary

Please refer to the site plan for locations of each structure or our glossary of terms for construction and operation of the WTP.

For more information, please contact us or attend a neighborhood construction meeting.