Join us for a site tour of the City of Portland Bureau of Environmental Services Columbia Boulevard Wastewater Treatment Plant (CBWTP) Secondary Treatment Expansion Program (STEP). Our first tour of the project focused on the completion of the new secondary clarifiers in October of 2024. This tour will focus on the new Solids Facility as it nears completion and begins startup.
The overall $500-million construction program provides CBWTP with two new secondary clarifiers, new return activated sludge pump station, new mixed liquor and return activated sludge piping, structural surface rehabilitation of the secondary treatment aeration basins, demolition of existing facilities to allow for new facilities, substantial subsurface soil improvements, main electrical substation replacement, new solids dewatering and thickening facility, new solids loadout facility, new steam boiler plant, new storage and operational support buildings, and temporary facilities to maintain plant operation during demolition and construction.
PPE required is pants, boots (sturdy close-toed shoes at a minimum – no high-top sneakers), hard hat, eye protection, and high vis vest. We will have to turn people away in shorts or open-toed shoes.
Directions and parking instructions will be sent to event attendees.
Optional Happy Hour after the tour:
Chill N Fill
5215 North Lombard Street, Portland, OR 97203
5001 N Columbia Blvd
Portland, OR 97203
United States