Edith Green Wendell Wyatt (EGWW) Federal Building - Aquatherm Domestic Hot Water Service (DHWS) Pipe Replacement (Project 2)

Project Summary: The Edith Green-Wendell Wyatt (EGWW) Federal Building (OR0043ZZ), located at 1220 SW 3rd Ave, Portland, OR 97205, is an 18-story office building located in Portland's government district. The building has been extensively renovated and modernized in a project that was funded under the American Recovery and Reinvestment Act (ARRA) of 2009 and completed on May 1, 2013. This renovation included the replacement of plumbing and mechanical systems. As part of this renovation, random copolymer polypropylene (PP-R) piping was installed for domestic hot and cold water distribution, rainwater collection and recycle, and zone distribution for chilled water and heating hot water systems. Since March of 2018, a total of ten (10) failures have occurred. Seven (7) failures in the two inch (2) PP-R domestic hot water primary loop supply main that extends from water heaters in the penthouse to the basement floor. Two (2) subsequent failures have occurred in the one inch (1) DHW primary loop return and one (1) weld failure in the LTHW hydronic loop. This primary loop serves all of the domestic hot water circulating sub-mains in the building. The most recent failure occurred in January 2020. The building remains at high risk for catastrophic failure until these projects are completed. Project 2: The scope of this project is removal of the PP-R primary domestic hot water Zone 2 and Zone 3 domestic hot water loops and replacement with copper piping. The project scope of work is summarized as follows: Plumbing work: Replace all DHW piping in zone 2 (Levels 3 through 10) and zone 3 (Levels 11 through 18) including new zone supply and return risers Replace zone supply and return loops Replace restroom supply and return loops Replace drops and connections to existing fixtures (190 no. total connections Replace concealed DCW piping in restrooms from above-ceiling isolation valve to sink connections Replace Zone 2 and 3 water heaters and circulation pumps Remove and recycle/dispose of all abandoned piping and equipment Insulate to code and label all new piping and equipment to building standards Pressure test Disinfect new piping Architectural work: Open and repair gypsum board walls to access existing zone riser piping in freight elevator vestibule for replacement Open and repair restroom ceilings and tiled walls for replacement of DHW and in-wall DCW piping Open and repair break room wall for new sink connection Remove and replace light fixtures in restrooms as required to access concealed piping Open and replace plank and lay-in tile ceilings as required for replacement of existing distribution loops (including work in tenant areas) Restore all finishes affected by construction. Additional Services: Provide construction management oversight Commissioning services O&M project support (this cost of additional support shall be captured by the General Contractor): Drain and fill plumbing systems Mechanical system Remove and replace ceiling systems, et al Security services to monitor after-hours work in tenant spaces. Open and replace plank and lay-in tile ceilings as required for replacement of existing distribution loops (including work in tenant areas) Restore all finishes affected by construction. Note: Project 2 is not currently funded for FY20. Funds have been reserved for award in Q1 FY21.