Wastewater – Slayden

Washougal Wastewater Treatment Plant

Project Stats Owner: City of Washougal Value: $13M Method: DBB Location: Washougal, WA Washougal is a small city on the Columbia River, just east of the Portland-Vancouver metro area. The City selected Slayden to double the treatment capacity of their existing wastewater treatment plant (WWTP), increasing their capacity from 2.24 MGD to 4.48 MGD. These…

Spokane River Side Park Water Reclamation Facility

Slayden and MWH Constructors worked with the City of Spokane to achieve major upgrades to their Riverside Park Water Reclamation Facility. The upgrade included a Next Level of Treatment (NLT) – a new membrane filtration system that significantly improved the quality of effluent released into the Spokane River. The primary reason for the NLT was…

Hermiston Recycled Water Plant Improvements

The City of Hermiston prioritized this $18M DBB project that removed a persistent pollutant in its effluent and improved the water quality for residents. It integrated a new 6 MGD membrane filtration system into an existing 2 MGD. It also included upgrades to the existing headworks structure including new screens and a new fine screen…

Medford RWRF Cogen

The Regional Water Reclamation Facility was originally constructed in 1969 and provides sewage treatment for Medford, Central Point, Phoenix, Talent, Jacksonville, Eagle Point, and White City. The RWRF was phased construction of improvements to expand the RWRF to comply with discharge standards and provide increased capacity for regional growth. Current capacity is 20 MGD dry…

Medford RAS System Improvements

This project served the City of Medford by more than doubling their capacity to handle the secondary waste water process. The job consisted of demolition and re-installation of mechanisms on (5) 90’ clarifiers, installation of (5) new Vertical Turbine Pumps including excavation and installation of 30’ pump cans to house the Vertical Turbine Pumps. Slayden…

Willow Lake WPCP Headworks and Primary Treatment Improvements

Slayden was selected as the CM/GC on this $92 MM Headworks and Pumping Plant Project for the City of Salem. This fast track project included construction of new headworks, influent and primary pump station, bar screen facility, two electrical buildings, two new primary clarifiers, effluent analyzer building, and an effluent diversion structure. Specific work components…

Medford RWRF RAS System Improvements Project

This project served the City of Medford by more than doubling their capacity to handle the secondary waste water process. The job consisted of demolition and re-installation of mechanisms on (5) 90’ clarifiers, installation of (5) new Vertical Turbine Pumps including excavation and installation of 30’ pump cans to house the Vertical Turbine Pumps. Slayden…