Spokane River Side Park Water Reclamation Facility

Slayden and MWH Constructors are working with the City of Spokane on major upgrades to their Riverside Park Water Reclamation Facility. This upgrade will include Next Level of Treatment which is a new filtration system that will greatly improve the quality of effluent that is released into the Spokane River. The major reason for the Next Level of Treatment is to lower phosphorus levels from the effluent from 90% to 99%. This new filtration system will also remove greater amounts of heavy metals, PCBs, and other pollutants associated. The new advanced membrane filtration technology will provide pollution reduction benefits and is designed to treat an average wastewater flow of 50 MGDs. This Next Level of Treatment upgrade is part of a major initiative to improve the health of the Spokane River. Once this upgrade is completed the system will treat the wastewater to a “Class A” standard; which would allow the water to be reused for irrigation, dust control, industrial processes, enhancing wetlands, and recharging groundwater supplies.

  • Under Construction
  • Total Project Value: $126 million
  • Delivery Methods: CM/GC
  • Owner: City of Spokane

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