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Presenting on Design and Construction of Non-Potable Water System for Municipal Irrigation

By April 20, 2023No Comments

Principal Hydrogeologist Jason Melady, RG, CWRE, will be co-presenting at the Pacific Northwest Section (PNWS) of the American Waterworks Association (AWWA) 2023 Annual Conference in Kennewick, Washington, on May 3-5, 2023. The project team’s presentation “Seeing Purple: Design and Construction of the City of Beaverton’s Non-Potable Water System for Municipal Irrigation” will demonstrate how the City of Beaverton, Oregon, initiated the formation of a non-potable water utility to provide irrigation supply to the rapidly developing area referred to as South Cooper Mountain.

The non-potable utility capitalizes on previous investments made by the City in its successful aquifer storage and recovery (ASR) program to provide a cost-effective supply of water for irrigation that would otherwise be derived from the City’s limited drinking water supplies. Additionally, the non-potable system will use treated wintertime residential stormwater through an innovative treatment process and stored in the subsurface via ASR to augment the irrigation supply and enhance summertime streamflows.

Jason, Brian Diaz with the City of Beaverton, Alex Bargmeyer with Consor, and Ronan Igloria with GSI, will describe the development and construction of a unique and innovative non-potable water utility in the Pacific Northwest and include discussion of the challenges in development of a complex project that combines drinking water and stormwater regulatory systems with custom designed water treatment components in a newly formed non-potable water system utility.

The presentation will cover major progress and achievements to-date including overall system design and integration with the site, construction of stormwater treatment and ASR pump station facilities, and operation and maintenance considerations. The facility is scheduled to be operational in 2023.

The information shared will help operators understand the integration and interface between potable and non-potable water systems from an administrative and technical operations perspective.

AWWA PNWS provides leadership to drinking water professionals in Washington, Oregon and Idaho. Learn more about the event.