Framework guides installation of decentralized non-potable water systems

摘要

Decentralized non-potable water (DNW) systems can offer wastewater reuse without requiring installation of extensive infrastructure. To help public health agencies develop effective systems, researchers developed a framework for the safe, consistent implementation and management of DNW systems. The research team developed a risk-based framework to establish scale-appropriate public health guidance for DNW systems. The framework includes reduction targets for pathogens to inform the design of DNW systems based on multiple combinations of source water and end-use of the non-potable water supply. It also includes recommendations on monitoring plans for water quality, management considerations for systems, strategies for permitting projects, and applications and end uses of treated alternate water sources.