Water Reuse Practice Guide

Empowering Innovation and Resilience

Photo by Florian Kittemann

Cover of the Onsite Non-Potable Water Reuse Practice Guide

The Onsite Non-potable Water Reuse Practice Guide combines real world examples and step-by-step design, construction and technical information needed for water use systems of all types and sizes at the building and district scale. The Guide is available free of charge in order to advance the design practice and policy of water conservation, efficiency, and reuse.

To develop this objective, credible, and readily understandable resource, the Worthen Foundation formed and facilitated an all-volunteer Working Group of subject matter and industry experts. The Guide was crafted with the support and partnership of industry and institutional partners including the Charles Pankow Foundation, the San Francisco Public Utilities Commission, Google, and AIA California Council.


Water Reuse Guide Chapters

  • Chapter 1: What is Non-Potable Water Reuse?

  • Chapter 2: Is Non-Potable Water Reuse Right for your Project?

  • Chapter 3: Fit for Purpose – The right water for the Right Job

  • Chapter 4: How to Talk About Water Reuse

  • Chapter 5: How Does Non-Potable Water Reuse Impact the Design Process?

  • Chapter 6: Can I Get This Thing Permitted?

  • Chapter 7: Build & Operate A System

Sonoma Academy, WRNS

The Water Reuse Guide was instrumental in developing strategies for the stewardship of water throughout the development and operation of this project.

Make effective use of water resources today.


“The Water Reuse Practice Guide was critical and informative to making the passive and active water reuse systems visually evident within our education projects.”

— Pauline Souza, WRNS