the Greywater Alliance

Contact the Alliance


Greywater Roundtable Resources

The Greywater Alliance invites you to join us for our 2010, five-part series of discussions and presentations for the Bay Area greywater community.  Whether you came to the presentations or not, you can review copies of the presentations and also contact and network with others who attended.

Roundtable 1 - The Role of Water Districts in Promoting Greywater Reuse - March 18, 2010

You may see a .pdf of two of the presentations here:

Paul Piazza, Town of Windsor: Easing Permitting Restrictions and Greywater Rebates

Sean McNeil, City of Santa Rosa: Graywater Systems in the City of Santa Rosa

Here is a list of the attendees of Roundtable #1.

Roundtable 2 - Lessons from a Graywater Pioneering State - May 28, 2010


Willie Lord, EcoLogical Builders - Greywater Laundry to Landscape

Val Little, WaterCASA - Lessons from a Graywater Pioneering State

Here is a list of the attendees of Roundtable #2.

Here are notes from the presentations.

Roundtable 3 - The New California Greywater Standards:
Perspectives on Permit Compliance - July 29, 2010


Laura Allen, Graywater Action and Jon Bauer, EBMUD - Branched Drain System Install in Oakland

Roger Rushing, City of Berkeley - Graywater Permitting in Berkeley

Here is a list of the attendees of Roundtable #3.

Roundtable 4 - Perceived vs. Actual Risks: Greywater and Pathogens - September 30, 2010


Dr. Kara Nelson, Associate Professor of Civil and Environmental Engineering from the University of California, Berkeley.
- Manuel Ramirez, Environmental Health Manager from the City of Berkeley, Greywater: An Environmental Health Perspective.
- June M. Weintraub, ScD. Senior Epidemiologist, Environmental Health from the City and County of San Francisco Department of Public Health, Greywater and Other Non-Potable Waters in San Francisco.
- Brent Bucknum from Hyphae Design Laboratory will discuss an integrated greywater and rainwater system installation in the City of Berkeley, Graywater Complex System Installations.

Here is a list of the attendees of Roundtable #4.

Roundtable 5 - What Have We Learned and Where Are We Going? - November 18, 2010

In the final roundtable of this series, we featured presentations that presented an overview of greywater activities since the implementation of California Plumbing Code Chapter 16A.  Items highligted included the following:
- residential permits applied for
- systems installed (laundry to landscape and permitted)
- formal or informal discussions (ie. local groups discussing greywater, or water districts talking about an incentive program)
- greywater programs, trainings, workshops that have happened in your area
- local policies that have changed or incentive programs created as a result
- lessons learned
Laura Allen of Greywater Alliance and Greywater Action discussed developments across the state of California and Sherry Bryan of the South Coast Graywater Alliance discussed activities in the Monterey Bay area.  
Juliet Christian-Smith from the Pacific Institute also presented a discussion on the potential for greywater to help California meet the goals of the 2020 Plan (20% reduction by the year 2020).