California
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Video series from Valley Water
Valley Water has a nine part video series, including short info videos, plus full length webinars. One webinar is dubbed in multiple languages (Spanish, Mandarin and Vietnamese). View view series here.
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List of professionals- Valley Water
Valley Water maintains a list of landscape professionals who may be about to install a laundry-to-landscape system. View the searchable list here. This is a searchable list of landscape design, construction, and maintenance companies who have had experience with the Valley Water Landscape Rebate Program and/or installing laundry-to-landscape graywater systems.
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Santa Barbara Greywater Manual (Spanish)
Spanish version of the Santa Barbara County Greywater Manual.
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Santa Barbara Greywater Manual
Manual put out by Santa Barbara County. (Also available in Spanish.)
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L2L Schematic from Valley Water
This pdf from Valley Water shows all the parts for a laundry to landscape system.
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Valley Water (San Jose) Rebate for Laundry-to-Landscape Systems
Valley Water has a graywater rebate program for residents. Here is some information from their website (accessed May 27, 2026) Through Valley Water’s Graywater Rebate Program, receive either $200 or $400 to install a Graywater Laundry-to-Landscape System to make your landscape more resilient with a local, sustainable water supply. Read below to learn rebate amount you…
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San Francisco PUC’s L2L Greywater Presentation
This presentation is part of the San Francisco Public Utilities Commission’s L2L incentive program. It is available on their website here.
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California Plumbing Code
In California cities, graywater is regulated under Chapter 15 of the plumbing code. (For sites outside of city limits, the county department of environmental health typically regulates graywater.) Chapter 15 of the 2025 California Plumbing Code can be viewed here.
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FAQs from San Francisco Water, Power, Sewer
(This FAQ is from the SFPUC’s website here.
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Sonoma County
While Sonoma County does not have a program, they do have information on their website about greywater to help residents of the county install a system.