Greywater Resources

Legal Requirements:

Generally, a laundry to landscape greywater system will not require a permit.  However, it must be installed following the California Plumbing Code: Chapters 16 and 16A describe graywater requirementsCheck with your local building or permitting department for additional rules to consider when planning your project.


Assistance Finding Installers, Equipment, and Additional Information:

  • Greywater Action This organization has an extensive amount of information on greywater including many resourced for designing a system, purchasing equipment and installation assistance.
  • Central Coast Greywater Alliance This organization also has an extensive amount of information

Soaps and Detergents: Key Tips and General Information

Other Helpful Links:

Questions or Broken Links? Call the Water Conservation Hotline at (925) 688-8320 or email us at