Recycled water is regulated by the California Department of Public Health and the State Water Resources Control Board, California Regional Water Quality Control Boards, and the U.S. Environmental Protection Agency. These regulatory agencies have approved the use of recycled water for:
- Agricultural irrigation
- Industrial uses (cooling and other uses)
- Landscape irrigation (golf courses, school yards, parks, homeowners' associations)
- Recreational lakes
Recycled water is appropriate for all human contact, except for drinking.