Regulations for onsite treatment and reuse of nonpotable water (SBDDW-22-001)
Summary
SCH Number
2025110732
Public Agency
State Water Resources Control Board, Division of Drinking Water
Document Title
Regulations for onsite treatment and reuse of nonpotable water (SBDDW-22-001)
Document Type
NOE - Notice of Exemption
Received
Posted
11/19/2025
Document Description
The regulations establish risk-based water quality standards and requirements to ensure protection of public health, applicable to project proponents choosing to engage in onsite treatment and reuse of nonpotable water.
Contact Information
Name
Randy Barnard
Agency Name
State Water Resources Control Board
Job Title
Supervising Water Resource Control Engineer (Tech Ops Section Chief)
Contact Types
Lead/Public Agency
Phone
Location
Cities
Statewide
Counties
Alameda, Alpine, Amador, Butte, Calaveras, Colusa, Contra Costa, Del Norte, El Dorado, Fresno, Glenn, Humboldt, Imperial, Inyo, Kern, Kings, Lake, Lassen, Los Angeles, Madera, Marin, Mariposa, Mendocino, Merced, Modoc, Mono, Monterey, Napa, Nevada, Orange, Placer, Plumas, Riverside, Sacramento, San Benito, San Bernardino, San Diego, San Francisco, San Joaquin, San Luis Obispo, San Mateo, Santa Barbara, Santa Clara, Santa Cruz, Shasta, Sierra, Siskiyou, Solano, Sonoma, Stanislaus, Sutter, Tehama, Trinity, Tulare, Tuolumne, Ventura, Yolo, Yuba
Regions
Statewide
Other Information
Statewide
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
Class 7 - section 15307; Class 8 - section 15308
Reasons for Exemption
Adoption of the proposed regulations would provide a statewide health-protective standards for project proponents to collect alternate water sources generated onsite that would have otherwise be disposed into sanitary sewer or storm drainage network. Onsite treatment and reuse of nonpotable water projects may allow Californians to collect, treat, and safely use alternate water sources for beneficial purposes and offset uses of potable water from nonpotable water uses. When implemented collectively, onsite treatment and reuse of nonpotable water would reduce the dependence of these premises on sources of potable water (i.e. groundwater and surface water) and result in more water available for uses such as the protection and enhancement of natural resources and the environment. Water Code section 13558.1, subdivision (a) requires that onsite treated nonpotable water systems be installed under a local jurisdiction program, which includes permitting procedures for individual projects.
County Clerks
Alameda, Alpine, Amador, Butte, Calaveras, Colusa, Contra Costa, Del Norte, El Dorado, Fresno, Glenn, Humboldt, Imperial, Inyo, Kern, Kings, Lake, Lassen, Los Angeles, Madera, Marin, Mariposa, Mendocino, Merced, Modoc, Mono, Monterey, Napa, Nevada, Orange, Placer, Plumas, Riverside, Sacramento, San Benito, San Bernardino, San Diego, San Francisco, San Joaquin, San Luis Obispo, San Mateo, Santa Barbara, Santa Clara, Santa Cruz, Shasta, Sierra, Siskiyou, Solano, Sonoma, Stanislaus, Sutter, Tehama, Trinity, Tulare, Tuolumne, Ventura, Yolo, Yuba
Attachments
Notice of Exemption
Disclaimer: The Governor’s Office of Land Use and Climate Innovation (LCI) accepts no responsibility for the content or accessibility of these documents. To obtain an attachment in a different format, please contact the lead agency at the contact information listed above. For more information, please visit LCI’s Accessibility Site.