1. (a) Prior to supplying onsite treated nonpotable water for indoor uses, building tenants and/or residents must be informed of the use of onsite treated nonpotable water, and any plumbing modifications or repairs in the building unit require approval by the responsible entity. The responsible entity must document that the tenants and/or residents are provided with the information.
2. (b) The responsible entity must notify the local jurisdiction by phone and electronic mail as soon as possible and no later than 24 hours of discovery of the delivery of inadequately-treated onsite treated nonpotable water to a use area.
3. (c) The responsible entity must provide written notification to building tenants and/or residents no later than 24 hours of discovery of the delivery of inadequately-treated onsite treated nonpotable water for indoor uses.

Note: Authority cited: Sections 13558 and 13558.1, Water Code; and Sections 116271 and 116350, Health and Safety Code. Reference: Sections 13558 and 13558.1, Water Code.

History

1. New section filed 4-22-2026; operative 4-22-2026 pursuant to Water Code section 13558(f) (Register 2026, No. 17).