Cal. Health & Safety Code § 116908
(a)
(1)
(C) When the covered water system contacts the customer named on the account by written notice pursuant to subparagraph (A), the written notice of payment delinquency and impending discontinuation shall be mailed to the customer of the residence to which the residential service is provided. If the customer’s address is not the address of the property to which residential service is provided, the notice also shall be sent to the address of the property to which residential service is provided, addressed to “Occupant.” The notice shall include, but is not limited to, all of the following information in a clear and legible format: