California Code, Health and Safety Code - HSC § 6550.3

The secretary shall give notice of the time and place of the hearing by causing a copy of the resolution adopted pursuant to Section 6550.2 to be published for the time provided by Section 6066 of the Government Code in a newspaper of general circulation, circulated in the proposed improvement district, but if there is no such newspaper, then in one circulated in the county in which the proposed improvement district is situated. The secretary shall also mail copies of the resolution to all landowners owning land within the proposed improvement district.