Cal. Sts. & Hy. Code § 10603
When the resolution of intention provides for the issuance of bonds, the superintendent of streets of a city, surveyor of a county, or district engineer of a public corporation, conducting the proceedings shall give the notice of recording the assessment, and collect and receive the assessments. The legislative body of the public entity conducting the proceedings may, by resolution, designate the treasurer, tax collector, or other officer of the entity to collect and receive the money. If the entity is a public corporation it may designate the treasurer or tax collector of the county in which it is situated to collect and receive the money. The person so designated shall execute any certificates relating to the amount of assessments paid or remaining unpaid which are required to be executed by the superintendent of streets by the law pursuant to which bonds are to be issued, including, but not limited to, Sections 6420 and 8620.
Ca. Sts. and High. Code § 10603