Cal. Sts. & Hy. Code § 10600.1
If provision is made for the issuance of bonds under the Improvement Act of 1911 (Division 7 (commencing with Section 7000)), all assessments under one hundred fifty dollars ($150) which are not paid within 30 days after recordation of the assessment are delinquent and shall bear interest at the rate of 1 percent per month, the interest to be computed from the date of the bonds. The legislative body may order the collection of any such delinquent assessments pursuant to either Chapter 18 (commencing with Section 5410) or Chapter 18.1 (commencing with Section 5450) of Part 3 of Division 7. All references in those chapters to the contractor, his assignee, his assigns, or his agent shall be deemed to refer to the city. References in Section 5451 to interest from the "date of filing the original assessment" shall be deemed to refer to the "date of the bonds."
Ca. Sts. and High. Code § 10600.1