If the grantee of any franchise granted under this chapter fails, neglects or refuses to comply with any of the provisions or conditions prescribed in this chapter, and does not within ten (10) days after written demand for compliance begin the work of compliance, or after such beginning does not prosecute the work with due diligence to completion, the municipality, by its legislative body, may declare the franchise forfeited.
Ca. Pub. Util. Code § 6291