Cal. Sts. & Hy. Code § 5366
The owners, the contractor, or his assigns, and all other persons interested in any work done under this division, or in the assessment, feeling aggrieved by any act or determination of the superintendent of streets or engineer in relation thereto, or who claim that the work has not been performed according to the contract in a good and substantial manner or who claim that any portion of the work for any reason was omitted or illegally included in the contract or having or making any objection to the correctness of the assessment or diagram or other act, determination or proceedings of the superintendent of streets or engineer, shall prior to the day fixed for the hearing upon the assessment appeal to the legislative body by briefly stating in writing the grounds of appeal. Any objection, appeal or protest not made at the time and in the manner hereinabove provided shall be deemed to be waived voluntarily by any person who might have made such appeal, protest or objection, and such person shall be deemed to have consented to the proposed assessment and any other matter on which objection, protest or appeal could be made.
Ca. Sts. and High. Code § 5366