Cal. Sts. & High. Code § 5417

In a complaint in any action for the recovery of an assessment it shall be sufficient to allege briefly that the legislative body ordered the work, the performance of the work under the contract, the making of the assessment, the issuing of the warrant and the making of the diagram; that an assessment (naming the amount) was levied against that certain lot or parcel of land (describing it) which, according to the information and belief of the plaintiff, is owned by the defendant; and that payment of the assessment has not been made.