Cal. Rev. & Tax. Code § 4153

The county assessor shall determine a separate valuation on the parcel for each of the years for which it was delinquent, and shall determine the valuation of the remaining parcel for each of the years for which it was delinquent. The sum of the valuations of the parcels shall equal their total valuation before separation.

If the application requested that the tax created by the assessment of personal property, or leasehold improvements, or possessory interests be allowed to remain as a lien on the parcel sought to be separately valued, and the assessor determines that the value of the parcel is sufficient to secure the payment of the tax, the assessor shall set forth the value of such personal property, or leasehold improvements, or possessory interest, for each of the years for which it was delinquent, opposite his determination of the value of the parcel.