California Code, Streets and Highways Code - SHC § 6555

(a) The lien for general taxes or ad valorem assessments in the nature of and collected as taxes levied by the state or county, city, special district or other local agency.

(b) The lien of any special assessment or assessments the lien date of which is prior in time to the lien date of the assessment for which the deed is issued.

(c) Easements constituting servitudes upon or burdens to said lands.

(d) Water rights, the record title to which is held separately from the title to said lands.

(e) Restrictions of record.

If the treasurer of another city, as city is defined by Section 5005, has issued subordinate bonds, as defined by Section 5373, against the same property upon which the treasurer's deed was issued, then the treasurer of the other city shall cancel the subordinate bonds and enter upon the bond register the notation “canceled by foreclosure of prior lien,” provided that he is notified of the issuance of the deed by the owner of the deed.

If the superintendent of streets of another city, as city is defined in Section 5005, has issued subordinate assessments, as defined by Section 5373, against the same property upon which such treasurer's deed was issued, then the superintendent of streets shall cancel the subordinate assessments and enter upon the assessment roll the notation “canceled by foreclosure of prior lien,” provided that he is notified of the issuance of the deed by the owner of the deed.

If the treasurer has issued subordinate bonds, as defined by Section 5373, against the same property upon which the treasurer's deed is issued, then the treasurer shall cancel the subordinate bonds, and enter upon the bond register the notation “canceled by foreclosure of prior lien.”  If the superintendent of streets has issued subordinate assessments, as defined by Section 5373, against the same property upon which such treasurer's deed is issued, then the superintendent of streets shall cancel the subordinate assessments and enter upon the assessment roll the notation “canceled by foreclosure of prior lien,” provided that he is notified of the issuance of the treasurer's deed by either the treasurer or the owner of the deed.